Introduction by example (Sketch)

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)

The coordinate system is a standard right-handed Cartesian one.

• 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.