Lines Matching refs:dy
60 double dy = y2-y1;
61 return sqrt(dx * dx + dy * dy);
68 double dy = y2-y1;
69 return dx * dx + dy * dy;
78 double dy = y2-y1;
79 double d = sqrt(dx * dx + dy * dy);
84 return ((x - x2) * dy - (y - y2) * dx) / d;
93 double dy = y2 - y1;
95 if(dx == 0 && dy == 0)
103 return (pdx * dx + pdy * dy) / (dx * dx + dy * dy);
137 double cx, double cy, double dx, double dy,
140 double num = (ay-cy) * (dx-cx) - (ax-cx) * (dy-cy);
141 double den = (bx-ax) * (dy-cy) - (by-ay) * (dx-cx);
183 double dy = y2 - y1;
184 double d = sqrt(dx*dx + dy*dy);
185 *x = thickness * dy / d;