void Example1_CurvesIn()
{
IArchive archive( Alembic::AbcCoreHDF5::ReadArchive(), "curves1.abc" );
std::cout << "Reading: " << archive.getName() << std::endl;
std::cout <<"constructing curves" << std::endl;
ICurves myCurves( IObject( archive, kTop) , "reallly_long_curves_name");
std::cout << "getting schema" << std::endl;
ICurvesSchema &curves = myCurves.getSchema();
std::cout << "done getting schema" << std::endl;
// get the samples from the curves
ICurvesSchema::Sample curvesSample;
curves.get( curvesSample );
// test the bounding box
TESTING_ASSERT( curvesSample.getSelfBounds().min == V3d( -1.0, -1.0, -1.0 ) );
std::cout << "bounds max " << curvesSample.getSelfBounds().max << std::endl;
TESTING_ASSERT( curvesSample.getSelfBounds().max == V3d( 1.0, 1.0, 1.0 ) );
// test other attributes
TESTING_ASSERT( curvesSample.getPositions() -> size() == 12);
IFloatGeomParam::Sample widthSample;
curves.getWidthsParam().getExpanded( widthSample );
TESTING_ASSERT( widthSample.getVals()->size() == 12);
TESTING_ASSERT( curves.getWidthsParam().valid() );
TESTING_ASSERT( widthSample.getScope() == kVertexScope );
}
void Example2_CurvesIn()
{
IArchive archive( Alembic::AbcCoreOgawa::ReadArchive(), "curves2.abc" );
ICurves myCurves( IObject( archive, kTop) , "nurbsCurve");
ICurvesSchema &curves = myCurves.getSchema();
// get the samples from the curves
ICurvesSchema::Sample curvesSample;
curves.get( curvesSample );
// test the bounding box
TESTING_ASSERT( curvesSample.getSelfBounds().min == V3d( -1.0, -1.0, -1.0 ) );
TESTING_ASSERT( curvesSample.getSelfBounds().max == V3d( 1.0, 1.0, 1.0 ) );
// test other attributes
TESTING_ASSERT( curvesSample.getPositions() -> size() == 12);
TESTING_ASSERT( curvesSample.getType() == kVariableOrder );
TESTING_ASSERT( curvesSample.getWrap() == kNonPeriodic );
TESTING_ASSERT( curvesSample.getBasis() == kBezierBasis );
TESTING_ASSERT( ( *curvesSample.getOrders() )[0] == 4 );
TESTING_ASSERT( ( *curvesSample.getOrders() )[1] == 2 );
TESTING_ASSERT( curvesSample.getPositionWeights()->size() == 12 );
TESTING_ASSERT( curvesSample.getKnots()->size() == 18 );
IFloatGeomParam::Sample widthSample;
curves.getWidthsParam().getExpanded( widthSample );
TESTING_ASSERT( widthSample.getVals()->size() == 12);
TESTING_ASSERT( curves.getWidthsParam().valid() );
TESTING_ASSERT( widthSample.getScope() == kVertexScope );
IFloatArrayProperty knotsProp = curves.getKnotsProperty();
TESTING_ASSERT( knotsProp.getNumSamples() == 2 );
ArraySampleKey keyA, keyB;
knotsProp.getKey( keyA, 0 );
knotsProp.getKey( keyB, 1 );
TESTING_ASSERT( keyA == keyB );
}
void pointTestReadWrite()
{
{
OArchive archive( Alembic::AbcCoreOgawa::WriteArchive(),
"particlesOut2.abc" );
OObject topObj( archive, kTop );
OPoints ptsObj(topObj, "somePoints");
std::vector< V3f > positions;
std::vector< V3f > velocities;
std::vector< Alembic::Util::uint64_t > ids;
std::vector< Alembic::Util::float32_t > widths;
for (int i = 0; i < 100; ++i)
{
OFloatGeomParam::Sample widthSamp;
widthSamp.setScope(kVertexScope);
widthSamp.setVals(FloatArraySample(widths));
OPointsSchema::Sample psamp(V3fArraySample( positions ),
UInt64ArraySample( ids ), V3fArraySample( velocities ),
widthSamp );
ptsObj.getSchema().set(psamp);
positions.push_back(V3f(i, i, i));
velocities.push_back(V3f(100.0-i, 0, 0));
ids.push_back(i*10);
widths.push_back(0.1 + i * 0.05);
}
}
{
IArchive archive( Alembic::AbcCoreOgawa::ReadArchive(),
"particlesOut2.abc" );
IObject topObj = archive.getTop();
IPoints points( topObj, "somePoints" );
IPointsSchema& pointsSchema = points.getSchema();
IFloatGeomParam widthProp = pointsSchema.getWidthsParam();
TESTING_ASSERT( widthProp.getScope() == kVertexScope );
for ( size_t i = 0; i < 100; ++i )
{
IPointsSchema::Sample pointSamp;
pointsSchema.get(pointSamp, i);
IFloatGeomParam::Sample widthSamp;
widthProp.getExpanded(widthSamp, i);
TESTING_ASSERT( pointSamp.getPositions()->size() == i );
TESTING_ASSERT( pointSamp.getVelocities()->size() == i );
TESTING_ASSERT( pointSamp.getIds()->size() == i );
TESTING_ASSERT( widthSamp.getVals()->size() == i );
for ( size_t j = 0; j < i; ++j )
{
TESTING_ASSERT( (*pointSamp.getPositions())[j] ==
V3f(j, j, j) );
TESTING_ASSERT( (*pointSamp.getVelocities())[j] ==
V3f(100-j, 0, 0) );
TESTING_ASSERT( (*pointSamp.getIds())[j] == j * 10 );
TESTING_ASSERT( almostEqual( (*widthSamp.getVals())[j],
0.1 + j * 0.05, 7 ) );
}
}
}
}