https://forums.autodesk.com/t5/autocad-map-3d-developer-forum/arc-entity-in-lwpolyline/m-p/935161#M4549 Vertex's coordinates of LightWeightPolyline you can extract by:<BR /> [code]<BR /> (vlax-safearray-&gt;list (vlax-variant-value (vla-get-coordinates vla:lwpoly)))[/code]<BR /> <BR /> Function<BR /> [code]<BR /> (vla-get-bulge vla:lwpoly <NUMBER_OF_VERTEX>[/code]will return float if start arc segment and 0.0 if start linear segment. Numbers of vertexes start with 0.<BR /> _____________________<BR /> Igor Kostiukovitch<BR /> e-mail: kos@ring.by</NUMBER_OF_VERTEX> Mon, 02 Feb 2004 11:16:46 GMT Anonymous 2004-02-02T11:16:46Z https://forums.autodesk.com/t5/autocad-map-3d-developer-forum/arc-entity-in-lwpolyline/m-p/935160#M4548 i want to find arc entity in lwpolyline without exploding it. Using VisualLisp i can't get vertices in lwpolyline through entnext. u can suggest for VBA also. Thu, 22 Jan 2004 08:20:58 GMT https://forums.autodesk.com/t5/autocad-map-3d-developer-forum/arc-entity-in-lwpolyline/m-p/935160#M4548 Anonymous 2004-01-22T08:20:58Z https://forums.autodesk.com/t5/autocad-map-3d-developer-forum/arc-entity-in-lwpolyline/m-p/935161#M4549 Vertex's coordinates of LightWeightPolyline you can extract by:<BR /> [code]<BR /> (vlax-safearray-&gt;list (vlax-variant-value (vla-get-coordinates vla:lwpoly)))[/code]<BR /> <BR /> Function<BR /> [code]<BR /> (vla-get-bulge vla:lwpoly <NUMBER_OF_VERTEX>[/code]will return float if start arc segment and 0.0 if start linear segment. Numbers of vertexes start with 0.<BR /> _____________________<BR /> Igor Kostiukovitch<BR /> e-mail: kos@ring.by</NUMBER_OF_VERTEX> Mon, 02 Feb 2004 11:16:46 GMT https://forums.autodesk.com/t5/autocad-map-3d-developer-forum/arc-entity-in-lwpolyline/m-p/935161#M4549 Anonymous 2004-02-02T11:16:46Z