static PyObject *
pybullet_loadURDF(PyObject* self, PyObject* args)
{
int size= PySequence_Size(args);
int bodyIndex = -1;
const char* urdfFileName="";
float startPosX =0;
float startPosY =0;
float startPosZ = 1;
float startOrnX = 0;
float startOrnY = 0;
float startOrnZ = 0;
float startOrnW = 1;
//printf("size=%d\n", size);
if (0==sm)
{
PyErr_SetString(SpamError, "Not connected to physics server.");
return NULL;
}
if (size==1)
{
if (!PyArg_ParseTuple(args, "s", &urdfFileName))
return NULL;
}
if (size == 4)
{
if (!PyArg_ParseTuple(args, "sfff", &urdfFileName,
&startPosX,&startPosY,&startPosZ))
return NULL;
}
if (size==8)
{
if (!PyArg_ParseTuple(args, "sfffffff", &urdfFileName,
&startPosX,&startPosY,&startPosZ,
&startOrnX,&startOrnY,&startOrnZ, &startOrnW))
return NULL;
}
{
b3SharedMemoryStatusHandle statusHandle;
int statusType;
b3SharedMemoryCommandHandle command = b3LoadUrdfCommandInit(sm, urdfFileName);
//printf("urdf filename = %s\n", urdfFileName);
//setting the initial position, orientation and other arguments are optional
b3LoadUrdfCommandSetStartPosition(command, startPosX,startPosY,startPosZ);
statusHandle = b3SubmitClientCommandAndWaitStatus(sm, command);
statusType = b3GetStatusType(statusHandle);
if (statusType!=CMD_URDF_LOADING_COMPLETED)
{
PyErr_SetString(SpamError, "Cannot load URDF file.");
return NULL;
}
bodyIndex = b3GetStatusBodyIndex(statusHandle);
}
return PyLong_FromLong(bodyIndex);
}
int main(int argc, char* argv[])
{
kPhysClient = b3CreateInProcessPhysicsServerAndConnect(argc, argv);
if (!kPhysClient)
return -1;
// visualizer
command = b3InitConfigureOpenGLVisualizer(kPhysClient);
b3ConfigureOpenGLVisualizerSetVisualizationFlags(command, COV_ENABLE_GUI, 0);
b3SubmitClientCommandAndWaitStatus(kPhysClient, command);
b3ConfigureOpenGLVisualizerSetVisualizationFlags(command, COV_ENABLE_SHADOWS, 0);
b3SubmitClientCommandAndWaitStatus(kPhysClient, command);
b3SetTimeOut(kPhysClient, 10);
//syncBodies is only needed when connecting to an existing physics server that has already some bodies
command = b3InitSyncBodyInfoCommand(kPhysClient);
statusHandle = b3SubmitClientCommandAndWaitStatus(kPhysClient, command);
statusType = b3GetStatusType(statusHandle);
// set fixed time step
command = b3InitPhysicsParamCommand(kPhysClient);
ret = b3PhysicsParamSetTimeStep(command, FIXED_TIMESTEP);
statusHandle = b3SubmitClientCommandAndWaitStatus(kPhysClient, command);
ret = b3PhysicsParamSetRealTimeSimulation(command, false);
statusHandle = b3SubmitClientCommandAndWaitStatus(kPhysClient, command);
b3Assert(b3GetStatusType(statusHandle) == CMD_CLIENT_COMMAND_COMPLETED);
// load test
command = b3LoadUrdfCommandInit(kPhysClient, "TwoJointRobot_wo_fixedJoints.urdf");
int flags = URDF_USE_INERTIA_FROM_FILE;
b3LoadUrdfCommandSetFlags(command, flags);
b3LoadUrdfCommandSetUseFixedBase(command, true);
// q.setEulerZYX(0, 0, 0);
// b3LoadUrdfCommandSetStartOrientation(command, q[0], q[1], q[2], q[3]);
b3LoadUrdfCommandSetUseMultiBody(command, true);
statusHandle = b3SubmitClientCommandAndWaitStatus(kPhysClient, command);
statusType = b3GetStatusType(statusHandle);
b3Assert(statusType == CMD_URDF_LOADING_COMPLETED);
if (statusType == CMD_URDF_LOADING_COMPLETED)
{
twojoint = b3GetStatusBodyIndex(statusHandle);
}
//disable default linear/angular damping
b3SharedMemoryCommandHandle command = b3InitChangeDynamicsInfo(kPhysClient);
double linearDamping = 0;
double angularDamping = 0;
b3ChangeDynamicsInfoSetLinearDamping(command, twojoint, linearDamping);
b3ChangeDynamicsInfoSetAngularDamping(command, twojoint, angularDamping);
statusHandle = b3SubmitClientCommandAndWaitStatus(kPhysClient, command);
int numJoints = b3GetNumJoints(kPhysClient, twojoint);
printf("twojoint numjoints = %d\n", numJoints);
// Loop through all joints
for (int i = 0; i < numJoints; ++i)
{
b3GetJointInfo(kPhysClient, twojoint, i, &jointInfo);
if (jointInfo.m_jointName[0])
{
jointNameToId[std::string(jointInfo.m_jointName)] = i;
}
else
{
continue;
}
// Reset before torque control - see #1459
command = b3JointControlCommandInit2(kPhysClient, twojoint, CONTROL_MODE_VELOCITY);
b3JointControlSetDesiredVelocity(command, jointInfo.m_uIndex, 0);
b3JointControlSetMaximumForce(command, jointInfo.m_uIndex, 0);
statusHandle = b3SubmitClientCommandAndWaitStatus(kPhysClient, command);
}
// loop
unsigned long dtus1 = (unsigned long)1000000.0 * FIXED_TIMESTEP;
double simTimeS = 0;
double q[2], v[2];
while (b3CanSubmitCommand(kPhysClient))
