I created a wrapping surface for a ligament in my model (show below)
- osim1.PNG (97.26 KiB) Viewed 680 times
- osim2.PNG (90.28 KiB) Viewed 680 times
Thank you.
Ligament passing through a wrapping surface
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Matthew Blomquist
- Posts: 1
- Joined: Wed Apr 08, 2020 6:08 am
Ligament passing through a wrapping surface
Hello,
I created a wrapping surface for a ligament in my model (show below)
The ligament initially goes around the wrapping surface, as expected, but mid-simulation, the ligament goes straight through the wrapping surface:
I saw on a previous post (viewtopicPhpbb.php?f=91&t=14330&p=41269&start=0&view=) that if the path points of the ligament end up inside the wrapping object, then no wrapping is applied. But for this scenario, the two path points (the two ends of the dark-blue/purple ligament) are clearly far away from the wrapping surface (light blue in the middle). Does anyone have any suggestions on why this is happening and if there is a way to fix it?
Thank you.
I created a wrapping surface for a ligament in my model (show below)
The ligament initially goes around the wrapping surface, as expected, but mid-simulation, the ligament goes straight through the wrapping surface:
I saw on a previous post (viewtopicPhpbb.php?f=91&t=14330&p=41269&start=0&view=) that if the path points of the ligament end up inside the wrapping object, then no wrapping is applied. But for this scenario, the two path points (the two ends of the dark-blue/purple ligament) are clearly far away from the wrapping surface (light blue in the middle). Does anyone have any suggestions on why this is happening and if there is a way to fix it?
Thank you.
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Carmichael Ong
- Posts: 401
- Joined: Fri Feb 24, 2012 11:50 am
Re: Ligament passing through a wrapping surface
Unfortunately, as you've observed sometimes the path of a ligament or muscle can pass into a wrapping surface at some joint configurations but not others. A couple of ways to deal with this:
1. Add a PathPoint or ConditionalPathPoint to help prevent the path from going into the surface.
2. As you analyze in which configurations this can happen (which is a great debug step for this!), if there are pre-existing PathPoint or ConditionalPathPoint's, you can move them slightly in the GUI to help out as well.
1. Add a PathPoint or ConditionalPathPoint to help prevent the path from going into the surface.
2. As you analyze in which configurations this can happen (which is a great debug step for this!), if there are pre-existing PathPoint or ConditionalPathPoint's, you can move them slightly in the GUI to help out as well.