Tips

How to select entities with filters

Anytime user is making a selection inside GiD (geometry or mesh entities), the selection window can be used to apply useful filters to the selection.

This option can be activated in preprocess mode selecting the menu Utilities->Tools->Selection window.

It can also be activated from the contextual menu, clicking with the right mouse button.

Selection window contextual  Selection window

How to avoid interpolation problem while meshing

Imagine you want to apply a boudary condition in a mesh but you have elements with all its nodes in the boundary. This will cause a calculation problem because the value of the element is the interpolation of the values of its nodes.

You can avoid this problem generating a proper mesh without elements with all its nodes in the boundary.

In order to do it you can activate the option Avoid elements with all its nodes in boundary, and the mesh generated by GiD will not have this kind of elements.

This option can be found in the preferences window, inside the Meshing->Other branch.

avoid nodes

 

Rotate, Pan, Zoom With Mouse

Rotate, pan and zoom are accessible directly from mouse buttons, pressing shift key.

User can access to rotate, pan and zoom view options directly using mouse buttons, while the shift key is pressed:

  • shift + left mouse button -> ROTATE
  • shift + wheel/center mouse button -> ZOOM
  • shift + right button -> PAN

How to swap between visualization modes

You can swap between fast and save visualization modes with just a button. Find it at the bottom right corner of the GiD window.

Fast and safe modes icons in black theme

Fast and safe modes icons in black theme

Fast and safe modes icons in classic theme Fast and safe modes icons in black theme

After clicking on the icon the following window will appear. Just select the desired mode and click Apply.

visualization mode

Remember that you can also change this option from the preferences window in preprocess and postprocess mode. Just go to Utilities->Preferences, and choosing the Graphical->System branch.

Select the visualization mode depending on your hardware capabilities:

  • Fast visualization mode: GiD will use the hardware acceleration provided by the driver to accelerate the visualization of the models. If some problems appear, please update your driver or use the Safe visualization mode.
  • Safe visualization mode: GiD will render the model and mesh using only the CPU, i.e. will not use hardware acceleration of the graphics card. This will make some artifacts dissapear but models and meshes will be drawn slower.

Find more information about all the visualization options in the GiD reference manual.

How to activate the stereoscopic view

In GiD the model can be set as an anaglyphic image in order to provide a stereoscopic 3D effect, when viewed with 2 color glasses (each lens a chromatically opposite color, usually red and cyan). Anaglyphic images are made up of two color layers, superimposed.

This option is very useful to get a better 3D perception of the model you are working with or to create more realistic animations.

In order to activate the stereoscopic mode just go to View->Advanced viewing settings to open the window and check the Use stereo option. This mode can be activated both in preprocess and postprocess.

If you want to use a 3D red-cyan glasses make sure you have selected the Anaglyph colors in the stereo mode option. You will need to adjust the eye distance option until you are able to see the 3D effect.

Use perspective for a better 3D perception. You can enable this option from the same window or through the top menu¬†View ->Perspective…

Another way to improve the 3D experience is switching to full screen mode. Learn how to do it with this tip.

You can also combine the stereoscopic view with the shadows effect in order to improve the 3d perception. Learn more about the shadows effect with this tip.

stereoscopic view

Find more information about this option in the GiD reference manual.