2 Introduction by example

The sketch input language will seem familiar to users of the PSTricks package for LaTeX. The following program draws a triangular polygon pierced by a line.

  polygon(0,0,1)(1,0,0)(0,1,0)
  line(-1,-1,-1)(2,2,2)

• Hello world: Simplest possible sketch program.
• Drawing options: Controlling object appearance.
• Drawing a solid: Drawing an object with 3d appearance.
• Special objects: Laying TeX over, in, or under drawings.
• Object transforms: Rotate, translate, scale, and others.
• Repeated objects: Making transformed copies.
• Swept objects: Sweeping objects in space to make new shapes.