ashatora/openlayers
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

coding standards, adding jsdoc comments, small code reorganization in svn statavkn

Browse Source 
git-svn-id: http://svn.openlayers.org/branches/openlayers/2.0@1295 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
euzuro
2006-08-17 20:22:47 +00:00
parent 1a0cbdfd25
commit d2601b3684
2 changed files with 44 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

57
lib/OpenLayers/Layer/HTTPRequest.js
View File

@@ -36,10 +36,17 @@ OpenLayers.Layer.HTTPRequest.prototype =
this.params = Object.extend( new Object(), params);
},
/** When the layer is added to the map, once it has taken all the
* relevant properties from the map (in Layer.setMap()), we will
* make the call to initialize the layer's resolutions array.
*
* @param {OpenLayers.Map} map
*/
setMap: function(map) {
OpenLayers.Layer.prototype.setMap.apply(this, arguments);
this.initResolutions();
},
/**
*
*/
@@ -131,31 +138,55 @@ OpenLayers.Layer.HTTPRequest.prototype =
return requestString;
},
/** @private
*
*/
initResolutions: function() {
if (this.scales != null) {
this.resolutions = new Array();
for(var i = 0; i < this.scales.length; i++)
this.resolutions[i] = OpenLayers.Util.getResolutionFromScale(this.scales[i], this.units);
this.maxZoomLevel = this.resolutions.length;
} else if (this.resolutions != null) {
if ((this.scales != null) || (this.resolutions != null)) {
if (this.scales != null) {
//convert the scales into resolutions.
this.resolutions = new Array();
for(var i = 0; i < this.scales.length; i++) {
this.resolutions[i] =
OpenLayers.Util.getResolutionFromScale(this.scales[i],
this.units);
}
}
this.maxZoomLevel = this.resolutions.length;
} else {
this.resolutions = new Array();
if (this.minScale)
this.maxResolution = OpenLayers.Util.getResolutionFromScale(this.minScale, this.units);
if (this.minScale) {
this.maxResolution =
OpenLayers.Util.getResolutionFromScale(this.minScale,
this.units);
}
var maxRes = this.getMaxResolution();
if (this.maxScale) {
/* This will cause this.map.getMaxZoomLevel() to be set the next time
* it is called, which means that the next portion here will succeed. */
var minRes = OpenLayers.Util.getResolutionFromScale(this.maxScale);
this.maxZoomLevel = Math.floor(Math.log(maxRes/minRes) / Math.log(2));
var minRes =
OpenLayers.Util.getResolutionFromScale(this.maxScale);
this.maxZoomLevel = Math.floor(Math.log(maxRes/minRes) /
Math.log(2));
}
for (var i=this.getMinZoomLevel(); i <= this.getMaxZoomLevel(); i++) {
//at this point, min and max zoom levels are correctly set, so
// iterate and add them to the resolutions array.
var minZoomLevel = this.getMinZoomLevel()
var maxZoomLevel = this.getMaxZoomLevel()
for (var i = minZoomLevel; i <= maxZoomLevel; i++) {
this.resolutions.push(maxRes / Math.pow(2, i));
}
}
},
/**
* @returns The currently selected resolution of the map, taken from the
* resolutions array, indexed by current zoom level.
* @type float
*/
getResolution: function() {
var zoom = this.map.getZoom();