50 lines
2.3 KiB
C++
50 lines
2.3 KiB
C++
// This code is in the public domain -- Ignacio Castaño <castano@gmail.com>
|
|
|
|
#pragma once
|
|
#ifndef NV_MATH_FITTING_H
|
|
#define NV_MATH_FITTING_H
|
|
|
|
#include "Vector.h"
|
|
#include "Plane.h"
|
|
|
|
namespace nv
|
|
{
|
|
namespace Fit
|
|
{
|
|
Vector3 computeCentroid(int n, const Vector3 * points);
|
|
Vector3 computeCentroid(int n, const Vector3 * points, const float * weights, const Vector3 & metric);
|
|
|
|
Vector4 computeCentroid(int n, const Vector4 * points);
|
|
Vector4 computeCentroid(int n, const Vector4 * points, const float * weights, const Vector4 & metric);
|
|
|
|
Vector3 computeCovariance(int n, const Vector3 * points, float * covariance);
|
|
Vector3 computeCovariance(int n, const Vector3 * points, const float * weights, const Vector3 & metric, float * covariance);
|
|
|
|
Vector4 computeCovariance(int n, const Vector4 * points, float * covariance);
|
|
Vector4 computeCovariance(int n, const Vector4 * points, const float * weights, const Vector4 & metric, float * covariance);
|
|
|
|
Vector3 computePrincipalComponent_PowerMethod(int n, const Vector3 * points);
|
|
Vector3 computePrincipalComponent_PowerMethod(int n, const Vector3 * points, const float * weights, const Vector3 & metric);
|
|
|
|
Vector3 computePrincipalComponent_EigenSolver(int n, const Vector3 * points);
|
|
Vector3 computePrincipalComponent_EigenSolver(int n, const Vector3 * points, const float * weights, const Vector3 & metric);
|
|
|
|
Vector4 computePrincipalComponent_EigenSolver(int n, const Vector4 * points);
|
|
Vector4 computePrincipalComponent_EigenSolver(int n, const Vector4 * points, const float * weights, const Vector4 & metric);
|
|
|
|
Vector3 computePrincipalComponent_SVD(int n, const Vector3 * points);
|
|
Vector4 computePrincipalComponent_SVD(int n, const Vector4 * points);
|
|
|
|
Plane bestPlane(int n, const Vector3 * points);
|
|
bool isPlanar(int n, const Vector3 * points, float epsilon = NV_EPSILON);
|
|
|
|
bool eigenSolveSymmetric3(const float matrix[6], float eigenValues[3], Vector3 eigenVectors[3]);
|
|
bool eigenSolveSymmetric4(const float matrix[10], float eigenValues[4], Vector4 eigenVectors[4]);
|
|
|
|
// Returns number of clusters [1-4].
|
|
int compute4Means(int n, const Vector3 * points, const float * weights, const Vector3 & metric, Vector3 * cluster);
|
|
}
|
|
|
|
} // nv namespace
|
|
|
|
#endif // NV_MATH_FITTING_H
|