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Fix tests.

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This commit is contained in:
Antoine Vandecreme 2016-01-26 15:59:10 -05:00
parent 43bb0d7741
commit 3e56092445
1 changed files with 7 additions and 4 deletions
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11
src/tile.js
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@ -351,10 +351,13 @@ $.Tile.prototype = /** @lends OpenSeadragon.Tile.prototype */{
* @return {OpenSeadragon.Point}
*/
getTranslationForEdgeSmoothing: function(scale, canvasSize, sketchCanvasSize) {
var sketchCanvasDelta = new $.Point(
Math.ceil((sketchCanvasSize.x - canvasSize.x) / 2),
Math.ceil((sketchCanvasSize.y - canvasSize.y) / 2));
return sketchCanvasDelta.minus(
// The translation vector must have positive values, otherwise the image goes a bit off
// the sketch canvas to the top and left and we must use negative coordinates to repaint it
// to the main canvas. In that case, some browsers throw:
// INDEX_SIZE_ERR: DOM Exception 1: Index or size was negative, or greater than the allowed value.
var x = Math.max(1, Math.ceil((sketchCanvasSize.x - canvasSize.x) / 2));
var y = Math.max(1, Math.ceil((sketchCanvasSize.y - canvasSize.y) / 2));
return new $.Point(x, y).minus(
this.position
.times($.pixelDensityRatio)
.times(scale || 1)