Files
openlayers/externs/xol.js
2018-03-11 10:41:27 -06:00

1833 lines
107 KiB
JavaScript

/**
* @typedef {Object} control_ControlOptions
* @property {Element|undefined} element The element is the control's container element. This only needs to be
* specified if you're developing a custom control.
* @property {function(ol.MapEvent)|undefined} render Function called when the control should be re-rendered. This is called
* in a requestAnimationFrame callback.
* @property {Element|string|undefined} target Specify a target if you want the control to be rendered outside of the map's
* viewport.
*/
/**
* @typedef {Object} control_FullScreenOptions
* @property {string|undefined} className CSS class name. Default is `ol-full-screen`.
* @property {string|Element|undefined} label Text label to use for the button. Default is `\u2922` (NORTH EAST AND SOUTH WEST ARROW).
* Instead of text, also an element (e.g. a `span` element) can be used.
* @property {string|Element|undefined} labelActive Text label to use for the button when full-screen is active.
* Default is `\u00d7` (a cross).
* Instead of text, also an element (e.g. a `span` element) can be used.
* @property {string|undefined} tipLabel Text label to use for the button tip. Default is `Toggle full-screen`
* @property {boolean|undefined} keys Full keyboard access.
* @property {Element|string|undefined} target Specify a target if you want the control to be rendered outside of the map's
* viewport.
* @property {Element|string|undefined} source The element to be displayed fullscreen. When not provided, the element containing the map viewport will be displayed fullscreen.
*/
/**
* @typedef {Object} control_MousePositionOptions
* @property {string|undefined} className CSS class name. Default is `ol-mouse-position`.
* @property {module:ol/coordinate~CoordinateFormat|undefined} coordinateFormat Coordinate format.
* @property {ol.ProjectionLike} projection Projection.
* @property {function(ol.MapEvent)|undefined} render Function called when the control should be re-rendered. This is called
* in a requestAnimationFrame callback.
* @property {Element|string|undefined} target Specify a target if you want the control to be rendered outside of the map's
* viewport.
* @property {string|undefined} undefinedHTML Markup for undefined coordinates. Default is `` (empty string).
*/
/**
* @typedef {Object} control_OverviewMapOptions
* @property {boolean|undefined} collapsed Whether the control should start collapsed or not (expanded).
* Default to `true`.
* @property {string|Element|undefined} collapseLabel Text label to use for the expanded overviewmap button. Default is `«`.
* Instead of text, also an element (e.g. a `span` element) can be used.
* @property {boolean|undefined} collapsible Whether the control can be collapsed or not. Default to `true`.
* @property {string|Element|undefined} label Text label to use for the collapsed overviewmap button. Default is `»`.
* Instead of text, also an element (e.g. a `span` element) can be used.
* @property {Array.<ol.layer.Layer>|ol.Collection.<ol.layer.Layer>|undefined} layers Layers for the overview map. If not set, then all main map layers are used
* instead.
* @property {function(ol.MapEvent)|undefined} render Function called when the control should be re-rendered. This is called
* in a requestAnimationFrame callback.
* @property {Element|string|undefined} target Specify a target if you want the control to be rendered outside of the map's
* viewport.
* @property {string|undefined} tipLabel Text label to use for the button tip. Default is `Overview map`
* @property {ol.View|undefined} view Custom view for the overview map. If not provided, a default view with
* an EPSG:3857 projection will be used.
*/
/**
* @typedef {Object} control_ScaleLineOptions
* @property {string|undefined} className CSS Class name. Default is `ol-scale-line`.
* @property {number|undefined} minWidth Minimum width in pixels. Default is `64`.
* @property {function(ol.MapEvent)|undefined} render Function called when the control should be re-rendered. This is called
* in a requestAnimationFrame callback.
* @property {Element|string|undefined} target Specify a target if you want the control to be rendered outside of the map's
* viewport.
* @property {ol.control.ScaleLineUnits|string|undefined} units Units. Default is `metric`.
*/
/**
* @typedef {Object} control_RotateOptions
* @property {string|undefined} className CSS class name. Default is `ol-rotate`.
* @property {string|Element|undefined} label Text label to use for the rotate button. Default is `⇧`.
* Instead of text, also an element (e.g. a `span` element) can be used.
* @property {string|undefined} tipLabel Text label to use for the rotate tip. Default is `Reset rotation`
* @property {number|undefined} duration Animation duration in milliseconds. Default is `250`.
* @property {boolean|undefined} autoHide Hide the control when rotation is 0. Default is `true`.
* @property {function(ol.MapEvent)|undefined} render Function called when the control should be re-rendered. This is called
* in a requestAnimationFrame callback.
* @property {function()|undefined} resetNorth Function called when the control is clicked. This will override the
* default resetNorth.
* @property {Element|string|undefined} target Specify a target if you want the control to be rendered outside of the map's
* viewport.
*/
/**
* @typedef {Object} control_ZoomOptions
* @property {number|undefined} duration Animation duration in milliseconds. Default is `250`.
* @property {string|undefined} className CSS class name. Default is `ol-zoom`.
* @property {string|Element|undefined} zoomInLabel Text label to use for the zoom-in button. Default is `+`.
* Instead of text, also an element (e.g. a `span` element) can be used.
* @property {string|Element|undefined} zoomOutLabel Text label to use for the zoom-out button. Default is `-`.
* Instead of text, also an element (e.g. a `span` element) can be used.
* @property {string|undefined} zoomInTipLabel Text label to use for the button tip. Default is `Zoom in`
* @property {string|undefined} zoomOutTipLabel Text label to use for the button tip. Default is `Zoom out`
* @property {number|undefined} delta The zoom delta applied on each click.
* @property {Element|string|undefined} target Specify a target if you want the control to be rendered outside of the map's
* viewport.
*/
/**
* @typedef {Object} control_ZoomSliderOptions
* @property {string|undefined} className CSS class name.
* @property {number|undefined} duration Animation duration in milliseconds. Default is `200`.
* @property {number|undefined} maxResolution Maximum resolution.
* @property {number|undefined} minResolution Minimum resolution.
* @property {function(ol.MapEvent)|undefined} render Function called when the control should be re-rendered. This is called
* in a requestAnimationFrame callback.
*/
/**
* @typedef {Object} control_ZoomToExtentOptions
* @property {string|undefined} className Class name. Default is `ol-zoom-extent`.
* @property {Element|string|undefined} target Specify a target if you want the control to be rendered outside of the map's
* viewport.
* @property {string|Element|undefined} label Text label to use for the button. Default is `E`.
* Instead of text, also an element (e.g. a `span` element) can be used.
* @property {string|undefined} tipLabel Text label to use for the button tip. Default is `Zoom to extent`
* @property {ol.Extent|undefined} extent The extent to zoom to. If undefined the validity extent of the view
* projection is used.
*/
/**
* @typedef {Object} format_ReadOptions
* @property {ol.ProjectionLike} dataProjection Projection of the data we are reading. If not provided, the projection will
* be derived from the data (where possible) or the `defaultDataProjection` of
* the format is assigned (where set). If the projection can not be derived from
* the data and if no `defaultDataProjection` is set for a format, the features
* will not be reprojected.
* @property {ol.Extent} extent Tile extent of the tile being read. This is only used and required for
* {@link ol.format.MVT}.
* @property {ol.ProjectionLike} featureProjection Projection of the feature geometries created by the format reader. If not
* provided, features will be returned in the `dataProjection`.
*/
/**
* @typedef {Object} format_WriteOptions
* @property {ol.ProjectionLike} dataProjection Projection of the data we are writing. If not provided, the
* `defaultDataProjection` of the format is assigned (where set). If no
* `defaultDataProjection` is set for a format, the features will be returned
* in the `featureProjection`.
* @property {ol.ProjectionLike} featureProjection Projection of the feature geometries that will be serialized by the format
* writer. If not provided, geometries are assumed to be in the
* `dataProjection` if that is set; in other words, they are not transformed.
* @property {boolean|undefined} rightHanded When writing geometries, follow the right-hand rule for linear ring
* orientation. This means that polygons will have counter-clockwise exterior
* rings and clockwise interior rings. By default, coordinates are serialized
* as they are provided at construction. If `true`, the right-hand rule will
* be applied. If `false`, the left-hand rule will be applied (clockwise for
* exterior and counter-clockwise for interior rings). Note that not all
* formats support this. The GeoJSON format does use this property when writing
* geometries.
*
* @property {number|undefined} decimals Maximum number of decimal places for coordinates. Coordinates are stored
* internally as floats, but floating-point arithmetic can create coordinates
* with a large number of decimal places, not generally wanted on output.
* Set a number here to round coordinates. Can also be used to ensure that
* coordinates read in can be written back out with the same number of decimals.
* Default is no rounding.
*
*/
/**
* @typedef {Object} format_GeoJSONOptions
* @property {ol.ProjectionLike} defaultDataProjection Default data projection. Default is `EPSG:4326`.
* @property {ol.ProjectionLike} featureProjection Projection for features read or written by the format. Options passed to
* read or write methods will take precedence.
* @property {string|undefined} geometryName Geometry name to use when creating features.
* @property {boolean|undefined} extractGeometryName Certain GeoJSON providers include the geometry_name field in the feature
* geoJSON. If set to `true` the geoJSON reader will look for that field to
* set the geometry name. If both this field is set to `true` and a
* `geometryName` is provided, the `geometryName` will take precedence.
* Default is `false`.
*/
/**
* @typedef {Object} format_EsriJSONOptions
* @property {string|undefined} geometryName Geometry name to use when creating features.
*/
/**
* @typedef {Object} format_MVTOptions
* @property {undefined|function((ol.geom.Geometry|Object.<string,*>)=)| function(ol.geom.GeometryType,Array.<number>,
(Array.<number>|Array.<Array.<number>>),Object.<string,*>,number)}
featureClass Class for features returned by {@link ol.format.MVT#readFeatures}. Set to
* {@link ol.Feature} to get full editing and geometry support at the cost of
* decreased rendering performance. The default is {@link ol.render.Feature},
* which is optimized for rendering and hit detection.
* @property {string|undefined} geometryName Geometry name to use when creating features. Default is 'geometry'.
* @property {string|undefined} layerName Name of the feature attribute that holds the layer name. Default is 'layer'.
* @property {Array.<string>|undefined} layers Layers to read features from. If not provided, features will be read from all
* layers.
*/
/**
* @typedef {Object} format_PolylineOptions
* @property {number|undefined} factor The factor by which the coordinates values will be scaled.
* Default is `1e5`.
* @property {ol.geom.GeometryLayout|undefined} geometryLayout Layout of the feature geometries created by the format reader.
* Default is `ol.geom.GeometryLayout.XY`.
*/
/**
* @typedef {Object} format_TopoJSONOptions
* @property {ol.ProjectionLike} defaultDataProjection Default data projection. Default is `EPSG:4326`.
* @property {string|undefined} layerName Set the name of the TopoJSON topology `objects`'s children as feature
* property with the specified name. This means that when set to `'layer'`, a
* topology like
* ```
* {
* "type": "Topology",
* "objects": {
* "example": {
* "type": "GeometryCollection",
* "geometries": []
* }
* }
* }
* ```
* will result in features that have a property `'layer'` set to `'example'`.
* When not set, no property will be added to features.
* @property {Array.<string>|undefined} layers Names of the TopoJSON topology's `objects`'s children to read features from.
* If not provided, features will be read from all children.
*/
/**
* @typedef {Object} format_IGCOptions
* @property {IGCZ|string|undefined} altitudeMode Altitude mode. Possible values are `barometric`, `gps`, and `none`. Default
* is `none`.
*/
/**
* @typedef {Object} format_KMLOptions
* @property {boolean|undefined} extractStyles Extract styles from the KML. Default is `true`.
* @property {boolean|undefined} showPointNames Show names as labels for placemarks which contain points. Default is `true`.
* @property {Array.<ol.style.Style>|undefined} defaultStyle Default style. The default default style is the same as Google Earth.
* @property {boolean|undefined} writeStyles Write styles into KML. Default is `true`.
