Mesh projection

How can I obtain the polylines of the projection of a mesh to the XY plane ? Are there some Autocad commands can help me ?
Thank you, Denis.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

create a section view along the xy plane
use xclip if necessary
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Polytechforum.com is a website by engineers for engineers. It is not affiliated with any of manufacturers or vendors discussed here. All logos and trade names are the property of their respective owners.