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Default constructor, uninitialized curve.
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Constructor with four control points.
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Return point on curve with parameter t (from 0.0 to 1.0).
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Return distance to Bezier spline. But may just return bound if actual distance is larger. |
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Returns true if the Bezier curve is nearly identical to the line segment iV[0]..iV[3]. |
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Subdivide this Bezier curve in the middle.
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Approximate by a polygonal chain. result must be empty when calling this. |
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Return a tight bounding box (accurate to within 0.5).
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Convert a quadratic Bezier-spline to a cubic one. The quadratic Bezier-spline with control points p0, p1, p2 is identical to the cubic Bezier-spline with control points q0 = p0, q1 = (2p1 + p0)/3, q2 = (2p1 + p2)/3, q3 = p2. |
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Convert a uniform cubic B-spline to a series of Bezier splines. First and last control point are given multiplicity 3. Bezier splines are appended to result. |
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Convert a closed uniform cubic B-spline to a series of Bezier splines. Bezier splines are appended to result. |