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Version: v2.2.0

Multiple Slice

Create, manage, and organize segments using the toolbar controls described below.

  • The Multiple Slice tool allows users to simultaneously select and edit multiple segments, streamlining the editing process for efficiency.

Steps:​

  • Choose the Multiple Slice tool.

  • Choose the parent segment to which the edits will be applied.

  • Paint the region of interest in the 2D view.

  • Choose whether to Add or Remove voxels across the slice range.

  • Click Initialize/Update to generate a preview of the operation.

  • Click Show Preview to visualize the multi-slice result in the 3D view.

  • Adjust the preview opacity slider to control transparency.

  • Click Apply to commit the operation to the segment

Additional Information​

Changing Parent Segment​

  • Use the Parent Segment dropdown to switch to a different target segment.

Apply/Update Changes​

  • Click Initialize/Update to refresh the preview after making changes.

Preview​

  • The 3D view displays a preview of the multi-slice operation result.

Opacity​

  • Use the opacity control to adjust the transparency of the preview overlay.

Operation​

  • Switch between Add (extends segment across slices) and Remove (deletes from slices) operations.
  • Add : Adds segmentation data to all slices within the painted region.
  • Remove : Removes segmentation data from all slices within the painted region.
  • Brush Shape : Circle, Square, and Lasso are the main types of brush shapes you can choose from.
  • Brush Size : Adjusts the diameter of Circle brushes and the side length of Square brushes. Not applicable when using the Lasso shape.
  • Edit in 3D : When active, painting and erasing operations apply directly in the 3D view. This option is enabled by default for the Lasso brush.
  • Sphere Brush : Available for the Circle brush only. When enabled, a 3D spherical brush is used, simultaneously affecting voxels across adjacent slices — useful for volumetric editing.

Multiple Slice

  • Threshold Intensity : When enabled, painting is restricted to voxels within the specified intensity range. A slider will appear to define the minimum and maximum intensity bounds, preventing accidental painting into adjacent structures.