Use same active scalars as parent if possible

For the internal pipeline, try to set the child data sources' active scalars to match that of the parent if possible. This prevents the active scalars changing due to operations that produce child data sources. Signed-off-by: Patrick Avery <[email protected]>
OpenChemistry · Mar 10, 2020 · b5899d9 · b5899d9
1 parent dd74dcb
commit b5899d9
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/tomviz/operators/OperatorPython.cxx b/tomviz/operators/OperatorPython.cxx
@@ -657,6 +657,11 @@ void OperatorPython::updateChildDataSource(vtkSmartPointer<vtkDataObject> data)
   if (dataSource->hasTiltAngles())
     dataSource->setType(DataSource::TiltSeries);
 
+  // Keep the same active scalars that the parent had if possible
+  QString prevActiveScalars = this->dataSource()->activeScalars();
+  if (dataSource->listScalars().contains(prevActiveScalars))
+    dataSource->setActiveScalars(prevActiveScalars);
+
   emit dataSource->dataChanged();
   emit dataSource->dataPropertiesChanged();
   ActiveObjects::instance().renderAllViews();