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/dports/cad/pcb/pcb-4.2.0/src/
H A Dfind.c937 double line1_dx, line1_dy, line2_dx, line2_dy, in LineLineIntersect() local
974 line1_dx = Line1->Point2.X - Line1->Point1.X; in LineLineIntersect()
983 if ((line1_dx == 0 && line1_dy == 0) in LineLineIntersect()
989 s = point1_dy * line1_dx - point1_dx * line1_dy; in LineLineIntersect()
992 r = line1_dx * line2_dy - line1_dy * line2_dx; in LineLineIntersect()