{
simTimeS += 0.000001 * dtus1;
// apply some torque
b3GetJointInfo(kPhysClient, twojoint, jointNameToId["joint_2"], &jointInfo);
command = b3JointControlCommandInit2(kPhysClient, twojoint, CONTROL_MODE_TORQUE);
b3JointControlSetDesiredForceTorque(command, jointInfo.m_uIndex, 0.5 * sin(10 * simTimeS));
statusHandle = b3SubmitClientCommandAndWaitStatus(kPhysClient, command);
// get joint values
command = b3RequestActualStateCommandInit(kPhysClient, twojoint);
statusHandle = b3SubmitClientCommandAndWaitStatus(kPhysClient, command);
b3GetJointState(kPhysClient, statusHandle, jointNameToId["joint_1"], &state);
q[0] = state.m_jointPosition;
v[0] = state.m_jointVelocity;
b3GetJointState(kPhysClient, statusHandle, jointNameToId["joint_2"], &state);
q[1] = state.m_jointPosition;
v[1] = state.m_jointVelocity;
statusHandle = b3SubmitClientCommandAndWaitStatus(kPhysClient, b3InitStepSimulationCommand(kPhysClient));
// debugging output
printf("%.3f\t%.3f\t%.3f\t%.3f\t%.3f\n", simTimeS, q[0], q[1], v[0], v[1]);
b3Clock::usleep(1000. * 1000. * FIXED_TIMESTEP);
}
b3DisconnectSharedMemory(kPhysClient);
return 0;
}
int main(int argc, char* argv[])
{
int i, dofCount , posVarCount, dofIndex, ret ,numJoints, allowSharedMemoryInitialization=0;
int sensorJointIndexLeft=-1;
int sensorJointIndexRight=-1;
int statusType = -1;
const char* urdfFileName = "r2d2.urdf";
double gravx=0, gravy=0, gravz=-9.8;
double timeStep = 1./60.;
double startPosX, startPosY,startPosZ;
int imuLinkIndex = -1;
b3PhysicsClientHandle sm=0;
int bodyIndex = -1;
printf("hello world\n");
#ifdef PHYSICS_LOOP_BACK
sm = b3ConnectPhysicsLoopback(SHARED_MEMORY_KEY);
#else
sm = b3ConnectSharedMemory(SHARED_MEMORY_KEY);
#endif
if (b3CanSubmitCommand(sm))
{
{
b3SharedMemoryCommandHandle command = b3InitPhysicsParamCommand(sm);
ret = b3PhysicsParamSetGravity(command, gravx,gravy, gravz);
ret = b3PhysicsParamSetTimeStep(command, timeStep);
b3SubmitClientCommandAndWaitStatus(sm, command);
}
{
b3SharedMemoryStatusHandle statusHandle;
b3SharedMemoryCommandHandle command = b3LoadUrdfCommandInit(sm, urdfFileName);
//setting the initial position, orientation and other arguments are optional
startPosX =2;
startPosY =3;
startPosZ = 1;
ret = b3LoadUrdfCommandSetStartPosition(command, startPosX,startPosY,startPosZ);
statusHandle = b3SubmitClientCommandAndWaitStatus(sm, command);
bodyIndex = b3GetStatusBodyIndex(statusHandle);
}
if (bodyIndex>=0)
{
numJoints = b3GetNumJoints(sm,bodyIndex);
for (i=0;i<numJoints;i++)
{
struct b3JointInfo jointInfo;
b3GetJointInfo(sm,bodyIndex, i,&jointInfo);
printf("jointInfo[%d].m_jointName=%s\n",i,jointInfo.m_jointName);
//pick the IMU link index based on torso name
if (strstr(jointInfo.m_linkName,"base_link"))
{
imuLinkIndex = i;
}
//pick the joint index based on joint name
if (strstr(jointInfo.m_jointName,"base_to_left_leg"))
{
sensorJointIndexLeft = i;
}
if (strstr(jointInfo.m_jointName,"base_to_right_leg"))
{
sensorJointIndexRight = i;
}
}
if ((sensorJointIndexLeft>=0) || (sensorJointIndexRight>=0))
{
b3SharedMemoryCommandHandle command = b3CreateSensorCommandInit(sm);
b3SharedMemoryStatusHandle statusHandle;
if (imuLinkIndex>=0)
{
ret = b3CreateSensorEnableIMUForLink(command, imuLinkIndex, 1);
}
if (sensorJointIndexLeft>=0)
{
ret = b3CreateSensorEnable6DofJointForceTorqueSensor(command, sensorJointIndexLeft, 1);
}
if(sensorJointIndexRight>=0)
{
ret = b3CreateSensorEnable6DofJointForceTorqueSensor(command, sensorJointIndexRight, 1);
}
statusHandle = b3SubmitClientCommandAndWaitStatus(sm, command);
}
}
{
b3SharedMemoryStatusHandle statusHandle;
b3SharedMemoryCommandHandle command = b3CreateBoxShapeCommandInit(sm);
ret = b3CreateBoxCommandSetStartPosition(command, 0,0,-1);
ret = b3CreateBoxCommandSetStartOrientation(command,0,0,0,1);
ret = b3CreateBoxCommandSetHalfExtents(command, 10,10,1);
statusHandle = b3SubmitClientCommandAndWaitStatus(sm, command);
}
{
int statusType;
b3SharedMemoryCommandHandle command = b3RequestActualStateCommandInit(sm,bodyIndex);
b3SharedMemoryStatusHandle statusHandle;
statusHandle = b3SubmitClientCommandAndWaitStatus(sm, command);
statusType = b3GetStatusType(statusHandle);
if (statusType == CMD_ACTUAL_STATE_UPDATE_COMPLETED)
{
b3GetStatusActualState(statusHandle,
0, &posVarCount, &dofCount,
0, 0, 0, 0);
b3Printf("posVarCount = %d\n",posVarCount);
printf("dofCount = %d\n",dofCount);
}
}
{
#if 0
b3SharedMemoryStatusHandle statusHandle;
