3d to 2d polyline
Once in a while a 3d-polyline passes by in a 2d drawing. The '3D-polyline to 2D-polyline' command was created to convert a large amount of 3D-polylines to a flat polyline. All the user needs to do is select 3D-polylines and define on what height the flat polyline needs to be placed. There are five options: 1) place new polyline on the lowest point of the particular 3D-polylines, 2) place new polyline on the highest point of the particular 3D-polyline 3) place new polyline on the average height of the particular 3D-polyline 4) place new polyline on a fixed height 5) place new polylines with zero elevation.