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Making extent optional for projections

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The projection validity extent is used to generate a sensible
set of default resolutions and a sensible default tile grid.
By making it optional, we can still generate defaults - with
zoom levels that are similar to the default web mercator zoom
levels (based on fitting the world on a single tile, even if the
projection is not available for the whole world).
This commit is contained in:
ahocevar
2013-06-17 15:24:37 +02:00
parent d552d27a35
commit 37b369e0d7
4 changed files with 44 additions and 27 deletions
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6
src/objectliterals.jsdoc
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@@ -68,7 +68,7 @@
* Object literal with config options for the Proj4js projection.
* @typedef {Object} ol.Proj4jsProjectionOptions
* @property {string} code The SRS identifier code, e.g. 'EPSG:31256'.
* @property {ol.Extent} extent The validity extent for the SRS.
* @property {ol.Extent|undefined} extent The validity extent for the SRS.
* @property {boolean|undefined} global Whether the projection is valid for the
* whole globe. Default is false.
*/
@@ -78,7 +78,7 @@
* @typedef {Object} ol.ProjectionOptions
* @property {string} code The SRS identifier code, e.g. 'EPSG:4326'.
* @property {ol.ProjectionUnits} units Units.
* @property {ol.Extent} extent The validity extent for the SRS.
* @property {ol.Extent|undefined} extent The validity extent for the SRS.
* @property {string|undefined} axisOrientation The axis orientation as
* specified in Proj4. The default is 'enu'.
* @property {boolean|undefined} global Whether the projection is valid for the
@@ -89,6 +89,8 @@
* Object literal with config options for the view.
* @typedef {Object} ol.View2DOptions
* @property {ol.Coordinate|undefined} center The view center in map projection.
* @property {ol.Extent|undefined} maxExtent The maximum extent for the view.
* If configured, the view's center cannot be outside this extent.
* @property {number|undefined} maxResolution The maximum resolution in map
* units per pixel.
* @property {number|undefined} maxZoom The maximum zoom level for this view.