AutoCAD® 2012 and AutoCAD LT® 2012 Essentials: Autodesk® Official Training Guide

Editing Surface Models

Surface models have editing tools that modify existing surface boundaries. In the following sections you will modify surface boundaries using other surfaces or by projecting edges onto existing surfaces and using these projections to modify boundaries or cut holes in surfaces. In addition, you will project 2D objects onto 3D surfaces without altering the surfaces at all.

Trimming Surfaces with Other Surfaces

In the following steps, you will trim off the portion of the dome membrane that extends beyond the curtain wall extrusion you generated in the previous section.

1. If the file is not already open, go to the book's web page, browse to Chapter 17, get the file Ch17-B.dwg, and open it. Switch to the 3D Modeling workspace ...