2009

Table Of Contents
To create a profile curve
1 Make sure youve done the steps in
Preparing for the lessons on page 136.
2 Select Panels > Layouts > Four Panes so you can see multiple views of the
scene.
3 Select Create > CV Curve Tool.
This is the most commonly used tool for drawing curves.
4 In the front view, click the numbered positions as shown in the figure.
Make sure the first and last positions are on the grids Y-axis (the thickest
vertical line of the front views grid).
Also, click three times in the same spot for positions 9, 10, and 11. This
is necessary to create a sharp point or corner in the curve.
To change the position of the most recent point clicked, you can
middle-mouse drag it.
5 (Windows and Linux) After you click position 13, press Enter to complete
the curves creation.
(Mac OS X) Press Return to complete the curves creation.
The points you clicked in the scene view become the control vertices
(CVs) of the completed curve. CVs are points you manipulate to alter the
shape of a curve (or surface). These points often lie away from the curve.
138 | Chapter 4 NURBS Modeling