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18 lines
No EOL
1.1 KiB
Text
18 lines
No EOL
1.1 KiB
Text
function eval_bezier_x(t, x0, y0, x1, y1, cx0, cy0, cx1, cy1) { INLINE return power(1 - t, 3) * x0 + 3 * power(1 - t, 2) * (t) * cx0 + 3 * power(t, 2) * (1 - t) * cx1 + power(t, 3) * x1; }
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function eval_bezier_y(t, x0, y0, x1, y1, cx0, cy0, cx1, cy1) { INLINE return power(1 - t, 3) * y0 + 3 * power(1 - t, 2) * (t) * cy0 + 3 * power(t, 2) * (1 - t) * cy1 + power(t, 3) * y1; }
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function eval_bezier_n(t, x0, x1, cx0, cx1) { INLINE return power(1 - t, 3) * x0 + 3 * power(1 - t, 2) * (t) * cx0 + 3 * power(t, 2) * (1 - t) * cx1 + power(t, 3) * x1; }
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function eval_bezier(t, x0, y0, x1, y1, cx0, cy0, cx1, cy1) {
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var xx = power(1 - t, 3) * x0 + 3 * power(1 - t, 2) * (t) * cx0 + 3 * power(t, 2) * (1 - t) * cx1 + power(t, 3) * x1;
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var yy = power(1 - t, 3) * y0 + 3 * power(1 - t, 2) * (t) * cy0 + 3 * power(t, 2) * (1 - t) * cy1 + power(t, 3) * y1;
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return [xx, yy];
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}
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function eval_quadratic(t, x0, y0, x1, y1, cx, cy) {
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var xx = power(1 - t, 2) * x0 + 2 * (1 - t) * (t) * cx + 2 * (t) * (1 - t) * cx + power(t, 2) * x1;
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var yy = power(1 - t, 2) * y0 + 2 * (1 - t) * (t) * cy + 2 * (t) * (1 - t) * cy + power(t, 2) * y1;
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return [xx, yy];
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} |