I would like to ask a question regarding posing. My aim is to detect the variation in bone position from the skin in different poses (hypothesis being: as the soft tissues deform, the bone wont always be at the same position wrt the skin). I currently have 8 antennas placed around the skin which are supposed to mimic wearable antennas and I would like to move these antennas along with the pose.
But if I link these antennas to the bone using "link-parent tool", the bone is always at the same location wrt to the bone irrespective of the pose. But I cannot link the antennas wrt to the skin as the antennas dont move with the pose.
How can I do this? I would like the antennas which are placed around the skin to similar to the skin rather than the bone?
Based on the first video in this chain, triangular meshes can be posed similar to the body. If I convert the antennas to meshes and then pose it, will I be getting the same issue i.e the bone is always at the same location wrt to the antennas?
You can drag the entire group onto the simulation. The surfaces are tagged, and will be assigned to the correct material properties automatically.
The reason for the locks is to prevent users from deleting individual surfaces, or editing them in some way. This would break the poser functionality. If you are bothered by this, or don't need to change the posture of the model, you can always select the bone mesh system and run "Clone As Static" in the context menu.
Hi, sorry. I still am facing issues.
Since the antenna was too big for the thigh surface, I used a cuboid around the thigh to project the antenna. But, the projection is stil being deformed on the front and back. I have attached images of the process. I am not sure what is happening?
b) Also, since the source (edge source for example) cannot be converted to mesh, do the snapping options (like snap to edge midpoint etc) work for meshes or how do we go about it?
@farhana
Hi Farhana,
It is safe to put extra padding to avoid errors due to boundary conditions. Especially for antenna simulations, you should avoid fictitious reflections from the open boundary conditions (absorbing boundary conditions, ABC, or perfectly matched layer, PML).
However, if you have a directive antenna, you can decrease the extra padding layers in the directions with lower radiation, and also you may use less PML layers in these directions as well. For the main beam direction, you should definitely use extra padding and high number of PMLs. These are my two cents for you. I hope these may help.
Best, Sayim
@farhana
Hi,
Good to hear this. I am using the following line of code to rotate an object around an arbitrary point (Xcenter, Ycenter, Zcenter) with rotation angles (Xtheta, Ytheta, Ztheta).
This is more like a "Rotate" operation followed by a "Translate".