*/
/**
* @typedef {Object} format_GMLOptions
* @property {Object.<string, string>|string|undefined} featureNS Feature namespace. If not defined will be derived from GML. If multiple
* feature types have been configured which come from different feature
* namespaces, this will be an object with the keys being the prefixes used
* in the entries of featureType array. The values of the object will be the
* feature namespaces themselves. So for instance there might be a featureType
* item `topp:states` in the `featureType` array and then there will be a key
* `topp` in the featureNS object with value `http://www.openplans.org/topp`.
* @property {Array.<string>|string|undefined} featureType Feature type(s) to parse. If multiple feature types need to be configured
* which come from different feature namespaces, `featureNS` will be an object
* with the keys being the prefixes used in the entries of featureType array.
* The values of the object will be the feature namespaces themselves.
* So for instance there might be a featureType item `topp:states` and then
* there will be a key named `topp` in the featureNS object with value
* `http://www.openplans.org/topp`.
* @property {string} srsName srsName to use when writing geometries.
* @property {boolean|undefined} surface Write gml:Surface instead of gml:Polygon elements. This also affects the
* elements in multi-part geometries. Default is `false`.
* @property {boolean|undefined} curve Write gml:Curve instead of gml:LineString elements. This also affects the
* elements in multi-part geometries. Default is `false`.
* @property {boolean|undefined} multiCurve Write gml:MultiCurve instead of gml:MultiLineString. Since the latter is
* deprecated in GML 3, the default is `true`.
* @property {boolean|undefined} multiSurface Write gml:multiSurface instead of gml:MultiPolygon. Since the latter is
* deprecated in GML 3, the default is `true`.
* @property {string|undefined} schemaLocation Optional schemaLocation to use when writing out the GML, this will override
* the default provided.
*/
/**
* @typedef {Object} format_GPXOptions
* @property {function(ol.Feature, Node)|undefined} readExtensions Callback function to process `extensions` nodes.
* To prevent memory leaks, this callback function must
* not store any references to the node. Note that the `extensions`
* node is not allowed in GPX 1.0. Moreover, only `extensions`
* nodes from `wpt`, `rte` and `trk` can be processed, as those are
* directly mapped to a feature.
*/
/**
* @typedef {Object} format_WFSOptions
* @property {Object.<string, string>|string|undefined} featureNS The namespace URI used for features.
* @property {Array.<string>|string|undefined} featureType The feature type to parse. Only used for read operations.
* @property {ol.format.GMLBase|undefined} gmlFormat The GML format to use to parse the response. Default is `ol.format.GML3`.
* @property {string|undefined} schemaLocation Optional schemaLocation to use for serialization, this will override the
* default.
*/
/**
* @typedef {Object} format_WFSWriteGetFeatureOptions
* @property {string} featureNS The namespace URI used for features.
* @property {string} featurePrefix The prefix for the feature namespace.
* @property {Array.<string>} featureTypes The feature type names.
* @property {string|undefined} srsName SRS name. No srsName attribute will be set on geometries when this is not
* provided.
* @property {string|undefined} handle Handle.
* @property {string|undefined} outputFormat Output format.
* @property {number|undefined} maxFeatures Maximum number of features to fetch.
* @property {string|undefined} geometryName Geometry name to use in a BBOX filter.
* @property {Array.<string>|undefined} propertyNames Optional list of property names to serialize.
* @property {number|undefined} startIndex Start index to use for WFS paging. This is a WFS 2.0 feature backported to
* WFS 1.1.0 by some Web Feature Services.
* @property {number|undefined} count Number of features to retrieve when paging. This is a WFS 2.0 feature
* backported to WFS 1.1.0 by some Web Feature Services. Please note that some
* Web Feature Services have repurposed `maxfeatures` instead.
* @property {ol.Extent|undefined} bbox Extent to use for the BBOX filter.
* @property {ol.format.filter.Filter|undefined} filter Filter condition. See {@link ol.format.filter} for more information.
* @property {string|undefined} resultType Indicates what response should be returned, E.g. `hits` only includes the
* `numberOfFeatures` attribute in the response and no features.
*/
/**
* @typedef {Object} format_WFSWriteTransactionOptions
* @property {string} featureNS The namespace URI used for features.
* @property {string} featurePrefix The prefix for the feature namespace.
* @property {string} featureType The feature type name.
* @property {string|undefined} srsName SRS name. No srsName attribute will be set on geometries when this is not
* provided.
* @property {string|undefined} handle Handle.
* @property {boolean|undefined} hasZ Must be set to true if the transaction is for a 3D layer. This will allow
* the Z coordinate to be included in the transaction.
* @property {Array.<Object>} nativeElements Native elements. Currently not supported.
* @property {olx.format.GMLOptions|undefined} gmlOptions GML options for the WFS transaction writer.
* @property {string|undefined} version WFS version to use for the transaction. Can be either `1.0.0` or `1.1.0`.
* Default is `1.1.0`.
*/
/**
* @typedef {Object} format_WKTOptions
* @property {boolean|undefined} splitCollection Whether to split GeometryCollections into
* multiple features on reading. Default is `false`.
*/
/**
* @typedef {Object} format_WMSGetFeatureInfoOptions
* @property {Array.<string>|undefined} layers If set, only features of the given layers will be returned by the format
* when read.
*/
/**
* @typedef {Object} interaction_DoubleClickZoomOptions
* @property {number|undefined} duration Animation duration in milliseconds. Default is `250`.
* @property {number|undefined} delta The zoom delta applied on each double click, default is `1`.
*/
/**
* @typedef {Object} interaction_DragAndDropOptions
* @property {Array.<function(new: ol.format.Feature)>|undefined} formatConstructors Format constructors.
* @property {ol.source.Vector|undefined} source Optional vector source where features will be added. If a source is provided
* all existing features will be removed and new features will be added when
* they are dropped on the target. If you want to add features to a vector
* source without removing the existing features (append only), instead of
* providing the source option listen for the "addfeatures" event.
* @property {ol.ProjectionLike} projection Target projection. By default, the map's view's projection is used.
* @property {Element|undefined} target The element that is used as the drop target, default is the viewport element.
*/
/**
* @typedef {Object} interaction_DragBoxOptions
* @property {string|undefined} className CSS class name for styling the box. The default is `ol-dragbox`.
* @property {ol.EventsConditionType|undefined} condition A function that takes an {@link ol.MapBrowserEvent} and returns a boolean
* to indicate whether that event should be handled.
* Default is {@link ol.events.condition.always}.
* @property {number|undefined} minArea The minimum area of the box in pixel, this value is used by the default
* `boxEndCondition` function. Default is `64`.
* @property {ol.DragBoxEndConditionType|undefined} boxEndCondition A function that takes a {@link ol.MapBrowserEvent} and two
* {@link ol.Pixel}s to indicate whether a `boxend` event should be fired.
* Default is `true` if the area of the box is bigger than the `minArea` option.
*/
/**
* @typedef {Object} interaction_DragPanOptions
* @property {ol.EventsConditionType|undefined} condition A function that takes an {@link ol.MapBrowserEvent} and returns a boolean
* to indicate whether that event should be handled.
* Default is {@link ol.events.condition.noModifierKeys}.
* @property {ol.Kinetic|undefined} kinetic Kinetic inertia to apply to the pan.
*/
/**
* @typedef {Object} interaction_DragRotateAndZoomOptions
* @property {ol.EventsConditionType|undefined} condition A function that takes an {@link ol.MapBrowserEvent} and returns a boolean
* to indicate whether that event should be handled.
* Default is {@link ol.events.condition.shiftKeyOnly}.
* @property {number|undefined} duration Animation duration in milliseconds. Default is `400`.
*/
/**
* @typedef {Object} interaction_DragRotateOptions
* @property {ol.EventsConditionType|undefined} condition A function that takes an {@link ol.MapBrowserEvent} and returns a boolean
* to indicate whether that event should be handled.
* Default is {@link ol.events.condition.altShiftKeysOnly}.
* @property {number|undefined} duration Animation duration in milliseconds. Default is `250`.
*/
/**
* @typedef {Object} interaction_DragZoomOptions
* @property {string|undefined} className CSS class name for styling the box. The default is `ol-dragzoom`.
* @property {ol.EventsConditionType|undefined} condition A function that takes an {@link ol.MapBrowserEvent} and returns a boolean
* to indicate whether that event should be handled.
* Default is {@link ol.events.condition.shiftKeyOnly}.
* @property {number|undefined} duration Animation duration in milliseconds. Default is `200`.
* @property {boolean|undefined} out Use interaction for zooming out. Default is `false`.
*/
/**
* @typedef {Object} interaction_DrawOptions
* @property {number|undefined} clickTolerance The maximum distance in pixels between "down" and "up" for a "up" event
* to be considered a "click" event and actually add a point/vertex to the
* geometry being drawn. Default is 6 pixels. That value was chosen for
* the draw interaction to behave correctly on mouse as well as on touch
* devices.
* @property {ol.Collection.<ol.Feature>|undefined} features Destination collection for the drawn features.
* @property {ol.source.Vector|undefined} source Destination source for the drawn features.
* @property {number|undefined} dragVertexDelay Delay in milliseconds after pointerdown before the current vertex can be
* dragged to its exact position. Default is 500 ms.
* @property {number|undefined} snapTolerance Pixel distance for snapping to the drawing finish. Default is `12`.
* @property {ol.geom.GeometryType|string} type Drawing type ('Point', 'LineString', 'Polygon', 'MultiPoint',
* 'MultiLineString', 'MultiPolygon' or 'Circle').
* @property {boolean|undefined} stopClick Stop click, singleclick, and doubleclick events from firing during drawing.
* Default is `false`.
* @property {number|undefined} maxPoints The number of points that can be drawn before a polygon ring or line string
* is finished. The default is no restriction.
* @property {number|undefined} minPoints The number of points that must be drawn before a polygon ring or line string
* can be finished. Default is `3` for polygon rings and `2` for line strings.
* @property {ol.EventsConditionType|undefined} finishCondition A function that takes an {@link ol.MapBrowserEvent} and returns a boolean
* to indicate whether the drawing can be finished.
* @property {ol.style.Style|Array.<ol.style.Style>|ol.StyleFunction|undefined} style Style for sketch features.
* @property {ol.DrawGeometryFunctionType|undefined} geometryFunction Function that is called when a geometry's coordinates are updated.
* @property {string|undefined} geometryName Geometry name to use for features created by the draw interaction.
* @property {ol.EventsConditionType|undefined} condition A function that takes an {@link ol.MapBrowserEvent} and returns a boolean
* to indicate whether that event should be handled.
* By default {@link ol.events.condition.noModifierKeys}, i.e. a click, adds a
* vertex or deactivates freehand drawing.
* @property {boolean|undefined} freehand Operate in freehand mode for lines, polygons, and circles. This makes the
* interaction always operate in freehand mode and takes precedence over any
* `freehandCondition` option.
* @property {ol.EventsConditionType|undefined} freehandCondition Condition that activates freehand drawing for lines and polygons. This
* function takes an {@link ol.MapBrowserEvent} and returns a boolean to
* indicate whether that event should be handled. The default is
* {@link ol.events.condition.shiftKeyOnly}, meaning that the Shift key
* activates freehand drawing.
* @property {boolean|undefined} wrapX Wrap the world horizontally on the sketch overlay. Default is `false`.
*/
/**
* @typedef {Object} interaction_ExtentOptions
* @property {ol.Extent|undefined} extent Initial extent. Defaults to no initial extent
* @property {ol.style.Style|Array.<ol.style.Style>|ol.StyleFunction|undefined} boxStyle Style for the drawn extent box.
* Defaults to ol.style.Style.createDefaultEditing()[ol.geom.GeometryType.POLYGON]
* @property {number|undefined} pixelTolerance Pixel tolerance for considering the pointer close enough to a segment or
* vertex for editing. Default is `10`.
* @property {ol.style.Style|Array.<ol.style.Style>|ol.StyleFunction|undefined} pointerStyle Style for the cursor used to draw the extent.
* Defaults to ol.style.Style.createDefaultEditing()[ol.geom.GeometryType.POINT]
* @property {boolean|undefined} wrapX Wrap the drawn extent across multiple maps in the X direction?
* Only affects visuals, not functionality. Defaults to false.
*/
/**
* @typedef {Object} interaction_TranslateOptions
* @property {ol.Collection.<ol.Feature>|undefined} features Only features contained in this collection will be able to be translated. If
* not specified, all features on the map will be able to be translated.
