//-*****************************************************************************
double XformOp::getZRotation() const
{
ABCA_ASSERT( m_type == kRotateOperation || m_type == kRotateZOperation,
"Meaningless to get rotation angle from non-rotation op." );
if ( m_type == kRotateZOperation )
{
return m_channels[0];
}
else
{
Abc::M44d m;
Abc::V3d rot;
m.makeIdentity();
m.setAxisAngle( this->getVector(), DegreesToRadians( m_channels[3] ) );
Imath::extractEulerXYZ( m, rot );
return RadiansToDegrees( rot[2] );
}
}
//-*****************************************************************************
Abc::M44d XformSample::getMatrix() const
{
Abc::M44d ret;
ret.makeIdentity();
for ( std::size_t i = 0 ; i < m_ops.size() ; ++i )
{
Abc::M44d m;
m.makeIdentity();
XformOp op = m_ops[i];
XformOperationType otype = op.getType();
if ( otype == kMatrixOperation )
{
for ( std::size_t j = 0 ; j < 4 ; ++j )
{
for ( std::size_t k = 0 ; k < 4 ; ++k )
{
m.x[j][k] = op.getChannelValue( ( 4 * j ) + k );
}
}
}
else if ( otype == kRotateXOperation )
{
m.setAxisAngle( Abc::V3d( 1.0, 0.0, 0.0 ),
DegreesToRadians( op.getChannelValue( 0 ) ) );
}
else if ( otype == kRotateYOperation )
{
m.setAxisAngle( Abc::V3d( 0.0, 1.0, 0.0 ),
DegreesToRadians( op.getChannelValue( 0 ) ) );
}
else if ( otype == kRotateZOperation )
{
m.setAxisAngle( Abc::V3d( 0.0, 0.0, 1.0 ),
DegreesToRadians( op.getChannelValue( 0 ) ) );
}
else
{
Abc::V3d vec( op.getChannelValue( 0 ),
op.getChannelValue( 1 ),
op.getChannelValue( 2 ) );
if ( otype == kScaleOperation )
{
m.setScale( vec );
}
else if ( otype == kTranslateOperation )
{
m.setTranslation( vec );
}
else if ( otype == kRotateOperation )
{
m.setAxisAngle( vec,
DegreesToRadians( op.getChannelValue( 3 ) ) );
}
}
ret = m * ret;
}
return ret;
}
//-*****************************************************************************
void xformOut()
{
OArchive archive( Alembic::AbcCoreOgawa::WriteArchive(), "Xform1.abc" );
OXform a( OObject( archive, kTop ), "a" );
OXform b( a, "b" );
OXform c( b, "c" );
OXform d( c, "d" );
OXform e( d, "e" );
OXform f( e, "f" );
OXform g( f, "g" );
XformOp transop( kTranslateOperation, kTranslateHint );
XformOp scaleop( kScaleOperation, kScaleHint );
XformOp matrixop( kMatrixOperation, kMatrixHint );
TESTING_ASSERT( a.getSchema().getNumSamples() == 0 );
OBox3dProperty childBounds = a.getSchema().getChildBoundsProperty();
XformSample asamp;
for ( size_t i = 0; i < 20; ++i )
{
asamp.addOp( transop, V3d( 12.0, i + 42.0, 20.0 ) );
if ( i >= 18 )
{
childBounds.set( Abc::Box3d( V3d( -1.0, -1.0, -1.0 ),
V3d( 1.0, 1.0, 1.0 ) ) );
}
else
{
childBounds.set( Abc::Box3d() );
}
a.getSchema().set( asamp );
}
XformSample bsamp;
for ( size_t i = 0 ; i < 20 ; ++i )
{
bsamp.setInheritsXforms( (bool)(i&1) );
b.getSchema().set( bsamp );
}
// for c we write nothing
XformSample dsamp;
dsamp.addOp( scaleop, V3d( 3.0, 6.0, 9.0 ) );
d.getSchema().set( dsamp );
XformSample esamp;
M44d identmat;
identmat.makeIdentity();
esamp.addOp( transop, V3d( 0.0, 0.0, 0.0 ) );
esamp.addOp( XformOp( kMatrixOperation, kMatrixHint ), identmat );
esamp.addOp( scaleop, V3d( 1.0, 1.0, 1.0 ) );
e.getSchema().set( esamp );
XformSample fsamp;
fsamp.addOp( transop, V3d( 3.0, -4.0, 5.0 ) );
f.getSchema().set( fsamp );
// this will cause the Xform's values property to be an ArrayProperty,
// since there will be 20 * 16 channels.
