Table Of Contents

Option View

The Option view is the place where you set your own parameters for CGNS.NAV. You should be sure the right options are set because some of these are very important and could change the actual contents of a file you want to store.


You can change values in the Option view or edit the file you can find in your home directory. For example you can customize the key bindings only in the file. This file is a plain Python file, it is imported and re-generated each time you run CGNS.NAV.

The contains the history of directories where you opened a CGNS file.


The check-box options are active when the box is checked (wouahahah !). Some are only related to the display of the data, some other are driving the way CGNS.NAV reads or writes the data on disk and have a strong impact on the actual CGNS file you will obtain.

  • Recursive tree display forces the Tree view to open all the children

    recursively. We strongly suggest you un-check this box on large files.

  • One view per tree/node (Not available) when active you cannot open more than one view per tree/node.

  • Show columns titles is used to show/hide the top titles of tables

  • Show menu help balloons activates ugly yelllow balloons giving a hint on the purpose of the icons in the views menus.

  • Recurse SIDS patterns load/copy indicates that you want to load or copy the SIDS CGNS sub-trees in a recursive way. For example, if you load the CGNSBase_t pattern you will obtain the whole SIDS pattern, all pattern children of CGNSBase_t will be loaded as well.

  • Load node on display required (Not available) to save memory and time, CGNS node is read from the file only when CGNS.NAV needs to display it.

  • Check on the fly (Not available) forces a check each time you modify a tree.

  • Follow links during file load indicates that the links CGNS.NAV encounters into a CGNS file have to be followed or not.

  • Do NOT follow links during file save means that the links will be ignored during save which has the effect to merge all the tree nodes into the same root file.

  • Do not load large DataArrays

  • Show 1D values as plain Python types

  • Show SIDS status column

  • Max tree parse recursion level

  • Max length of data displayed in table

  • History file name

  • Default profile

  • Profile path list

  • Force fortran flag in numpy arrays

  • Transpose array for edit/view

Default key/mouse bindings per view

The <C-x> notation stands for <Control-X>, that is pressing the Control key and the X letter key at the same time. The mouse actions can be a Single or a Double click on the *L*eft, *M*iddle or *R*ight button.

View Key/Mouse Action



On a view line, raises this view window

On a view line, closes the window and its children windows




















Raises the ControlView window

Select current node

On a node, open/close the selected node

Opens the pop-up menu for selected node

Copy selected node

Cut selected node

Paste buffered tree as selected node’s brother

Paste buffered tree as selected node’s child

Opens a new Tree window for selected node

Opens a new Table window for selected node

Change selected node’s name

Change selected node’s CGNS type

Change selected node’s value

Add brother node to selected node

Add child node to selected node

Copy selected node as link destination

Add link to buffered link node destination

Check selected node and its sub-tree

TableView <Backspace> Raises the ControlView window