public override void HandleMouseDown(MouseButtonEventArgs e)
{
base.HandleMouseDown(e);
if (e.ChangedButton != MouseButton.Left)
{
return;
}
var point = e.GetPosition(Canvas);
if (prePoint == default || (prePoint != default && point != prePoint))
{
var drawingPoint = new DrawingPoint(point);
drawingPoint.Render(DrawingCanvas.DefaultPen);
Canvas.AddVisual(drawingPoint);
}
prePoint = point;
}
public static Geometry ToNTSGeometry(this DrawingPoint drawingPoint)
{
return(new NetTopologySuite.Geometries.Point(drawingPoint.Point.ToCoordinate()));
}