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How to create an editing tool that draws freehand?

Question asked by on Jul 13, 2020
Latest reply on Jul 20, 2020 by

I would like to create an editing tool with which I can draw freehand.

In the constructor of the tool, I set the following:

IsSketchTool = true;
SketchType = SketchGeometryType.OpenLasso;


In the method HandleMouseDownAsync(MapViewMouseButtonEventArgs e), I get the current sketch because I want to  add the clicked point to it:

Polyline sketchPolyline = await base.GetCurrentSketchAsync() as Polyline;


In the method OnToolMouseMove(MapViewMouseEventArgs e), I do the same as above.

My question: what geometry type does the method  GetCurrentSketchAsync() return? It is not a polyline. But what else?

Thank you for your reply in advance.