code-spot

I use this code to illustrate many of the tutorials on this site, and the articles I write for Dev.Mag. Ideally, I would like to package the code so that it is the minimal necessary for the particular tutorial; however, a lot of the code is reused, so that it becomes difficult to maintain. Instead, I distribute it all together. That way, new updates and extensions can be found in one place.

The current version includes classes and functions for:

• easy-syntax 2D and 3D arrays (for example, you can use grid[1:20:2, 2:3:20] to access the pixels in every second column (starting with column 1 and ending before column 20) and every third row (starting from row 2 and ending before row 20) (docs);
• general image utility function (docs);
• perlin noise (docs, tutorial);
• poisson-disk sampling (docs, tutorial);
• texture generation algorithms (docs, tutorial);
• quadtrees (docs, tutorial part1 and part 2);
• classes for generating random points (1D and 2D) from arbitrary distributions (docs, tutorial);
• functions for blending between images (for smooth transitions between regions in seamless tile sets) [see blend_demo.py, tutorial];  and
• functions for image quilting (under construction).