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Add mj_extractState as a public API function.

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This function allows the caller to extract a subset of components of a state previously obtained via `mj_getState` without having to first write it back into `mjData`.

PiperOrigin-RevId: 822165077
Change-Id: I6433261f4f5ec2e8d024bb7dee8f7dbf1e62666c
This commit is contained in:
Saran Tunyasuvunakool
2025-10-21 10:00:24 -07:00
committed by Copybara-Service
parent 25f5be82ff
commit 2f65e23779
11 changed files with 171 additions and 1 deletions
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doc/includes/references.h
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@@ -3118,6 +3118,8 @@ void mj_constraintUpdate(const mjModel* m, mjData* d, const mjtNum* jar,
mjtNum cost[1], int flg_coneHessian);
int mj_stateSize(const mjModel* m, unsigned int sig);
void mj_getState(const mjModel* m, const mjData* d, mjtNum* state, unsigned int sig);
void mj_extractState(const mjModel* m, const mjtNum* src, unsigned int srcsig,
mjtNum* dst, unsigned int dstsig);
void mj_setState(const mjModel* m, mjData* d, const mjtNum* state, unsigned int sig);
void mj_setKeyframe(mjModel* m, const mjData* d, int k);
int mj_addContact(const mjModel* m, mjData* d, const mjContact* con);