导出方程

And now let us imagine how the ecstatic sounds of the Dionysiac rites penetrated ever more enticingly into that artificially restrained and discrete world of illusion, how this clamor expressed the whole outrageous gamut of nature—delight, grief, knowledge—even to the most piercing cry; and then let us imagine how the Apollonian artist with his thin, monotonous harp music have sounded beside the demoniac chant of the multitude!

现在，试想这个以假象和适度为基础，以艺术为堤防的境界，酒神祭佳节的销魂荡魄的狂欢之声侵入这境界了，在这些歌声中，我们听到一切率性而行的大喜、大悲、大智、大慧、甚至镂心刻骨的呼啸；那么，让我们想象一下：同这着了魔似的民歌相比，拨响着幽灵似的竖琴、唱着赞美诗的日神艺术家能有什么意义！

The exact path points on the TIN are computed according to the property that two intersecting lines' in-angle is equal to out-angle.

然后根据相交直线进入角度和离开角度相等的性质将距离对应的路径变换回三角网格上。