Virtual Points can be added by clicking the +VP button in the toolbar or pressing V. The position of the Virtual Point depends on the which objects are selected when it is created:
Virtual Points can be edited by right-clicking on the object in the 3D viewer and selecting Edit object or right-clicking on the item in the Item Overview and selecting Edit Item. Multiple objects can be selected using CTRL+click and then edited simultaneously.
Here, the name and description of the Virtual Point can be edited, and the position can be updated using actual coordinates. Note that the normal vector must be physically realizable and will be re-calculated after each modification. The color and transparency of the VP can also be changed, and visibility toggled on/off.
The response and reference DoFs of a Virtual Point can be synchronized, or not. If needed, you can select different VP-DoFs for its responses than for its references.
To select the Virtual Point DoFs, complete the next steps:
You can assign each sensor and excitation to the Virtual Points.
To assign excitations and sensors to the Virtual Points, complete the next steps:
You can assign each sensor and excitation to multiple Virtual Points. The additional Virtual Points are called secondary Virtual Points. Secondary Virtual Points work exactly like primary VPs and can share sensors and excitations with them. Force and response consistency are not calculated for the secondary Virtual Points.
To assign excitations and sensors to the secondary Virtual Points, complete the next steps:
You cannot assign sensors measuring different quantities to the same VP.
If you assign force gauges to your VP, the Virtual Point response will be a force. (Theory at this link.)
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