Lines Matching refs:ellipse_y
2755 * ellipse_y w^2 w^2
2757 * compute the derivative with-respect-to ellipse_y and solve
2760 * (w^2 - h^2) ellipse_y^3 + h^4 y
2762 * h w ellipse_y^2 sqrt (h^2 - ellipse_y^2)
2765 * ellipse_y = ( ---------- ) ^ (1/3)
2823 double ellipse_y, x;
2827 ellipse_y = hookEllipseY(scan_y, bound, acc, left);
2828 if (boundedLe(ellipse_y, bound->ellipse)) {
2833 maxMin = ellipse_y * ellipse_y * ellipse_y * acc->h2mw2 -
2834 acc->h2 * scan_y * (3 * ellipse_y * ellipse_y - 2 * acc->h2);
2836 if (ellipse_y == 0)
2838 x = (acc->h2 * scan_y - ellipse_y * acc->h2mw2) *
2839 sqrt(acc->h2 - ellipse_y * ellipse_y) /
2840 (def->h * def->w * ellipse_y);