Mesh function set for dependency node data. More...

#include <MFnMeshData.h>

Inheritance diagram for MFnMeshData:

Public Member Functions
virtual MFn::Type	type () const
	Function set type. More...

virtual	~MFnMeshData ()
	Destructor.

	MFnMeshData ()
	Default constructor.

	MFnMeshData (MObject &object, MStatus *ReturnStatus=NULL)
	Constructor. More...

MObject	create (MStatus *ReturnStatus=NULL)
	Create a new MObject, attach it to this instance and initialize it with a data block capable of holding a Mesh. More...

	MFnMeshData (const MObject &object, MStatus *ReturnStatus=NULL)
	Constructor. More...

Public Member Functions inherited from MFnGeometryData
virtual	~MFnGeometryData ()
	Destructor.

	MFnGeometryData ()
	Default constructor.

	MFnGeometryData (MObject &object, MStatus *ReturnStatus=NULL)
	Constructor. More...

MStatus	setMatrix (const MMatrix &)
	Reset the matrix the the specified matrix and set the identity flag if the new matrix is the identity. More...

MStatus	getMatrix (MMatrix &) const
	Get the matrix associated with the geometry data. More...

bool	matrixIsIdentity (MStatus *ReturnStatus=NULL) const
	Return true if the matrix is the identity. More...

bool	matrixIsNotIdentity (MStatus *ReturnStatus=NULL) const
	Return true if the matrix is different from identity. More...

bool	hasObjectGroup (unsigned int id, MStatus *ReturnStatus=NULL) const
	This method returns true if an object group with the given id is contained in the data. More...

MStatus	addObjectGroup (unsigned int)
	This method adds an object group with the given id to the object. More...

MStatus	removeObjectGroup (unsigned int)
	This method removes an object group with the given id from the object. More...

MStatus	changeObjectGroupId (unsigned int, unsigned int)
	This method changes the id of the object group with the given id to the new id. More...

unsigned int	objectGroupCount (MStatus *ReturnStatus=NULL) const
	This method returns the number of object groups contained by the object. More...

unsigned int	objectGroup (unsigned int index, MStatus *ReturnStatus=NULL) const
	This method returns the id of the i'th object group contained by the object. More...

MFn::Type	objectGroupType (unsigned int, MStatus *ReturnStatus=NULL) const
	This method returns the type of the component that the object group with the given id contains. More...

MObject	objectGroupComponent (unsigned int, MStatus *ReturnStatus=NULL) const
	This method returns a component which contains the members of the object group with the given id. More...

MStatus	setObjectGroupComponent (unsigned int, MObject &)
	This method sets the members of the object group with the given id to be only those in the given component. More...

MStatus	addObjectGroupComponent (unsigned int, MObject &)
	This method adds the members of the given component to the object group with the given id. More...

MStatus	removeObjectGroupComponent (unsigned int, MObject &)
	This method removes the members of the given component from the object group with the given id. More...

MStatus	copyObjectGroups (MObject &inGeom)
	Copies the object groups from the given geometry data object. More...

	MFnGeometryData (const MObject &object, MStatus *ReturnStatus=NULL)
	Constructor. More...

Public Member Functions inherited from MFnData
virtual	~MFnData ()
	Destructor.

	MFnData (MObject &object, MStatus *ReturnStatus=NULL)
	Constructor. More...

	MFnData ()
	Default class constructor.

	MFnData (const MObject &object, MStatus *ReturnStatus=NULL)
	Constructor. More...

Public Member Functions inherited from MFnBase
virtual	~MFnBase ()
	Class Destructor. More...

bool	hasObj (MFn::Type) const
	Determines whether or not the Function Set is compatible with the specified Maya Object within the API RTTI system. More...

bool	hasObj (const MObject &) const
	Determines whether or not the Function Set is compatible with the specified Maya Object within the API RTTI system. More...

MObject	object (MStatus *ReturnStatus=NULL) const
	Returns the MObject that is attached to the Function Set. More...

virtual MStatus	setObject (MObject &object)
	Attaches the Function Set to the specified Maya Object. More...

virtual MStatus	setObject (const MObject &object)
	NO SCRIPT SUPPORT. More...

Static Public Member Functions
static const char *	className ()
	Returns the name of this class. More...

