While you draw, Tess will maintain the symmetry group you have chosen- 24 rosette (circular), all 7 frieze (strip), and all 17 wallpaper groups are included. Illustrations may be printed from Tess or exported to GIF, JIF, PCX, DXF, SVG, and other formats.
Free download Tess (Mac) - tess-ppc.sit.hqx