Lines Matching refs:y1
551 line_adaptor(double x1, double y1, double x2, double y2) :
555 m_coord[1] = y1;
560 void init(double x1, double y1, double x2, double y2)
563 m_coord[1] = y1;
713 // between x1 and x2, or between y1 and y2 respectively
716 void flip_y(double y1, double y2);
1186 double x1, y1, x2, y2;
1187 m_vertices.vertex(start + i, &x1, &y1);
1189 area += x1 * y2 - y1 * x2;
1335 void path_base<VC>::flip_y(double y1, double y2)
1344 m_vertices.modify_vertex(i, x, y2 - y + y1);