The Euler circle

a complex geometric figure, with named points and marked angles.

Fractal snowflake

the snow flake, a well-known fractal figure, built with a recursive program.

Pentagon with ruler and compass

the pentagon with the construction lines showing how to draw it.

Text around a circle

how to use a geometrical transformation on text.

Writing in the background of a plot

users of SmileLab customize a plot with the graphic engine.

Broken lines with many points

how to use SetTransformation to shift the origin.

Quarter of circle

how to draw nicely a quarter of a circle using ArcPath and ClosePath.

Polygons and stars with smooth angles

how to use ArcToPointPath to draw round-shaped corners.

RGB disks

the classical construction with the eight elementary colors.