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Add transformGeometry function to avoid repeated code

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This commit is contained in:
Andreas Hocevar
2014-07-30 14:07:55 +02:00
parent 68d572e062
commit ee5f85df9f
2 changed files with 31 additions and 21 deletions
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26
src/ol/format/featureformat.js
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@@ -1,6 +1,7 @@
goog.provide('ol.format.Feature');
goog.require('goog.functions');
goog.require('ol.proj');
@@ -98,3 +99,28 @@ ol.format.Feature.prototype.writeFeatures = goog.abstractMethod;
* @return {ArrayBuffer|Node|Object|string} Node.
*/
ol.format.Feature.prototype.writeGeometry = goog.abstractMethod;
/**
* @param {ol.geom.Geometry} geometry Geometry.
* @param {boolean} write Set to true for writing, false for reading.
* @param {(olx.format.WriteOptions|olx.format.ReadOptions)=} opt_options
* Options.
* @return {ol.geom.Geometry} Transformed geometry.
* @protected
*/
ol.format.Feature.transformGeometry = function(
geometry, write, opt_options) {
var featureProjection = goog.isDef(opt_options) ?
ol.proj.get(opt_options.featureProjection) : null;
var dataProjection = goog.isDef(opt_options) ?
ol.proj.get(opt_options.dataProjection) : null;
if (!goog.isNull(featureProjection) && !goog.isNull(dataProjection) &&
!ol.proj.equivalent(featureProjection, dataProjection)) {
return (write ? geometry.clone() : geometry).transform(
write ? featureProjection : dataProjection,
write ? dataProjection : featureProjection);
} else {
return geometry;
}
};