IRdEdgeNeighborsStream Interface Reference

Inherits IDispatch.

List of all members.

Public Member Functions
HRESULT	GetNumTripleIndices ([out, retval] RtDWORD *dwNumTripleIndices)
HRESULT	SetNumTripleIndices ([in] RtDWORD dwNumTripleIndices)
Properties
RtUlong *	i ([in] RtDWORD dwIndex) [get]
RtUlong	i ([in] RtDWORD dwIndex) [set]
RtUlong *	j ([in] RtDWORD dwIndex) [get]
RtUlong	j ([in] RtDWORD dwIndex) [set]
RtUlong *	k ([in] RtDWORD dwIndex) [get]
RtUlong	k ([in] RtDWORD dwIndex) [set]

---

Detailed Description

IRdEdgeNeighborsStream is a temporary stream, that holds topology information for mesh.

• For each triangle edge it stores 3*triangle+edge of neighbor triangle.
• For non-2manifold meshes, neighbor with biggest face angle is used.

Remarks:

In graphics 2manifold means that each edge has exactly 2 faces.

This is a temporary stream, that should be used stored inside system scratch-pad instead of mesh streams. If you want to add stream to mesh, it can be stored in Triangle stream group.

Stream is identified by STREAMID_TRIANGLES_EDGENEIGHS id.

---

Member Function Documentation

HRESULT IRdEdgeNeighborsStream::GetNumTripleIndices

(

[out, retval] RtDWORD *

dwNumTripleIndices

)

Get number of triple indices.

• Each triple index represents a triangle (3 vertices).

Returns:

dwNumTripleIndices [out,retval] Number of triple indices found.

standard HRESULT processing can be applied to returned value.

HRESULT IRdEdgeNeighborsStream::SetNumTripleIndices

(

[in] RtDWORD

dwNumTripleIndices

)

Set number of triple indices.

Parameters:

dwNumTripleIndices

[in] Set number of triple indices.

Returns:

standard HRESULT processing can be applied to returned value

---

Property Documentation

RtUlong * IRdEdgeNeighborsStream::i([in] RtDWORD dwIndex) [get]

Get neighbor of dwIndex-th triangle-edge sharing edge 1-2.

Parameters:

dwIndex

[in] Triangle index.

Returns:

pVal [out,retval] Neighboring triangle index.

standard HRESULT processing can be applied to returned value.

RtUlong IRdEdgeNeighborsStream::i([in] RtDWORD dwIndex) [set]

Set neighbor of dwIndex-th triangle-edge sharing edge 1-2.

Parameters:

	dwIndex	[in] Triangle index.
	newVal	[in] Neighboring triangle-edge index.

Returns:

standard HRESULT processing can be applied to returned value

RtUlong * IRdEdgeNeighborsStream::j([in] RtDWORD dwIndex) [get]

Get neighbor of dwIndex-th triangleedge sharing edge 2-3.

Parameters:

dwIndex

[in] Triangle index.

Returns:

pVal [out, retval] Neighboring triangle-edge index.

standard HRESULT processing can be applied to returned value

RtUlong IRdEdgeNeighborsStream::j([in] RtDWORD dwIndex) [set]

Set neighbor of dwIndex-th triangleedge sharing edge 2-3.

Parameters:

	dwIndex	[in] Triangle index.
	newVal	[in] Neighboring triangle-edge index.

Returns:

standard HRESULT processing can be applied to returned value.

RtUlong* IRdEdgeNeighborsStream::k([in] RtDWORD dwIndex) [get]

Get neighbor of dwIndex-th triangle-edge sharing edge 3-1.

Parameters:

	dwIndex	[in] Triangle index.
	pVal	[out, retval] Neighboring triangle-edge index.

Returns:

standard HRESULT processing can be applied to returned value.

RtUlong IRdEdgeNeighborsStream::k([in] RtDWORD dwIndex) [set]

Set neighbor of dwIndex-th triangle-edge sharing edge 3-1.

Parameters:

	dwIndex	[in] Triangle index.
	newVal	[in] Neighboring triangle-edge index.

Returns:

standard HRESULT processing can be applied to returned value.