b3SharedMemoryCommandHandle command = b3JointControlCommandInit( sm, CONTROL_MODE_VELOCITY);
for ( dofIndex=0;dofIndex<dofCount;dofIndex++)
{
b3JointControlSetDesiredVelocity(command,dofIndex,1);
b3JointControlSetMaximumForce(command,dofIndex,100);
}
statusHandle = b3SubmitClientCommandAndWaitStatus(sm, command);
#endif
}
///perform some simulation steps for testing
for ( i=0;i<100;i++)
{
b3SubmitClientCommandAndWaitStatus(sm, b3InitStepSimulationCommand(sm));
}
{
b3SharedMemoryStatusHandle state = b3SubmitClientCommandAndWaitStatus(sm, b3RequestActualStateCommandInit(sm,bodyIndex));
if (sensorJointIndexLeft>=0)
{
struct b3JointSensorState sensorState;
b3GetJointState(sm,state,sensorJointIndexLeft,&sensorState);
b3Printf("Sensor for joint [%d] = %f,%f,%f\n", sensorJointIndexLeft,
sensorState.m_jointForceTorque[0],
sensorState.m_jointForceTorque[1],
sensorState.m_jointForceTorque[2]);
}
if (sensorJointIndexRight>=0)
{
struct b3JointSensorState sensorState;
b3GetJointState(sm,state,sensorJointIndexRight,&sensorState);
b3Printf("Sensor for joint [%d] = %f,%f,%f\n", sensorJointIndexRight,
sensorState.m_jointForceTorque[0],
sensorState.m_jointForceTorque[1],
sensorState.m_jointForceTorque[2]);
}
}
{
b3SubmitClientCommandAndWaitStatus(sm, b3InitResetSimulationCommand(sm));
}
}
b3DisconnectSharedMemory(sm);
}
void testSharedMemory(b3PhysicsClientHandle sm)
{
int i, dofCount , posVarCount, ret ,numJoints ;
int sensorJointIndexLeft=-1;
int sensorJointIndexRight=-1;
const char* urdfFileName = "r2d2.urdf";
const char* sdfFileName = "kuka_iiwa/model.sdf";
double gravx=0, gravy=0, gravz=-9.8;
double timeStep = 1./60.;
double startPosX, startPosY,startPosZ;
int imuLinkIndex = -1;
int bodyIndex = -1;
if (b3CanSubmitCommand(sm))
{
{
b3SharedMemoryCommandHandle command = b3InitPhysicsParamCommand(sm);
b3SharedMemoryStatusHandle statusHandle;
ret = b3PhysicsParamSetGravity(command, gravx,gravy, gravz);
ret = b3PhysicsParamSetTimeStep(command, timeStep);
statusHandle = b3SubmitClientCommandAndWaitStatus(sm, command);
ASSERT_EQ(b3GetStatusType(statusHandle), CMD_CLIENT_COMMAND_COMPLETED);
}
{
b3SharedMemoryStatusHandle statusHandle;
int statusType;
int bodyIndicesOut[10];//MAX_SDF_BODIES = 10
int numJoints, numBodies;
int bodyUniqueId;
b3SharedMemoryCommandHandle command = b3LoadSdfCommandInit(sm, sdfFileName);
statusHandle = b3SubmitClientCommandAndWaitStatus(sm, command);
statusType = b3GetStatusType(statusHandle);
ASSERT_EQ(statusType, CMD_SDF_LOADING_COMPLETED);
numBodies = b3GetStatusBodyIndices(statusHandle, bodyIndicesOut, 10);
ASSERT_EQ(numBodies,1);
bodyUniqueId = bodyIndicesOut[0];
{
{
b3SharedMemoryStatusHandle statusHandle;
int statusType;
b3SharedMemoryCommandHandle command = b3InitRequestVisualShapeInformation(sm, bodyUniqueId);
statusHandle = b3SubmitClientCommandAndWaitStatus(sm, command);
statusType = b3GetStatusType(statusHandle);
if (statusType == CMD_VISUAL_SHAPE_INFO_COMPLETED)
{
struct b3VisualShapeInformation vi;
b3GetVisualShapeInformation(sm, &vi);
}
}
}
numJoints = b3GetNumJoints(sm,bodyUniqueId);
ASSERT_EQ(numJoints,7);
#if 0
b3Printf("numJoints: %d\n", numJoints);
for (i=0;i<numJoints;i++)
{
struct b3JointInfo jointInfo;
if (b3GetJointInfo(sm,bodyUniqueId, i,&jointInfo))
{
b3Printf("jointInfo[%d].m_jointName=%s\n",i,jointInfo.m_jointName);
}
}
#endif
{
b3SharedMemoryStatusHandle statusHandle;
b3SharedMemoryCommandHandle commandHandle;
double jointAngle = 0.f;
int jointIndex;
commandHandle = b3CreatePoseCommandInit(sm, bodyUniqueId);
for (jointIndex=0;jointIndex<numJoints;jointIndex++)
{
b3CreatePoseCommandSetJointPosition(sm, commandHandle, jointIndex, jointAngle);
}
statusHandle = b3SubmitClientCommandAndWaitStatus(sm, commandHandle);
ASSERT_EQ(b3GetStatusType(statusHandle), CMD_CLIENT_COMMAND_COMPLETED);
}
}
{
b3SharedMemoryStatusHandle statusHandle;
int statusType;
b3SharedMemoryCommandHandle command = b3LoadUrdfCommandInit(sm, urdfFileName);
//setting the initial position, orientation and other arguments are optional
startPosX =2;
startPosY =0;
startPosZ = 1;
ret = b3LoadUrdfCommandSetStartPosition(command, startPosX,startPosY,startPosZ);
statusHandle = b3SubmitClientCommandAndWaitStatus(sm, command);
statusType = b3GetStatusType(statusHandle);
ASSERT_EQ(statusType, CMD_URDF_LOADING_COMPLETED);
bodyIndex = b3GetStatusBodyIndex(statusHandle);
}
if (bodyIndex>=0)
{
numJoints = b3GetNumJoints(sm,bodyIndex);
for (i=0;i<numJoints;i++)
{
struct b3JointInfo jointInfo;
b3GetJointInfo(sm,bodyIndex, i,&jointInfo);
