_segment 57 lib/gfxpoly/poly.h struct _segment*parent; _segment 58 lib/gfxpoly/poly.h struct _segment*leftchild; _segment 59 lib/gfxpoly/poly.h struct _segment*rightchild; _segment 61 lib/gfxpoly/poly.h struct _segment*left; _segment 62 lib/gfxpoly/poly.h struct _segment*right;