Euclid::HKS< Mesh > Class Template Reference

Heat kernel signature. More...

#include <HKS.h>

Public Types
using	FT = FT_t< Mesh >
using	Vec = Eigen::Matrix< FT, Eigen::Dynamic, 1 >
using	Mat = Eigen::Matrix< FT, Eigen::Dynamic, Eigen::Dynamic >

Public Member Functions
void	build (const Mesh &mesh, unsigned k=300)
	Build up the necessary computational components. More...
void	build (const Mesh &mesh, const Vec *eigenvalues, const Mat *eigenfunctions)
	Build up the necessary computational components. More...
template<typename Derived >
void	compute (Eigen::ArrayBase< Derived > &hks, unsigned tscales=100, float tmin=-1.0f, float tmax=-1.0f)
	Compute hks for all vertices. More...

Detailed Description

template<typename Mesh>
class Euclid::HKS< Mesh >

HKS is a intrinsic, multiscale, local shape descriptor.

Reference

Sun J., Ovsjanikov M., Guibas L.. A concise and provably informative multi-scale signature based on heat diffusion. Proceedings of the Symposium on Geometry Processing, 2009.

Member Function Documentation

template<typename Mesh >

void Euclid::HKS< Mesh >::build	(	const Mesh &	mesh,
		unsigned	k = 300
	)

Compute eigen decomposition of the mesh Laplacian. Note that the result number of eigenstructures might be smaller than what is requested in the because of numerical issues and some may not converge.

Parameters

mesh	The target mesh.
k	Number of eigenvalues/eigenvectors to use.

template<typename Mesh >

void Euclid::HKS< Mesh >::build	(	const Mesh &	mesh,
		const Vec *	eigenvalues,
		const Mat *	eigenfunctions
	)

From precomputed eigen decomposition.

Parameters

mesh	The target mesh.
eigenvalues	Precomputed eigenvalues.
eigenfunctions	Precomputed eigenfunctions.

template<typename Mesh >

template<typename Derived >

void Euclid::HKS< Mesh >::compute	(	Eigen::ArrayBase< Derived > &	hks,
		unsigned	tscales = 100,
		float	tmin = -1.0f,
		float	tmax = -1.0f
	)

Parameters

hks	Output heat kernel signatures
tscales	Number of time scales to use.
tmin	The minimum time value, default to -1 which will use the parameter setting described in the paper.
tmax	The maximum time value, default to -1 which will use the parameter setting described in the paper.

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The documentation for this class was generated from the following files:

• HKS.h
• HKS.cpp