/usr/include/libwildmagic/Wm5BSplineReduction.h is in libwildmagic-dev 5.13-1ubuntu3.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | // Geometric Tools, LLC
// Copyright (c) 1998-2014
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
//
// File Version: 5.0.1 (2010/10/01)
#ifndef WM5BSPLINEREDUCTION_H
#define WM5BSPLINEREDUCTION_H
#include "Wm5MathematicsLIB.h"
#include "Wm5Vector2.h"
#include "Wm5Vector3.h"
namespace Wm5
{
template <typename Real, typename TVector>
class WM5_MATHEMATICS_ITEM BSplineReduction
{
public:
// The input quantity numCtrlPoints must be 2 or larger. The caller is
// responsible for deleting the input array ctrlPoints and the output array
// akCtrlOut. The degree degree of the input curve must satisfy the
// condition 1 <= degree <= numCtrlPoints-1. The degree of the output
// curve is the same as that of the input curve. The value fraction
// must be in [0,1]. If the fraction is 1, the output curve is identical
// to the input curve. If the fraction is too small to produce a valid
// number of control points, the output control quantity is chosen to be
// outNumCtrlPoints = degree+1.
BSplineReduction (int numCtrlPoints, const TVector* ctrlPoints,
int degree, Real fraction, int& outNumCtrlPoints,
TVector*& outCtrlPoints);
~BSplineReduction ();
private:
Real MinSupport (int basis, int i) const;
Real MaxSupport (int basis, int i) const;
Real F (int basis, int i, int j, Real t);
static Real Integrand (Real t, void* data);
int mDegree;
int mQuantity[2];
int mNumKnots[2]; // N+D+2
Real* mKnot[2];
// For the integration-based least-squares fitting.
int mBasis[2], mIndex[2];
};
typedef BSplineReduction<float,Vector2f> BSplineReduction2f;
typedef BSplineReduction<double,Vector2d> BSplineReduction2d;
typedef BSplineReduction<float,Vector3f> BSplineReduction3f;
typedef BSplineReduction<double,Vector3d> BSplineReduction3d;
}
#endif
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