Compute contour polygons using marching squares.
2D contour plots
General purpose level set extraction
Generic contour extraction library for surface nets/dual contouring
Extract a contour on a simplicial complex
Magic wand tool (fuzzy selection) by color
Goatsheep provides placement Solutions of rectangles in a specified container with a foreground object such that they are visually pleasing.
Magic Wand (selection tool by color differences) for Openlayers library
Fills holes in meshes, interpolates point clouds, adaptively contours octrees, voxelization and much more
a few point and polygon utils
CSS sharp corners
triangulates a fontpath using poly2tri