What is point clipping?
Point clipping is a basic process. It’s a simple matter of acceptance or rejection. The point can be completely inside or completely outside of the clipping region. Inside is the point on the clipping window’s boundary. Let (Xmin, Ymin ) and (Xmax, ymax ) represent the clipping window’s lower-left and top-right corners, respectively. Point (x, y) is within the region only if the following four inequalities hold true: Xmin ≤ x ≤ Xmax Ymin ≤ y ≤ Ymax All four conditions must be met for the point to be inside the clipping window. The point lies outside the clipping rectangle if any of the four inequalities does not hold.
