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Merge pull request #2079 from tschaub/view-options

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Support zoom and resolution constrained views.
This commit is contained in:
Tim Schaub
2014-05-16 11:26:09 -06:00
parent 6185005c3f 3793f33acf
commit e17c8c79f9
6 changed files with 429 additions and 34 deletions
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43
externs/olx.js
View File

@@ -351,7 +351,9 @@ olx.ProjectionOptions.prototype.global;
* constrainRotation: (boolean|number|undefined),
* enableRotation: (boolean|undefined),
* extent: (ol.Extent|undefined),
* minResolution: (number|undefined),
* maxResolution: (number|undefined),
* minZoom: (number|undefined),
* maxZoom: (number|undefined),
* projection: ol.proj.ProjectionLike,
* resolution: (number|undefined),
@@ -400,23 +402,48 @@ olx.View2DOptions.prototype.extent;
/**
* The maximum resolution used to determine the resolution constraint. It is
* used together with `maxZoom` and `zoomFactor`. If unspecified it is
* calculated in such a way that the projection's validity extent fits in a
* 256x256 px tile. If the projection is Spherical Mercator (the default) then
* `maxResolution` defaults to `40075016.68557849 / 256 = 156543.03392804097`.
* used together with `minResolution` (or `maxZoom`) and `zoomFactor`. If
* unspecified it is calculated in such a way that the projection's validity
* extent fits in a 256x256 px tile. If the projection is Spherical Mercator
* (the default) then `maxResolution` defaults to `40075016.68557849 / 256 =
* 156543.03392804097`.
* @type {number|undefined}
*/
olx.View2DOptions.prototype.maxResolution;
/**
* The minimum resolution used to determine the resolution constraint. It is
* used together with `maxResolution` (or `minZoom`) and `zoomFactor`. If
* unspecified it is calculated assuming 29 zoom levels (with a factor of 2).
* If the projection is Spherical Mercator (the default) then `minResolution`
* defaults to `40075016.68557849 / 256 / Math.pow(2, 28) =
* 0.0005831682455839253`.
* @type {number|undefined}
*/
olx.View2DOptions.prototype.minResolution;
/**
* The maximum zoom level used to determine the resolution constraint. It is
* used together with `maxResolution` and `zoomFactor`. Default is `28`.
* used together with `minZoom` (or `maxResolution`) and `zoomFactor`. Default
* is `28`. Note that if `minResolution` is also provided, it is given
* precedence over `maxZoom`.
* @type {number|undefined}
*/
olx.View2DOptions.prototype.maxZoom;
/**
* The minimum zoom level used to determine the resolution constraint. It is
* used together with `maxZoom` (or `minResolution`) and `zoomFactor`. Default
* is `0`. Note that if `maxResolution` is also provided, it is given
* precedence over `minZoom`.
* @type {number|undefined}
*/
olx.View2DOptions.prototype.minZoom;
/**
* The projection. Default is `EPSG:3857` (Spherical Mercator).
* @type {ol.proj.ProjectionLike}
@@ -436,7 +463,8 @@ olx.View2DOptions.prototype.resolution;
/**
* Resolutions to determine the resolution constraint. If set the
* `maxResolution`, `maxZoom` and `zoomFactor` options are ignored.
* `maxResolution`, `minResolution`, `minZoom`, `maxZoom`, and `zoomFactor`
* options are ignored.
* @type {Array.<number>|undefined}
*/
olx.View2DOptions.prototype.resolutions;
@@ -460,8 +488,7 @@ olx.View2DOptions.prototype.zoom;
/**
* The zoom factor used to determine the resolution constraint. Used together
* with `maxResolution` and `maxZoom`. Default is `2`.
* The zoom factor used to determine the resolution constraint. Default is `2`.
* @type {number|undefined}
*/
olx.View2DOptions.prototype.zoomFactor;