Method pack

source/MRMesh/MRPointCloud.cpp:173–214

}

bool PointCloud::pack( VertMap * outNew2Old )
{
    MR_TIMER;
    const auto newSz = validPoints.count();
    if ( points.size() == newSz )
    {
        assert( normals.empty() || normals.size() == newSz );
        assert( validPoints.size() == newSz );
        return false;
    }

    if ( outNew2Old )
    {
        outNew2Old->clear();
        outNew2Old->reserve( newSz );
    }

    VertCoords packedPoints;
    packedPoints.reserve( newSz );
    VertNormals packedNormals;
    if ( !normals.empty() )
        packedNormals.reserve( newSz );

    for ( auto v : validPoints )
    {
        packedPoints.push_back( points[v] );
        if ( !normals.empty() )
            packedNormals.push_back( normals[v] );
        if ( outNew2Old )
            outNew2Old->push_back( v );
    }

    assert( packedPoints.size() == newSz );
    assert( packedNormals.empty() || packedNormals.size() == newSz );
    points = std::move( packedPoints );
    normals = std::move( packedNormals );
    validPoints.clear();
    validPoints.resize( newSz, true );

    invalidateCaches();
    return true;
}

std::vector<VertId> PointCloud::getLexicographicalOrder() const
{