public static Geometry ToNTSGeometry(this DrawingPolygon drawingPolygon)
{
var shell = drawingPolygon.Shell.Select(p => p.ToCoordinate()).ToArray();
if (drawingPolygon.HasHoles)
{
var holes = drawingPolygon.Holes.Select(h => new LinearRing(h.Select(p => p.ToCoordinate()).ToArray())).ToArray();
return(new Polygon(new LinearRing(shell), holes));
}
return(new Polygon(new LinearRing(shell)));
}
public override void HandleMouseMove(MouseEventArgs e)
{
base.HandleMouseMove(e);
if (prePoint == default)
{
return;
}
var targetPoints = new List <Point>(points);
var currentPoint = e.GetPosition(Canvas);
currentPoint = AlignPointToXY(currentPoint);
targetPoints.Add(currentPoint);
if (element == null)
{
element = new DrawingLineString(targetPoints, false);
Canvas.AddVisual(element);
}
else
{
if (targetPoints.Count <= 2)
{
(element as DrawingLineString).Update(targetPoints, false);
}
else
{
if (element is DrawingLineString)
{
Canvas.RemoveVisual(element);
element = new DrawingPolygon(targetPoints);
Canvas.AddVisual(element);
}
else
{
(element as DrawingPolygon).Update(targetPoints);
}
}
}
element.Render(DrawingCanvas.DefaultPen);
}