MStatus geometrySurfaceConstraintCommand::connectObjectAndConstraint( MDGModifier& modifier )
{
MObject transform = transformObject();
if ( transform.isNull() )
{
MGlobal::displayError("Failed to get transformObject()");
return MS::kFailure;
}
MStatus status;
MFnTransform transformFn( transform );
MVector translate = transformFn.getTranslation(MSpace::kTransform,&status);
if (!status) { status.perror(" transformFn.getTranslation"); return status;}
MPlug translatePlug = transformFn.findPlug( "translate", &status );
if (!status) { status.perror(" transformFn.findPlug"); return status;}
if ( MPlug::kFreeToChange == translatePlug.isFreeToChange() )
{
MFnNumericData nd;
MObject translateData = nd.create( MFnNumericData::k3Double, &status );
status = nd.setData3Double( translate.x,translate.y,translate.z);
if (!status) { status.perror("nd.setData3Double"); return status;}
status = modifier.newPlugValue( translatePlug, translateData );
if (!status) { status.perror("modifier.newPlugValue"); return status;}
status = connectObjectAttribute(
MPxTransform::geometry,
geometrySurfaceConstraint::constraintGeometry, false );
if (!status) { status.perror("connectObjectAttribute"); return status;}
}
status = connectObjectAttribute(
MPxTransform::parentInverseMatrix,
geometrySurfaceConstraint::constraintParentInverseMatrix, true, true );
if (!status) { status.perror("connectObjectAttribute"); return status;}
return MS::kSuccess;
}
