Book Image

Autodesk AutoCAD 2013 Practical 3D Drafting and Design

Book Image

Autodesk AutoCAD 2013 Practical 3D Drafting and Design


Overview of this book

AutoCAD is a computer-aided design (CAD) and drafting software application. AutoCAD supports both 2D and 3D formats. AutoCAD is used in a range of industries and is utilized by architects, project managers, and engineers, among others."Autodesk AutoCAD 2013 Practical 3D Drafting and Design" will take you beyond the 2D frontier and help you create accurate 3D models that simulate reality. This book is crammed full of creative and practical tutorials which will help you master the third dimension. From exercises on coordinate systems to creating solids and surfaces from 2D, you will wonder how you ever designed without this resource by your side."Autodesk AutoCAD 2013 Practical 3D Drafting and Design" is full of hands-on studies and projects that will help develop your 3D skills. Starting from the assumption of only a very basic knowledge of AutoCAD, this book will help you master 3D visualization and coordinate systems, create 3D models from 2D drawings, and from basic shapes, measure volumes, and other information, obtain 2D construction drawings from 3D models as well as how to apply lights and materials to get photorealistic images.
Table of Contents (20 chapters)
Autodesk AutoCAD 2013 Practical 3D Drafting and Design
About the Author
About the Reviewers

Conversions between 3D objects

Here are two commands to convert objects to solids or surfaces, concluding the creation processes. These commands can be found on the Menu bar, Modify | 3D Operation, and on the ribbon, Home | Solid Editing.

Converting objects to solids

Here is the command to convert some type of objects to solids.


The CONVTOSOLID command (no aliases) converts the following objects to solids:

  • 2D polylines with uniform width and nonzero thickness

  • 2D closed polylines with nonzero thickness

  • Circles with nonzero thickness

  • Closed surfaces without openings between edges

  • Closed 3D meshes without openings between edges

The command just prompts for the selection of objects. The DELOBJ variable (with value 1) indicates the deletion of the original objects.


The converted solids maintain layer, color, and other general properties from the original objects. The current layer is not applied.

Converting objects to surfaces

The next command converts some type of objects to...