37 lines
933 B
C++
37 lines
933 B
C++
/*============================================================================
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*
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* Copyright (C) 1999-2000 Microsoft Corporation. All Rights Reserved.
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*
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* File: bezier.hpp
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* Content: Declarations for Beziers
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*
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****************************************************************************/
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#ifndef _BEZIER_HPP
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#define _BEZIER_HPP
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#include "bspline.hpp"
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class RDBezier : public RDBSpline
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{
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public:
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RDBezier(DWORD dwOrderU, DWORD dwOrderV);
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virtual double TexCoordU(double u) const;
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virtual double TexCoordV(double v) const;
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private:
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double m_lut[13][13];
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virtual double Basis(unsigned i, unsigned n, double t) const;
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virtual double BasisPrime(unsigned i, unsigned n, double t) const;
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unsigned factorial(unsigned k) const
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{
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_ASSERT(k < 13, "Factorial out of range");
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for(unsigned i = 1, t = 1; i <= k; t *= i++);
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return t;
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}
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};
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#endif // _BEZIER_HPP
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