Convert 3d Polyline To 2d Cad

After you enter pl32 autocad prompts you to select 3d polylines shown highlighted in figure 1.

Convert 3d polyline to 2d cad. Select the polylines to convert. Ive looked at lisp programs all over the internet but non can do it quickly like autocad civil3d can. Under the simplify objects option you can check a box that will convert the 3d polylines into 2d polylines. Use the convert 3d to 2d polylines command to convert 3d to 2d polylines.

The new polyline will take on the elevation of the start point of the 3d polyline. Select the polyline s to convert. Note that the 2d polylines retain their layer dependence. Click modify tabdesign panelconvert 3d to 2d polylinesfind.

Press to complete your selection at which time the routine converts the polylines to 2d figure 2. Click modify tabdesign panelconvert 2d to 3d polylines find. Without map i dont know an easy way. Use the convert 3d to 2d polylinescommand to convert 3d to 2d polylines.

Press to complete your selection at which time the routine converts the polylines to 2d figure 2. You can assign elevations to 3d polylines with the feature line elevation commands. Use this utility if you need to modify the elevations of individual vertices of a 2d polyline. It can be confusing because the lwpolyline and the old polyline entity used way back in the early days of autocad are both shown as a polyline in the properties window.

2d polylines are coplanar objects. Convert 3d polyline to 2d polyline there are various polyline types in autocad the most common of which is usually the lwpolyline lightweight polyline. Use the convert 2d to 3d polylines command to convert 2d to 3d polylines. The new polyline will take on the elevation of the start point of the 3d polyline.

Note that the 2d polylines retain their layer dependence. Ive used the flatten command althow it does convert them to 2d it also puts them to elevation 0. Is there a way to convert 3d polylines contours to 2d polylines with elevations. Click modify tab design panel convert 3d to 2d polylines find.