UnrealEngine/Engine/Source/ThirdParty/Alembic/alembic-1.8.7/bin/AbcEcho/AbcBoundsEcho.cpp

//-*****************************************************************************
//
// Copyright (c) 2009-2014,
//  Sony Pictures Imageworks, Inc. and
//  Industrial Light & Magic, a division of Lucasfilm Entertainment Company Ltd.
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
// *       Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// *       Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// *       Neither the name of Sony Pictures Imageworks, nor
// Industrial Light & Magic nor the names of their contributors may be used
// to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
//-*****************************************************************************

#include <Alembic/AbcGeom/All.h>
#include <Alembic/AbcCoreFactory/All.h>

#include <ImathBoxAlgo.h>

#include <iostream>

//-*****************************************************************************
using namespace ::Alembic::AbcGeom;

static Box3d g_bounds;

//-*****************************************************************************
void accumXform( M44d &xf, IObject obj, chrono_t seconds )
{
    if ( IXform::matches( obj.getHeader() ) )
    {
        IXform x( obj );
        XformSample xs;
        ISampleSelector sel( seconds );
        x.getSchema().get( xs, sel );
        xf *= xs.getMatrix();
    }
}

//-*****************************************************************************
M44d getFinalMatrix( IObject &iObj, chrono_t seconds )
{
    M44d xf;
    xf.makeIdentity();

    IObject parent = iObj.getParent();

    while ( parent )
    {
        accumXform( xf, parent, seconds );
        parent = parent.getParent();
    }

    return xf;
}

//-*****************************************************************************
Box3d getBounds( IObject iObj, chrono_t seconds )
{
    Box3d bnds;
    bnds.makeEmpty();

    M44d xf = getFinalMatrix( iObj, seconds );
    IBox3dProperty boxProp;

    if ( ICurves::matches( iObj.getMetaData() ) )
    {
        ICurves curves( iObj );
        ICurvesSchema cs = curves.getSchema();
        boxProp = cs.getSelfBoundsProperty();
    }
    else if ( INuPatch::matches( iObj.getMetaData() ) )
    {
        INuPatch patch( iObj );
        INuPatchSchema ps = patch.getSchema();
        boxProp = ps.getSelfBoundsProperty();
    }
    else if ( IPolyMesh::matches( iObj.getMetaData() ) )
    {
        IPolyMesh mesh( iObj );
        IPolyMeshSchema ms = mesh.getSchema();
        boxProp = ms.getSelfBoundsProperty();
    }
    else if ( IPoints::matches( iObj.getMetaData() ) )
    {
        IPoints pts( iObj );
        IPointsSchema ps = pts.getSchema();
        boxProp = ps.getSelfBoundsProperty();
    }
    else if ( ISubD::matches( iObj.getMetaData() ) )
    {
        ISubD mesh( iObj );
        ISubDSchema ms = mesh.getSchema();
        boxProp = ms.getSelfBoundsProperty();
    }

    if ( boxProp.valid() )
    {
        ISampleSelector sel( seconds );
        bnds = boxProp.getValue( sel );
        bnds = Imath::transform( bnds, xf );
        g_bounds.extendBy( bnds );
    }

    g_bounds.extendBy( bnds );

    return bnds;
}

//-*****************************************************************************
void visitObject( IObject iObj, chrono_t seconds )
{
    std::string path = iObj.getFullName();

    const MetaData &md = iObj.getMetaData();

    if ( ICurves::matches( md ) ||
        INuPatch::matches( md ) ||
        IPoints::matches( md ) ||
        IPolyMesh::matches( md ) ||
        ISubDSchema::matches( md ) )
    {
        Box3d bnds = getBounds( iObj, seconds );
        std::cout << path << " " << bnds.min << " " << bnds.max << std::endl;
    }

    // now the child objects
    for ( size_t i = 0 ; i < iObj.getNumChildren() ; i++ )
    {
        visitObject( IObject( iObj, iObj.getChildHeader( i ).getName() ),
                     seconds );
    }
}

//-*****************************************************************************
//-*****************************************************************************
// DO IT.
//-*****************************************************************************
//-*****************************************************************************
int main( int argc, char *argv[] )
{
    if ( argc != 2 && argc != 3 )
    {
        std::cerr << "USAGE: " << argv[0] << " <AlembicArchive.abc> <seconds>"
                  << std::endl;
        exit( -1 );
    }

    chrono_t seconds = 0.0;
    if ( argc == 3 )
    {
        seconds = atof(argv[2]);
    }

    // Scoped.
    g_bounds.makeEmpty();
    {
        Alembic::AbcCoreFactory::IFactory factory;
        factory.setPolicy(ErrorHandler::kQuietNoopPolicy);
        IArchive archive = factory.getArchive( argv[1] );
        visitObject( archive.getTop(), seconds );
    }

    std::cout << "/" << " " << g_bounds.min << " " << g_bounds.max << std::endl;

    return 0;
}