// printf("jointInfo[%d].m_jointName=%s\n",i,jointInfo.m_jointName);
//pick the IMU link index based on torso name
if (strstr(jointInfo.m_linkName,"base_link"))
{
imuLinkIndex = i;
}
//pick the joint index based on joint name
if (strstr(jointInfo.m_jointName,"base_to_left_leg"))
{
sensorJointIndexLeft = i;
}
if (strstr(jointInfo.m_jointName,"base_to_right_leg"))
{
sensorJointIndexRight = i;
}
}
if ((sensorJointIndexLeft>=0) || (sensorJointIndexRight>=0))
{
b3SharedMemoryCommandHandle command = b3CreateSensorCommandInit(sm, bodyIndex);
b3SharedMemoryStatusHandle statusHandle;
if (imuLinkIndex>=0)
{
ret = b3CreateSensorEnableIMUForLink(command, imuLinkIndex, 1);
}
if (sensorJointIndexLeft>=0)
{
ret = b3CreateSensorEnable6DofJointForceTorqueSensor(command, sensorJointIndexLeft, 1);
}
if(sensorJointIndexRight>=0)
{
ret = b3CreateSensorEnable6DofJointForceTorqueSensor(command, sensorJointIndexRight, 1);
}
statusHandle = b3SubmitClientCommandAndWaitStatus(sm, command);
ASSERT_EQ(b3GetStatusType(statusHandle), CMD_CLIENT_COMMAND_COMPLETED);
}
}
{
b3SharedMemoryStatusHandle statusHandle;
b3SharedMemoryCommandHandle command = b3CreateBoxShapeCommandInit(sm);
ret = b3CreateBoxCommandSetStartPosition(command, 0,0,-1);
ret = b3CreateBoxCommandSetStartOrientation(command,0,0,0,1);
ret = b3CreateBoxCommandSetHalfExtents(command, 10,10,1);
statusHandle = b3SubmitClientCommandAndWaitStatus(sm, command);
ASSERT_EQ(b3GetStatusType(statusHandle), CMD_RIGID_BODY_CREATION_COMPLETED);
}
{
int statusType;
b3SharedMemoryCommandHandle command = b3RequestActualStateCommandInit(sm,bodyIndex);
b3SharedMemoryStatusHandle statusHandle;
statusHandle = b3SubmitClientCommandAndWaitStatus(sm, command);
statusType = b3GetStatusType(statusHandle);
ASSERT_EQ(statusType, CMD_ACTUAL_STATE_UPDATE_COMPLETED);
if (statusType == CMD_ACTUAL_STATE_UPDATE_COMPLETED)
{
b3GetStatusActualState(statusHandle,
0, &posVarCount, &dofCount,
0, 0, 0, 0);
ASSERT_EQ(posVarCount,15);
ASSERT_EQ(dofCount,14);
}
}
{
#if 0
b3SharedMemoryStatusHandle statusHandle;
b3SharedMemoryCommandHandle command = b3JointControlCommandInit( sm, CONTROL_MODE_VELOCITY);
for ( dofIndex=0;dofIndex<dofCount;dofIndex++)
{
b3JointControlSetDesiredVelocity(command,dofIndex,1);
b3JointControlSetMaximumForce(command,dofIndex,100);
}
statusHandle = b3SubmitClientCommandAndWaitStatus(sm, command);
#endif
}
///perform some simulation steps for testing
for ( i=0;i<100;i++)
{
b3SharedMemoryStatusHandle statusHandle;
int statusType;
if (b3CanSubmitCommand(sm))
{
statusHandle = b3SubmitClientCommandAndWaitStatus(sm, b3InitStepSimulationCommand(sm));
statusType = b3GetStatusType(statusHandle);
ASSERT_EQ(statusType, CMD_STEP_FORWARD_SIMULATION_COMPLETED);
} else
{
break;
}
}
if (b3CanSubmitCommand(sm))
{
b3SharedMemoryStatusHandle state = b3SubmitClientCommandAndWaitStatus(sm, b3RequestActualStateCommandInit(sm,bodyIndex));
if (sensorJointIndexLeft>=0)
{
struct b3JointSensorState sensorState;
b3GetJointState(sm,state,sensorJointIndexLeft,&sensorState);
b3Printf("Sensor for joint [%d] = %f,%f,%f\n", sensorJointIndexLeft,
sensorState.m_jointForceTorque[0],
sensorState.m_jointForceTorque[1],
sensorState.m_jointForceTorque[2]);
}
if (sensorJointIndexRight>=0)
{
struct b3JointSensorState sensorState;
b3GetJointState(sm,state,sensorJointIndexRight,&sensorState);
b3Printf("Sensor for joint [%d] = %f,%f,%f\n", sensorJointIndexRight,
sensorState.m_jointForceTorque[0],
sensorState.m_jointForceTorque[1],
sensorState.m_jointForceTorque[2]);
}
{
b3SharedMemoryStatusHandle statusHandle;
statusHandle = b3SubmitClientCommandAndWaitStatus(sm, b3InitResetSimulationCommand(sm));
ASSERT_EQ(b3GetStatusType(statusHandle), CMD_RESET_SIMULATION_COMPLETED);
}
}
}
b3DisconnectSharedMemory(sm);
}
void PhysicsClientExample::prepareAndSubmitCommand(int commandId)
{
switch (commandId)
{
case CMD_LOAD_URDF:
{
b3SharedMemoryCommandHandle commandHandle = b3LoadUrdfCommandInit(m_physicsClientHandle, "kuka_iiwa/model.urdf");
//setting the initial position, orientation and other arguments are optional
double startPosX = 0;
static double startPosY = 0;
double startPosZ = 0;
b3LoadUrdfCommandSetStartPosition(commandHandle, startPosX,startPosY,startPosZ);
startPosY += 2.f;
// ret = b3LoadUrdfCommandSetUseFixedBase(commandHandle, 1);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_REQUEST_CAMERA_IMAGE_DATA:
{
///request an image from a simulated camera, using a software renderer.
