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Avoid duplicate lineTo and correctly close rings

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This commit is contained in:
Tim Schaub
2016-03-19 16:12:17 -06:00
parent a421b4fb65
commit 22d03cb2ee
2 changed files with 118 additions and 81 deletions
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11
src/ol/render/canvas/canvasimmediate.js
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@@ -364,12 +364,15 @@ ol.render.canvas.Immediate.prototype.moveToLineTo_ = function(flatCoordinates, o
flatCoordinates, offset, end, stride, this.transform_,
this.pixelCoordinates_);
context.moveTo(pixelCoordinates[0], pixelCoordinates[1]);
var i;
for (i = 2; i < pixelCoordinates.length; i += 2) {
var length = pixelCoordinates.length;
if (close) {
length -= 2;
}
for (var i = 2; i < length; i += 2) {
context.lineTo(pixelCoordinates[i], pixelCoordinates[i + 1]);
}
if (close) {
context.lineTo(pixelCoordinates[0], pixelCoordinates[1]);
context.closePath();
}
return end;
};
@@ -384,12 +387,10 @@ ol.render.canvas.Immediate.prototype.moveToLineTo_ = function(flatCoordinates, o
* @return {number} End.
*/
ol.render.canvas.Immediate.prototype.drawRings_ = function(flatCoordinates, offset, ends, stride) {
var context = this.context_;
var i, ii;
for (i = 0, ii = ends.length; i < ii; ++i) {
offset = this.moveToLineTo_(
flatCoordinates, offset, ends[i], stride, true);
context.closePath(); // FIXME is this needed here?
}
return offset;
};