GeodesicEngineHeat< Scalar, Index > Class Template Reference

Computes surface geodesics using the heat method. More...

#include <lagrange/geodesic/GeodesicEngineHeat.h>

Inheritance diagram for GeodesicEngineHeat< Scalar, Index >:

Classes
struct	Impl

Public Types
using	Super = GeodesicEngine<Scalar, Index>
	Parent class type.
using	Mesh = typename Super::Mesh
	The mesh type.
Public Types inherited from GeodesicEngine< Scalar, Index >
using	Mesh = SurfaceMesh<Scalar, Index>
	The mesh type.

Public Member Functions
	GeodesicEngineHeat (Mesh &mesh)
	Precompute any data required for repeated geodesic distance computation.
	GeodesicEngineHeat (GeodesicEngineHeat &&)
GeodesicEngineHeat &	operator= (GeodesicEngineHeat &&)
	GeodesicEngineHeat (const GeodesicEngineHeat &)=delete
GeodesicEngineHeat &	operator= (const GeodesicEngineHeat &)=delete
SingleSourceGeodesicResult	single_source_geodesic (const SingleSourceGeodesicOptions &options) override
	Compute single source geodesic distances using the heat method.
Public Member Functions inherited from GeodesicEngine< Scalar, Index >
	GeodesicEngine (Mesh &mesh)
	Base class constructor.
virtual	~GeodesicEngine ()=default
	Base class destructor.
virtual Scalar	point_to_point_geodesic (const PointToPointGeodesicOptions &options)
	Computes the geodesic distance between two points on the mesh.

Protected Attributes
lagrange::value_ptr< Impl >	m_impl

Additional Inherited Members
Protected Member Functions inherited from GeodesicEngine< Scalar, Index >
const Mesh &	mesh () const
Mesh &	mesh ()

Detailed Description

template<typename Scalar, typename Index>
class lagrange::geodesic::GeodesicEngineHeat< Scalar, Index >

Computes surface geodesics using the heat method.

The heat method offers fast geodesic computation for all points on the mesh, at the expense of some accuracy compared to exact methods.

Template Parameters

Scalar	Mesh scalar type.
Index	Mesh index type.

Constructor & Destructor Documentation

GeodesicEngineHeat()

template<typename Scalar, typename Index>

GeodesicEngineHeat ( Mesh & mesh )

explicit

Precompute any data required for repeated geodesic distance computation.

Parameters

mesh	Reference to the input mesh.

Member Function Documentation

single_source_geodesic()

template<typename Scalar, typename Index>

SingleSourceGeodesicResult single_source_geodesic ( const SingleSourceGeodesicOptions & options )

overridevirtual

Compute single source geodesic distances using the heat method.

This function only computes a distance, and does not compute polar angles. It is based on the following paper:

• Crane, Keenan, Clarisse Weischedel, and Max Wardetzky. "Geodesics in heat: A new approach to computing distance based on heat flow." ACM Transactions on Graphics (TOG) 32.5 (2013): 1-11.

Parameters

options

The options for the computation.

Returns

The attribute ids of the geodesic distance (id for polar angle will be invalid).

Implements GeodesicEngine< Scalar, Index >.

---

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

• lagrange/geodesic/GeodesicEngineHeat.h
• GeodesicEngineHeat.cpp