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Move the temporary array to the module level

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No need to create a new variable for each instance.
This commit is contained in:
Frederic Junod
2018-02-21 15:25:45 +01:00
parent ab28c48338
commit 17a799059c
1 changed files with 8 additions and 9 deletions
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17
src/ol/render/Feature.js
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@@ -73,15 +73,15 @@ const RenderFeature = function(type, flatCoordinates, ends, properties, id) {
*/ */
this.properties_ = properties; this.properties_ = properties;
/**
* @private
* @type {ol.Transform}
*/
this.tmpTransform_ = createTransform();
}; };
/**
* @type {ol.Transform}
*/
const tmpTransform = createTransform();
/** /**
* Get a feature property by its key. * Get a feature property by its key.
* @param {string} key Key * @param {string} key Key
@@ -267,12 +267,11 @@ RenderFeature.prototype.transform = function(source, destination) {
const pixelExtent = source.getExtent(); const pixelExtent = source.getExtent();
const projectedExtent = source.getWorldExtent(); const projectedExtent = source.getWorldExtent();
const scale = getHeight(projectedExtent) / getHeight(pixelExtent); const scale = getHeight(projectedExtent) / getHeight(pixelExtent);
const transform = this.tmpTransform_; composeTransform(tmpTransform,
composeTransform(transform,
projectedExtent[0], projectedExtent[3], projectedExtent[0], projectedExtent[3],
scale, -scale, 0, scale, -scale, 0,
0, 0); 0, 0);
transform2D(this.flatCoordinates_, 0, this.flatCoordinates_.length, 2, transform2D(this.flatCoordinates_, 0, this.flatCoordinates_.length, 2,
transform, this.flatCoordinates_); tmpTransform, this.flatCoordinates_);
}; };
export default RenderFeature; export default RenderFeature;