https://forums.autodesk.com/t5/net-forum/divde-polyline/m-p/2652053#M66341 I want to substract a pointlist from a selected polyline from points at a given distance.<BR /> In other words: if you use the measure command in Autocad: I want to get a list of all insertion points of the inserted blocks.<BR /> <BR /> I have something in mind: extract a list of vertexes , than calculate the length, than divide the line, take what is left to the calculation of the following vertex, ... But I have a strong feeling that this will take me too far. I think I'm missing some essential construction geometry within vb.net. Fri, 19 Mar 2010 22:19:48 GMT Anonymous 2010-03-19T22:19:48Z https://forums.autodesk.com/t5/net-forum/divde-polyline/m-p/2652053#M66341 I want to substract a pointlist from a selected polyline from points at a given distance.<BR /> In other words: if you use the measure command in Autocad: I want to get a list of all insertion points of the inserted blocks.<BR /> <BR /> I have something in mind: extract a list of vertexes , than calculate the length, than divide the line, take what is left to the calculation of the following vertex, ... But I have a strong feeling that this will take me too far. I think I'm missing some essential construction geometry within vb.net. Fri, 19 Mar 2010 22:19:48 GMT https://forums.autodesk.com/t5/net-forum/divde-polyline/m-p/2652053#M66341 Anonymous 2010-03-19T22:19:48Z https://forums.autodesk.com/t5/net-forum/divde-polyline/m-p/2652054#M66342 Hi,<BR /> <BR /> Look at the Curve.GetPointAtDist() method (Polyline inherits from Curve) Sat, 20 Mar 2010 09:48:16 GMT https://forums.autodesk.com/t5/net-forum/divde-polyline/m-p/2652054#M66342 _gile 2010-03-20T09:48:16Z