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Transform extent coordinates before clipping

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This commit is contained in:
Tim Schaub
2014-02-25 21:49:32 -07:00
parent af1bd0228c
commit 50001132be
1 changed files with 12 additions and 4 deletions
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src/ol/render/canvas/canvasreplay.js
+12 -4
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@@ -1818,12 +1818,20 @@ ol.render.canvas.ReplayGroup.prototype.replay_ = function(
zs, context, extent, pixelRatio, transform, viewRotation, zs, context, extent, pixelRatio, transform, viewRotation,
renderGeometryFunction) { renderGeometryFunction) {
var pixelExtent = ol.geom.flat.transform2D(this.maxExtent_, 2, transform); var maxExtent = this.maxExtent_;
var width = pixelExtent[2] - pixelExtent[0]; var minX = maxExtent[0];
var height = pixelExtent[1] - pixelExtent[3]; var minY = maxExtent[1];
var maxX = maxExtent[2];
var maxY = maxExtent[3];
var flatClipCoords = ol.geom.flat.transform2D(
[minX, minY, minX, maxY, maxX, maxY, maxX, minY], 2, transform);
context.save(); context.save();
context.beginPath(); context.beginPath();
context.rect(pixelExtent[0], pixelExtent[3], width, height); context.moveTo(flatClipCoords[0], flatClipCoords[1]);
context.lineTo(flatClipCoords[2], flatClipCoords[3]);
context.lineTo(flatClipCoords[4], flatClipCoords[5]);
context.lineTo(flatClipCoords[6], flatClipCoords[7]);
context.closePath();
context.clip(); context.clip();
var i, ii, j, jj, replays, replayType, replay, result; var i, ii, j, jj, replays, replayType, replay, result;