b3SharedMemoryCommandHandle commandHandle = b3InitRequestCameraImage(m_physicsClientHandle);
float viewMatrix[16];
float projectionMatrix[16];
this->m_guiHelper->getRenderInterface()->getActiveCamera()->getCameraProjectionMatrix(projectionMatrix);
this->m_guiHelper->getRenderInterface()->getActiveCamera()->getCameraViewMatrix(viewMatrix);
b3RequestCameraImageSetCameraMatrices(commandHandle, viewMatrix,projectionMatrix);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_CREATE_BOX_COLLISION_SHAPE:
{
b3SharedMemoryCommandHandle commandHandle = b3CreateBoxShapeCommandInit(m_physicsClientHandle);
b3CreateBoxCommandSetStartPosition(commandHandle,0,0,-3);
b3CreateBoxCommandSetColorRGBA(commandHandle,0,0,1,1);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_CREATE_RIGID_BODY:
{
b3SharedMemoryCommandHandle commandHandle = b3CreateBoxShapeCommandInit(m_physicsClientHandle);
b3CreateBoxCommandSetStartPosition(commandHandle,0,0,0);
b3CreateBoxCommandSetMass(commandHandle,1);
b3CreateBoxCommandSetCollisionShapeType(commandHandle,COLLISION_SHAPE_TYPE_CYLINDER_Y);
b3CreateBoxCommandSetColorRGBA(commandHandle,1,1,0,1);
double radius = 0.2;
double halfHeight = 0.5;
b3CreateBoxCommandSetHalfExtents(commandHandle,radius,halfHeight,radius);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_REQUEST_ACTUAL_STATE:
{
if (m_selectedBody>=0)
{
b3SharedMemoryCommandHandle commandHandle = b3RequestActualStateCommandInit(m_physicsClientHandle,m_selectedBody);
b3SharedMemoryStatusHandle statusHandle = b3SubmitClientCommandAndWaitStatus(m_physicsClientHandle, commandHandle);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
int numJoints = b3GetNumJoints(m_physicsClientHandle, m_selectedBody);
for (int i = 0; i < numJoints; ++i) {
struct b3JointSensorState sensorState;
b3GetJointState(m_physicsClientHandle, statusHandle, i, &sensorState);
b3Printf("Joint %d: %f", i, sensorState.m_jointMotorTorque);
}
}
break;
};
case CMD_INIT_POSE:
{
if (m_selectedBody>=0)
{
b3SharedMemoryCommandHandle commandHandle = b3CreatePoseCommandInit(m_physicsClientHandle,m_selectedBody);
static int toggle = 0;
double pos[3] = {0,0,0};
pos[toggle] = 2;
toggle++;
if (toggle>2)
toggle=0;
btQuaternion orn;
orn.setValue(0,0,0,1);
switch (toggle)
{
case 0:
orn = btQuaternion(btVector3(1,0,0),SIMD_HALF_PI);
break;
case 1:
orn = btQuaternion(btVector3(0,1,0),SIMD_HALF_PI);
break;
case 2:
orn = btQuaternion(btVector3(0,0,1),SIMD_HALF_PI);
break;
default:
orn.setValue(0,0,0,1);
};
b3CreatePoseCommandSetBaseOrientation(commandHandle,orn[0],orn[1],orn[2],orn[3]);
b3CreatePoseCommandSetBasePosition(commandHandle, pos[0],pos[1],pos[2]);
int numJoints = b3GetNumJoints(m_physicsClientHandle,m_selectedBody);
static double jointPos = SIMD_PI/2.f;
for (int i=0;i<numJoints;i++)
{
b3JointInfo info;
b3GetJointInfo(m_physicsClientHandle, m_selectedBody,i, &info);
if ((info.m_jointType == 0) || (info.m_jointType == 1)) //revolute or prismatic
{
b3CreatePoseCommandSetJointPosition(m_physicsClientHandle,commandHandle,i,jointPos);
}
}
jointPos += SIMD_PI/8.0;
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
}
break;
}
case CMD_STEP_FORWARD_SIMULATION:
{
b3SharedMemoryCommandHandle commandHandle = b3InitStepSimulationCommand(m_physicsClientHandle);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_REQUEST_DEBUG_LINES:
{
b3SharedMemoryCommandHandle commandHandle = b3InitRequestDebugLinesCommand(m_physicsClientHandle, btIDebugDraw::DBG_DrawWireframe);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_SEND_DESIRED_STATE:
{
// b3SharedMemoryCommandHandle command = b3JointControlCommandInit( m_physicsClientHandle, CONTROL_MODE_VELOCITY);
b3SharedMemoryCommandHandle command = b3JointControlCommandInit( m_physicsClientHandle, CONTROL_MODE_POSITION_VELOCITY_PD);
prepareControlCommand(command);
b3SubmitClientCommand(m_physicsClientHandle, command);
break;
}
case CMD_RESET_SIMULATION:
{
b3SharedMemoryCommandHandle commandHandle = b3InitResetSimulationCommand(m_physicsClientHandle);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_SEND_BULLET_DATA_STREAM:
{
#if 0
//this worked, but needs C-API and a streaming options, similar to debug lines
command.m_type = buttonId;
cl->enqueueCommand(command);
#endif
break;
}
case CMD_SEND_PHYSICS_SIMULATION_PARAMETERS: {
b3SharedMemoryCommandHandle commandHandle = b3InitPhysicsParamCommand(m_physicsClientHandle);
b3PhysicsParamSetGravity(commandHandle, 0.0, 0.0, -9.8);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
default:
{
b3Error("Unknown buttonId");
btAssert(0);
}
};
}
void PhysicsClientExample::prepareAndSubmitCommand(int commandId)
{
switch (commandId)
{
case CMD_LOAD_URDF:
{
b3SharedMemoryCommandHandle commandHandle = b3LoadUrdfCommandInit(m_physicsClientHandle, "kuka_iiwa/model.urdf");
//setting the initial position, orientation and other arguments are optional
double startPosX = 0;
static double startPosY = 0;
double startPosZ = 0;
b3LoadUrdfCommandSetStartPosition(commandHandle, startPosX, startPosY, startPosZ);
startPosY += 2.f;
// ret = b3LoadUrdfCommandSetUseFixedBase(commandHandle, 1);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_LOAD_SDF:
{
#ifdef BT_DEBUG
b3SharedMemoryCommandHandle commandHandle = b3LoadSdfCommandInit(m_physicsClientHandle, "two_cubes.sdf");
#else
b3SharedMemoryCommandHandle commandHandle = b3LoadSdfCommandInit(m_physicsClientHandle, "kitchens/1.sdf"); //two_cubes.sdf");//kitchens/1.sdf");//kuka_iiwa/model.sdf");
#endif
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_REQUEST_CAMERA_IMAGE_DATA:
{
///request an image from a simulated camera, using a software renderer.
