diff options
Diffstat (limited to 'dxflinextrude.cc')
| -rw-r--r-- | dxflinextrude.cc | 66 |
1 files changed, 48 insertions, 18 deletions
diff --git a/dxflinextrude.cc b/dxflinextrude.cc index 7e0c2c6..7a5b588 100644 --- a/dxflinextrude.cc +++ b/dxflinextrude.cc @@ -144,26 +144,56 @@ static void add_slice(PolySet *ps, DxfData::Path *pt, double rot1, double rot2, double kx2 = pt->points[k]->x * cos(rot2*M_PI/180) + pt->points[k]->y * sin(rot2*M_PI/180); double ky2 = pt->points[k]->x * -sin(rot2*M_PI/180) + pt->points[k]->y * cos(rot2*M_PI/180); - ps->append_poly(); - if (pt->is_inner) { - ps->append_vertex(kx1, ky1, h1); - ps->append_vertex(jx1, jy1, h1); - ps->append_vertex(jx2, jy2, h2); - } else { - ps->insert_vertex(kx1, ky1, h1); - ps->insert_vertex(jx1, jy1, h1); - ps->insert_vertex(jx2, jy2, h2); + double dia1_len_sq = (jy1-ky2)*(jy1-ky2) + (jx1-kx2)*(jx1-kx2); + double dia2_len_sq = (jy2-ky1)*(jy2-ky1) + (jx2-kx1)*(jx2-kx1); + + if (dia1_len_sq > dia2_len_sq) + { + ps->append_poly(); + if (pt->is_inner) { + ps->append_vertex(kx1, ky1, h1); + ps->append_vertex(jx1, jy1, h1); + ps->append_vertex(jx2, jy2, h2); + } else { + ps->insert_vertex(kx1, ky1, h1); + ps->insert_vertex(jx1, jy1, h1); + ps->insert_vertex(jx2, jy2, h2); + } + + ps->append_poly(); + if (pt->is_inner) { + ps->append_vertex(kx2, ky2, h2); + ps->append_vertex(kx1, ky1, h1); + ps->append_vertex(jx2, jy2, h2); + } else { + ps->insert_vertex(kx2, ky2, h2); + ps->insert_vertex(kx1, ky1, h1); + ps->insert_vertex(jx2, jy2, h2); + } } + else + { + ps->append_poly(); + if (pt->is_inner) { + ps->append_vertex(kx1, ky1, h1); + ps->append_vertex(jx1, jy1, h1); + ps->append_vertex(kx2, ky2, h2); + } else { + ps->insert_vertex(kx1, ky1, h1); + ps->insert_vertex(jx1, jy1, h1); + ps->insert_vertex(kx2, ky2, h2); + } - ps->append_poly(); - if (pt->is_inner) { - ps->append_vertex(kx2, ky2, h2); - ps->append_vertex(kx1, ky1, h1); - ps->append_vertex(jx2, jy2, h2); - } else { - ps->insert_vertex(kx2, ky2, h2); - ps->insert_vertex(kx1, ky1, h1); - ps->insert_vertex(jx2, jy2, h2); + ps->append_poly(); + if (pt->is_inner) { + ps->append_vertex(jx2, jy2, h2); + ps->append_vertex(kx2, ky2, h2); + ps->append_vertex(jx1, jy1, h1); + } else { + ps->insert_vertex(jx2, jy2, h2); + ps->insert_vertex(kx2, ky2, h2); + ps->insert_vertex(jx1, jy1, h1); + } } } } |