* @property {undefined|Array.<ol.layer.Layer>|function(ol.layer.Layer): boolean} layers A list of layers from which features should be
* translated. Alternatively, a filter function can be provided. The
* function will be called for each layer in the map and should return
* `true` for layers that you want to be translatable. If the option is
* absent, all visible layers will be considered translatable.
* @property {number|undefined} hitTolerance Hit-detection tolerance. Pixels inside the radius around the given position
* will be checked for features. This only works for the canvas renderer and
* not for WebGL. Default is `0`.
*/
/**
* @typedef {Object} interaction_KeyboardPanOptions
* @property {ol.EventsConditionType|undefined} condition A function that takes an {@link ol.MapBrowserEvent} and returns a boolean
* to indicate whether that event should be handled.
* Default is {@link ol.events.condition.noModifierKeys} and
* {@link ol.events.condition.targetNotEditable}.
* @property {number|undefined} duration Animation duration in milliseconds. Default is `100`.
* @property {number|undefined} pixelDelta Pixel The amount to pan on each key press. Default is `128` pixels.
*/
/**
* @typedef {Object} interaction_KeyboardZoomOptions
* @property {number|undefined} duration Animation duration in milliseconds. Default is `100`.
* @property {ol.EventsConditionType|undefined} condition A function that takes an {@link ol.MapBrowserEvent} and returns a boolean
* to indicate whether that event should be handled.
* Default is {@link ol.events.condition.targetNotEditable}.
* @property {number|undefined} delta The amount to zoom on each key press. Default is `1`.
*/
/**
* @typedef {Object} interaction_ModifyOptions
* @property {ol.EventsConditionType|undefined} condition A function that takes an {@link ol.MapBrowserEvent} and returns a boolean
* to indicate whether that event will be considered to add or move a vertex
* to the sketch.
* Default is {@link ol.events.condition.primaryAction}.
* @property {ol.EventsConditionType|undefined} deleteCondition A function that takes an {@link ol.MapBrowserEvent} and returns a boolean
* to indicate whether that event should be handled.
* By default, {@link ol.events.condition.singleClick} with
* {@link ol.events.condition.altKeyOnly} results in a vertex deletion.
* @property {ol.EventsConditionType|undefined} insertVertexCondition A function that takes an {@link ol.MapBrowserEvent} and returns a boolean
* to indicate whether a new vertex can be added to the sketch features.
* Default is {@link ol.events.condition.always}
* @property {number|undefined} pixelTolerance Pixel tolerance for considering the pointer close enough to a segment or
* vertex for editing. Default is `10`.
* @property {ol.style.Style|Array.<ol.style.Style>|ol.StyleFunction|undefined} style Style used for the features being modified. By default the default edit
* style is used (see {@link ol.style}).
* @property {ol.source.Vector|undefined} source The vector source with features to modify. If a vector source is not
* provided, a feature collection must be provided with the features option.
* @property {ol.Collection.<ol.Feature>|undefined} features The features the interaction works on. If a feature collection is not
* provided, a vector source must be provided with the source option.
* @property {boolean|undefined} wrapX Wrap the world horizontally on the sketch overlay. Default is `false`.
*/
/**
* @typedef {Object} interaction_MouseWheelZoomOptions
* @property {ol.EventsConditionType|undefined} condition A function that takes an {@link ol.MapBrowserEvent} and returns a boolean
* to indicate whether that event should be handled. Default is {@link ol.events.condition.always}.
* @property {number|undefined} duration Animation duration in milliseconds. Default is `250`.
* @property {number|undefined} timeout Mouse wheel timeout duration in milliseconds. Default is `80`.
* @property {boolean|undefined} constrainResolution When using a trackpad or magic mouse, zoom to the closest integer zoom level
* after the scroll gesture ends.
* Default is `false`.
* @property {boolean|undefined} useAnchor Enable zooming using the mouse's location as the anchor. Default is `true`.
* When set to false, zooming in and out will zoom to the center of the screen
* instead of zooming on the mouse's location.
*/
/**
* @typedef {Object} interaction_PinchRotateOptions
* @property {number|undefined} duration The duration of the animation in milliseconds. Default is `250`.
* @property {number|undefined} threshold Minimal angle in radians to start a rotation. Default is `0.3`.
*/
/**
* @typedef {Object} interaction_PinchZoomOptions
* @property {number|undefined} duration Animation duration in milliseconds. Default is `400`.
* @property {boolean|undefined} constrainResolution Zoom to the closest integer zoom level after the pinch gesture ends. Default is `false`.
*/
/**
* @typedef {Object} interaction_PointerOptions
* @property {(function(ol.MapBrowserPointerEvent):boolean|undefined)} handleDownEvent Function handling "down" events. If the function returns `true` then a drag
* sequence is started.
* @property {(function(ol.MapBrowserPointerEvent)|undefined)} handleDragEvent Function handling "drag" events. This function is called on "move" events
* during a drag sequence.
* @property {(function(ol.MapBrowserEvent):boolean|undefined)} handleEvent Method called by the map to notify the interaction that a browser event was
* dispatched to the map. The function may return `false` to prevent the
* propagation of the event to other interactions in the map's interactions
* chain.
* @property {(function(ol.MapBrowserPointerEvent)|undefined)} handleMoveEvent Function handling "move" events. This function is called on "move" events,
* also during a drag sequence (so during a drag sequence both the
* `handleDragEvent` function and this function are called).
* @property {(function(ol.MapBrowserPointerEvent):boolean|undefined)} handleUpEvent Function handling "up" events. If the function returns `false` then the
* current drag sequence is stopped.
*/
/**
* @typedef {Object} interaction_SelectOptions
* @property {ol.EventsConditionType|undefined} addCondition A function that takes an {@link ol.MapBrowserEvent} and returns a boolean
* to indicate whether that event should be handled.
* By default, this is {@link ol.events.condition.never}. Use this if you want
* to use different events for add and remove instead of `toggle`.
* @property {ol.EventsConditionType|undefined} condition A function that takes an {@link ol.MapBrowserEvent} and returns a boolean
* to indicate whether that event should be handled.
* This is the event for the selected features as a whole. By default, this is
* {@link ol.events.condition.singleClick}. Clicking on a feature selects that
* feature and removes any that were in the selection. Clicking outside any
* feature removes all from the selection.
* See `toggle`, `add`, `remove` options for adding/removing extra features to/
* from the selection.
* @property {undefined|Array.<ol.layer.Layer>|function(ol.layer.Layer): boolean} layers A list of layers from which features should be
* selected. Alternatively, a filter function can be provided. The
* function will be called for each layer in the map and should return
* `true` for layers that you want to be selectable. If the option is
* absent, all visible layers will be considered selectable.
* @property {ol.style.Style|Array.<ol.style.Style>|ol.StyleFunction|undefined} style Style for the selected features. By default the default edit style is used
* (see {@link ol.style}).
* @property {ol.EventsConditionType|undefined} removeCondition A function that takes an {@link ol.MapBrowserEvent} and returns a boolean
* to indicate whether that event should be handled.
* By default, this is {@link ol.events.condition.never}. Use this if you want
* to use different events for add and remove instead of `toggle`.
* @property {ol.EventsConditionType|undefined} toggleCondition A function that takes an {@link ol.MapBrowserEvent} and returns a boolean
* to indicate whether that event should be handled.
* This is in addition to the `condition` event. By default,
* {@link ol.events.condition.shiftKeyOnly}, i.e. pressing `shift` as well as
* the `condition` event, adds that feature to the current selection if it is
* not currently selected, and removes it if it is.
* See `add` and `remove` if you want to use different events instead of a
* toggle.
* @property {boolean|undefined} multi A boolean that determines if the default behaviour should select only
* single features or all (overlapping) features at the clicked map
* position. Default is false i.e single select
* @property {ol.Collection.<ol.Feature>|undefined} features Collection where the interaction will place selected features. Optional. If
* not set the interaction will create a collection. In any case the collection
* used by the interaction is returned by
* {@link ol.interaction.Select#getFeatures}.
* @property {ol.SelectFilterFunction|undefined} filter A function that takes an {@link ol.Feature} and an {@link ol.layer.Layer} and
* returns `true` if the feature may be selected or `false` otherwise.
* @property {boolean|undefined} wrapX Wrap the world horizontally on the selection overlay. Default is `true`.
* @property {number|undefined} hitTolerance Hit-detection tolerance. Pixels inside the radius around the given position
* will be checked for features. This only works for the canvas renderer and
* not for WebGL. Default is `0`.
*/
/**
* @typedef {Object} interaction_SnapOptions
* @property {ol.Collection.<ol.Feature>|undefined} features Snap to these features. Either this option or source should be provided.
* @property {boolean|undefined} edge Snap to edges. Default is `true`.
* @property {boolean|undefined} vertex Snap to vertices. Default is `true`.
* @property {number|undefined} pixelTolerance Pixel tolerance for considering the pointer close enough to a segment or
* vertex for snapping. Default is `10` pixels.
* @property {ol.source.Vector|undefined} source Snap to features from this source. Either this option or features should be provided
*/
/**
* @typedef {Object} layer_BaseOptions
* @property {number|undefined} opacity Opacity (0, 1). Default is `1`.
* @property {boolean|undefined} visible Visibility. Default is `true`.
* @property {ol.Extent|undefined} extent The bounding extent for layer rendering. The layer will not be rendered
* outside of this extent.
* @property {number|undefined} zIndex The z-index for layer rendering. At rendering time, the layers will be
* ordered, first by Z-index and then by position. The default Z-index is 0.
* @property {number|undefined} minResolution The minimum resolution (inclusive) at which this layer will be visible.
* @property {number|undefined} maxResolution The maximum resolution (exclusive) below which this layer will be visible.
*/
/**
* @typedef {Object} layer_LayerOptions
* @property {number|undefined} opacity Opacity (0, 1). Default is `1`.
* @property {ol.source.Source|undefined} source Source for this layer. If not provided to the constructor, the source can
* be set by calling {@link ol.layer.Layer#setSource layer.setSource(source)}
* after construction.
* @property {boolean|undefined} visible Visibility. Default is `true` (visible).
* @property {ol.Extent|undefined} extent The bounding extent for layer rendering. The layer will not be rendered
* outside of this extent.
* @property {number|undefined} zIndex The z-index for layer rendering. At rendering time, the layers will be
* ordered, first by Z-index and then by position. The default Z-index is 0.
* @property {number|undefined} minResolution The minimum resolution (inclusive) at which this layer will be visible.
* @property {number|undefined} maxResolution The maximum resolution (exclusive) below which this layer will be visible.
*/
/**
* @typedef {Object} layer_GroupOptions
* @property {number|undefined} opacity Opacity (0, 1). Default is `1`.
* @property {boolean|undefined} visible Visibility. Default is `true`.
* @property {ol.Extent|undefined} extent The bounding extent for layer rendering. The layer will not be rendered
* outside of this extent.
* @property {number|undefined} zIndex The z-index for layer rendering. At rendering time, the layers will be
* ordered, first by Z-index and then by position. The default Z-index is 0.
* @property {number|undefined} minResolution The minimum resolution (inclusive) at which this layer will be visible.
* @property {number|undefined} maxResolution The maximum resolution (exclusive) below which this layer will be visible.
* @property {Array.<ol.layer.Base>|ol.Collection.<ol.layer.Base>|undefined} layers Child layers.
*/
/**
* @typedef {Object} layer_HeatmapOptions
* @property {Array.<string>|undefined} gradient The color gradient of the heatmap, specified as an array of CSS color
* strings. Default is `['#00f', '#0ff', '#0f0', '#ff0', '#f00']`.
* @property {number|undefined} radius Radius size in pixels. Default is `8`.
* @property {number|undefined} blur Blur size in pixels. Default is `15`.
* @property {number|undefined} shadow Shadow size in pixels. Default is `250`.
* @property {string|function(ol.Feature):number|undefined} weight The feature attribute to use for the weight or a function that returns a
* weight from a feature. Weight values should range from 0 to 1 (and values
* outside will be clamped to that range). Default is `weight`.
* @property {ol.Extent|undefined} extent The bounding extent for layer rendering. The layer will not be rendered
* outside of this extent.
* @property {number|undefined} minResolution The minimum resolution (inclusive) at which this layer will be visible.
* @property {number|undefined} maxResolution The maximum resolution (exclusive) below which this layer will be visible.