b3SharedMemoryCommandHandle commandHandle = b3InitRequestCameraImage(m_physicsClientHandle);
//b3RequestCameraImageSelectRenderer(commandHandle,ER_BULLET_HARDWARE_OPENGL);
float viewMatrix[16];
float projectionMatrix[16];
m_guiHelper->getRenderInterface()->getActiveCamera()->getCameraProjectionMatrix(projectionMatrix);
m_guiHelper->getRenderInterface()->getActiveCamera()->getCameraViewMatrix(viewMatrix);
b3RequestCameraImageSetCameraMatrices(commandHandle, viewMatrix, projectionMatrix);
b3RequestCameraImageSetPixelResolution(commandHandle, camVisualizerWidth, camVisualizerHeight);
float lightPos[3];
lightPos[0] = m_lightPos[0];
lightPos[1] = m_lightPos[1];
lightPos[2] = m_lightPos[2];
b3RequestCameraImageSetLightDirection(commandHandle, lightPos);
b3RequestCameraImageSetLightSpecularCoeff(commandHandle, m_specularCoeff);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_CREATE_BOX_COLLISION_SHAPE:
{
b3SharedMemoryCommandHandle commandHandle = b3CreateBoxShapeCommandInit(m_physicsClientHandle);
b3CreateBoxCommandSetStartPosition(commandHandle, 0, 0, -1.5);
b3CreateBoxCommandSetColorRGBA(commandHandle, 0, 0, 1, 1);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_CREATE_RIGID_BODY:
{
b3SharedMemoryCommandHandle commandHandle = b3CreateBoxShapeCommandInit(m_physicsClientHandle);
b3CreateBoxCommandSetStartPosition(commandHandle, 0, 0, 0);
b3CreateBoxCommandSetMass(commandHandle, 1);
b3CreateBoxCommandSetCollisionShapeType(commandHandle, COLLISION_SHAPE_TYPE_CYLINDER_Y);
b3CreateBoxCommandSetColorRGBA(commandHandle, 1, 1, 0, 1);
double radius = 0.2;
double halfHeight = 0.5;
b3CreateBoxCommandSetHalfExtents(commandHandle, radius, halfHeight, radius);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_REQUEST_ACTUAL_STATE:
{
if (m_selectedBody >= 0)
{
b3SharedMemoryCommandHandle commandHandle = b3RequestActualStateCommandInit(m_physicsClientHandle, m_selectedBody);
b3SharedMemoryStatusHandle statusHandle = b3SubmitClientCommandAndWaitStatus(m_physicsClientHandle, commandHandle);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
int numJoints = b3GetNumJoints(m_physicsClientHandle, m_selectedBody);
for (int i = 0; i < numJoints; ++i)
{
struct b3JointSensorState sensorState;
b3GetJointState(m_physicsClientHandle, statusHandle, i, &sensorState);
//b3Printf("Joint %d: %f", i, sensorState.m_jointMotorTorque);
}
}
break;
};
case CMD_INIT_POSE:
{
if (m_selectedBody >= 0)
{
b3SharedMemoryCommandHandle commandHandle = b3CreatePoseCommandInit(m_physicsClientHandle, m_selectedBody);
static int toggle = 0;
double pos[3] = {0, 0, 0};
pos[toggle] = 2;
toggle++;
if (toggle > 2)
toggle = 0;
btQuaternion orn;
orn.setValue(0, 0, 0, 1);
switch (toggle)
{
case 0:
orn = btQuaternion(btVector3(1, 0, 0), SIMD_HALF_PI);
break;
case 1:
orn = btQuaternion(btVector3(0, 1, 0), SIMD_HALF_PI);
break;
case 2:
orn = btQuaternion(btVector3(0, 0, 1), SIMD_HALF_PI);
break;
default:
orn.setValue(0, 0, 0, 1);
};
b3CreatePoseCommandSetBaseOrientation(commandHandle, orn[0], orn[1], orn[2], orn[3]);
b3CreatePoseCommandSetBasePosition(commandHandle, pos[0], pos[1], pos[2]);
int numJoints = b3GetNumJoints(m_physicsClientHandle, m_selectedBody);
static double jointPos = SIMD_PI / 2.f;
for (int i = 0; i < numJoints; i++)
{
b3JointInfo info;
b3GetJointInfo(m_physicsClientHandle, m_selectedBody, i, &info);
if ((info.m_jointType == 0) || (info.m_jointType == 1)) //revolute or prismatic
{
b3CreatePoseCommandSetJointPosition(m_physicsClientHandle, commandHandle, i, jointPos);
}
}
jointPos += SIMD_PI / 8.0;
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
}
break;
}
case CMD_STEP_FORWARD_SIMULATION:
{
b3SharedMemoryCommandHandle commandHandle = b3InitStepSimulationCommand(m_physicsClientHandle);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_REQUEST_DEBUG_LINES:
{
b3SharedMemoryCommandHandle commandHandle = b3InitRequestDebugLinesCommand(m_physicsClientHandle, btIDebugDraw::DBG_DrawWireframe);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_SEND_DESIRED_STATE:
{
if (m_selectedBody >= 0)
{
// b3SharedMemoryCommandHandle command = b3JointControlCommandInit( m_physicsClientHandle, m_selectedBody, CONTROL_MODE_VELOCITY);
b3SharedMemoryCommandHandle command = b3JointControlCommandInit2(m_physicsClientHandle, m_selectedBody, CONTROL_MODE_POSITION_VELOCITY_PD);
