13.15.8 Orthogonal projection in the plane: projection
See Section 14.14.8 for projections in space.
The projection command creates a projection.
-
projection takes one mandatory argument and one
optional argument:
-
O, a geometric object.
- Optionally, G, a geometric object.
- projection(O) returns a new command which projects
points onto O.
- projection(O,G) returns and draws the projection of
G onto O.
Examples.
-
Input:
p1:= projection(line(-1,i)) |
p1(i+1)
|
Output:
- Input:
p2:= projection(circle(-1,1)) |
p2(i)
|
Output:
- Input:
projection(line(-1, i), 1+i)
Output:
- Input:
projection(circle(-1,1), i)
Output: