# Optimization page

<figure><img src="https://1819386414-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F6X01LI9Sqm2LtuIQnBfY%2Fuploads%2FtMWKsg5x5lLLzGcpHE1j%2Fimage.png?alt=media&#x26;token=453680bc-187b-42c5-851a-1f770f82b67d" alt=""><figcaption></figcaption></figure>

'Run': Run topology optimization.

'Stop': Pause the running topology optimization.

'Reset': Reset topology optimization.

'Load': Define load conditions. After clicking the 'Load' button, a setting panel appears. It requires users to input three parameters to define a loading area. After clicking the 'Check' button, **a red cube** is created in front of the right controller. The size of the cube can be adjusted by transformation operations introduced in the '[VR system](https://albertlidesign.gitbook.io/vr-beso/tutorial/vr-system)' page. All finite elemental nodes inside the cube will be loaded.

'Support': Define boundary conditions. After clicking the 'Support' button, a setting panel appears. It requires users to determine the fixed directions to define a supporting area. After clicking the 'Check' button, **a blue cube** is created in front of the right controller. The size of the cube can be adjusted by transformation operations introduced in the '[VR system](https://albertlidesign.gitbook.io/vr-beso/tutorial/vr-system)' page. All finite elemental nodes inside the cube will be fixed.

'Apply': Assemble all conditions and create a finite element model. This button is available after defining a design domain, loading, and boundary conditions. After this button successufully works, the model is ready for topology optimization.

'Void': Define a passive void domain by setting a purple cube. The size of the cube can be adjusted by transformation operations introduced in the '[VR system](https://albertlidesign.gitbook.io/vr-beso/tutorial/vr-system)' page. All finite elements inside the cube will always be removed during the optimization process. More details about passive void domains can be found in \[].

'Solid': Define a passive solid domain by setting a brown cube. The size of the cube can be adjusted by transformation operations introduced in the '[VR system](https://albertlidesign.gitbook.io/vr-beso/tutorial/vr-system)' page. All finite elements inside the cube will always be preserved during the optimization process. More details about passive void domains can be found in \[].

'Save':

'Smooth':

'Resculpt':

'History':

'Help':

'Intro':

'Quit': Quit the application.


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