// b3Printf("prepare control command for body %d", m_selectedBody);
prepareControlCommand(command);
b3SubmitClientCommand(m_physicsClientHandle, command);
}
break;
}
case CMD_RESET_SIMULATION:
{
b3SharedMemoryCommandHandle commandHandle = b3InitResetSimulationCommand(m_physicsClientHandle);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_SEND_BULLET_DATA_STREAM:
{
#if 0
//this worked, but needs C-API and a streaming options, similar to debug lines
command.m_type = buttonId;
cl->enqueueCommand(command);
#endif
break;
}
case CMD_CUSTOM_SET_GRAVITY:
{
b3SharedMemoryCommandHandle commandHandle = b3InitPhysicsParamCommand(m_physicsClientHandle);
b3PhysicsParamSetGravity(commandHandle, 0.0, 0.0, -9.8);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_CUSTOM_SET_REALTIME_SIMULATION:
{
b3SharedMemoryCommandHandle commandHandle = b3InitPhysicsParamCommand(m_physicsClientHandle);
b3PhysicsParamSetRealTimeSimulation(commandHandle, 1);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_CALCULATE_INVERSE_DYNAMICS:
{
if (m_selectedBody >= 0)
{
btAlignedObjectArray<double> jointPositionsQ;
btAlignedObjectArray<double> jointVelocitiesQdot;
btAlignedObjectArray<double> jointAccelerations;
int numJoints = b3GetNumJoints(m_physicsClientHandle, m_selectedBody);
if (numJoints)
{
b3Printf("Compute inverse dynamics for joint accelerations:");
jointPositionsQ.resize(numJoints);
jointVelocitiesQdot.resize(numJoints);
jointAccelerations.resize(numJoints);
for (int i = 0; i < numJoints; i++)
{
jointAccelerations[i] = 100;
b3Printf("Desired joint acceleration[%d]=%f", i, jointAccelerations[i]);
}
b3SharedMemoryCommandHandle commandHandle = b3CalculateInverseDynamicsCommandInit(m_physicsClientHandle,
m_selectedBody, &jointPositionsQ[0], &jointVelocitiesQdot[0], &jointAccelerations[0]);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
}
}
break;
}
case CMD_REQUEST_CONTACT_POINT_INFORMATION:
{
b3SharedMemoryCommandHandle commandHandle = b3InitRequestContactPointInformation(m_physicsClientHandle);
b3SetContactFilterBodyA(commandHandle, 0);
b3SetContactFilterBodyB(commandHandle, 1);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_SAVE_WORLD:
{
b3SharedMemoryCommandHandle commandHandle = b3SaveWorldCommandInit(m_physicsClientHandle, "saveWorld.py");
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_REQUEST_VISUAL_SHAPE_INFO:
{
if (m_selectedBody >= 0)
{
//request visual shape information
b3SharedMemoryCommandHandle commandHandle = b3InitRequestVisualShapeInformation(m_physicsClientHandle, m_selectedBody);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
}
break;
}
case CMD_SET_SHADOW:
{
b3SharedMemoryCommandHandle commandHandle = b3InitRequestCameraImage(m_physicsClientHandle);
float viewMatrix[16];
float projectionMatrix[16];
m_guiHelper->getRenderInterface()->getActiveCamera()->getCameraProjectionMatrix(projectionMatrix);
m_guiHelper->getRenderInterface()->getActiveCamera()->getCameraViewMatrix(viewMatrix);
b3RequestCameraImageSetCameraMatrices(commandHandle, viewMatrix, projectionMatrix);
b3RequestCameraImageSetPixelResolution(commandHandle, camVisualizerWidth, camVisualizerHeight);
bool hasShadow = true;
b3RequestCameraImageSetShadow(commandHandle, hasShadow);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
case CMD_UPDATE_VISUAL_SHAPE:
{
int objectUniqueId = 0;
int linkIndex = -1;
int shapeIndex = -1;
int textureIndex = -2;
double rgbaColor[4] = {0.0, 1.0, 0.0, 1.0};
b3SharedMemoryCommandHandle commandHandle = b3InitUpdateVisualShape2(m_physicsClientHandle, objectUniqueId, linkIndex, shapeIndex);
b3UpdateVisualShapeRGBAColor(commandHandle, rgbaColor);
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
break;
}
default:
{
b3Error("Unknown buttonId");
btAssert(0);
}
};
}
int main(int argc, char* argv[])
{
int i, dofCount , posVarCount, dofIndex, ret ,numJoints, allowSharedMemoryInitialization=0;
int timeout = MAX_TIMEOUT;
int sensorJointIndexLeft=-1;
int sensorJointIndexRight=-1;
const char* urdfFileName = "r2d2.urdf";
double gravx=0, gravy=0, gravz=-9.8;
double timeStep = 1./60.;
double startPosX, startPosY,startPosZ;
int imuLinkIndex = -1;
SharedMemoryCommand_t command;
SharedMemoryStatus_t status;
b3PhysicsClientHandle sm;
b3Printf("timeout = %d\n",timeout);
printf("hello world\n");
sm = b3ConnectSharedMemory( allowSharedMemoryInitialization);
