Pichai Asokan wanted us to know:
On Tue, Dec 10, 2002 at 08:43:12AM +0530, Srihari Rasmi wrote:[.....]
A rectangle needs only two points = 4 variables.
Assuming that the vertices are numbered continuously,
(x1, y1) + (x3, y3) or (x2, y2) + (x4, y4) is enough.
[.....]'Fractally', the pixel is a rectangle. Its easy to build an exact huge
complex...lets stay simple.
Thats why the underlying 'bounding rectangle' is always used. IOW
whatever be the visual shape the system treats it as a rectangle
- technically the smallest rectangle with its edges parallel to the
screen that contains the shape.