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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 | // 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 WM5APPRLINEFIT2_H
#define WM5APPRLINEFIT2_H
#include "Wm5MathematicsLIB.h"
#include "Wm5Line2.h"
namespace Wm5
{
// Least-squares fit of a line to (x,f(x)) data by using distance
// measurements in the y-direction. The resulting line is represented by
// y = A*x + B. The return value is 'false' if the 2x2 coefficient matrix
// in the linear system that defines A and B is (nearly) singular. In this
// case, A and B are returned as MAX_REAL.
template <typename Real> WM5_MATHEMATICS_ITEM
bool HeightLineFit2 (int numPoints, const Vector2<Real>* points,
Real& coeffA, Real& coeffB);
// Least-squares fit of a line to (x,y,z) data by using distance measurements
// orthogonal to the proposed line.
template <typename Real> WM5_MATHEMATICS_ITEM
Line2<Real> OrthogonalLineFit2 (int numPoints, const Vector2<Real>* points);
}
#endif
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