topic Editing and shape length in ArcObjects SDK Questions

Editing and shape length

GéomatiqueSopfeu — Thu, 10 Mar 2016 16:09:44 GMT

I need your help!

I have a very simple polygon shape. In an edit session, I want to show the shape lenght of the modified polygon "in real time" (meaning that everytime a point of the polygon is moved, I'll show the new patrol length in a label). My OnSketchModified fire up correctly, it is just that I don't know how to calculate the lenght.

Thanks !

Re: Editing and shape length

AhmedEl-Sisi — Sat, 11 Dec 2021 11:51:06 GMT

Hi,

If you have the polygon geometry you can cast it to ICurve interface and get its Length, something like the following:

 private double GetShapeLength(IGeometry geometry)
  {
            double geometryLength = 0;
            if (geometry!=null&&geometry.GeometryType == esriGeometryType.esriGeometryPolygon)
            {
                ICurve curve = geometry as ICurve;
                geometryLength= curve.Length;
            }
            return geometryLength;
 }