The Diagonalize command requires the selection of at least one quad-dominant
domain (structured or unstructured) prior to being available. This command creates a new
unstructured domain from the same loop of connectors via the chosen method.
Select a quad-dominant domain or domains, then go to Create, Diagonalize.
A new unstructured domain or domains are generated automatically based on the currently
selected method. Change the Diagonalization Method and Visibility/Delete
Options if desired. Click OK
to save the new unstructured domain and close the panel. Click Cancel to close
the panel without saving the changes.
Use the Diagonalize command to create unstructured domains
from existing quad-dominant domains.
The Diagonalization Method frame provides options for specifying how the
unstructured domains are created. There are four diagonalization methods to
- Aligned: Splits all the existing quadrilaterals in the same direction
throughout the domain. This method is only available if the selected domain(s) are
structured and is the default method.
- Best Fit: Splits the existing quadrilaterals such that the new
triangles have the smallest possible maximum included angle.
- Keep Quads: Keeps the current quadrilateral cells and transforms the
structured domain into an unstructured one. This method is only available if the
selected domain(s) are structured.
- Initialize: Throws out the existing quadrilaterals and inserts a new
triangulated mesh using the same initialization method used on newly created unstructured
The Visibility/Delete Options frame provides controls for how to treat the original
domains from which the new unstructured domains are created. By default the original
domains remain and are visible via Show. Select Hide to have the
original domains automatically be hidden when you click OK to save and close
the panel. Otherwise, use Delete to have the original domains deleted when the panel closes.