Modules
	Nodes
	The custom nodes are related classes that are used within the USD maya bridge.

	Commands
	A set of custom maya commands.

	File IO
	Classes that deal with the import/export of USD data into maya.

Classes
class	AL::usdmaya::Global
	This class wraps all of the global state/mechanisms needed to integrate USD and Maya. This mainly handles things such as onFileNew, preFileSave, etc. Hopefully the contents of the cpp file will be as minimal as possible. More...

class	AL::usdmaya::StageCache
	Maintains a cache of all active stages within maya. More...

class	AL::usdmaya::StageData
	This code is effectively copied from the pixar plugin. It's just used to pass the usd stage through the DG. More...

struct	AL::usdmaya::guid
	A type to store a UUID from a maya node. More...

struct	AL::usdmaya::guid_compare
	Less than comparison utility for sorting via 128bit guid. More...

struct	AL::usdmaya::MObjectMap
	A class that acts as a lookup table for dependency nodes. It works by storing a sorted map based on the uuid of each node. More...

Enumerations
enum	AL::usdmaya::UsdDataType : uint32_t { kBool, kUChar, kInt, kUInt, kInt64, kUInt64, kHalf, kFloat, kDouble, kString, kMatrix2d, kMatrix3d, kMatrix4d, kQuatd, kQuatf, kQuath, kVec2d, kVec2f, kVec2h, kVec2i, kVec3d, kVec3f, kVec3h, kVec3i, kVec4d, kVec4f, kVec4h, kVec4i, kToken, kAsset, kFrame4d, kUnknown }
	A generalized set of USD attribute types that enable switch statements (instead of the if/else approach you require when using SdfValueTypeNames).

enum	AL::usdmaya::TransformOperation : uint8_t { kTranslate = 0, kPivot, kRotatePivotTranslate, kRotatePivot, kRotate, kRotateAxis, kRotatePivotInv, kScalePivotTranslate, kScalePivot, kShear, kScale, kScalePivotInv, kPivotInv, kTransform, kUnknownOp }
	An enum describing the type of transformation found in a UsdGeomXformOp.

Functions
UsdDataType	AL::usdmaya::getAttributeType (const UsdAttribute &usdAttr)
	A method to quickly return the data type of a USD attribute. More...

UsdDataType	AL::usdmaya::getAttributeType (const SdfValueTypeName &typeName)
	A method to quickly return the data type of a USD attribute. More...

template<typename AFnPlugin >
MStatus	AL::usdmaya::registerPlugin (AFnPlugin &plugin)
	This method is basically the main initializePlugin routine. The reason for it being a template is simply a historical artifact. More...

template<typename AFnPlugin >
MStatus	AL::usdmaya::unregisterPlugin (AFnPlugin &plugin)
	This method is basically the main uninitializePlugin routine. The reason for it being a template is simply a historical artifact. More...

TransformOperation	AL::usdmaya::xformOpToEnum (const std::string &opName)
	Convert the textual name of a transformation operation into an easier to handle enum value. More...

bool	AL::usdmaya::matchesMayaProfile (std::vector< UsdGeomXformOp >::const_iterator it, std::vector< UsdGeomXformOp >::const_iterator end, std::vector< TransformOperation >::iterator output)
	a function to check to see if the incoming transform operations are compatible with the maya transform types. More...

void	AL::usdmaya::mapUsdPrimToMayaNode (const UsdPrim &usdPrim, const MObject &mayaObject, const MDagPath *const proxyShapeNode=nullptr)
	Captures the mapping of UsdPrim -> Maya Object and stores it into the session layer. usdMayaShapeNode is an optional argument, if it is passed and the passed in mayaObject's path couldnt be determined, then the corresponding maya path is determined using this AL::usdmaya::nodes::ProxyShape and the usdPrim path. It is to get around the delayed creation of nodes using a Modifier. More...

void	AL::usdmaya::matrixToSRT (GfMatrix4d &value, double S[3], MEulerRotation &R, double T[3])
	convert a 4x4 matrix to an SRT transformation. Assumes that there is no shearing. More...

MString	AL::usdmaya::convert (const std::string &str)
	convert string types More...

std::string	AL::usdmaya::convert (const MString &str)
	convert string types More...

Detailed Description

Function Documentation

MString AL::usdmaya::convert ( const std::string & str )

inline

convert string types

Parameters

str	the std::string to convert to an MString

Returns: the MString

std::string AL::usdmaya::convert ( const MString & str )

inline

convert string types

Parameters

str	the MString to convert to a std::string

Returns: the std::string

UsdDataType AL::usdmaya::getAttributeType ( const UsdAttribute & usdAttr )

A method to quickly return the data type of a USD attribute.

Parameters

usdAttr the usd attribute to query

Returns: the attribute type

UsdDataType AL::usdmaya::getAttributeType ( const SdfValueTypeName & typeName )

A method to quickly return the data type of a USD attribute.

Parameters

typeName the type name of the usd attribute to query

Returns: the attribute type

void AL::usdmaya::mapUsdPrimToMayaNode	(	const UsdPrim &	usdPrim,
		const MObject &	mayaObject,
		const MDagPath *const	proxyShapeNode = `nullptr`
	)

Captures the mapping of UsdPrim -> Maya Object and stores it into the session layer. usdMayaShapeNode is an optional argument, if it is passed and the passed in mayaObject's path couldnt be determined, then the corresponding maya path is determined using this AL::usdmaya::nodes::ProxyShape and the usdPrim path. It is to get around the delayed creation of nodes using a Modifier.

Parameters

usdPrim	the prim to map to the mayaObject
mayaObject	the maya node to map
proxyShapeNode	pointer to the daga path for the proxy shape

bool AL::usdmaya::matchesMayaProfile	(	std::vector< UsdGeomXformOp >::const_iterator	it,
		std::vector< UsdGeomXformOp >::const_iterator	end,
		std::vector< TransformOperation >::iterator	output
	)

a function to check to see if the incoming transform operations are compatible with the maya transform types.

Parameters

it	the start of the transform operations
end	the end of the transform operations
output	a simpler set of sorted enums, which are used later as a quicker way to index the transform ops.

Returns: true if the type is compatible with maya

void AL::usdmaya::matrixToSRT	(	GfMatrix4d &	value,
		double	S[3],
		MEulerRotation &	R,
		double	T[3]
	)

convert a 4x4 matrix to an SRT transformation. Assumes that there is no shearing.

Parameters

value	the 4x4 matrix to extract the TRS values from
S	the returned scale value
R	the returned euler rotation values
T	the returned translation values

template<typename AFnPlugin >

MStatus AL::usdmaya::registerPlugin ( AFnPlugin & plugin )

This method is basically the main initializePlugin routine. The reason for it being a template is simply a historical artifact.

Parameters

plugin the MFnPlugin

Todo:: Move this code into initializePlugin

template<typename AFnPlugin >

MStatus AL::usdmaya::unregisterPlugin ( AFnPlugin & plugin )

This method is basically the main uninitializePlugin routine. The reason for it being a template is simply a historical artifact.

Parameters

plugin the MFnPlugin

Todo:: Move this code into uninitializePlugin

TransformOperation AL::usdmaya::xformOpToEnum ( const std::string & opName )

Convert the textual name of a transformation operation into an easier to handle enum value.

Parameters

opName

Returns: the transform op enum

Modules

Classes

Enumerations

Functions

Detailed Description

Function Documentation