* @property {number|undefined} opacity Opacity. 0-1. Default is `1`.
* @property {ol.source.Vector} source Source.
* @property {boolean|undefined} visible Visibility. Default is `true` (visible).
* @property {number|undefined} zIndex The z-index for layer rendering. At rendering time, the layers will be
* ordered, first by Z-index and then by position. The default Z-index is 0.
*/
/**
* @typedef {Object} layer_ImageOptions
* @property {number|undefined} opacity Opacity (0, 1). Default is `1`.
* @property {ol.source.Image} source Source for this layer.
* @property {ol.PluggableMap|undefined} map Sets the layer as overlay on a map. The map will not manage this layer in its
* layers collection, and the layer will be rendered on top. This is useful for
* temporary layers. The standard way to add a layer to a map and have it
* managed by the map is to use {@link ol.Map#addLayer}.
* @property {boolean|undefined} visible Visibility. Default is `true` (visible).
* @property {ol.Extent|undefined} extent The bounding extent for layer rendering. The layer will not be rendered
* outside of this extent.
* @property {number|undefined} minResolution The minimum resolution (inclusive) at which this layer will be visible.
* @property {number|undefined} maxResolution The maximum resolution (exclusive) below which this layer will be visible.
* @property {number|undefined} zIndex The z-index for layer rendering. At rendering time, the layers will be
* ordered, first by Z-index and then by position. The default Z-index is 0.
*/
/**
* @typedef {Object} layer_TileOptions
* @property {number|undefined} opacity Opacity (0, 1). Default is `1`.
* @property {number|undefined} preload Preload. Load low-resolution tiles up to `preload` levels. By default
* `preload` is `0`, which means no preloading.
* @property {ol.source.Tile} source Source for this layer.
* @property {ol.PluggableMap|undefined} map Sets the layer as overlay on a map. The map will not manage this layer in its
* layers collection, and the layer will be rendered on top. This is useful for
* temporary layers. The standard way to add a layer to a map and have it
* managed by the map is to use {@link ol.Map#addLayer}.
* @property {boolean|undefined} visible Visibility. Default is `true` (visible).
* @property {ol.Extent|undefined} extent The bounding extent for layer rendering. The layer will not be rendered
* outside of this extent.
* @property {number|undefined} minResolution The minimum resolution (inclusive) at which this layer will be visible.
* @property {number|undefined} maxResolution The maximum resolution (exclusive) below which this layer will be visible.
* @property {boolean|undefined} useInterimTilesOnError Use interim tiles on error. Default is `true`.
* @property {number|undefined} zIndex The z-index for layer rendering. At rendering time, the layers will be
* ordered, first by Z-index and then by position. The default Z-index is 0.
*/
/**
* @typedef {Object} layer_VectorOptions
* @property {ol.layer.VectorRenderType|string|undefined} renderMode Render mode for vector layers:
* * `'image'`: Vector layers are rendered as images. Great performance, but
* point symbols and texts are always rotated with the view and pixels are
* scaled during zoom animations.
* * `'vector'`: Vector layers are rendered as vectors. Most accurate rendering
* even during animations, but slower performance.
* Default is `vector`.
* @property {ol.RenderOrderFunction|null|undefined} renderOrder Render order. Function to be used when sorting features before rendering. By
* default features are drawn in the order that they are created. Use `null` to
* avoid the sort, but get an undefined draw order.
* @property {ol.PluggableMap|undefined} map Sets the layer as overlay on a map. The map will not manage this layer in its
* layers collection, and the layer will be rendered on top. This is useful for
* temporary layers. The standard way to add a layer to a map and have it
* managed by the map is to use {@link ol.Map#addLayer}.
* @property {ol.Extent|undefined} extent The bounding extent for layer rendering. The layer will not be rendered
* outside of this extent.
* @property {number|undefined} minResolution The minimum resolution (inclusive) at which this layer will be visible.
* @property {number|undefined} maxResolution The maximum resolution (exclusive) below which this layer will be visible.
* @property {number|undefined} opacity Opacity. 0-1. Default is `1`.
* @property {number|undefined} renderBuffer The buffer around the viewport extent used by the renderer when getting
* features from the vector source for the rendering or hit-detection.
* Recommended value: the size of the largest symbol, line width or label.
* Default is 100 pixels.
* @property {ol.source.Vector} source Source.
* @property {boolean|undefined} declutter Declutter images and text. Decluttering is applied to all image and text
* styles, and the priority is defined by the z-index of the style. Lower
* z-index means higher priority. Default is `false`.
* @property {ol.style.Style|Array.<ol.style.Style>|ol.StyleFunction|undefined} style Layer style. See {@link ol.style} for default style which will be used if
* this is not defined.
* @property {number|undefined} maxTilesLoading Maximum number tiles to load simultaneously. Default is `16`.
* @property {boolean|undefined} updateWhileAnimating When set to `true`, feature batches will be recreated during animations.
* This means that no vectors will be shown clipped, but the setting will have a
* performance impact for large amounts of vector data. When set to `false`,
* batches will be recreated when no animation is active. Default is `false`.
* @property {boolean|undefined} updateWhileInteracting When set to `true`, feature batches will be recreated during interactions.
* See also `updateWhileAnimating`. Default is `false`.
* @property {boolean|undefined} visible Visibility. Default is `true` (visible).
* @property {number|undefined} zIndex The z-index for layer rendering. At rendering time, the layers will be
* ordered, first by Z-index and then by position. The default Z-index is 0.
*/
/**
* @typedef {Object} layer_VectorTileOptions
* @property {number|undefined} renderBuffer The buffer around the tile extent used by the renderer when getting features
* from the vector tile for the rendering or hit-detection.
* Recommended value: Vector tiles are usually generated with a buffer, so this
* value should match the largest possible buffer of the used tiles. It should
* be at least the size of the largest point symbol or line width.
* Default is 100 pixels.
* @property {ol.layer.VectorTileRenderType|string|undefined} renderMode Render mode for vector tiles:
* * `'image'`: Vector tiles are rendered as images. Great performance, but
* point symbols and texts are always rotated with the view and pixels are
* scaled during zoom animations.
* * `'hybrid'`: Polygon and line elements are rendered as images, so pixels
* are scaled during zoom animations. Point symbols and texts are accurately
* rendered as vectors and can stay upright on rotated views.
* * `'vector'`: Vector tiles are rendered as vectors. Most accurate rendering
* even during animations, but slower performance than the other options.
*
* When `declutter` is set to `true`, `'hybrid'` will be used instead of
* `'image'`. The default is `'hybrid'`.
* @property {ol.RenderOrderFunction|undefined} renderOrder Render order. Function to be used when sorting features before rendering. By
* default features are drawn in the order that they are created.
* @property {ol.PluggableMap|undefined} map Sets the layer as overlay on a map. The map will not manage this layer in its
* layers collection, and the layer will be rendered on top. This is useful for
* temporary layers. The standard way to add a layer to a map and have it
* managed by the map is to use {@link ol.Map#addLayer}.
* @property {ol.Extent|undefined} extent The bounding extent for layer rendering. The layer will not be rendered
* outside of this extent.
* @property {number|undefined} minResolution The minimum resolution (inclusive) at which this layer will be visible.
* @property {number|undefined} maxResolution The maximum resolution (exclusive) below which this layer will be visible.
* @property {number|undefined} opacity Opacity. 0-1. Default is `1`.
* @property {number|undefined} preload Preload. Load low-resolution tiles up to `preload` levels. By default
* `preload` is `0`, which means no preloading.
* @property {ol.source.VectorTile|undefined} source Source.
* @property {boolean|undefined} declutter Declutter images and text. Decluttering is applied to all image and text
* styles, and the priority is defined by the z-index of the style. Lower
* z-index means higher priority. When set to `true`, a `renderMode` of
* `'image'` will be overridden with `'hybrid'`. Default is `false`.
* @property {ol.style.Style|Array.<ol.style.Style>|ol.StyleFunction|undefined} style Layer style. See {@link ol.style} for default style which will be used if
* this is not defined.
* @property {boolean|undefined} updateWhileAnimating When set to `true`, feature batches will be recreated during animations.
* This means that no vectors will be shown clipped, but the setting will have a
* performance impact for large amounts of vector data. When set to `false`,
* batches will be recreated when no animation is active. Default is `false`.
* @property {boolean|undefined} updateWhileInteracting When set to `true`, feature batches will be recreated during interactions.
* See also `updateWhileAnimating`. Default is `false`.
* @property {boolean|undefined} visible Visibility. Default is `true` (visible).
* @property {number|undefined} zIndex The z-index for layer rendering. At rendering time, the layers will be
* ordered, first by Z-index and then by position. The default Z-index is 0.
*/
/**
* @typedef {Object} render_State
* @property {CanvasRenderingContext2D} context Canvas context that the layer is being rendered to.
* @property {number} pixelRatio Pixel ratio used by the layer renderer.
* @property {number} resolution Resolution that the render batch was created and optimized for. This is
* not the view's resolution that is being rendered.
* @property {number} rotation Rotation of the rendered layer in radians.
*/
/**
* @typedef {Object} source_BingMapsOptions
* @property {number|undefined} cacheSize Cache size. Default is `2048`.
* @property {boolean|undefined} hidpi If `true` hidpi tiles will be requested. Default is `false`.
* @property {string|undefined} culture Culture code. Default is `en-us`.
* @property {string} key Bing Maps API key. Get yours at http://www.bingmapsportal.com/.
* @property {string} imagerySet Type of imagery.
* @property {number|undefined} maxZoom Max zoom. Default is what's advertized by the BingMaps service (`21`
* currently).
* @property {number|undefined} reprojectionErrorThreshold Maximum allowed reprojection error (in pixels). Default is `0.5`.
* Higher values can increase reprojection performance, but decrease precision.
* @property {ol.TileLoadFunctionType|undefined} tileLoadFunction Optional function to load a tile given a URL. The default is
* ```js
* function(imageTile, src) {
* imageTile.getImage().src = src;
* };
* ```
* @property {boolean|undefined} wrapX Whether to wrap the world horizontally. Default is `true`.
* @property {number|undefined} transition Duration of the opacity transition for rendering. To disable the opacity
* transition, pass `transition: 0`.
*/
/**
* @typedef {Object} source_ClusterOptions
* @property {ol.AttributionLike|undefined} attributions Attributions.
* @property {number|undefined} distance Minimum distance in pixels between clusters. Default is `20`.
* @property {ol.Extent|undefined} extent Extent.
* @property {undefined|function(ol.Feature):ol.geom.Point} geometryFunction Function that takes an {@link ol.Feature} as argument and returns an
* {@link ol.geom.Point} as cluster calculation point for the feature. When a
* feature should not be considered for clustering, the function should return
* `null`. The default, which works when the underyling source contains point
* features only, is
* ```js
* function(feature) {
* return feature.getGeometry();
* }
* ```
* See {@link ol.geom.Polygon#getInteriorPoint} for a way to get a cluster
* calculation point for polygons.
* @property {ol.format.Feature|undefined} format Format.
* @property {ol.ProjectionLike} projection Projection.
* @property {ol.source.Vector} source Source.
* @property {boolean|undefined} wrapX WrapX. Default is true
*/
/**
* @typedef {Object} source_TileUTFGridOptions
* @property {boolean|undefined} jsonp Use JSONP with callback to load the TileJSON. Useful when the server
* does not support CORS. Default is `false`.
* @property {boolean|undefined} preemptive If `true` the TileUTFGrid source loads the tiles based on their "visibility".
* This improves the speed of response, but increases traffic.
* Note that if set to `false`, you need to pass `true` as `opt_request`
* to the `forDataAtCoordinateAndResolution` method otherwise no data
* will ever be loaded.
* Default is `true`.
* @property {TileJSON|undefined} tileJSON TileJSON configuration for this source. If not provided, `url` must be
* configured.
* @property {string|undefined} url TileJSON endpoint that provides the configuration for this source. Request
* will be made through JSONP. If not provided, `tileJSON` must be configured.
*/
/**
* @typedef {Object} source_TileImageOptions
* @property {ol.AttributionLike|undefined} attributions Attributions.
* @property {number|undefined} cacheSize Cache size. Default is `2048`.
