ROI tab of the dock

ROIs are editable in slice view and synchronized view widgets.

ROI list

ROI list frame at the top. Left-click to select a ROI element in the list (blue outline in Windows platform, blue background in MasOS platform).

ROI item

ROI item widgets:

Check box

Some processes are performed on checked ROI(s) such as export, duplicate, distance map, mesh conversion and set operators.

Edit box

To display and edit ROI name.

view

Left-click to toogle ROI visibility in the view widget(s).

opacity

Left-click to select ROI opacity in the view widget(s) (0.0 transparent, 1.0 opaque).

palette

Left-click to display a ROI color dialog.

save

Left-click to save ROI (PySisyphe ROI file, .xroi), ROI name is used as file name.

cross

Left-click to remove ROI from list and from view widget(s).

Icon bar

Icon bar below ROI list:

open

Left-click to show ROI selection dialog (PySisyphe ROI file, .xroi), adds selected ROI(s) to the list and displays them in the view widget(s). This ROI must be in the same space as the reference volume displayed in the view widget i.e. same space ID.

add

Left-click to add a new empty ROI to the list.

save

Left-click to save all ROI(s) of the list.

delete

Left-click to remove all ROI(s) from the list and from the view widget(s).

console

Left-click to copy checked ROI(s) to the PySisyphe console as a list of SisypheROI instances (variable name ‘rois’).

view

Left-click to show/hide all ROI(s) of the list.

cross

Left-click to remove checked ROI(s) from the list and from the view widget(s).

export

Left-click to export checked ROI(s), supported formats are: PySisysphe volume (.xvol), Nifti, Nrrd, Minc, Numpy, vtk or DICOM RTSTRUCT.

duplicate

Left-click to add a copy of the selected ROI in the list.

check

Left-click to check all ROI(s) of the list.

uncheck

Left-click to uncheck all ROI(s) of the list.

map

Left-click to open a popup menu that will calculate and save distance maps of the checked ROI(s). The distance map labels each voxels of the image with the euclidean distance to the nearest boundary of the ROI. Two types of distance maps can be calculated, either with positive values outside the ROI (menu outside positive) or, conversely, with positive values inside the ROI (menu inside positive).

roi2mesh

Left-click to convert checked ROI(s) to mesh(es) and save.

texture

Left-click to process texture features of checked ROI(s). A dialog box is displayed in which you can select the texture features (feature definition) and kernel radius (in voxels) used by some texture operators.

Set Operators

Set operators icons at the bottom:

union

Left-click to process union of the checked ROI(s), adds result to the ROI list and displays it in the view widget(s).

intersection

Left-click to process intersection of the checked ROI(s), adds result to the ROI list and displays it in the view widget(s).

difference

Left-click to process difference betwenn selected ROI and checked ROI(s), adds result to the ROI list and displays it in the view widget(s).

differencesym

Left-click to process symmetric difference betwenn selected ROI and checked ROI(s), adds result to the ROI list and displays it in the view widget(s).