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/dports/graphics/tgif/tgif-QPL-4.2.5/
H A Darc.c1406 double y_intersect_DE=(double)0, slope_DE=(double)0; local
1422 y_intersect_DE = Ey;
1426 y_intersect_DE = Ey - Ex * slope_DE;
1467 Dy = slope_DE * Fx + y_intersect_DE;
1469 Dx = (Fy - y_intersect_DE) / slope_DE;
1475 Dx = (y_intersect_DF - y_intersect_DE) / (slope_DE - slope_DF);
1477 Dy = slope_DE * Dx + y_intersect_DE;