if (b3CanSubmitCommand(sm))
{
ret = b3InitPhysicsParamCommand(&command);
ret = b3PhysicsParamSetGravity(&command, gravx,gravy, gravz);
ret = b3PhysicsParamSetTimeStep(&command, timeStep);
ret = b3SubmitClientCommand(sm, &command);
timeout = MAX_TIMEOUT;
while ((timeout-- > 0) && b3ProcessServerStatus(sm, &status)==0) {}
b3Printf("timeout = %d\n",timeout);
ret = b3LoadUrdfCommandInit(&command, urdfFileName);
//setting the initial position, orientation and other arguments are optional
startPosX =2;
startPosY =3;
startPosZ = 1;
ret = b3LoadUrdfCommandSetStartPosition(&command, startPosX,startPosY,startPosZ);
ret = b3SubmitClientCommand(sm, &command);
timeout = MAX_TIMEOUT;
while ((timeout-- > 0) && b3ProcessServerStatus(sm, &status)==0) {}
b3Printf("timeout = %d\n",timeout);
numJoints = b3GetNumJoints(sm);
for (i=0;i<numJoints;i++)
{
struct b3JointInfo jointInfo;
b3GetJointInfo(sm,i,&jointInfo);
printf("jointInfo[%d].m_jointName=%s\n",i,jointInfo.m_jointName);
//pick the IMU link index based on torso name
if (strstr(jointInfo.m_linkName,"base_link"))
{
imuLinkIndex = i;
}
//pick the joint index based on joint name
if (strstr(jointInfo.m_jointName,"base_to_left_leg"))
{
sensorJointIndexLeft = i;
}
if (strstr(jointInfo.m_jointName,"base_to_right_leg"))
{
sensorJointIndexRight = i;
}
}
if ((sensorJointIndexLeft>=0) || (sensorJointIndexRight>=0))
{
ret = b3CreateSensorCommandInit(&command);
if (imuLinkIndex>=0)
{
ret = b3CreateSensorEnableIMUForLink(&command, imuLinkIndex, 1);
}
if (sensorJointIndexLeft>=0)
{
ret = b3CreateSensorEnable6DofJointForceTorqueSensor(&command, sensorJointIndexLeft, 1);
}
if(sensorJointIndexRight>=0)
{
ret = b3CreateSensorEnable6DofJointForceTorqueSensor(&command, sensorJointIndexRight, 1);
}
ret = b3SubmitClientCommand(sm, &command);
timeout = MAX_TIMEOUT;
while ((timeout-- > 0) && b3ProcessServerStatus(sm, &status)==0) {}
}
ret = b3CreateBoxShapeCommandInit(&command);
ret = b3CreateBoxCommandSetStartPosition(&command, 0,0,-1);
ret = b3CreateBoxCommandSetStartOrientation(&command,0,0,0,1);
ret = b3CreateBoxCommandSetHalfExtents(&command, 10,10,1);
ret = b3SubmitClientCommand(sm, &command);
timeout = MAX_TIMEOUT;
while ((timeout-- > 0) && b3ProcessServerStatus(sm, &status)==0) {}
b3RequestActualStateCommandInit(&command);
ret = b3SubmitClientCommand(sm, &command);
timeout = MAX_TIMEOUT;
while ((timeout-- > 0) && b3ProcessServerStatus(sm, &status)==0) {}
posVarCount =status.m_sendActualStateArgs.m_numDegreeOfFreedomQ;
dofCount =status.m_sendActualStateArgs.m_numDegreeOfFreedomU;
b3Printf("posVarCount = %d\n",posVarCount);
printf("dofCount = %d\n",dofCount);
b3JointControlCommandInit(&command, CONTROL_MODE_VELOCITY);
for ( dofIndex=0;dofIndex<dofCount;dofIndex++)
{
b3JointControlSetDesiredVelocity(&command,dofIndex,1);
b3JointControlSetMaximumForce(&command,dofIndex,100);
}
ret = b3SubmitClientCommand(sm, &command);
timeout = MAX_TIMEOUT;
while ((timeout-- > 0) && b3ProcessServerStatus(sm, &status)==0) {}
///perform some simulation steps for testing
for ( i=0;i<100;i++)
{
ret = b3InitStepSimulationCommand(&command);
ret = b3SubmitClientCommand(sm, &command);
timeout = MAX_TIMEOUT;
while ((timeout-- > 0) && b3ProcessServerStatus(sm, &status)==0) {}
}
b3RequestActualStateCommandInit(&command);
ret = b3SubmitClientCommand(sm, &command);
timeout = MAX_TIMEOUT;
while ((timeout-- > 0) && b3ProcessServerStatus(sm, &status)==0) {}
if (sensorJointIndexLeft>=0)
{
b3Printf("Sensor for joint [%d] = %f,%f,%f\n", sensorJointIndexLeft,
status.m_sendActualStateArgs.m_jointReactionForces[6*sensorJointIndexLeft+0],
status.m_sendActualStateArgs.m_jointReactionForces[6*sensorJointIndexLeft+1],
status.m_sendActualStateArgs.m_jointReactionForces[6*sensorJointIndexLeft+2]);
}
if (sensorJointIndexRight>=0)
{
b3Printf("Sensor for joint [%d] = %f,%f,%f\n", sensorJointIndexRight,
status.m_sendActualStateArgs.m_jointReactionForces[6*sensorJointIndexRight+0],
status.m_sendActualStateArgs.m_jointReactionForces[6*sensorJointIndexRight+1],
status.m_sendActualStateArgs.m_jointReactionForces[6*sensorJointIndexRight+2]);
}
ret = b3InitResetSimulationCommand(&command);
ret = b3SubmitClientCommand(sm, &command);
timeout = MAX_TIMEOUT;
while ((timeout-- > 0) && b3ProcessServerStatus(sm, &status)==0) {}
}
b3DisconnectSharedMemory(sm);
}