这是一个基于openGl制作的一个手势识别程序(This is a 3D hand model developed mainly for vision-based hand motion analysis. The hand model is modeled as a set of rigid quadratic surfaces, and has 27 degrees-of-freedom (DoFs) including 6 DoFs of global motion and 21 DoFs

This code calculates the 3D medial axis skeleton of an arbitrary 3d binary volume

改代码为骨头3维绘制的一部分，后面的没找到。(these codes just can be used which describing a 3d skeleton mode.)