Menu: View results->Iso surfaces
With this result visualization a surface, or line, is drawn passing through all the points which have the same result's value inside a volume mesh, or surface mesh. To create isosurfaces there are several options.
- Select View results->Iso surfaces->Automatic width->Velocity->|Velocity| throught the menu bar or clicking on
on the results view icon bar.
After choosing the result, you are asked for a width. This width is used to create as many isosurfaces as are needed between the Minimum and Maximum defined values (these are included).
- Enter the value 0.25727 to get the picture below.
- Select View->Render->Smooth in order to get a better view.
Several configuration options can be set via the preferences window 
.
Menu: Utilities-->Preferences
In the Postprocess-->Iso surfaces tree
Display style the style of the iso-surface (similar options to the style of each set), set it to Body.
In order to see the inner zones we will set the transpacency on the iso surfaces.
- Select Transparency: Transparent
- Move the model to see the inner zones
- Restore again Transparency: Opaque
Other interesting options are:
- Color mode allows to draw the iso-surfaces with a single colour (Monochrome), according to the results used to create the iso-surface (Result color) or using the color map of the visualized contour fill result (Contour fill color).
- For instance, select Color mode = Contour Fill Color and
- Do a contour fill of Pressure:
- Show isolines this option allows the user to switch isolines of surfaces on or off. Switch it off.
- Draw always if this option is selected the iso-surfaces are always drawn even though all the meshes are switched off.
It is possible to convert the iso-surfaces in a mesh of triangles, with the menu: Geometry->Convert to sets->Iso surfaces
Then a new mesh will appear in the view style window. This mesh could be for example exported to a file, or use the rest of mesh operations.