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Only update kinetic when number of touches has not changed

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This commit is contained in:
Andreas Hocevar
2017-02-14 00:48:59 +01:00
parent 8e35b7a1ad
commit 186935c147
1 changed files with 17 additions and 15 deletions
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src/ol/interaction/dragpan.js
+3 -1
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@@ -70,10 +70,11 @@ ol.interaction.DragPan.handleDragEvent_ = function(mapBrowserEvent) {
var targetPointers = this.targetPointers; var targetPointers = this.targetPointers;
var centroid = var centroid =
ol.interaction.Pointer.centroid(targetPointers); ol.interaction.Pointer.centroid(targetPointers);
if (targetPointers.length == this.lastPointersCount_) {
if (this.kinetic_) { if (this.kinetic_) {
this.kinetic_.update(centroid[0], centroid[1]); this.kinetic_.update(centroid[0], centroid[1]);
} }
if (this.lastCentroid && targetPointers.length == this.lastPointersCount_) { if (this.lastCentroid) {
var deltaX = this.lastCentroid[0] - centroid[0]; var deltaX = this.lastCentroid[0] - centroid[0];
var deltaY = centroid[1] - this.lastCentroid[1]; var deltaY = centroid[1] - this.lastCentroid[1];
var map = mapBrowserEvent.map; var map = mapBrowserEvent.map;
@@ -86,6 +87,7 @@ ol.interaction.DragPan.handleDragEvent_ = function(mapBrowserEvent) {
center = view.constrainCenter(center); center = view.constrainCenter(center);
view.setCenter(center); view.setCenter(center);
} }
}
this.lastCentroid = centroid; this.lastCentroid = centroid;
this.lastPointersCount_ = targetPointers.length; this.lastPointersCount_ = targetPointers.length;
}; };