Golden angle spirals.The arrangement of point seeds is based on Vogel's model for the pattern of florets in the head of a sunflower,
a form of Fermat's spiral involving the Golden Angle.
JavaScript application with SVG code output.
Voronoi tiling based on symmetric patterns of points.
The patterns are formed by combining a number of rectangular evenly-spaced arrays of points. JavaScript application with SVG code output.
Images of Voronoi diagrams in my Generative Art Library.