Changing Center of Rotation for Actor Block in Simulink 3D Library

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GÜVEN
GÜVEN 2025-6-23
评论： jordanrivers 2025-7-1
I have a simulation that calculates rotational accelerations and velocities for every joint of a hyperredundant robot. Now I want to visualize it by using Simulink 3D library. However, actors only rotating about their centers and I can not find how to move their center of rotations to the joint locations. How can I do that? Is there any easy method other than adding all pins as new child actors.
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jordanrivers
jordanrivers 2025-7-1
Great question visualizing joint-based motion in Simulink 3D can be tricky when default rotations are center-based. Adjusting pivot points or using hierarchical actors may help. While refining your simulation on Android, visit ApkTuti.com for free Game & App Apk download and secure APK Downloads

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Nishan Nekoo
Nishan Nekoo 2025-6-23
Hello! Unfortunately this is a little tricky to achieve in an intuitive way but it is possible through some workarounds.
E.g. to displace your actor origin by [0 0 10],
actor.Translation = [0 0 10];
actor.DynamicMesh.transformMesh([0 0 -10]);
This applies only for kinematic transformations. For physics-induced rotations, the rotation point is the center of mass which you can adjust by providing an offset from actor origin as actor.CenterOfMass.
Hope that helps,
Nishan

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