4bb521db65
To avoid surprises, we configure everything that is a WMS GetMap request parameter in the params object, and not as direct configuration option. This affects the VERSION and TRANSPARENT params.
120 lines
3.4 KiB
JavaScript
120 lines
3.4 KiB
JavaScript
goog.provide('ol.TileUrlFunction');
|
|
goog.provide('ol.TileUrlFunctionType');
|
|
|
|
goog.require('goog.array');
|
|
goog.require('goog.math');
|
|
goog.require('ol.TileCoord');
|
|
goog.require('ol.source.wms');
|
|
goog.require('ol.tilegrid.TileGrid');
|
|
|
|
|
|
/**
|
|
* @typedef {function(ol.TileCoord, ol.tilegrid.TileGrid, ol.Projection):
|
|
* (string|undefined)}
|
|
*/
|
|
ol.TileUrlFunctionType;
|
|
|
|
|
|
/**
|
|
* @param {string} template Template.
|
|
* @return {ol.TileUrlFunctionType} Tile URL function.
|
|
*/
|
|
ol.TileUrlFunction.createFromTemplate = function(template) {
|
|
var match =
|
|
/\{(\d)-(\d)\}/.exec(template) || /\{([a-z])-([a-z])\}/.exec(template);
|
|
if (match) {
|
|
var templates = [];
|
|
var startCharCode = match[1].charCodeAt(0);
|
|
var stopCharCode = match[2].charCodeAt(0);
|
|
var charCode;
|
|
for (charCode = startCharCode; charCode <= stopCharCode; ++charCode) {
|
|
templates.push(template.replace(match[0], String.fromCharCode(charCode)));
|
|
}
|
|
return ol.TileUrlFunction.createFromTemplates(templates);
|
|
} else {
|
|
return function(tileCoord) {
|
|
if (goog.isNull(tileCoord)) {
|
|
return undefined;
|
|
} else {
|
|
return template.replace('{z}', tileCoord.z)
|
|
.replace('{x}', tileCoord.x)
|
|
.replace('{y}', tileCoord.y);
|
|
}
|
|
};
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {Array.<string>} templates Templates.
|
|
* @return {ol.TileUrlFunctionType} Tile URL function.
|
|
*/
|
|
ol.TileUrlFunction.createFromTemplates = function(templates) {
|
|
return ol.TileUrlFunction.createFromTileUrlFunctions(
|
|
goog.array.map(templates, ol.TileUrlFunction.createFromTemplate));
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {Array.<ol.TileUrlFunctionType>} tileUrlFunctions Tile URL Functions.
|
|
* @return {ol.TileUrlFunctionType} Tile URL function.
|
|
*/
|
|
ol.TileUrlFunction.createFromTileUrlFunctions = function(tileUrlFunctions) {
|
|
return function(tileCoord, tileGrid, projection) {
|
|
if (goog.isNull(tileCoord)) {
|
|
return undefined;
|
|
} else {
|
|
var index = goog.math.modulo(tileCoord.hash(), tileUrlFunctions.length);
|
|
return tileUrlFunctions[index](tileCoord, tileGrid, projection);
|
|
}
|
|
};
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {string} baseUrl Base URL (may have query data).
|
|
* @param {Object.<string, string|number>} params WMS parameters.
|
|
* @return {ol.TileUrlFunctionType} Tile URL function.
|
|
*/
|
|
ol.TileUrlFunction.createWMSParams =
|
|
function(baseUrl, params) {
|
|
return function(tileCoord, tileGrid, projection) {
|
|
if (goog.isNull(tileCoord)) {
|
|
return undefined;
|
|
} else {
|
|
var size = tileGrid.getTileSize(tileCoord.z);
|
|
var extent = tileGrid.getTileCoordExtent(tileCoord);
|
|
return ol.source.wms.getUrl(
|
|
baseUrl, params, extent, size, projection);
|
|
}
|
|
};
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {ol.TileCoord} tileCoord Tile coordinate.
|
|
* @return {string|undefined} Tile URL.
|
|
*/
|
|
ol.TileUrlFunction.nullTileUrlFunction = function(tileCoord) {
|
|
return undefined;
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {function(ol.TileCoord, ol.tilegrid.TileGrid, ol.Projection):
|
|
* ol.TileCoord} transformFn Transform.function.
|
|
* @param {ol.TileUrlFunctionType} tileUrlFunction Tile URL function.
|
|
* @return {ol.TileUrlFunctionType} Tile URL function.
|
|
*/
|
|
ol.TileUrlFunction.withTileCoordTransform =
|
|
function(transformFn, tileUrlFunction) {
|
|
return function(tileCoord, tileGrid, projection) {
|
|
if (goog.isNull(tileCoord)) {
|
|
return undefined;
|
|
} else {
|
|
return tileUrlFunction(
|
|
transformFn(tileCoord, tileGrid, projection), tileGrid, projection);
|
|
}
|
|
};
|
|
};
|