1. Essential Geometry

6. Equations Implicit – F(x,y) = 0 Parametric – P(t) = x – Q(t) = y – 0 <= t <= 1

7. Geometric Operations Scan conversion – Convert geometry into pixels – Let the graphics system do it Bounding box – Efficiency Distance from a point – Selection Nearest Point – Snapping Inside/Outside – Selection

8. Points and Vectors dX dY X,Y

9. Geometric Operations

10. Top LeftRight Bottom

11. Geometric Operations X1,Y1 Implicit Parametric

12. Geometric Operations Cx,Cy R Implicit Parametric

13. Geometric Operations Top LeftRight Bottom

14. Geometric Operations B Cx,Cy A Implicit Parametric