Page 27 - CHAPTER 1

CHAPTER 4. AUTOCAD 3D

4.1 INTRODUCTION

With 3D modeling, you can create solid, wireframe, and mesh models of your design. Modeling in
3D has several advantages. You can

 View the model from any vantage point

 Generate reliable standard and auxiliary 2D views automatically
 Create sections and 2D drawings

 Remove hidden lines and do realistic shading

 Check interferences
 Add lighting

 Create realistic renderings
 Navigate through the model

 Use the model to create an animation

 Perform engineering analysis
 Extract manufacturing data

4.2 3D CARTESIAN COORDINATES

3D Cartesian coordinates specify a precise location by using three coordinate values: X, Y, and Z.

Entering 3D Cartesian coordinate values (X,Y,Z) is similar to entering 2D coordinate values (X,Y).
In addition to specifying X and Y values Z value is also specified

4.3 VIEWCUBE

The ViewCube provides visual feedback about the current orientation of a model. The ViewCube
can help you adjust the viewpoint of a model. The orientation shown by the ViewCube is based on

the North direction of the WCS for the model. The ViewCube also shows the current UCS and

allows you to restore a named UCS.

Amal Jyothi College of Engineering 27