if (this->mFusion && mFusionActor->GetVisibility() && showFusionLegend) {
legend->SetLookupTable(this->GetFusionMapper()->GetLookupTable());
legend->UseOpacityOn();
if (this->mFusion && mFusionActor->GetVisibility() && showFusionLegend) {
legend->SetLookupTable(this->GetFusionMapper()->GetLookupTable());
legend->UseOpacityOn();