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Introduce rigidification example/tutorial#625

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alxbilger merged 3 commits into
sofa-framework:masterfrom
alxbilger:rigidification
Jul 10, 2026
Merged

Introduce rigidification example/tutorial#625
alxbilger merged 3 commits into
sofa-framework:masterfrom
alxbilger:rigidification

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@alxbilger

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This example scene introduces the concept of rigidification with a very detailed explanation directly in the script.

The scene is designed as if rigidification was an option added to a flexible beam.

Comparison flexible vs rigidified:

sofa_video_r60_0003.mp4

The mapping graph for the flexible beam:

graphviz

The mapping graph for the rigidified beam:

graphviz2

The system matrix for the flexible beam:
flexible

The system matrix for the rigidified beam:
rigidified

Observation of the rigid part with large deformations:

playing.mp4

@bakpaul

bakpaul commented Jul 9, 2026

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@alxbilger we have an error thrown by the scenechecker checking for a mstate in the same node as the mapping... What do we do ? Shall we remove this scene schecker ?

@alxbilger

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Merging after sofa-framework/sofa#6177

@alxbilger alxbilger merged commit 6a0e08c into sofa-framework:master Jul 10, 2026
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bakpaul added a commit that referenced this pull request Jul 10, 2026
* Introduce rigidification example

* reorganise file

* Remove SofaMAtrix components

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Co-authored-by: Paul Baksic <30337881+bakpaul@users.noreply.github.com>
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2 participants