Signed distance field calculator, using linear time algorithm (in CPU). 4 passes are done to the image. Can be used to implement Valve s paper: "Improved Alpha-Tested Magnifi cation for Vector Textures and Special Effects" Done in C++ and SDL.
This handbook on control valve sizing is based on the useof nomenclature and sizing equations from ANSI/ISAStandard S75.01.01 and IEC Standard 60534-2-1.Additional explanations and supportive information areprovided beyond the content of the standar
