------------------------------------------------------------------------
| 78 | |
| 79 | //------------------------------------------------------------------------ |
| 80 | void vcgen_smooth_poly1::calculate(const vertex_dist& v0, |
| 81 | const vertex_dist& v1, |
| 82 | const vertex_dist& v2, |
| 83 | const vertex_dist& v3) |
| 84 | { |
| 85 | |
| 86 | double k1 = v0.dist / (v0.dist + v1.dist); |
| 87 | double k2 = v1.dist / (v1.dist + v2.dist); |
| 88 | |
| 89 | double xm1 = v0.x + (v2.x - v0.x) * k1; |
| 90 | double ym1 = v0.y + (v2.y - v0.y) * k1; |
| 91 | double xm2 = v1.x + (v3.x - v1.x) * k2; |
| 92 | double ym2 = v1.y + (v3.y - v1.y) * k2; |
| 93 | |
| 94 | m_ctrl1_x = v1.x + m_smooth_value * (v2.x - xm1); |
| 95 | m_ctrl1_y = v1.y + m_smooth_value * (v2.y - ym1); |
| 96 | m_ctrl2_x = v2.x + m_smooth_value * (v1.x - xm2); |
| 97 | m_ctrl2_y = v2.y + m_smooth_value * (v1.y - ym2); |
| 98 | } |
| 99 | |
| 100 | |
| 101 | //------------------------------------------------------------------------ |