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Based on a provided URDF (or xacro), it reads all geometries that have a mass inertial tag, and prints a URDF-ready inertia matrix.

License: The Unlicense

Python 100.00%
inertia mesh ros ros2 urdf xacro xacro-urdf

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constgemm avatar gstavrinos avatar muratkoc503 avatar

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calc-inertia's Issues

Mass-inertia scaling

It appears that the generated inertia values for meshes are 100x larger than the "expected" inertia values in gazebo (inertia should be a bounding box that includes the mesh) . I need to investigate this. For now, I just manually multiply my inertia matrices with 0.01.

calc_inertia.py calculates inertia for shells

I find it very frustrating that this fact is not clearly stated in the readme.

Why i think this is the case:

I used blender to generate a sphere and checked my results against standard formulas
( I_sphere = 0.4 * m * r^2; I_sphericalshell = 0.666 * m * r^2)

My results match very closely to theoretical spherical shells.

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