* @property {null|string|undefined} crossOrigin The `crossOrigin` attribute for loaded images. Note that you must provide a
* `crossOrigin` value if you are using the WebGL renderer or if you want to
* access pixel data with the Canvas renderer. See
* {@link https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image}
* for more detail.
* @property {boolean|undefined} opaque Whether the layer is opaque.
* @property {ol.ProjectionLike} projection Projection.
* @property {number|undefined} reprojectionErrorThreshold Maximum allowed reprojection error (in pixels). Default is `0.5`.
* Higher values can increase reprojection performance, but decrease precision.
* @property {ol.source.State|undefined} state Source state.
* @property {function(new: ol.ImageTile, ol.TileCoord, ol.TileState, string, ?string,
ol.TileLoadFunctionType)|undefined}
tileClass Class used to instantiate image tiles. Default is {@link ol.ImageTile}.
* @property {ol.tilegrid.TileGrid|undefined} tileGrid Tile grid.
* @property {ol.TileLoadFunctionType|undefined} tileLoadFunction Optional function to load a tile given a URL. The default is
* ```js
* function(imageTile, src) {
* imageTile.getImage().src = src;
* };
* ```
* @property {number|undefined} tilePixelRatio The pixel ratio used by the tile service. For example, if the tile
* service advertizes 256px by 256px tiles but actually sends 512px
* by 512px images (for retina/hidpi devices) then `tilePixelRatio`
* should be set to `2`. Default is `1`.
* @property {ol.TileUrlFunctionType|undefined} tileUrlFunction Optional function to get tile URL given a tile coordinate and the projection.
* @property {string|undefined} url URL template. Must include `{x}`, `{y}` or `{-y}`, and `{z}` placeholders.
* A `{?-?}` template pattern, for example `subdomain{a-f}.domain.com`, may be
* used instead of defining each one separately in the `urls` option.
* @property {Array.<string>|undefined} urls An array of URL templates.
* @property {boolean|undefined} wrapX Whether to wrap the world horizontally. The default, `undefined`, is to
* request out-of-bounds tiles from the server. When set to `false`, only one
* world will be rendered. When set to `true`, tiles will be requested for one
* world only, but they will be wrapped horizontally to render multiple worlds.
* @property {number|undefined} transition Duration of the opacity transition for rendering. To disable the opacity
* transition, pass `transition: 0`.
*/
/**
* @typedef {Object} source_VectorTileOptions
* @property {ol.AttributionLike|undefined} attributions Attributions.
* @property {number|undefined} cacheSize Cache size. Default is `128`.
* @property {ol.format.Feature|undefined} format Feature format for tiles. Used and required by the default
* `tileLoadFunction`.
* @property {boolean|undefined} overlaps This source may have overlapping geometries. Default is `true`. Setting this
* to `false` (e.g. for sources with polygons that represent administrative
* boundaries or TopoJSON sources) allows the renderer to optimise fill and
* stroke operations.
* @property {ol.ProjectionLike} projection Projection.
* @property {ol.source.State|undefined} state Source state.
* @property {function(new: ol.VectorTile, ol.TileCoord, ol.TileState, string, ol.format.Feature,
ol.TileLoadFunctionType)|undefined}
tileClass Class used to instantiate vector tiles. Default is {@link ol.VectorTile}.
* @property {ol.tilegrid.TileGrid|undefined} tileGrid Tile grid.
* @property {ol.TileLoadFunctionType|undefined} tileLoadFunction Optional function to load a tile given a URL. Could look like this:
* ```js
* function(tile, url) {
* tile.setLoader(function() {
* var data = // ... fetch data
* var format = tile.getFormat();
* tile.setFeatures(format.readFeatures(data, {
* // uncomment the line below for ol.format.MVT only
* extent: tile.getExtent(),
* featureProjection: map.getView().getProjection()
* }));
* };
* });
* ```
* @property {ol.TileUrlFunctionType|undefined} tileUrlFunction Optional function to get tile URL given a tile coordinate and the projection.
* @property {string|undefined} url URL template. Must include `{x}`, `{y}` or `{-y}`, and `{z}` placeholders.
* A `{?-?}` template pattern, for example `subdomain{a-f}.domain.com`, may be
* used instead of defining each one separately in the `urls` option.
* @property {Array.<string>|undefined} urls An array of URL templates.
* @property {boolean|undefined} wrapX Whether to wrap the world horizontally. When set to `false`, only one world
* will be rendered. When set to `true`, tiles will be wrapped horizontally to
* render multiple worlds. Default is `true`.
* @property {number|undefined} transition Duration of the opacity transition for rendering. To disable the opacity
* transition, pass `transition: 0`.
*/
/**
* @typedef {Object} source_ImageMapGuideOptions
* @property {string|undefined} url The mapagent url.
* @property {number|undefined} displayDpi The display resolution. Default is `96`.
* @property {number|undefined} metersPerUnit The meters-per-unit value. Default is `1`.
* @property {boolean|undefined} hidpi Use the `ol.Map#pixelRatio` value when requesting the image from the remote
* server. Default is `true`.
* @property {boolean|undefined} useOverlay If `true`, will use `GETDYNAMICMAPOVERLAYIMAGE`.
* @property {ol.ProjectionLike} projection Projection.
* @property {number|undefined} ratio Ratio. `1` means image requests are the size of the map viewport, `2` means
* twice the width and height of the map viewport, and so on. Must be `1` or
* higher. Default is `1`.
* @property {Array.<number>|undefined} resolutions Resolutions. If specified, requests will be made for these resolutions only.
* @property {ol.ImageLoadFunctionType|undefined} imageLoadFunction Optional function to load an image given a URL.
* @property {Object|undefined} params Additional parameters.
*/
/**
* @typedef {Object} source_MapQuestOptions
* @property {number|undefined} cacheSize Cache size. Default is `2048`.
* @property {string} layer Layer. Possible values are `osm`, `sat`, and `hyb`.
* @property {number|undefined} reprojectionErrorThreshold Maximum allowed reprojection error (in pixels). Default is `0.5`.
* Higher values can increase reprojection performance, but decrease precision.
* @property {ol.TileLoadFunctionType|undefined} tileLoadFunction Optional function to load a tile given a URL. The default is
* ```js
* function(imageTile, src) {
* imageTile.getImage().src = src;
* };
* ```
* @property {string|undefined} url URL template. Must include `{x}`, `{y}` or `{-y}`, and `{z}` placeholders.
*/
/**
* @typedef {Object} source_TileDebugOptions
* @property {ol.ProjectionLike} projection Projection.
* @property {ol.tilegrid.TileGrid|undefined} tileGrid Tile grid.
* @property {boolean|undefined} wrapX Whether to wrap the world horizontally. Default is `true`.
*/
/**
* @typedef {Object} source_OSMOptions
* @property {ol.AttributionLike|undefined} attributions Attributions.
* @property {number|undefined} cacheSize Cache size. Default is `2048`.
* @property {null|string|undefined} crossOrigin The `crossOrigin` attribute for loaded images. Note that you must provide a
* `crossOrigin` value if you are using the WebGL renderer or if you want to
* access pixel data with the Canvas renderer. See
* {@link https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image}
* for more detail.
*
* Default is `anonymous`.
* @property {number|undefined} maxZoom Max zoom. Default is `19`.
* @property {boolean|undefined} opaque Whether the layer is opaque. Default is `true`.
* @property {number|undefined} reprojectionErrorThreshold Maximum allowed reprojection error (in pixels). Default is `0.5`.
* Higher values can increase reprojection performance, but decrease precision.
* @property {ol.TileLoadFunctionType|undefined} tileLoadFunction Optional function to load a tile given a URL. The default is
* ```js
* function(imageTile, src) {
* imageTile.getImage().src = src;
* };
* ```
* @property {string|undefined} url URL template. Must include `{x}`, `{y}` or `{-y}`, and `{z}` placeholders.
* Default is `https://{a-c}.tile.openstreetmap.org/{z}/{x}/{y}.png`.
* @property {boolean|undefined} wrapX Whether to wrap the world horizontally. Default is `true`.
*/
/**
* @typedef {Object} source_ImageArcGISRestOptions
* @property {ol.AttributionLike|undefined} attributions Attributions.
* @property {null|string|undefined} crossOrigin The `crossOrigin` attribute for loaded images. Note that you must provide a
* `crossOrigin` value if you are using the WebGL renderer or if you want to
* access pixel data with the Canvas renderer. See
* {@link https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image}
* for more detail.
* @property {boolean|undefined} hidpi Use the `ol.Map#pixelRatio` value when requesting the image from the remote
* server. Default is `true`.
* @property {ol.ImageLoadFunctionType|undefined} imageLoadFunction Optional function to load an image given a URL.
* @property {Object.<string,*>|undefined} params ArcGIS Rest parameters. This field is optional. Service defaults will be
* used for any fields not specified. `FORMAT` is `PNG32` by default. `F` is `IMAGE` by
* default. `TRANSPARENT` is `true` by default. `BBOX, `SIZE`, `BBOXSR`,
* and `IMAGESR` will be set dynamically. Set `LAYERS` to
* override the default service layer visibility. See
* {@link http://resources.arcgis.com/en/help/arcgis-rest-api/index.html#/Export_Map/02r3000000v7000000/}
* for further reference.
* @property {ol.ProjectionLike} projection Projection.
* @property {number|undefined} ratio Ratio. `1` means image requests are the size of the map viewport, `2` means
* twice the size of the map viewport, and so on. Default is `1.5`.
* @property {Array.<number>|undefined} resolutions Resolutions. If specified, requests will be made for these resolutions only.
* @property {string|undefined} url ArcGIS Rest service URL for a Map Service or Image Service. The
* url should include /MapServer or /ImageServer.
*/
/**
* @typedef {Object} source_ImageCanvasOptions
* @property {ol.AttributionLike|undefined} attributions Attributions.
* @property {ol.CanvasFunctionType} canvasFunction Canvas function. The function returning the canvas element used by the source
* as an image. The arguments passed to the function are: `{ol.Extent}` the
* image extent, `{number}` the image resolution, `{number}` the device pixel
* ratio, `{ol.Size}` the image size, and `{ol.proj.Projection}` the image
* projection. The canvas returned by this function is cached by the source. If
* the value returned by the function is later changed then
* `dispatchChangeEvent` should be called on the source for the source to
* invalidate the current cached image.
* @property {ol.ProjectionLike} projection Projection.
* @property {number|undefined} ratio Ratio. 1 means canvases are the size of the map viewport, 2 means twice the
* width and height of the map viewport, and so on. Must be `1` or higher.
* Default is `1.5`.
* @property {Array.<number>|undefined} resolutions Resolutions. If specified, new canvases will be created for these resolutions
* only.
* @property {ol.source.State|undefined} state Source state.
*/
/**
* @typedef {Object} source_RasterOptions
* @property {Array.<ol.source.Source>} sources Input sources.
* @property {ol.RasterOperation|undefined} operation Raster operation. The operation will be called with data from input sources
* and the output will be assigned to the raster source.
* @property {Object|undefined} lib Functions that will be made available to operations run in a worker.
* @property {number|undefined} threads By default, operations will be run in a single worker thread. To avoid using
* workers altogether, set `threads: 0`. For pixel operations, operations can
* be run in multiple worker threads. Note that there is additional overhead in
* transferring data to multiple workers, and that depending on the user's
* system, it may not be possible to parallelize the work.
* @property {ol.source.RasterOperationType|undefined} operationType Operation type. Supported values are `'pixel'` and `'image'`. By default,
* `'pixel'` operations are assumed, and operations will be called with an
* array of pixels from input sources. If set to `'image'`, operations will
* be called with an array of ImageData objects from input sources.
*/
/**
* @typedef {Object} source_ImageWMSOptions
* @property {ol.AttributionLike|undefined} attributions Attributions.
* @property {null|string|undefined} crossOrigin The `crossOrigin` attribute for loaded images. Note that you must provide a
* `crossOrigin` value if you are using the WebGL renderer or if you want to
* access pixel data with the Canvas renderer. See
* {@link https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image}
* for more detail.
* @property {boolean|undefined} hidpi Use the `ol.Map#pixelRatio` value when requesting the image from the remote
* server. Default is `true`.
* @property {ol.source.WMSServerType|string|undefined} serverType The type of the remote WMS server: `mapserver`, `geoserver` or `qgis`. Only
* needed if `hidpi` is `true`. Default is `undefined`.
