Real checkVolumes ( RegionMesh const& mesh,
std::vector<bool>& elSign,
Switch& sw )
{
Real meas = 0.0;
Real lmeas = 0.0;
elSign.clear();
elSign.reserve ( mesh.numVolumes() );
typedef typename RegionMesh::elementShape_Type GeoShape;
switch ( GeoShape::S_shape )
{
case TETRA:
{
CurrentFE fe ( feTetraP1, geoLinearTetra, quadRuleTetra1pt );
for ( ID i = 0; i < mesh.numVolumes(); i++ )
{
fe.updateJac ( mesh.volume ( i ) );
lmeas = fe.measure();
meas += lmeas;
elSign.push_back ( lmeas > 0.0 );
}
}
break;
case HEXA:
{
CurrentFE fe ( feHexaQ1, geoBilinearHexa, quadRuleHexa1pt );
for ( ID i = 0; i < mesh.numVolumes(); i++ )
{
fe.updateJac ( mesh.volume ( i ) );
lmeas = fe.measure();
meas += lmeas;
elSign.push_back ( lmeas > 0.0 );
}
}
break;
default:
sw.create ( "SKIP_ORIENTATION_TEST", true );
return 0;
}
if ( std::find ( elSign.begin(), elSign.end(), false ) != elSign.end() )
{
sw.create ( "HAS_NEGATIVE_VOLUMES", true );
}
return meas;
}
void fixVolumes ( RegionMesh& mesh,
const std::vector<bool>& elSign,
Switch& sw )
{
for ( ID i = 0; i < mesh.numVolumes(); i++ )
{
if ( ! elSign[ i ] )
{
mesh.volume (i).reversePoints();
}
}
sw.create ("HAS_VOLUMES", true);
}