XformSample gsamp;
Abc::M44d gmatrix;
gmatrix.makeIdentity();
for ( size_t i = 0 ; i < 20 ; ++i )
{
gmatrix.x[0][1] = (double)i;
gsamp.addOp( matrixop, gmatrix );
}
g.getSchema().set( gsamp );
}
//-*****************************************************************************
void xformIn()
{
IArchive archive( Alembic::AbcCoreOgawa::ReadArchive(), "Xform1.abc" );
Abc::M44d identity;
XformSample xs;
IXform a( IObject( archive, kTop ), "a" );
std::cout << "'a' num samples: " << a.getSchema().getNumSamples() << std::endl;
TESTING_ASSERT( a.getSchema().getNumOps() == 1 );
TESTING_ASSERT( a.getSchema().getInheritsXforms() );
for ( index_t i = 0; i < 20; ++i )
{
XformSample xs;
a.getSchema().get( xs, Abc::ISampleSelector( i ) );
TESTING_ASSERT( xs.getNumOps() == 1 );
TESTING_ASSERT( xs[0].isTranslateOp() );
TESTING_ASSERT( xs[0].isYAnimated() == true );
TESTING_ASSERT( xs[0].isXAnimated() == false );
TESTING_ASSERT( xs[0].isZAnimated() == false );
TESTING_ASSERT( xs.getTranslation() == V3d( 12.0, i+42.0, 20.0 ) );
TESTING_ASSERT( xs.getMatrix() ==
Abc::M44d().setTranslation( V3d(12.0, i+42.0, 20.0)) );
}
IXform b( a, "b" );
b.getSchema().get( xs );
TESTING_ASSERT( b.getSchema().getTimeSampling()->getTimeSamplingType().isUniform() );
// the schema is not static, because set() was called 20 times on it.
TESTING_ASSERT( !b.getSchema().isConstant() );
TESTING_ASSERT( b.getSchema().getNumSamples() == 20 );
TESTING_ASSERT( xs.getNumOps() == 0 );
TESTING_ASSERT( b.getSchema().getNumOps() == 0 );
TESTING_ASSERT( xs.getMatrix() == identity );
for (size_t i = 0; i < 20; ++i)
{
AbcA::index_t j = i;
TESTING_ASSERT( b.getSchema().getInheritsXforms( ISampleSelector( j ) )
== (i&1) );
}
IXform c( b, "c" );
xs = c.getSchema().getValue();
TESTING_ASSERT( xs.getNumOps() == 0 );
TESTING_ASSERT( c.getSchema().getNumOps() == 0 );
TESTING_ASSERT( xs.getMatrix() == identity );
TESTING_ASSERT( c.getSchema().getInheritsXforms() );
TESTING_ASSERT( c.getSchema().isConstantIdentity() );
IXform d( c, "d" );
xs = d.getSchema().getValue();
TESTING_ASSERT( xs.getNumOps() == 1 );
TESTING_ASSERT( d.getSchema().getNumOps() == 1 );
TESTING_ASSERT( xs[0].isScaleOp() );
TESTING_ASSERT( ! ( xs[0].isXAnimated() || xs[0].isYAnimated()
|| xs[0].isZAnimated() ) );
TESTING_ASSERT( xs.getScale().equalWithAbsError( V3d( 3.0, 6.0, 9.0 ),
VAL_EPSILON ) );
TESTING_ASSERT( xs.getMatrix() ==
Abc::M44d().setScale( V3d(3.0, 6.0, 9.0)) );
TESTING_ASSERT( d.getSchema().getInheritsXforms() );
IXform e( d, "e" );
TESTING_ASSERT( e.getSchema().isConstantIdentity() );
TESTING_ASSERT( e.getSchema().isConstant() );
TESTING_ASSERT( e.getSchema().getNumOps() == 3 );
IXform f( e, "f" );
TESTING_ASSERT( f.getSchema().isConstant() ); // is constant
TESTING_ASSERT( ! f.getSchema().isConstantIdentity() ); // not identity
IXform g( f, "g" );
Abc::M44d gmatrix;
gmatrix.makeIdentity();
XformSample gsamp = g.getSchema().getValue();
TESTING_ASSERT( gsamp.getNumOps() == 20 );
TESTING_ASSERT( gsamp.getNumOpChannels() == 20 * 16 );
TESTING_ASSERT( g.getSchema().getNumSamples() == 1 );
TESTING_ASSERT( g.getSchema().isConstant() );
TESTING_ASSERT( !g.getSchema().isConstantIdentity() );
for ( size_t i = 0 ; i < 20 ; ++i )
{
TESTING_ASSERT( gsamp[i].getChannelValue( 1 ) == (double)i );
}
std::cout << "Tested all xforms in first test!" << std::endl;
}