* @property {ol.ImageLoadFunctionType|undefined} imageLoadFunction Optional function to load an image given a URL.
* @property {Object.<string,*>} params WMS request parameters. At least a `LAYERS` param is required. `STYLES` is
* `''` by default. `VERSION` is `1.3.0` by default. `WIDTH`, `HEIGHT`, `BBOX`
* and `CRS` (`SRS` for WMS version < 1.3.0) will be set dynamically.
* @property {ol.ProjectionLike} projection Projection.
* @property {number|undefined} ratio Ratio. `1` means image requests are the size of the map viewport, `2` means
* twice the width and height of the map viewport, and so on. Must be `1` or
* higher. Default is `1.5`.
* @property {Array.<number>|undefined} resolutions Resolutions. If specified, requests will be made for these resolutions only.
* @property {string|undefined} url WMS service URL.
*/
/**
* @typedef {Object} source_StamenOptions
* @property {number|undefined} cacheSize Cache size. Default is `2048`.
* @property {string} layer Layer.
* @property {number|undefined} minZoom Minimum zoom.
* @property {number|undefined} maxZoom Maximum zoom.
* @property {boolean|undefined} opaque Whether the layer is opaque.
* @property {number|undefined} reprojectionErrorThreshold Maximum allowed reprojection error (in pixels). Default is `0.5`.
* Higher values can increase reprojection performance, but decrease precision.
* @property {ol.TileLoadFunctionType|undefined} tileLoadFunction Optional function to load a tile given a URL. The default is
* ```js
* function(imageTile, src) {
* imageTile.getImage().src = src;
* };
* ```
* @property {string|undefined} url URL template. Must include `{x}`, `{y}` or `{-y}`, and `{z}` placeholders.
* @property {boolean|undefined} wrapX Whether to wrap the world horizontally. Default is `true`.
*/
/**
* @typedef {Object} source_ImageStaticOptions
* @property {ol.AttributionLike|undefined} attributions Attributions.
* @property {null|string|undefined} crossOrigin The `crossOrigin` attribute for loaded images. Note that you must provide a
* `crossOrigin` value if you are using the WebGL renderer or if you want to
* access pixel data with the Canvas renderer. See
* {@link https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image}
* for more detail.
* @property {ol.Extent} imageExtent Extent of the image in map coordinates. This is the [left, bottom, right,
* top] map coordinates of your image.
* @property {ol.ImageLoadFunctionType|undefined} imageLoadFunction Optional function to load an image given a URL.
* @property {ol.ProjectionLike} projection Projection.
* @property {ol.Size|undefined} imageSize Size of the image in pixels. Usually the image size is auto-detected, so this
* only needs to be set if auto-detection fails for some reason.
* @property {string} url Image URL.
*/
/**
* @typedef {Object} source_TileArcGISRestOptions
* @property {ol.AttributionLike|undefined} attributions Attributions.
* @property {number|undefined} cacheSize Cache size. Default is `2048`.
* @property {null|string|undefined} crossOrigin The `crossOrigin` attribute for loaded images. Note that you must provide a
* `crossOrigin` value if you are using the WebGL renderer or if you want to
* access pixel data with the Canvas renderer. See
* {@link https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image}
* for more detail.
* @property {Object.<string,*>|undefined} params ArcGIS Rest parameters. This field is optional. Service defaults will be
* used for any fields not specified. `FORMAT` is `PNG32` by default. `F` is `IMAGE` by
* default. `TRANSPARENT` is `true` by default. `BBOX, `SIZE`, `BBOXSR`,
* and `IMAGESR` will be set dynamically. Set `LAYERS` to
* override the default service layer visibility. See
* {@link http://resources.arcgis.com/en/help/arcgis-rest-api/index.html#/Export_Map/02r3000000v7000000/}
* for further reference.
* @property {ol.tilegrid.TileGrid|undefined} tileGrid Tile grid. Base this on the resolutions, tilesize and extent supported by the
* server.
* If this is not defined, a default grid will be used: if there is a projection
* extent, the grid will be based on that; if not, a grid based on a global
* extent with origin at 0,0 will be used.
* @property {ol.ProjectionLike} projection Projection.
* @property {number|undefined} reprojectionErrorThreshold Maximum allowed reprojection error (in pixels). Default is `0.5`.
* Higher values can increase reprojection performance, but decrease precision.
* @property {ol.TileLoadFunctionType|undefined} tileLoadFunction Optional function to load a tile given a URL. The default is
* ```js
* function(imageTile, src) {
* imageTile.getImage().src = src;
* };
* ```
* @property {string|undefined} url ArcGIS Rest service URL for a Map Service or Image Service. The
* url should include /MapServer or /ImageServer.
* @property {boolean|undefined} wrapX Whether to wrap the world horizontally. Default is `true`.
* @property {number|undefined} transition Duration of the opacity transition for rendering. To disable the opacity
* transition, pass `transition: 0`.
* @property {Array.<string>|undefined} urls ArcGIS Rest service urls. Use this instead of `url` when the ArcGIS Service supports multiple
* urls for export requests.
*/
/**
* @typedef {Object} source_TileJSONOptions
* @property {ol.AttributionLike|undefined} attributions Optional attributions for the source. If provided, these will be used
* instead of any attribution data advertised by the server. If not provided,
* any attributions advertised by the server will be used.
* @property {number|undefined} cacheSize Cache size. Default is `2048`.
* @property {null|string|undefined} crossOrigin The `crossOrigin` attribute for loaded images. Note that you must provide a
* `crossOrigin` value if you are using the WebGL renderer or if you want to
* access pixel data with the Canvas renderer. See
* {@link https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image}
* for more detail.
* @property {boolean|undefined} jsonp Use JSONP with callback to load the TileJSON. Useful when the server
* does not support CORS. Default is `false`.
* @property {number|undefined} reprojectionErrorThreshold Maximum allowed reprojection error (in pixels). Default is `0.5`.
* Higher values can increase reprojection performance, but decrease precision.
* @property {TileJSON|undefined} tileJSON TileJSON configuration for this source. If not provided, `url` must be
* configured.
* @property {ol.TileLoadFunctionType|undefined} tileLoadFunction Optional function to load a tile given a URL. The default is
* ```js
* function(imageTile, src) {
* imageTile.getImage().src = src;
* };
* ```
* @property {string|undefined} url URL to the TileJSON file. If not provided, `tileJSON` must be configured.
* @property {boolean|undefined} wrapX Whether to wrap the world horizontally. Default is `true`.
* @property {number|undefined} transition Duration of the opacity transition for rendering. To disable the opacity
* transition, pass `transition: 0`.
*/
/**
* @typedef {Object} source_TileWMSOptions
* @property {ol.AttributionLike|undefined} attributions Attributions.
* @property {number|undefined} cacheSize Cache size. Default is `2048`.
* @property {Object.<string,*>} params WMS request parameters. At least a `LAYERS` param is required. `STYLES` is
* `''` by default. `VERSION` is `1.3.0` by default. `WIDTH`, `HEIGHT`, `BBOX`
* and `CRS` (`SRS` for WMS version < 1.3.0) will be set dynamically.
* @property {null|string|undefined} crossOrigin The `crossOrigin` attribute for loaded images. Note that you must provide a
* `crossOrigin` value if you are using the WebGL renderer or if you want to
* access pixel data with the Canvas renderer. See
* {@link https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image}
* for more detail.
* @property {number|undefined} gutter The size in pixels of the gutter around image tiles to ignore. By setting
* this property to a non-zero value, images will be requested that are wider
* and taller than the tile size by a value of `2 x gutter`. Defaults to zero.
* Using a non-zero value allows artifacts of rendering at tile edges to be
* ignored. If you control the WMS service it is recommended to address
* "artifacts at tile edges" issues by properly configuring the WMS service. For
* example, MapServer has a `tile_map_edge_buffer` configuration parameter for
* this. See http://mapserver.org/output/tile_mode.html.
* @property {boolean|undefined} hidpi Use the `ol.Map#pixelRatio` value when requesting the image from the remote
* server. Default is `true`.
* @property {function(new: ol.ImageTile, ol.TileCoord, ol.TileState, string, ?string,
ol.TileLoadFunctionType)|undefined}
tileClass Class used to instantiate image tiles. Default is {@link ol.ImageTile}.
* @property {ol.tilegrid.TileGrid|undefined} tileGrid Tile grid. Base this on the resolutions, tilesize and extent supported by the
* server.
* If this is not defined, a default grid will be used: if there is a projection
* extent, the grid will be based on that; if not, a grid based on a global
* extent with origin at 0,0 will be used.
* @property {ol.ProjectionLike} projection Projection.
* @property {number|undefined} reprojectionErrorThreshold Maximum allowed reprojection error (in pixels). Default is `0.5`.
* Higher values can increase reprojection performance, but decrease precision.
* @property {ol.source.WMSServerType|string|undefined} serverType The type of the remote WMS server. Currently only used when `hidpi` is
* `true`. Default is `undefined`.
* @property {ol.TileLoadFunctionType|undefined} tileLoadFunction Optional function to load a tile given a URL. The default is
* ```js
* function(imageTile, src) {
* imageTile.getImage().src = src;
* };
* ```
* @property {string|undefined} url WMS service URL.
* @property {Array.<string>|undefined} urls WMS service urls. Use this instead of `url` when the WMS supports multiple
* urls for GetMap requests.
* @property {boolean|undefined} wrapX Whether to wrap the world horizontally. When set to `false`, only one world
* will be rendered. When `true`, tiles will be requested for one world only,
* but they will be wrapped horizontally to render multiple worlds. The default
* is `true`.
* @property {number|undefined} transition Duration of the opacity transition for rendering. To disable the opacity
* transition, pass `transition: 0`.
*/
/**
* @typedef {Object} source_VectorOptions
* @property {ol.AttributionLike|undefined} attributions Attributions.
* @property {Array.<ol.Feature>|ol.Collection.<ol.Feature>|undefined} features Features. If provided as {@link ol.Collection}, the features in the source
* and the collection will stay in sync.
* @property {ol.format.Feature|undefined} format The feature format used by the XHR feature loader when `url` is set.
* Required if `url` is set, otherwise ignored. Default is `undefined`.
* @property {ol.FeatureLoader|undefined} loader The loader function used to load features, from a remote source for example.
* If this is not set and `url` is set, the source will create and use an XHR
* feature loader.
*
* Example:
*
* ```js
* var vectorSource = new ol.source.Vector({
* format: new ol.format.GeoJSON(),
* loader: function(extent, resolution, projection) {
* var proj = projection.getCode();
* var url = 'https://ahocevar.com/geoserver/wfs?service=WFS&' +
* 'version=1.1.0&request=GetFeature&typename=osm:water_areas&' +
* 'outputFormat=application/json&srsname=' + proj + '&' +
* 'bbox=' + extent.join(',') + ',' + proj;
* var xhr = new XMLHttpRequest();
* xhr.open('GET', url);
* var onError = function() {
* vectorSource.removeLoadedExtent(extent);
* }
* xhr.onerror = onError;
* xhr.onload = function() {
* if (xhr.status == 200) {
* vectorSource.addFeatures(
* vectorSource.getFormat().readFeatures(xhr.responseText));
* } else {
* onError();
* }
* }
* xhr.send();
* },
* strategy: ol.loadingstrategy.bbox
* });
* ```
* @property {boolean|undefined} overlaps This source may have overlapping geometries. Default is `true`. Setting this
* to `false` (e.g. for sources with polygons that represent administrative
* boundaries or TopoJSON sources) allows the renderer to optimise fill and
* stroke operations.
* @property {ol.LoadingStrategy|undefined} strategy The loading strategy to use. By default an {@link ol.loadingstrategy.all}
* strategy is used, a one-off strategy which loads all features at once.
* @property {string|ol.FeatureUrlFunction|undefined} url Setting this option instructs the source to load features using an XHR loader
* (see {@link ol.featureloader.xhr}). Use a `string` and an
* {@link ol.loadingstrategy.all} for a one-off download of all features from
* the given URL. Use a {@link ol.FeatureUrlFunction} to generate the url with
* other loading strategies.
* Requires `format` to be set as well.
* When default XHR feature loader is provided, the features will
* be transformed from the data projection to the view projection
* during parsing. If your remote data source does not advertise its projection
* properly, this transformation will be incorrect. For some formats, the
* default projection (usually EPSG:4326) can be overridden by setting the
* defaultDataProjection constructor option on the format.
* Note that if a source contains non-feature data, such as a GeoJSON geometry
* or a KML NetworkLink, these will be ignored. Use a custom loader to load these.
* @property {boolean|undefined} useSpatialIndex By default, an RTree is used as spatial index. When features are removed and
* added frequently, and the total number of features is low, setting this to
* `false` may improve performance.
*
* Note that
* {@link ol.source.Vector#getFeaturesInExtent},
* {@link ol.source.Vector#getClosestFeatureToCoordinate} and
* {@link ol.source.Vector#getExtent} cannot be used when `useSpatialIndex` is
* set to `false`, and {@link ol.source.Vector#forEachFeatureInExtent} will loop
* through all features.
*
* When set to `false`, the features will be maintained in an
* {@link ol.Collection}, which can be retrieved through
* {@link ol.source.Vector#getFeaturesCollection}.
*
* The default is `true`.
* @property {boolean|undefined} wrapX Wrap the world horizontally. Default is `true`. For vector editing across the
* -180° and 180° meridians to work properly, this should be set to `false`. The
* resulting geometry coordinates will then exceed the world bounds.
*/
/**
* @typedef {Object} source_WMTSOptions
* @property {ol.AttributionLike|undefined} attributions Attributions.
* @property {number|undefined} cacheSize Cache size. Default is `2048`.
* @property {string|null|undefined} crossOrigin The `crossOrigin` attribute for loaded images. Note that you must provide a
* `crossOrigin` value if you are using the WebGL renderer or if you want to
* access pixel data with the Canvas renderer. See
* {@link https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image}
* for more detail.
* @property {ol.tilegrid.WMTS} tileGrid Tile grid.
* @property {ol.ProjectionLike} projection Projection.
* @property {number|undefined} reprojectionErrorThreshold Maximum allowed reprojection error (in pixels). Default is `0.5`.
* Higher values can increase reprojection performance, but decrease precision.
* @property {ol.source.WMTSRequestEncoding|string|undefined} requestEncoding Request encoding. Default is `KVP`.
* @property {string} layer Layer name as advertised in the WMTS capabilities.
* @property {string} style Style name as advertised in the WMTS capabilities.
* @property {function(new: ol.ImageTile, ol.TileCoord, ol.TileState, string, ?string,
ol.TileLoadFunctionType)|undefined}
tileClass Class used to instantiate image tiles. Default is {@link ol.ImageTile}.
* @property {number|undefined} tilePixelRatio The pixel ratio used by the tile service. For example, if the tile
* service advertizes 256px by 256px tiles but actually sends 512px
* by 512px images (for retina/hidpi devices) then `tilePixelRatio`
* should be set to `2`. Default is `1`.
* @property {string|undefined} version WMTS version. Default is `1.0.0`.
* @property {string|undefined} format Image format. Default is `image/jpeg`.
* @property {string} matrixSet Matrix set.
* @property {!Object|undefined} dimensions Additional "dimensions" for tile requests. This is an object with properties
* named like the advertised WMTS dimensions.
* @property {string|undefined} url A URL for the service. For the RESTful request encoding, this is a URL
* template. For KVP encoding, it is normal URL. A `{?-?}` template pattern,
* for example `subdomain{a-f}.domain.com`, may be used instead of defining
* each one separately in the `urls` option.
* @property {ol.TileLoadFunctionType|undefined} tileLoadFunction Optional function to load a tile given a URL. The default is
* ```js
* function(imageTile, src) {
* imageTile.getImage().src = src;
* };
* ```
* @property {Array.<string>|undefined} urls An array of URLs. Requests will be distributed among the URLs in this array.
* @property {boolean|undefined} wrapX Whether to wrap the world horizontally. Default is `false`.
* @property {number|undefined} transition Duration of the opacity transition for rendering. To disable the opacity
* transition, pass `transition: 0`.
*/
/**
* @typedef {Object} source_XYZOptions
* @property {ol.AttributionLike|undefined} attributions Attributions.
* @property {number|undefined} cacheSize Cache size. Default is `2048`.
* @property {null|string|undefined} crossOrigin The `crossOrigin` attribute for loaded images. Note that you must provide a
* `crossOrigin` value if you are using the WebGL renderer or if you want to
* access pixel data with the Canvas renderer. See
* {@link https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image}
* for more detail.
* @property {boolean|undefined} opaque Whether the layer is opaque.
* @property {ol.ProjectionLike} projection Projection. Default is `EPSG:3857`.
* @property {number|undefined} reprojectionErrorThreshold Maximum allowed reprojection error (in pixels). Default is `0.5`.
* Higher values can increase reprojection performance, but decrease precision.
* @property {number|undefined} maxZoom Optional max zoom level. Default is `18`.
* @property {number|undefined} minZoom Optional min zoom level. Default is `0`.
* @property {ol.tilegrid.TileGrid|undefined} tileGrid Tile grid.
* @property {ol.TileLoadFunctionType|undefined} tileLoadFunction Optional function to load a tile given a URL. The default is
* ```js
* function(imageTile, src) {
* imageTile.getImage().src = src;
* };
* ```
* @property {number|undefined} tilePixelRatio The pixel ratio used by the tile service. For example, if the tile
* service advertizes 256px by 256px tiles but actually sends 512px
* by 512px images (for retina/hidpi devices) then `tilePixelRatio`
* should be set to `2`. Default is `1`.
* @property {number|ol.Size|undefined} tileSize The tile size used by the tile service. Default is `[256, 256]` pixels.
* @property {ol.TileUrlFunctionType|undefined} tileUrlFunction Optional function to get tile URL given a tile coordinate and the projection.
* Required if url or urls are not provided.
* @property {string|undefined} url URL template. Must include `{x}`, `{y}` or `{-y}`, and `{z}` placeholders.
* A `{?-?}` template pattern, for example `subdomain{a-f}.domain.com`, may be
* used instead of defining each one separately in the `urls` option.
* @property {Array.<string>|undefined} urls An array of URL templates.
* @property {boolean|undefined} wrapX Whether to wrap the world horizontally. Default is `true`.
* @property {number|undefined} transition Duration of the opacity transition for rendering. To disable the opacity
* transition, pass `transition: 0`.
*/
/**
* @typedef {Object} source_CartoDBOptions
* @property {ol.AttributionLike|undefined} attributions Attributions.
* @property {number|undefined} cacheSize Cache size. Default is `2048`.
* @property {null|string|undefined} crossOrigin The `crossOrigin` attribute for loaded images. Note that you must provide a
* `crossOrigin` value if you are using the WebGL renderer or if you want to
* access pixel data with the Canvas renderer. See
* {@link https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image}
* for more detail.
* @property {ol.ProjectionLike} projection Projection. Default is `EPSG:3857`.
* @property {number|undefined} maxZoom Optional max zoom level. Default is `18`.
* @property {number|undefined} minZoom Minimum zoom.
* @property {boolean|undefined} wrapX Whether to wrap the world horizontally. Default is `true`.
* @property {Object|undefined} config If using anonymous maps, the CartoDB config to use. See
* {@link http://docs.cartodb.com/cartodb-platform/maps-api/anonymous-maps/}
* for more detail.
* If using named maps, a key-value lookup with the template parameters.
* See {@link http://docs.cartodb.com/cartodb-platform/maps-api/named-maps/}
* for more detail.
* @property {string|undefined} map If using named maps, this will be the name of the template to load.
* See {@link http://docs.cartodb.com/cartodb-platform/maps-api/named-maps/}
* for more detail.
* @property {string} account CartoDB account name
*/
/**
* @typedef {Object} source_ZoomifyOptions
* @property {ol.AttributionLike|undefined} attributions Attributions.
* @property {number|undefined} cacheSize Cache size. Default is `2048`.
* @property {null|string|undefined} crossOrigin The `crossOrigin` attribute for loaded images. Note that you must provide a
* `crossOrigin` value if you are using the WebGL renderer or if you want to
* access pixel data with the Canvas renderer. See
* {@link https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image}
* for more detail.
* @property {ol.ProjectionLike|undefined} projection Projection.
* @property {number|undefined} reprojectionErrorThreshold Maximum allowed reprojection error (in pixels). Default is `0.5`.
* Higher values can increase reprojection performance, but decrease precision.
* @property {!string} url URL template or base URL of the Zoomify service. A base URL is the fixed part
* of the URL, excluding the tile group, z, x, and y folder structure, e.g.
* `http://my.zoomify.info/IMAGE.TIF/`. A URL template must include
* `{TileGroup}`, `{x}`, `{y}`, and `{z}` placeholders, e.g.
* `http://my.zoomify.info/IMAGE.TIF/{TileGroup}/{z}-{x}-{y}.jpg`.
* Internet Imaging Protocol (IIP) with JTL extension can be also used with
* `{tileIndex}` and `{z}` placeholders, e.g.
* `http://my.zoomify.info?FIF=IMAGE.TIF&JTL={z},{tileIndex}`.
* A `{?-?}` template pattern, for example `subdomain{a-f}.domain.com`, may be
* used instead of defining each one separately in the `urls` option.
* @property {string|undefined} tierSizeCalculation Tier size calculation method: `default` or `truncated`.
* @property {ol.Size} size Size of the image.
* @property {ol.Extent|undefined} extent Extent for the TileGrid that is created. Default sets the TileGrid in the
* fourth quadrant, meaning extent is `[0, -height, width, 0]`. To change the
* extent to the first quadrant (the default for OpenLayers 2) set the extent
* as `[0, 0, width, height]`.
* @property {number|undefined} transition Duration of the opacity transition for rendering. To disable the opacity
* transition, pass `transition: 0`.
* @property {number|undefined} tileSize Tile size. Same tile size is used for all zoom levels. Default value is
* `256`.
*/
/**
* @typedef {Object} style_CircleOptions
* @property {ol.style.Fill|undefined} fill Fill style.
* @property {number} radius Circle radius.
* @property {boolean|undefined} snapToPixel If `true` integral numbers of pixels are used as the X and Y pixel
* coordinate when drawing the circle in the output canvas. If `false`
* fractional numbers may be used. Using `true` allows for "sharp"
* rendering (no blur), while using `false` allows for "accurate"
* rendering. Note that accuracy is important if the circle's
* position is animated. Without it, the circle may jitter noticeably.
* Default value is `true`.
* @property {ol.style.Stroke|undefined} stroke Stroke style.
* @property {ol.style.AtlasManager|undefined} atlasManager The atlas manager to use for this circle. When using WebGL it is
* recommended to use an atlas manager to avoid texture switching.
* If an atlas manager is given, the circle is added to an atlas.
* By default no atlas manager is used.
*/
/**
* @typedef {Object} style_FillOptions
* @property {ol.Color|ol.ColorLike|undefined} color A color, gradient or pattern. See {@link ol.color}
* and {@link ol.colorlike} for possible formats. Default null;
* if null, the Canvas/renderer default black will be used.
*/
/**
* @typedef {Object} style_IconOptions
* @property {Array.<number>|undefined} anchor Anchor. Default value is `[0.5, 0.5]` (icon center).
* @property {ol.style.IconOrigin|undefined} anchorOrigin Origin of the anchor: `bottom-left`, `bottom-right`, `top-left` or
* `top-right`. Default is `top-left`.
* @property {ol.style.IconAnchorUnits|undefined} anchorXUnits Units in which the anchor x value is specified. A value of `'fraction'`
* indicates the x value is a fraction of the icon. A value of `'pixels'`
* indicates the x value in pixels. Default is `'fraction'`.
* @property {ol.style.IconAnchorUnits|undefined} anchorYUnits Units in which the anchor y value is specified. A value of `'fraction'`
* indicates the y value is a fraction of the icon. A value of `'pixels'`
* indicates the y value in pixels. Default is `'fraction'`.
* @property {ol.Color|string|undefined} color Color to tint the icon. If not specified, the icon will be left as is.
* @property {null|string|undefined} crossOrigin The `crossOrigin` attribute for loaded images. Note that you must provide a
* `crossOrigin` value if you are using the WebGL renderer or if you want to
* access pixel data with the Canvas renderer. See
* {@link https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image}
* for more detail.
