MEdge Class Reference

#include <meshadj.h>

Inheritance diagram for MEdge:

Public Member Functions
DllExport int	EdgeIndex (Face *faces, int side)
DllExport BOOL	Selected (Face *faces, BitArray &esel)
DllExport BOOL	Visible (Face *faces)
DllExport BOOL	Hidden (Face *faces)
DllExport Point3	Center (Point3 *verts)
DllExport BOOL	AFaceSelected (BitArray &fsel)
DllExport Point3	ButterFlySubdivide (Mesh *mesh, AdjFaceList *af, float tens)
DllExport UVVert	ButterFlyMapSubdivide (Mesh *mesh, AdjFaceList *af, float tens, int mp, bool &seam, UVVert &side2)
DWORD	OtherVert (DWORD vv)
DWORD	OtherFace (DWORD ff)

Public Attributes
DWORD	f [2]
DWORD	v [2]

Additional Inherited Members
Static Public Member Functions inherited from MaxHeapOperators
static UtilExport void *	operator new (size_t size)
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static UtilExport void *	operator new (size_t size, int block_type, const char *filename, int line)
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static UtilExport void *	operator new (size_t size, const std::nothrow_t &e, const char *filename, int line)
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static UtilExport void *	operator new (size_t size, unsigned long flags)
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static UtilExport void *	operator new (size_t size, const std::nothrow_t &e, unsigned long flags)
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static UtilExport void *	operator new[] (size_t size)
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static UtilExport void *	operator new[] (size_t size, const std::nothrow_t &e)
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static UtilExport void *	operator new[] (size_t size, const char *filename, int line)
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static UtilExport void *	operator new[] (size_t size, int block_type, const char *filename, int line)
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static UtilExport void *	operator new[] (size_t size, const std::nothrow_t &e, const char *filename, int line)
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static UtilExport void *	operator new[] (size_t size, unsigned long flags)
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static UtilExport void *	operator new[] (size_t size, const std::nothrow_t &e, unsigned long flags)
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static UtilExport void	operator delete (void *ptr, int block_type, const char *filename, int line)
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static UtilExport void	operator delete (void *ptr, unsigned long flags)
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static UtilExport void	operator delete[] (void *ptr)
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static UtilExport void	operator delete[] (void *ptr, const std::nothrow_t &e)
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static UtilExport void	operator delete[] (void *ptr, const char *filename, int line)
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static UtilExport void	operator delete[] (void *ptr, int block_type, const char *filename, int line)
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static UtilExport void	operator delete[] (void *ptr, const std::nothrow_t &e, const char *filename, int line)
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static UtilExport void	operator delete[] (void *ptr, unsigned long flags)
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static UtilExport void	operator delete[] (void *ptr, const std::nothrow_t &e, unsigned long flags)
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static UtilExport void *	operator new (size_t size, void *placement_ptr)
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static UtilExport void *	aligned_malloc (size_t size, size_t alignment)
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static UtilExport void *	aligned_realloc (void *ptr, size_t size, size_t alignment)
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static UtilExport void	aligned_free (void *ptr)
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Detailed Description

See also

Class AdjEdgeList, Class Mesh.

Description:

This class describes a single edge of a mesh object that is adjacent to a vertex. This is an edge that is coming out of the vertex. This is used in adjacency lists.

Data Members:

DWORD f[2];

The indices into the meshes face table of the two faces that share this edge.

DWORD v[2];

The indices into the meshes vertex table of the two vertices of this edge.

Member Function Documentation

EdgeIndex()

DllExport int EdgeIndex	(	Face *	faces,
		int	side
	)

Remarks

Returns the index of the edge in the face on side side. So: given a Mesh mesh and an MEdge *me, int eid = me->EdgeIndex (mesh.faces, 0); then mesh.faces[me->f[0]].v[eid] and mesh.faces[me->f[0]].v[(eid+1)%3] are the endpoints of the edge.

In particular, mesh.edgeSel[me->f[0]*3+eid] tells whether this edge is selected.

Parameters:

Face *faces

The list of faces from the mesh.

int side

Either 0 or 1, indicating whether we should find this result for the face on side 0 or on side 1.

Selected()

DllExport BOOL Selected	(	Face *	faces,
		BitArray &	esel
	)

Remarks

Returns TRUE if this edge is selected on either side; or FALSE if it is not selected on either.

Parameters:

Face *faces

The list of faces from the mesh.

BitArray &esel

The edge selection BitArray from the mesh.

Visible()

DllExport BOOL Visible

(

Face *

faces

)

Remarks

Returns TRUE if this edge is visible on either side; or FALSE if it is not visible on either.

Parameters:

Face *faces

The list of faces from the mesh.

Hidden()

DllExport BOOL Hidden

(

Face *

faces

)

Remarks

Returns TRUE if all the faces using this edge are hidden; otherwise FALSE.

Parameters:

Face *faces

The list of faces from the mesh.

Center()

DllExport Point3 Center

(

Point3 *

verts

)

Remarks

Returns the center of this edge.

Parameters:

Point3 *verts

The list of vertices from the mesh.

AFaceSelected()

DllExport BOOL AFaceSelected

(

BitArray &

fsel

)

Remarks

Returns TRUE if one (or both) of the faces sharing the edge is selected; otherwise FALSE.

Parameters:

BitArray &fsel

The face selection bit array.

ButterFlySubdivide()

DllExport Point3 ButterFlySubdivide	(	Mesh *	mesh,
		AdjFaceList *	af,
		float	tens
	)

Remarks

Returns a point suitable for use in standard tessellation.

Parameters:

Mesh *mesh

A pointer to the associated mesh.

AdjFaceList *af

A pointer to the associated AdjFaceList.

float tens

The tension parameter, as seen in the Tessellate modifier.

ButterFlyMapSubdivide()

DllExport UVVert ButterFlyMapSubdivide	(	Mesh *	mesh,
		AdjFaceList *	af,
		float	tens,
		int	mp,
		bool &	seam,
		UVVert &	side2
	)

Remarks

This method creates a map vertex for the middle of this edge using the Butterfly tessellation scheme. Designed to create map vertices to go with the vertex created by ButterFlySubdivide().

Parameters:

Mesh *mesh

A pointer to the associated mesh.

AdjFaceList *af

A pointer to the associated AdjFaceList.

float tens

The tension parameter, as seen in the Tessellate modifier.

int mp

The map channel we want to get a result for.

bool & seam

If this is set to true by the algorithm, then there's a mapping seam on this edge, and different map vertices should be used on each side.

UVVert & side2

If there's a seam, this contains the mapping result for the second side. The return value matches the mapping scheme on face f[0]; side2 matches the scheme on face f[1].

Returns

The desired mapping coordinates.

OtherVert()

DWORD OtherVert ( DWORD  vv )

inline

Remarks

Returns the index of the other vertex using this edge.

Parameters:

DWORD vv

The index of a vertex using the edge.

{ return (v[0] == vv) ? v[1] : v[0]; }

OtherFace()

DWORD OtherFace ( DWORD  ff )

inline

Remarks

Returns the index of the other face using this edge.

Parameters:

DWORD ff

The index of a face using this edge.

{ return (f[0] == ff) ? f[1] : f[0]; }

Member Data Documentation

f

DWORD f[2]

v

DWORD v[2]