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Add constraint island discovery

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PiperOrigin-RevId: 557067599
Change-Id: Ic41e1d0efef02b7a79142518afe49cf9d4e74725
This commit is contained in:
Yuval Tassa
2023-08-15 02:29:26 -07:00
committed by Copybara-Service
parent e4dddea42a
commit 3e034e38b2
40 changed files with 1557 additions and 468 deletions
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include/mujoco/mjmodel.h
+7 -3
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@@ -70,8 +70,9 @@ typedef enum mjtEnableBit_ { // enable optional feature bitflags
mjENBL_SENSORNOISE = 1<<3, // add noise to sensor data
// experimental features:
mjENBL_MULTICCD = 1<<4, // multi-point convex collision detection
mjENBL_ISLAND = 1<<5, // constraint island discovery
mjNENABLE = 5 // number of enable flags
mjNENABLE = 6 // number of enable flags
} mjtEnableBit;
@@ -557,7 +558,7 @@ struct mjModel_ {
int nu; // number of actuators/controls = dim(ctrl)
int na; // number of activation states = dim(act)
int nbody; // number of bodies
int nbvh; // number of total bounding volumes in all bodies
int nbvh; // number of bounding volumes in all bodies
int njnt; // number of joints
int ngeom; // number of geoms
int nsite; // number of sites
@@ -611,13 +612,14 @@ struct mjModel_ {
int nM; // number of non-zeros in sparse inertia matrix
int nD; // number of non-zeros in sparse dof-dof matrix
int nB; // number of non-zeros in sparse body-dof matrix
int ntree; // number of kinematic trees under world body
int nemax; // number of potential equality-constraint rows
int njmax; // number of available rows in constraint Jacobian
int nconmax; // number of potential contacts in contact list
int nstack; // number of fields in mjData stack
int nuserdata; // number of extra fields in mjData
int nsensordata; // number of fields in sensor data vector
int npluginstate; // number of fields in the plugin state vector
int npluginstate; // number of fields in plugin state vector
int nbuffer; // number of bytes in buffer
@@ -645,6 +647,7 @@ struct mjModel_ {
int* body_jntadr; // start addr of joints; -1: no joints (nbody x 1)
int* body_dofnum; // number of motion degrees of freedom (nbody x 1)
int* body_dofadr; // start addr of dofs; -1: no dofs (nbody x 1)
int* body_treeid; // id of body's kinematic tree; -1: static (nbody x 1)
int* body_geomnum; // number of geoms (nbody x 1)
int* body_geomadr; // start addr of geoms; -1: no geoms (nbody x 1)
mjtByte* body_simple; // body is simple (has diagonal M) (nbody x 1)
@@ -691,6 +694,7 @@ struct mjModel_ {
int* dof_bodyid; // id of dof's body (nv x 1)
int* dof_jntid; // id of dof's joint (nv x 1)
int* dof_parentid; // id of dof's parent; -1: none (nv x 1)
int* dof_treeid; // id of dof's kinematic tree (nv x 1)
int* dof_Madr; // dof address in M-diagonal (nv x 1)
int* dof_simplenum; // number of consecutive simple dofs (nv x 1)
mjtNum* dof_solref; // constraint solver reference:frictionloss (nv x mjNREF)