MR::MeshTriPoint Struct Reference

#include <MRMeshTriPoint.h>

Public Member Functions
	MeshTriPoint ()=default
	MeshTriPoint (NoInit)
	MeshTriPoint (EdgeId e, TriPointf bary)
	MeshTriPoint (const MeshEdgePoint &ep)
	MeshTriPoint (const MeshTopology &topology, VertId v)
template<typename T >
	MeshTriPoint (EdgeId e, const Vector3< T > &p, const Vector3< T > &v0, const Vector3< T > &v1, const Vector3< T > &v2)
	given a point coordinates computes its barycentric coordinates
MRMESH_API VertId	inVertex (const MeshTopology &topology) const
	returns valid vertex id if the point is in vertex, otherwise returns invalid id
bool	inVertex () const
	returns true if the point is in a vertex
MRMESH_API MeshEdgePoint	onEdge (const MeshTopology &topology) const
MRMESH_API bool	isBd (const MeshTopology &topology, const FaceBitSet *region=nullptr) const
	returns true if the point is in vertex or on edge, and that location is on the boundary of the region
MRMESH_API bool	fromTriangle (const MeshTopology &topology, FaceId f) const
	returns true if the point is inside or on the boundary of given triangular face
bool	valid () const
	consider this valid if the edge ID is valid
	operator bool () const
MRMESH_API MeshTriPoint	lnext (const MeshTopology &topology) const
	represents the same point relative to next edge in the same triangle
MRMESH_API MeshTriPoint	canonical (const MeshTopology &topology) const
	represents the same point relative to the topology.edgeWithLeft( topology.left( e ) )
MRMESH_API std::array< WeightedVertex, 3 >	getWeightedVerts (const MeshTopology &topology) const
	returns three weighted triangle's vertices with the sum of not-negative weights equal to 1, and the largest weight in the closest vertex
bool	operator== (const MeshTriPoint &rhs) const =default
	returns true if two points are equal including equal not-unique representation

Public Attributes
EdgeId	e
TriPointf	bary

Detailed Description

encodes a point inside a triangular mesh face using barycentric coordinates

Notations used below:
v0 - the value in org( e )
v1 - the value in dest( e )
v2 - the value in dest( next( e ) )

Constructor & Destructor Documentation

MeshTriPoint() [1/6]

MR::MeshTriPoint::MeshTriPoint ( )

nodiscarddefault

MeshTriPoint() [2/6]

MR::MeshTriPoint::MeshTriPoint ( NoInit )

inlinenodiscard

MeshTriPoint() [3/6]

MR::MeshTriPoint::MeshTriPoint ( EdgeId e, TriPointf bary )

inlinenodiscard

MeshTriPoint() [4/6]

MR::MeshTriPoint::MeshTriPoint ( const MeshEdgePoint & ep )

inlinenodiscard

MeshTriPoint() [5/6]

MR::MeshTriPoint::MeshTriPoint ( const MeshTopology & topology, VertId v )

inlinenodiscard

MeshTriPoint() [6/6]

template<typename T >

MR::MeshTriPoint::MeshTriPoint ( EdgeId e, const Vector3< T > & p, const Vector3< T > & v0, const Vector3< T > & v1, const Vector3< T > & v2 )

inlinenodiscard

given a point coordinates computes its barycentric coordinates

Member Function Documentation

canonical()

MRMESH_API MeshTriPoint MR::MeshTriPoint::canonical ( const MeshTopology & topology ) const

nodiscard

represents the same point relative to the topology.edgeWithLeft( topology.left( e ) )

fromTriangle()

MRMESH_API bool MR::MeshTriPoint::fromTriangle ( const MeshTopology & topology, FaceId f ) const

nodiscard

returns true if the point is inside or on the boundary of given triangular face

getWeightedVerts()

MRMESH_API std::array< WeightedVertex, 3 > MR::MeshTriPoint::getWeightedVerts ( const MeshTopology & topology ) const

nodiscard

returns three weighted triangle's vertices with the sum of not-negative weights equal to 1, and the largest weight in the closest vertex

inVertex() [1/2]

bool MR::MeshTriPoint::inVertex ( ) const

inlinenodiscard

returns true if the point is in a vertex

inVertex() [2/2]

MRMESH_API VertId MR::MeshTriPoint::inVertex ( const MeshTopology & topology ) const

nodiscard

returns valid vertex id if the point is in vertex, otherwise returns invalid id

isBd()

MRMESH_API bool MR::MeshTriPoint::isBd ( const MeshTopology & topology, const FaceBitSet * region = nullptr ) const

nodiscard

returns true if the point is in vertex or on edge, and that location is on the boundary of the region

lnext()

MRMESH_API MeshTriPoint MR::MeshTriPoint::lnext ( const MeshTopology & topology ) const

nodiscard

represents the same point relative to next edge in the same triangle

onEdge()

MRMESH_API MeshEdgePoint MR::MeshTriPoint::onEdge ( const MeshTopology & topology ) const

nodiscard

returns valid value if the point is on edge and topology.left(result.e) == topology.left(this->e), otherwise returns invalid MeshEdgePoint

operator bool()

MR::MeshTriPoint::operator bool ( ) const

inlineexplicitnodiscard

operator==()

bool MR::MeshTriPoint::operator== ( const MeshTriPoint & rhs ) const

nodiscarddefault

returns true if two points are equal including equal not-unique representation

valid()

bool MR::MeshTriPoint::valid ( ) const

inlinenodiscard

consider this valid if the edge ID is valid

Member Data Documentation

bary

TriPointf MR::MeshTriPoint::bary

barycentric coordinates

a in [0,1], a=0 => point is on next( e ) edge, a=1 => point is in dest( e ) b in [0,1], b=0 => point is on e edge, b=1 => point is in dest( next( e ) ) a+b in [0,1], a+b=0 => point is in org( e ), a+b=1 => point is on prev( e.sym() ) edge

e

EdgeId MR::MeshTriPoint::e

left face of this edge is considered

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The documentation for this struct was generated from the following file:

• MRMesh/MRMeshTriPoint.h