An quadtree-based map connecting coarse faces to their sub-patches. More...

#include <patchMap.h>

Public Types
typedef PatchTable::PatchHandle	Handle

Public Member Functions
	PatchMap (PatchTable const &patchTable)
	Constructor.

Handle const *	FindPatch (int patchFaceId, double u, double v) const
	Returns a handle to the sub-patch of the face at the given (u,v). Note that the patch face ID corresponds to potentially quadrangulated face indices and not the base face indices (see Far::PtexIndices for more details).

Detailed Description

An quadtree-based map connecting coarse faces to their sub-patches.

PatchTable::PatchArrays contain lists of patches that represent the limit surface of a mesh, sorted by their topological type. These arrays break the connection between coarse faces and their sub-patches.

The PatchMap provides a quad-tree based lookup structure that, given a singular parametric location, can efficiently return a handle to the sub-patch that contains this location.

Definition at line 49 of file patchMap.h.

Member Typedef Documentation

◆ Handle

typedef PatchTable::PatchHandle Handle

Definition at line 52 of file patchMap.h.

Constructor & Destructor Documentation

◆ PatchMap()

PatchMap ( PatchTable const & patchTable )

Constructor.

Parameters

patchTable A valid PatchTable

Member Function Documentation

◆ FindPatch()

PatchMap::Handle const * FindPatch	(	int	patchFaceId,
		double	u,
		double	v
	)		const

inline

Returns a handle to the sub-patch of the face at the given (u,v). Note that the patch face ID corresponds to potentially quadrangulated face indices and not the base face indices (see Far::PtexIndices for more details).

Returns a handle to the sub-patch of the face at the given (u,v).

Parameters

patchFaceId	The index of the patch (Ptex) face
u	Local u parameter
v	Local v parameter

Returns: A patch handle or 0 if the face is not supported (index out of bounds) or is tagged as a hole

Definition at line 193 of file patchMap.h.

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

opensubdiv/far/patchMap.h

Public Types