How to select multiple segments in segmentation editor table view

upupming · September 13, 2021, 8:36am

In the table view, we have a context menu item named show only selected items, since it says ‘segments’, I assume we should be able to select multiple segments at once, however, I found I can only select one segment once. But I have an amount of 50 segments, how can I select and show them at once? Thanks!

I have read the source code, it seems single selection is intended:

github.com

Slicer/Slicer/blob/8eaa925245a96cf46d6c2baab72bc7c07b6e3aa3/Modules/Loadable/Segmentations/Widgets/qMRMLSegmentEditorWidget.cxx#L484


      
          QObject::connect( this->MasterVolumeIntensityMaskRangeWidget, SIGNAL(valuesChanged(double,double)), q, SLOT(onMasterVolumeIntensityMaskRangeChanged(double,double)));
          QObject::connect( this->OverwriteModeComboBox, SIGNAL(currentIndexChanged(int)), q, SLOT(onOverwriteModeChanged(int)));
          
          QObject::connect( this->UndoButton, SIGNAL(clicked()), q, SLOT(undo()) );
          QObject::connect( this->RedoButton, SIGNAL(clicked()), q, SLOT(redo()) );
          
          q->qvtkConnect(this->SegmentationHistory, vtkCommand::ModifiedEvent,
            q, SLOT(onSegmentationHistoryChanged()));
          
          // Widget properties
          this->SegmentsTableView->setSelectionMode(QAbstractItemView::SingleSelection);
          this->SegmentsTableView->setHeaderVisible(true);
          this->SegmentsTableView->setVisibilityColumnVisible(true);
          this->SegmentsTableView->setColorColumnVisible(true);
          this->SegmentsTableView->setOpacityColumnVisible(false);
          this->AddSegmentButton->setEnabled(false);
          this->RemoveSegmentButton->setEnabled(false);
          this->Show3DButton->setEnabled(false);
          this->SwitchToSegmentationsButton->setEnabled(false);
          this->EffectsGroupBox->setEnabled(false);
          this->OptionsGroupBox->setEnabled(false);

Can anyone explain why not support multiple rows selection, thanks!

lassoan · September 13, 2021, 2:29pm

You can go to Segmentations module for a segment list with multi-select enabled.

All the segment editor effects currently assume that there is only a single segment is selected. Simply enabling multiple selection would break them. Multi-select would be meaningful for some effects, with certain parameter settings, so it could be useful to implement this. We don’t have plans for implementing this, but contributions are welcome!

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How to select multiple segments in segmentation editor table view

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