AbcExport/MayaTransformWriter.h

AbcExport/MayaTransformWriter.h
//-*****************************************************************************
//
// Copyright (c) 2009-2011,
// Sony Pictures Imageworks Inc. and
// Industrial Light & Magic, a division of Lucasfilm Entertainment Company Ltd.
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#ifndef _AlembicExport_MayaTransformWriter_h_
#define _AlembicExport_MayaTransformWriter_h_
#include "Foundation.h"
#include <Alembic/AbcGeom/OXform.h>
#include <Alembic/AbcGeom/XformOp.h>
#include "AttributesWriter.h"
// AnimChan contains what animated plugs to get as a double, and the helper
// info about what operation and which channel to set in mSample
struct AnimChan
{
MPlug plug;
// extra value to multiply the data off of the plug by, used to invert
// certain operations, and convert radians to degrees
double scale;
std::size_t opNum;
Alembic::Util::uint32_t channelNum;
};
// Writes an MFnTransform
class MayaTransformWriter
{
public:
MayaTransformWriter(Alembic::Abc::OObject & iParent, MDagPath & iDag,
Alembic::Util::uint32_t iTimeIndex, const JobArgs & iArgs);
MayaTransformWriter(MayaTransformWriter & iParent, MDagPath & iDag,
Alembic::Util::uint32_t iTimeIndex, const JobArgs & iArgs);
~MayaTransformWriter();
void write();
bool isAnimated() const;
Alembic::Abc::OObject getObject() {return mSchema.getObject();};
AttributesWriterPtr getAttrs() {return mAttrs;};
private:
Alembic::AbcGeom::OXformSchema mSchema;
AttributesWriterPtr mAttrs;
void pushTransformStack(const MFnTransform & iTrans, bool iForceStatic);
void pushTransformStack(const MFnIkJoint & iTrans, bool iForceStatic);
Alembic::AbcGeom::XformSample mSample;
std::vector < AnimChan > mAnimChanList;
MPlug mInheritsPlug;
size_t mJointOrientOpIndex[3];
size_t mRotateOpIndex[3];
size_t mRotateAxisOpIndex[3];
bool mFilterEulerRotations;
MEulerRotation mPrevJointOrientSolution;
MEulerRotation mPrevRotateSolution;
MEulerRotation mPrevRotateAxisSolution;
};
typedef Alembic::Util::shared_ptr < MayaTransformWriter >
MayaTransformWriterPtr;
#endif // _AlembicExport_MayaTransformWriter_h_