vcl::FaceConcept Concept Reference

The FaceConcept describes how a Face element that can be used for a FaceContainer should be organized. More...

#include <vclib/concepts/mesh/elements/face.h>

Concept definition

template<typename T>
concept vcl::FaceConcept = 
    ElementConcept<T> && RemoveRef<T>::ELEMENT_ID == ElemId::FACE &&
    face::HasBitFlags<T> && face::HasVertexReferences<T> &&
    (RemoveRef<T>::VERTEX_NUMBER < 0 || RemoveRef<T>::VERTEX_NUMBER >= 3) &&
    (!face::HasTriangleBitFlags<T> || RemoveRef<T>::VERTEX_NUMBER == 3) &&
    comp::SanityCheckAdjacentEdges<T> && comp::SanityCheckAdjacentFaces<T> &&
    comp::SanityCheckWedgeColors<T> && comp::SanityCheckWedgeTexCoords<T>

Detailed Description

The FaceConcept describes how a Face element that can be used for a FaceContainer should be organized.

The Face concept is satisfied for a class F if ALL the following sentences are true:

• The class F has the BitFlags component (or a derivate);
• The class F has either VertexPointers or VertexIndices components;
• The number of vertices of the VertexPointers/VertexIndices is -1 (dynamic size) or at least 3 (static size)
• If the class F has the TriangleBitFlags component (or a derivate), the number of vertices must be 3 (static)
• If the class F has the AdjacentEdges component (or a derivate), its size must be the same of the vertices;
• If the class F has the AdjacentFaces component (or a derivate), its size must be the same of the vertices;
• If the class F has the WedgeColors component (or a derivate), its size must be the same of the vertices;
• If the class F has the WedgeTexCoords component (or a derivate), its size must be the same of the vertices;