Package f32 is a float32 implementation of package image's Point and Rectangle.
The coordinate space has the origin in the top left corner with the axes extending right and down.
A Point is a two dimensional point.
Add return the point p+p2.
Mul returns p scaled by s.
Sub returns the vector p-p2.
A Rectangle contains the points (X, Y) where Min.X <= X < Max.X, Min.Y <= Y < Max.Y.
Add offsets r with the vector p.
Canon returns the canonical version of r, where Min is to the upper left of Max.
Dx returns r's width.
Dy returns r's Height.
Empty reports whether r represents the empty area.
Intersect returns the intersection of r and s.
Size returns r's width and height.
Sub offsets r with the vector -p.
Union returns the union of r and s.