Files
openlayers/src/ol/CanvasMap.js
2017-12-21 16:29:28 +01:00

91 lines
3.2 KiB
JavaScript

/**
* @module ol/CanvasMap
*/
import {inherits} from './index.js';
import PluggableMap from './PluggableMap.js';
import PluginType from './PluginType.js';
import {defaults as defaultControls} from './control.js';
import {defaults as defaultInteractions} from './interaction.js';
import _ol_obj_ from './obj.js';
import {register, registerMultiple} from './plugins.js';
import _ol_renderer_canvas_ImageLayer_ from './renderer/canvas/ImageLayer.js';
import _ol_renderer_canvas_Map_ from './renderer/canvas/Map.js';
import _ol_renderer_canvas_TileLayer_ from './renderer/canvas/TileLayer.js';
import _ol_renderer_canvas_VectorLayer_ from './renderer/canvas/VectorLayer.js';
import _ol_renderer_canvas_VectorTileLayer_ from './renderer/canvas/VectorTileLayer.js';
register(PluginType.MAP_RENDERER, _ol_renderer_canvas_Map_);
registerMultiple(PluginType.LAYER_RENDERER, [
_ol_renderer_canvas_ImageLayer_,
_ol_renderer_canvas_TileLayer_,
_ol_renderer_canvas_VectorLayer_,
_ol_renderer_canvas_VectorTileLayer_
]);
/**
* @classdesc
* The map is the core component of OpenLayers. For a map to render, a view,
* one or more layers, and a target container are needed:
*
* var map = new ol.CanvasMap({
* view: new ol.View({
* center: [0, 0],
* zoom: 1
* }),
* layers: [
* new ol.layer.Tile({
* source: new ol.source.OSM()
* })
* ],
* target: 'map'
* });
*
* The above snippet creates a map using a {@link ol.layer.Tile} to display
* {@link ol.source.OSM} OSM data and render it to a DOM element with the
* id `map`.
*
* The constructor places a viewport container (with CSS class name
* `ol-viewport`) in the target element (see `getViewport()`), and then two
* further elements within the viewport: one with CSS class name
* `ol-overlaycontainer-stopevent` for controls and some overlays, and one with
* CSS class name `ol-overlaycontainer` for other overlays (see the `stopEvent`
* option of {@link ol.Overlay} for the difference). The map itself is placed in
* a further element within the viewport.
*
* Layers are stored as a `ol.Collection` in layerGroups. A top-level group is
* provided by the library. This is what is accessed by `getLayerGroup` and
* `setLayerGroup`. Layers entered in the options are added to this group, and
* `addLayer` and `removeLayer` change the layer collection in the group.
* `getLayers` is a convenience function for `getLayerGroup().getLayers()`.
* Note that `ol.layer.Group` is a subclass of `ol.layer.Base`, so layers
* entered in the options or added with `addLayer` can be groups, which can
* contain further groups, and so on.
*
* @constructor
* @extends {ol.PluggableMap}
* @param {olx.MapOptions} options Map options.
* @fires ol.MapBrowserEvent
* @fires ol.MapEvent
* @fires ol.render.Event#postcompose
* @fires ol.render.Event#precompose
* @api
*/
var _ol_CanvasMap_ = function(options) {
options = _ol_obj_.assign({}, options);
delete options.renderer;
if (!options.controls) {
options.controls = defaultControls();
}
if (!options.interactions) {
options.interactions = defaultInteractions();
}
PluggableMap.call(this, options);
};
inherits(_ol_CanvasMap_, PluggableMap);
export default _ol_CanvasMap_;