Convert a 3D Polyline to a 2D Polyline. It’s a shame that after so many years (since R14) this problem has existed in AutoCAD. Welcome to Autodesk’s AutoCAD Civil 3D Forums. Share your knowledge, ask questions, and explore popular AutoCAD Civil 3D topics. Is there a command that can be used in Lisp to join two 3D polylines? I know there is a toolbar command in Land Development Desktop, but I don't have that available.

Hi Y'all Is there a command to combine two 3d polylines into a single polyline? Either combine, take the mean between the two lines, or draw a third line at the mid distance between the two original lines? The lines are created (in a.dxf) by a GPS unit in the field, and represent tracks needing to be mapped. Typically we would drive out a track and then drive back on the same track; this gives me two 3d polylines.

Because of GPS errors it better practice to log the roads/ tracks twice. Bagpipe Tunes Pdf Format. The lines can have from 2000 to 10000 vertices, so manually drawing is not an option.

Segmentation Tool Matlab. RTK GPS is good to.

Hi Y'all Is there a command to combine two 3d polylines into a single polyline? Either combine, take the mean between the two lines, or draw a third line at the mid distance between the two original lines? The lines are created (in a.dxf) by a GPS unit in the field, and represent tracks needing to be mapped. Typically we would drive out a track and then drive back on the same track; this gives me two 3d polylines. Because of GPS errors it better practice to log the roads/ tracks twice.

The lines can have from 2000 to 10000 vertices, so manually drawing is not an option. RTK GPS is good to.