Lines Matching refs:y0
65 inline void FindTriangleCentroid(double x0, double y0, double x1, double y1,
71 centY = (y0 + y1 + y2) / 3.0;
74 if (y0 == y2)
78 mass = fabs((y1 - y0) * (x2 - x0)); // Special case 1a
82 mass = fabs((y1 - y0) * (x1 - x0)); // Special case 1b
89 mass = fabs((x2 - x0) * (y2 - y0)); // Special case 2a
93 mass = fabs((x1 - x0) * (y2 - y0)); // Special case 2a
98 mass = fabs((x1 - x0) * (y2 - y0)); // Special case 3
102 // Calculate line equation from x0,y0 to x2,y2
104 double dy = y2 - y0;
108 double b1 = y0 - m1 * x0;
124 mass = fabs( (y1 - y0) * (x2 - x0) );
129 inline void FindQuadCentroid(double x0, double y0, double x1, double y1, double x2, double y2, double x3, double y3,
141 // The quad is split from x0,y0 to x2,y2
143 FindTriangleCentroid(x0, y0, x1, y1, x2, y2, mass1, cent1x, cent1y);
144 FindTriangleCentroid(x0, y0, x3, y3, x2, y2, mass2, cent2x, cent2y);
