A Cartesian Approach To Generating Pitch Class Sets

I start off by drawing a shape in two-dimensional space. So far I have only drawn triangles and quadrilaterals. At this time the quadrilateral corresponds to a quartet and the triangle corresponds to a trio.

Each pair of co-ordinates that define the perimeter of the object in space correspond to a pair of pitch classes that can then be manipulated in any way the composer chooses.