public override void Tap(GestureEventArgs e)
{
Point2D point = _map.ScreenToMap(e.GetPosition(_map));
DrawEventArgs args = new DrawEventArgs
{
Geometry =new GeoPoint(point.X,point.Y)
};
OnDrawComplete(args);
base.Tap(e);
}
private void OnDrawComplete(DrawEventArgs args)
{
if (DrawCompleted != null)
{
DrawCompleted(this, args);
}
}
private void endDraw(bool isCancel = false)
{
Rectangle2D bounds = this.map.Bounds;
if (bounds.IsEmpty || bounds.Width == 0.0 || bounds.Height == 0.0)
{
return;
}
GeoRegion geoRegion = new GeoRegion();//构造返回的Geometry
Point2DCollection geoPoints = new Point2DCollection();
geoPoints.Add(bounds.BottomLeft);
geoPoints.Add(new Point2D(bounds.Right, bounds.Bottom));
geoPoints.Add(bounds.TopRight);
geoPoints.Add(new Point2D(bounds.Left, bounds.Top));
geoPoints.Add(bounds.BottomLeft);//需要添加起始点做为最后一个点
geoRegion.Parts.Add(geoPoints);
DrawEventArgs args2 = new DrawEventArgs
{
Geometry = geoRegion
};
Deactivate();
OnDrawCompleted(args2);
}