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Merge pull request #10094 from ahocevar/immediate-hitdetection

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New Layer#getFeatures method with fast hit detection
This commit is contained in:
Andreas Hocevar
2019-10-14 22:21:08 +02:00
committed by GitHub
parent a75ea2cc6b 90d6a6f441
commit 54884314ee
20 changed files with 726 additions and 51 deletions
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17
src/ol/renderer/canvas/Layer.js
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@@ -214,23 +214,24 @@ class CanvasLayerRenderer extends LayerRenderer {
/**
* Creates a transform for rendering to an element that will be rotated after rendering.
* @param {import("../../PluggableMap.js").FrameState} frameState Frame state.
* @param {import("../../coordinate.js").Coordinate} center Center.
* @param {number} resolution Resolution.
* @param {number} rotation Rotation.
* @param {number} pixelRatio Pixel ratio.
* @param {number} width Width of the rendered element (in pixels).
* @param {number} height Height of the rendered element (in pixels).
* @param {number} offsetX Offset on the x-axis in view coordinates.
* @protected
* @return {!import("../../transform.js").Transform} Transform.
*/
getRenderTransform(frameState, width, height, offsetX) {
const viewState = frameState.viewState;
const pixelRatio = frameState.pixelRatio;
getRenderTransform(center, resolution, rotation, pixelRatio, width, height, offsetX) {
const dx1 = width / 2;
const dy1 = height / 2;
const sx = pixelRatio / viewState.resolution;
const sx = pixelRatio / resolution;
const sy = -sx;
const dx2 = -viewState.center[0] + offsetX;
const dy2 = -viewState.center[1];
return composeTransform(this.tempTransform_, dx1, dy1, sx, sy, -viewState.rotation, dx2, dy2);
const dx2 = -center[0] + offsetX;
const dy2 = -center[1];
return composeTransform(this.tempTransform_, dx1, dy1, sx, sy, -rotation, dx2, dy2);
}
/**