| 149 | //------------------------------------------------------------------------------ |
| 150 | |
| 151 | void SetDx(TEdge &e) |
| 152 | { |
| 153 | if (e.ybot == e.ytop) e.dx = horizontal; |
| 154 | else e.dx = |
| 155 | static_cast<double>(e.xtop - e.xbot) / static_cast<double>(e.ytop - e.ybot); |
| 156 | } |
| 157 | //--------------------------------------------------------------------------- |
| 158 | |
| 159 | double GetDx(const IntPoint pt1, const IntPoint pt2) |