# Ogre::EdgeData Class Reference
[Math]

This class contains the information required to describe the edge connectivity of a given set of vertices and indexes. More...

`#include <OgreEdgeListBuilder.h>`

Inheritance diagram for Ogre::EdgeData:
[legend]

List of all members.

## Classes

struct | Edge
| Edge data. More...
struct | EdgeGroup
| A group of edges sharing the same vertex data. More...
struct | Triangle
| Basic triangle structure. More...

## Public Types

typedef std::vector< Vector4, STLAllocator< Vector4, CategorisedAlignAllocPolicy < MEMCATEGORY_GEOMETRY > > > | TriangleFaceNormalList
typedef vector< char >::type | TriangleLightFacingList
typedef vector< Triangle >::type | TriangleList
typedef vector< Edge >::type | EdgeList
typedef vector< EdgeGroup >::type | EdgeGroupList

## Public Member Functions

void | updateTriangleLightFacing (const Vector4 &lightPos)
| Calculate the light facing state of the triangles in this edge list.
void | updateFaceNormals (size_t vertexSet, const HardwareVertexBufferSharedPtr &positionBuffer)
| Updates the face normals for this edge list based on (changed) position information, useful for animated objects.
void | log (Log *log)
void * | operator new (size_t sz, const char *file, int line, const char *func)
| operator new, with debug line info
void * | operator new (size_t sz)
void * | operator new (size_t sz, void *ptr)
| placement operator new
void * | operator new[] (size_t sz, const char *file, int line, const char *func)
| array operator new, with debug line info
void * | operator new[] (size_t sz)
void | operator delete (void *ptr)
void | operator delete (void *ptr, void *)
void | operator delete (void *ptr, const char *, int, const char *)
void | operator delete[] (void *ptr)
void | operator delete[] (void *ptr, const char *, int, const char *)

## Public Attributes

TriangleList | triangles
| Main triangles array, stores all triangles of this edge list.
TriangleFaceNormalList | triangleFaceNormals
| All triangle face normals.
TriangleLightFacingList | triangleLightFacings
| Triangle light facing states.
EdgeGroupList | edgeGroups
| All edge groups of this edge list.
bool | isClosed
| Flag indicate the mesh is manifold.

## Detailed Description

This class contains the information required to describe the edge connectivity of a given set of vertices and indexes.

Remarks:
  This information is built using the EdgeListBuilder class. Note that for a given mesh, which can be made up of multiple submeshes, there are separate edge lists for when

Definition at line 51 of file OgreEdgeListBuilder.h.

## Member Typedef Documentation

typedef vector<EdgeGroup>::type Ogre::EdgeData::EdgeGroupList

Definition at line 114 of file OgreEdgeListBuilder.h.

typedef vector<Edge>::type Ogre::EdgeData::EdgeList

Definition at line 93 of file OgreEdgeListBuilder.h.

typedef std::vector<Vector4, STLAllocator<Vector4, CategorisedAlignAllocPolicy<MEMCATEGORY_GEOMETRY> > > Ogre::EdgeData::TriangleFaceNormalList

Definition at line 85 of file OgreEdgeListBuilder.h.

typedef vector<char>::type Ogre::EdgeData::TriangleLightFacingList

Definition at line 90 of file OgreEdgeListBuilder.h.

typedef vector<Triangle>::type Ogre::EdgeData::TriangleList

Definition at line 92 of file OgreEdgeListBuilder.h.

## Member Function Documentation

void Ogre::EdgeData::log | ( | Log * | log | ) |

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete | ( | void * | ptr | ) | `[inherited]`

Definition at line 95 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete | ( | void * | ptr,
|  | void * |  |
| ) |  |  | `[inherited]`

Definition at line 101 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete | ( | void * | ptr,
|  | const char * | ,
|  | int | ,
|  | const char * |  |
| ) |  |  | `[inherited]`

Definition at line 107 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete[] | ( | void * | ptr | ) | `[inherited]`

Definition at line 112 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete[] | ( | void * | ptr,
|  | const char * | ,
|  | int | ,
|  | const char * |  |
| ) |  |  | `[inherited]`

Definition at line 118 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new | ( | size_t | sz,
|  | void * | ptr |
| ) |  |  | `[inherited]`

placement operator new

Definition at line 78 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new | ( | size_t | sz,
|  | const char * | file,
|  | int | line,
|  | const char * | func |
| ) |  |  | `[inherited]`

operator new, with debug line info

Definition at line 67 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new | ( | size_t | sz | ) | `[inherited]`

Definition at line 72 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new[] | ( | size_t | sz,
|  | const char * | file,
|  | int | line,
|  | const char * | func |
| ) |  |  | `[inherited]`

array operator new, with debug line info

Definition at line 85 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new[] | ( | size_t | sz | ) | `[inherited]`

Definition at line 90 of file OgreMemoryAllocatedObject.h.

void Ogre::EdgeData::updateFaceNormals | ( | size_t | vertexSet,
|  | const HardwareVertexBufferSharedPtr & | positionBuffer |
| ) |  |  |

Updates the face normals for this edge list based on (changed) position information, useful for animated objects.

Parameters:

  | vertexSet | The vertex set we are updating
  | positionBuffer | The updated position buffer, must contain ONLY xyz

void Ogre::EdgeData::updateTriangleLightFacing | ( | const Vector4 & | lightPos | ) |

Calculate the light facing state of the triangles in this edge list.

Remarks:
  This is normally the first stage of calculating a silhouette, i.e. establishing which tris are facing the light and which are facing away. This state is stored in the 'triangleLightFacings'.

Parameters:

  | lightPos | 4D position of the light in object space, note that for directional lights (which have no position), the w component is 0 and the x/y/z position are the direction.

## Member Data Documentation

EdgeGroupList Ogre::EdgeData::edgeGroups

All edge groups of this edge list.

Definition at line 125 of file OgreEdgeListBuilder.h.

bool Ogre::EdgeData::isClosed

Flag indicate the mesh is manifold.

Definition at line 127 of file OgreEdgeListBuilder.h.

TriangleFaceNormalList Ogre::EdgeData::triangleFaceNormals

All triangle face normals.

It should be 1:1 with triangles.

Definition at line 121 of file OgreEdgeListBuilder.h.

TriangleLightFacingList Ogre::EdgeData::triangleLightFacings

Triangle light facing states.

It should be 1:1 with triangles.

Definition at line 123 of file OgreEdgeListBuilder.h.

TriangleList Ogre::EdgeData::triangles

Main triangles array, stores all triangles of this edge list.

Note that triangles are grouping against edge group.

Definition at line 119 of file OgreEdgeListBuilder.h.

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

- OgreEdgeListBuilder.h

Copyright © 2008 Torus Knot Software Ltd
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Last modified Wed Nov 3 2010 19:24:54