Static Public Member Functions inherited from MFnGeometryData
static const char *	className ()
	Returns the name of this class. More...

Static Public Member Functions inherited from MFnData
static const char *	className ()
	Returns the name of this class. More...

Static Public Member Functions inherited from MFnBase
static const char *	className ()
	Returns the name of this class. More...

static const char *	typeString (MFn::Type)
	Returns the type string for a given type. More...

static bool	isValid (MFn::Type)
	Returns true if type is in the range of valid types. More...

Additional Inherited Members
Public Types inherited from MFnData
enum	Type { kInvalid, kNumeric, kPlugin, kPluginGeometry, kString, kMatrix, kStringArray, kDoubleArray, kFloatArray, kIntArray, kPointArray, kVectorArray, kMatrixArray, kComponentList, kMesh, kLattice, kNurbsCurve, kNurbsSurface, kSphere, kDynArrayAttrs, kDynSweptGeometry, kSubdSurface, kNObject, kNId, kAny, kLast }
	Types of dependency graph data. More...

Detailed Description

Mesh function set for dependency node data.

MFnMeshData allows the creation and manipulation of Mesh data objects for use in the dependency graph.

If a user written dependency node either accepts or produces Meshes, then this class is used to create data blocks into which Meshes can be constructed before being passed to other dependency graph nodes. The MDataHandle::type method will return kMesh when data of this type is present.

If a node is receiving a Mesh via an input attribute, the asMesh method of MDataHandle can be used to access that input Mesh.

If a node is to create a Mesh and send it via an output attribute, a new MFnMeshData must be instantiated and then the create method called to build the actual data block as an MObject. This MObject should be passed to the MFnMesh::create method as the parentOrOwner parameter so that the Mesh will be constructed inside the data block. The MDataHandle::set routine is then used to pass the data block down the connection.

Examples:: AbcImport/AlembicNode.cpp, animCubeNode/animCubeNode.cpp, blindDataShader/blindDataMesh.cpp, gpuCache/CacheReaderAlembic.cpp, gpuCache/CacheReaderAlembic.h, gpuCache/gpuCacheCmd.cpp, polyPrimitiveCmd/polyPrimitiveCmd.cpp, shellNode/shellNode.cpp, and testNobjectNode/testNobjectNode.cpp.

Constructor & Destructor Documentation

MFnMeshData	(	MObject &	object,
		MStatus *	ReturnStatus = `NULL`
	)

Constructor.

Class constructor that initializes the function set to the given MObject.

Parameters

[in]	object	The MObject to attach the function set to
[out]	ReturnStatus	the return status

Status Codes:

MS::kSuccess if the function set is successfully attached
MS::kInvalidParameter if the MObject does not represent a valid Maya object or if the function set is not allowed to attach to this MObject

MFnMeshData	(	const MObject &	object,
		MStatus *	ReturnStatus = `NULL`
	)

Constructor.

Class constructor that initializes the function set to the given MObject.

Parameters

[in]	object	The MObject to attach the function set to
[out]	ReturnStatus	the return status

Status Codes:

MS::kSuccess if the function set is successfully attached
MS::kInvalidParameter if the MObject does not represent a valid Maya object or if the function set is not allowed to attach to this MObject

Member Function Documentation

MFn::Type type ( ) const

virtual

Function set type.

Return the class type : MFn::kMeshData.

Returns: the class type.

Reimplemented from MFnGeometryData.

OPENMAYA_MAJOR_NAMESPACE_OPEN const char * className ( )

static

Returns the name of this class.

Return the class name : "MFnMeshData".

Returns: Name of this class.

MObject create ( MStatus * ReturnStatus = NULL )

Create a new MObject, attach it to this instance and initialize it with a data block capable of holding a Mesh.

Parameters

[out] ReturnStatus kSuccess

Returns: The new MObject

Examples:: AbcImport/AlembicNode.cpp, animCubeNode/animCubeNode.cpp, blindDataShader/blindDataMesh.cpp, gpuCache/CacheReaderAlembic.cpp, gpuCache/gpuCacheCmd.cpp, polyPrimitiveCmd/polyPrimitiveCmd.cpp, shellNode/shellNode.cpp, and testNobjectNode/testNobjectNode.cpp.

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

MFnMeshData.h
MFnMeshData.cpp

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation