Distance and azimuth between vertices of a polyline in c#

[rodrigo_gcmsoft]

I have a routine in C # that lists all the vertices of a polyline. I wonder how the distance between each vertex and what angle to the y-axis of the drawing. Anyone have any ideas?

 

 

CODE:

[CommandMethod("listaVertices")]
       static public void ListVertices()
       {
           Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
           Editor ed = doc.Editor;
           Database db = doc.Database;
           PromptEntityResult per = ed.GetEntity("Select a polyline");
           if (per.Status == PromptStatus.OK)
           {
               Transaction tr = db.TransactionManager.StartTransaction();
               using (tr)
               {
                   DBObject obj = tr.GetObject(per.ObjectId, OpenMode.ForRead);
                   // If a "lightweight" (or optimized) polyline
                   Polyline lwp = obj as Polyline;
                   if (lwp != null)
                   {
                       // Use a for loop to get each vertex, one by one
                       int vn = lwp.NumberOfVertices;
                       for (int i = 0; i < vn; i++)
                       {
                           // Could also get the 3D point here
                           Point2d pt = lwp.GetPoint2dAt(i);
                           ed.WriteMessage("\n" + pt.ToString());
                       }
                   }
                   else
                   {
                       // If an old-style, 2D polyline
                       Polyline2d p2d = obj as Polyline2d;
                       if (p2d != null)
                       {
                           // Use foreach to get each contained vertex
                           foreach (ObjectId vId in p2d)
                           {
                               Vertex2d v2d = (Vertex2d)tr.GetObject(vId, OpenMode.ForRead);
                               ed.WriteMessage("\n" + v2d.Position.ToString());
                           }
                       }
                       else
                       {
                           // If an old-style, 3D polyline
                           Polyline3d p3d = obj as Polyline3d;
                           if (p3d != null)
                           {
                               // Use foreach to get each contained vertex
                               foreach (ObjectId vId in p3d)
                               {
                                   PolylineVertex3d v3d = (PolylineVertex3d)tr.GetObject(vId, OpenMode.ForRead);
                                   ed.WriteMessage("\n" + v3d.Position.ToString());
                               }
                           }
                       }
                   }
                   // Committing is cheaper than aborting
                   tr.Commit();
               }
           }
       }

 

Thanks!

Rodrigo