Now, since you don�t need to modify them any more and since they are only reference curves, you can template them.

Before doing this it�s better to assign these and the other profile curves we will create to a level. The use of the layers is extremely important; using the Layer Editor you can hide, template or select the different parts of your model very easily. So to assign the curves to a new layer:

1. Window>Layer Editor�
2. Click the New Layer button
3. Click the Rename button and rename the layer referenceProfiles
4. Select the bottomProfile and the topProfile
5. Click on the Assign to Current button.



Create an Image Plane for the side camera (load the file side.tga) in the same way, draw the sideProfile and the curveProfile and assign them to the referenceProfile layer. Once you have drawn all the reference profiles you need, click on the Template button.

 

Top and bottom profiles - Side and curveProfiles - Perspective view

Now you can begin to draw the curves you will use to create the tortoise-shell surface.

Create an Image Plane for the front camera loading the file front.tga and draw the profile as you did before. Rename it lateralProfile.





The Image Plane for the front camera - The lateralProfile

To draw the lateralProfile correctly, use the reference profiles you drew:



Use this image as reference.

use the topProfile to adjust the part of the lateralProfile that will become the top part of the tortoise-shell (the green one in the reference picture)



use the sideProfile to adjust the part of the lateralProfile that will become the side part of the tortoise-shell (the red one in the reference picture). Use the curveProfile to decide where to "bend" the lateralProfile.





Use this image to "bend" the lateralProfile

use the bottomProfile to adjust the part of the lateralProfile that will become the bottom part of the tortoise-shell (the light blue one in the reference picture).



(Tip � When you draw the lateralProfile, make sure that the first 2 CVs of this curve have the same value in y � and the same for the last 2 CVs -; this will later ensure the tangency of the two parts of the tortoise shell).