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Lines Matching defs:dy1

114 icvIntersectLines( double x1, double dx1, double y1, double dy1,
117     double d = dx1 * dy2 - dx2 * dy1;
122         *t2 = ((x2 - x1) * dy1 - (y2 - y1) * dx1) / d;
295                 double dx, dy, dx1, dy1, dx2, dy2, dist_num, dist_denom = 1;
309                 dx1 = pt.x - v0.x; dy1 = pt.y - v0.y;
312                 if( dx1*dx + dy1*dy <= 0 )
313                     dist_num = dx1*dx1 + dy1*dy1;
318                     dist_num = (dy1*dx - dx1*dy);
336                 dist_num = dy1*dx - dx1*dy;