In Many graphics applications, it is desirable to divide a polygon into triangles.

In this article starting with the section "Continuous vs. Discrete coordinates" you will be given a quick overview of device-coordinates system and logical coordinates system.

In section "Anisotropic and Isotropic mapping modes"  we will explore the mapping of an interval of real logical coordinates to a set  of integer device coordinates.

Section "Point in Triangle Test Algorithm" explores the mathematical notion of a vector to determine the orientation of three points and completes the article with the polygon triangulation algorithm.