* @property {Image|HTMLCanvasElement|undefined} img Image object for the icon. If the `src` option is not provided then the
* provided image must already be loaded. And in that case, it is required
* to provide the size of the image, with the `imgSize` option.
* @property {Array.<number>|undefined} offset Offset, which, together with the size and the offset origin,
* define the sub-rectangle to use from the original icon image. Default value
* is `[0, 0]`.
* @property {ol.style.IconOrigin|undefined} offsetOrigin Origin of the offset: `bottom-left`, `bottom-right`, `top-left` or
* `top-right`. Default is `top-left`.
* @property {number|undefined} opacity Opacity of the icon. Default is `1`.
* @property {number|undefined} scale Scale. Default is `1`.
* @property {boolean|undefined} snapToPixel If `true` integral numbers of pixels are used as the X and Y pixel
* coordinate when drawing the icon in the output canvas. If `false`
* fractional numbers may be used. Using `true` allows for "sharp"
* rendering (no blur), while using `false` allows for "accurate"
* rendering. Note that accuracy is important if the icon's position
* is animated. Without it, the icon may jitter noticeably. Default
* value is `true`.
* @property {boolean|undefined} rotateWithView Whether to rotate the icon with the view. Default is `false`.
* @property {number|undefined} rotation Rotation in radians (positive rotation clockwise). Default is `0`.
* @property {ol.Size|undefined} size Icon size in pixel. Can be used together with `offset` to define the
* sub-rectangle to use from the origin (sprite) icon image.
* @property {ol.Size|undefined} imgSize Image size in pixels. Only required if `img` is set and `src` is not, and for
* SVG images in Internet Explorer 11. The provided `imgSize` needs to match
* the actual size of the image.
* @property {string|undefined} src Image source URI.
*/
/**
* @typedef {Object} style_RegularShapeOptions
* @property {ol.style.Fill|undefined} fill Fill style.
* @property {number} points Number of points for stars and regular polygons. In case of a polygon, the
* number of points is the number of sides.
* @property {number|undefined} radius Radius of a regular polygon.
* @property {number|undefined} radius1 Outer radius of a star.
* @property {number|undefined} radius2 Inner radius of a star.
* @property {number|undefined} angle Shape's angle in radians. A value of 0 will have one of the shape's point
* facing up.
* Default value is 0.
* @property {boolean|undefined} snapToPixel If `true` integral numbers of pixels are used as the X and Y pixel
* coordinate when drawing the shape in the output canvas. If `false`
* fractional numbers may be used. Using `true` allows for "sharp"
* rendering (no blur), while using `false` allows for "accurate"
* rendering. Note that accuracy is important if the shape's
* position is animated. Without it, the shape may jitter noticeably.
* Default value is `true`.
* @property {ol.style.Stroke|undefined} stroke Stroke style.
* @property {number|undefined} rotation Rotation in radians (positive rotation clockwise). Default is `0`.
* @property {boolean|undefined} rotateWithView Whether to rotate the shape with the view. Default is `false`.
* @property {ol.style.AtlasManager|undefined} atlasManager The atlas manager to use for this symbol. When using WebGL it is
* recommended to use an atlas manager to avoid texture switching.
* If an atlas manager is given, the symbol is added to an atlas.
* By default no atlas manager is used.
*/
/**
* @typedef {Object} style_StrokeOptions
* @property {ol.Color|ol.ColorLike|undefined} color A color, gradient or pattern. See {@link ol.color}
* and {@link ol.colorlike} for possible formats. Default null;
* if null, the Canvas/renderer default black will be used.
* @property {string|undefined} lineCap Line cap style: `butt`, `round`, or `square`. Default is `round`.
* @property {string|undefined} lineJoin Line join style: `bevel`, `round`, or `miter`. Default is `round`.
* @property {Array.<number>|undefined} lineDash Line dash pattern. Default is `undefined` (no dash). Please note that
* Internet Explorer 10 and lower [do not support][mdn] the `setLineDash`
* method on the `CanvasRenderingContext2D` and therefore this option will
* have no visual effect in these browsers.
*
* [mdn]: https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/setLineDash#Browser_compatibility
*
* @property {number|undefined} lineDashOffset Line dash offset. Default is '0'.
* @property {number|undefined} miterLimit Miter limit. Default is `10`.
* @property {number|undefined} width Width.
*/
/**
* @typedef {Object} style_TextOptions
* @property {string|undefined} font Font style as CSS 'font' value, see:
* {@link https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/font}.
* Default is '10px sans-serif'
* @property {number|undefined} maxAngle When `placement` is set to `'line'`, allow a maximum angle between adjacent
* characters. The expected value is in radians, and the default is 45°
* (`Math.PI / 4`).
* @property {number|undefined} offsetX Horizontal text offset in pixels. A positive will shift the text right.
* Default is `0`.
* @property {number|undefined} offsetY Vertical text offset in pixels. A positive will shift the text down. Default
* is `0`.
* @property {boolean|undefined} overflow For polygon labels or when `placement` is set to `'line'`, allow text to
* exceed the width of the polygon at the label position or the length of
* the path that it follows. Default is `false`.
* @property {ol.style.TextPlacement|undefined} placement Text placement.
* @property {number|undefined} scale Scale.
* @property {boolean|undefined} rotateWithView Whether to rotate the text with the view. Default is `false`.
* @property {number|undefined} rotation Rotation in radians (positive rotation clockwise). Default is `0`.
* @property {string|undefined} text Text content.
* @property {string|undefined} textAlign Text alignment. Possible values: 'left', 'right', 'center', 'end' or 'start'.
* Default is 'center' for `placement: 'point'`. For `placement: 'line'`, the
* default is to let the renderer choose a placement where `maxAngle` is not
* exceeded.
* @property {string|undefined} textBaseline Text base line. Possible values: 'bottom', 'top', 'middle', 'alphabetic',
* 'hanging', 'ideographic'. Default is 'middle'.
* @property {ol.style.Fill|undefined} fill Fill style. If none is provided, we'll use a dark fill-style (#333).
* @property {ol.style.Stroke|undefined} stroke Stroke style.
* @property {ol.style.Fill|undefined} backgroundFill Fill style for the text background when `placement` is `'point'`. Default is
* no fill.
* @property {ol.style.Stroke|undefined} backgroundStroke Stroke style for the text background when `placement` is `'point'`. Default
* is no stroke.
* @property {Array.<number>|undefined} padding Padding in pixels around the text for decluttering and background. The order
* of values in the array is `[top, right, bottom, left]`. Default is
* `[0, 0, 0, 0]`.
*/
/**
* @typedef {Object} style_StyleOptions
* @property {undefined|string|ol.geom.Geometry|ol.StyleGeometryFunction} geometry Feature property or geometry or function returning a geometry to render for
* this style.
* @property {ol.style.Fill|undefined} fill Fill style.
* @property {ol.style.Image|undefined} image Image style.
* @property {ol.StyleRenderFunction|undefined} renderer Custom renderer. When configured, `fill`, `stroke` and `image` will be
* ignored, and the provided function will be called with each render frame for
* each geometry.
*
* @property {ol.style.Stroke|undefined} stroke Stroke style.
* @property {ol.style.Text|undefined} text Text style.
* @property {number|undefined} zIndex Z index.
*/
/**
* @typedef {Object} tilegrid_TileGridOptions
* @property {ol.Extent|undefined} extent Extent for the tile grid. No tiles outside this extent will be requested by
* {@link ol.source.Tile} sources. When no `origin` or `origins` are
* configured, the `origin` will be set to the top-left corner of the extent.
* @property {number|undefined} minZoom Minimum zoom. Default is 0.
* @property {ol.Coordinate|undefined} origin The tile grid origin, i.e. where the `x` and `y` axes meet (`[z, 0, 0]`).
* Tile coordinates increase left to right and upwards. If not specified,
* `extent` or `origins` must be provided.
* @property {Array.<ol.Coordinate>|undefined} origins Tile grid origins, i.e. where the `x` and `y` axes meet (`[z, 0, 0]`), for
* each zoom level. If given, the array length should match the length of the
* `resolutions` array, i.e. each resolution can have a different origin. Tile
* coordinates increase left to right and upwards. If not specified, `extent`
* or `origin` must be provided.
* @property {!Array.<number>} resolutions Resolutions. The array index of each resolution needs to match the zoom
* level. This means that even if a `minZoom` is configured, the resolutions
* array will have a length of `maxZoom + 1`.
* @property {number|ol.Size|undefined} tileSize Tile size. Default is `[256, 256]`.
* @property {Array.<number|ol.Size>|undefined} tileSizes Tile sizes. If given, the array length should match the length of the
* `resolutions` array, i.e. each resolution can have a different tile size.
*/
/**
* @typedef {Object} tilegrid_WMTSOptions
* @property {ol.Extent|undefined} extent Extent for the tile grid. No tiles outside this extent will be requested by
* {@link ol.source.Tile} sources. When no `origin` or `origins` are
* configured, the `origin` will be set to the top-left corner of the extent.
* @property {ol.Coordinate|undefined} origin The tile grid origin, i.e. where the `x` and `y` axes meet (`[z, 0, 0]`).
* Tile coordinates increase left to right and upwards. If not specified,
* `extent` or `origins` must be provided.
* @property {Array.<ol.Coordinate>|undefined} origins Tile grid origins, i.e. where the `x` and `y` axes meet (`[z, 0, 0]`), for
* each zoom level. If given, the array length should match the length of the
* `resolutions` array, i.e. each resolution can have a different origin. Tile
* coordinates increase left to right and upwards. If not specified, `extent` or
* `origin` must be provided.
* @property {!Array.<number>} resolutions Resolutions. The array index of each resolution needs to match the zoom
* level. This means that even if a `minZoom` is configured, the resolutions
* array will have a length of `maxZoom + 1`
* @property {!Array.<string>} matrixIds matrix IDs. The length of this array needs to match the length of the
* `resolutions` array.
* @property {Array.<ol.Size>|undefined} sizes Number of tile rows and columns of the grid for each zoom level. The values
* here are the `TileMatrixWidth` and `TileMatrixHeight` advertised in the
* GetCapabilities response of the WMTS, and define the grid's extent together
* with the `origin`. An `extent` can be configured in addition, and will
* further limit the extent for which tile requests are made by sources. Note
* that when the top-left corner of the `extent` is used as `origin` or
* `origins`, then the `y` value must be negative because OpenLayers tile
* coordinates increase upwards.
* @property {number|ol.Size|undefined} tileSize Tile size.
* @property {Array.<number|ol.Size>|undefined} tileSizes Tile sizes. The length of this array needs to match the length of the
* `resolutions` array.
* @property {Array.<number>|undefined} widths Number of tile columns that cover the grid's extent for each zoom level. Only
* required when used with a source that has `wrapX` set to `true`, and only
* when the grid's origin differs from the one of the projection's extent. The
* array length has to match the length of the `resolutions` array, i.e. each
* resolution will have a matching entry here.
*/
/**
* @typedef {Object} tilegrid_XYZOptions
* @property {ol.Extent|undefined} extent Extent for the tile grid. The origin for an XYZ tile grid is the top-left
* corner of the extent. The zero level of the grid is defined by the
* resolution at which one tile fits in the provided extent. If not provided,
* the extent of the EPSG:3857 projection is used.
* @property {number|undefined} maxZoom Maximum zoom. The default is `ol.DEFAULT_MAX_ZOOM`. This determines the
* number of levels in the grid set. For example, a `maxZoom` of 21 means there
* are 22 levels in the grid set.
* @property {number|undefined} minZoom Minimum zoom. Default is 0.
* @property {number|ol.Size|undefined} tileSize Tile size in pixels. Default is `[256, 256]`.
*/
/**
* @typedef {Object} ViewState
* @property {ol.Coordinate} center
* @property {ol.proj.Projection} projection
* @property {number} resolution
* @property {number} rotation
* @property {number} zoom The current zoom level.
*/
/**
* @typedef {Object} style_AtlasManagerOptions
* @property {number|undefined} initialSize The size in pixels of the first atlas image. Default is `256`.
* @property {number|undefined} maxSize The maximum size in pixels of atlas images. Default is
* `WEBGL_MAX_TEXTURE_SIZE` or 2048 if WebGL is not supported.
* @property {number|undefined} space The space in pixels between images (default: 1).
*/