private void SetNewExtent(ExtentChangedMessage obj)
{
switch (obj.ReasonToChangeExtent)
{
case ExtentChangedReason.CenterLayer:
MapView.SetView(obj.Extent.Expand(1.1));
break;
case ExtentChangedReason.CenterMap:
SetExtent();
break;
case ExtentChangedReason.ZoomIn:
MapView.SetView(MapView.Extent.Expand(0.75));
break;
case ExtentChangedReason.ZoomOut:
MapView.SetView(MapView.Extent.Expand(1.25));
break;
case ExtentChangedReason.StatusBarZoomInOrZoomOut:
// TODO blokkeren dat extent groter wordt dan bepaald zoom extent
try
{
MapView.SetView(MapView.Extent.Expand(obj.ZoomFactor));
}
// error komt als je flink bent uitgezoomd en nog verder wil uitzoomen
catch (NullReferenceException e) { }
break;
}
}
private void ZoomMap(double zoomFactor)
{
var message = new ExtentChangedMessage(ExtentChangedReason.StatusBarZoomInOrZoomOut)
{
ZoomFactor = zoomFactor
};
MessengerInstance.Send(message);
}