586f393492
This change adds a lot of flexibility to working with tile layers: Sources where the server projection or tile grid do not matter can now be constructed without specifying a projection or tile grid. The tileUrlFunction/imageUrlFunction now also creates updated URLs when the params of the layer change, so things like mergeNewParams in ol2 will be possible. A nice side effect of this whole change is that there is no more duplicated code between tiled and single image WMS layers. While I was at it, I also fixed a WMS 1.1.1 axis order issue and incorrect STYLES params (STYLES=& instead of STYLES&).
65 lines
1.5 KiB
JavaScript
65 lines
1.5 KiB
JavaScript
goog.provide('ol.source.StaticImage');
|
|
|
|
goog.require('ol.Image');
|
|
goog.require('ol.ImageUrlFunctionType');
|
|
goog.require('ol.source.ImageSource');
|
|
|
|
|
|
|
|
/**
|
|
* @constructor
|
|
* @extends {ol.source.ImageSource}
|
|
* @param {ol.source.StaticImageOptions} options Options.
|
|
*/
|
|
ol.source.StaticImage = function(options) {
|
|
|
|
var imageFunction = ol.source.StaticImage.createImageFunction(
|
|
options.url);
|
|
|
|
var imageExtent = options.imageExtent;
|
|
var imageSize = options.imageSize;
|
|
var imageResolution = imageExtent.getHeight() / imageSize.height;
|
|
var projection = goog.isDef(options.projection) ? options.projection : null;
|
|
|
|
goog.base(this, {
|
|
attributions: options.attributions,
|
|
crossOrigin: options.crossOrigin,
|
|
extent: options.extent,
|
|
projection: options.projection,
|
|
imageUrlFunction: imageFunction,
|
|
resolutions: [imageResolution]
|
|
});
|
|
|
|
/**
|
|
* @private
|
|
* @type {ol.Image}
|
|
*/
|
|
this.image_ = this.createImage(
|
|
imageExtent, imageResolution, imageSize, projection);
|
|
|
|
};
|
|
goog.inherits(ol.source.StaticImage, ol.source.ImageSource);
|
|
|
|
|
|
/**
|
|
* @inheritDoc
|
|
*/
|
|
ol.source.StaticImage.prototype.getImage =
|
|
function(extent, resolution, projection) {
|
|
if (extent.intersects(this.image_.getExtent())) {
|
|
return this.image_;
|
|
}
|
|
return null;
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {string|undefined} url URL.
|
|
* @return {ol.ImageUrlFunctionType} Function.
|
|
*/
|
|
ol.source.StaticImage.createImageFunction = function(url) {
|
|
return function(extent, size, projection) {
|
|
return url;
|
|
};
|
|
};
|