摘要:
http://www.songho.ca/math/homogeneous/homogeneous.htmlhttp://blog.csdn.net/zigzagfist/archive/2008/09/10/2910812.aspxhttp://blog.csdn.net/Wu_Xiangwei/archive/2010/04/23/5519298.aspxhttp://en.wikipedia.org/wiki/Homogeneous_coordinates#cite_note-0http://en.wikipedia.org/wiki/Projective_geometry 阅读全文