1. © 2009 McGraw-Hill Higher Education. All rights reserved.

2. Outline vs. Contour line

3. © 2009 McGraw-Hill Higher Education. All rights reserved.

4. picture plane

5. © 2009 McGraw-Hill Higher Education. All rights reserved. Angle Transfer #2

6. © 2009 McGraw-Hill Higher Education. All rights reserved.

7. Assisted Perception The Clock Angle Tool

8. © 2009 McGraw-Hill Higher Education. All rights reserved. The Mondrian Tool Assisted Perception on X/Y axis

9. © 2009 McGraw-Hill Higher Education. All rights reserved. Assisted Perception on angles of receding edges The Clock Angle Tool

10. © 2009 McGraw-Hill Higher Education. All rights reserved. Angle Transfer #1

11. © 2009 McGraw-Hill Higher Education. All rights reserved. Don’t go there!

12. © 2009 McGraw-Hill Higher Education. All rights reserved.