bool outputCoordinateSystem( const ScenePlug *scene, const ScenePlug::ScenePath &path, IECore::Renderer *renderer )
{
IECore::ConstCoordinateSystemPtr constCoordinateSystem = runTimeCast<const IECore::CoordinateSystem>( scene->object( path ) );
if( !constCoordinateSystem )
{
return false;
}
if( !visible( scene, path ) )
{
return false;
}
const M44f transform = scene->fullTransform( path );
std::string coordinateSystemName;
ScenePlug::pathToString( path, coordinateSystemName );
CoordinateSystemPtr coordinateSystem = constCoordinateSystem->copy();
coordinateSystem->setName( coordinateSystemName );
{
TransformBlock transformBlock( renderer );
renderer->concatTransform( transform );
coordinateSystem->render( renderer );
}
return true;
}
IECore::ObjectPtr FromMayaLocatorConverter::doConversion( const MDagPath &dagPath, IECore::ConstCompoundObjectPtr operands ) const
{
MStatus st;
bool hasLocator = dagPath.hasFn( MFn::kLocator, &st );
if (!st || !hasLocator)
{
throw Exception( "Could not find locator!" );
}
MObject locatorObj = dagPath.node();
if ( !locatorObj.hasFn( MFn::kLocator ) )
{
throw Exception( "Not a locator!" );
}
MFnDagNode fnLocator( locatorObj );
CoordinateSystemPtr result = new CoordinateSystem;
result->setName( IECore::convert<std::string>( fnLocator.name() ) );
/// obtain local position and scale from locator
Imath::V3f position(0), scale(0);
MPlug positionPlug = fnLocator.findPlug( "localPositionX", &st );
if ( !st )
throw Exception("Could not find 'localPositionX' plug!");
positionPlug.getValue(position[0]);
positionPlug = fnLocator.findPlug( "localPositionY", &st );
if ( !st )
throw Exception("Could not find 'localPositionY' plug!");
positionPlug.getValue(position[1]);
positionPlug = fnLocator.findPlug( "localPositionZ", &st );
if ( !st )
throw Exception("Could not find 'localPositionZ' plug!");
positionPlug.getValue(position[2]);
MPlug scalePlug = fnLocator.findPlug( "localScaleX", &st );
if ( !st )
throw Exception("Could not find 'localScaleX' plug!");
scalePlug.getValue(scale[0]);
scalePlug = fnLocator.findPlug( "localScaleY", &st );
if ( !st )
throw Exception("Could not find 'localScaleY' plug!");
scalePlug.getValue(scale[1]);
scalePlug = fnLocator.findPlug( "localScaleZ", &st );
if ( !st )
throw Exception("Could not find 'localScaleZ' plug!");
scalePlug.getValue(scale[2]);
Imath::M44f scaleM,translateM;
scaleM.scale(scale);
translateM.translate(position);
result->setTransform( new MatrixTransform( scaleM * translateM ) );
return result;
}