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https://github.com/bulletphysics/bullet3
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a9b1544a9f
Expose inverse dynamics to Bullet shared memory API, through b3CalculateInverseDynamicsCommandInit and b3GetStatusInverseDynamicsJointForces command/status. See PhysicsClientExeample or pybullet for usage. Add option for Windows and Linux to set python_lib_dir and python_include_dir for premake and --enable_pybullet option Expose inverse dynamics to pybullet: [force] = p.calculateInverseDynamics(objectIndex,[q],[qdot],[acc]) Thanks to Jeff Bingham for the suggestion.
919 lines
28 KiB
C++
919 lines
28 KiB
C++
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#include "PhysicsClientExample.h"
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#include "../CommonInterfaces/CommonMultiBodyBase.h"
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#include "../CommonInterfaces/Common2dCanvasInterface.h"
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#include "SharedMemoryCommon.h"
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#include "../CommonInterfaces/CommonParameterInterface.h"
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#include "PhysicsClientC_API.h"
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#include "PhysicsClient.h"
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//#include "SharedMemoryCommands.h"
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#include "PhysicsLoopBackC_API.h"
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#include "PhysicsDirectC_API.h"
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#include "PhysicsClientC_API.h"
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#include "PhysicsServerSharedMemory.h"
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struct MyMotorInfo2
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{
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btScalar m_velTarget;
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btScalar m_maxForce;
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btScalar m_posTarget;
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int m_uIndex;
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int m_qIndex;
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};
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int camVisualizerWidth = 320;//1024/3;
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int camVisualizerHeight = 240;//768/3;
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#define MAX_NUM_MOTORS 128
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class PhysicsClientExample : public SharedMemoryCommon
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{
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protected:
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b3PhysicsClientHandle m_physicsClientHandle;
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//this m_physicsServer is only used when option eCLIENTEXAMPLE_SERVER is enabled
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PhysicsServerSharedMemory m_physicsServer;
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bool m_wantsTermination;
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btAlignedObjectArray<int> m_userCommandRequests;
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btAlignedObjectArray<int> m_bodyUniqueIds;
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int m_sharedMemoryKey;
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int m_selectedBody;
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int m_prevSelectedBody;
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struct Common2dCanvasInterface* m_canvas;
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int m_canvasIndex;
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void createButton(const char* name, int id, bool isTrigger );
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void createButtons();
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//@todo, add accessor methods
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// MyMotorInfo2 m_motorTargetVelocities[MAX_NUM_MOTORS];
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MyMotorInfo2 m_motorTargetPositions[MAX_NUM_MOTORS];
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int m_numMotors;
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int m_options;
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bool m_isOptionalServerConnected;
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public:
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PhysicsClientExample(GUIHelperInterface* helper, int options);
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virtual ~PhysicsClientExample();
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virtual void initPhysics();
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void selectComboBox(int comboIndex, const char* name)
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{
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if (m_guiHelper && m_guiHelper->getParameterInterface())
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{
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int itemIndex = int(atoi(name));
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int bodyIndex = m_bodyUniqueIds[itemIndex];
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if (m_selectedBody != bodyIndex)
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{
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m_selectedBody = bodyIndex;
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}
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}
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}
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virtual void stepSimulation(float deltaTime);
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virtual void resetCamera()
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{
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float dist = 4;
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float pitch = 193;
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float yaw = 25;
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float targetPos[3]={0,0,0.5};//-3,2.8,-2.5};
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m_guiHelper->resetCamera(dist,pitch,yaw,targetPos[0],targetPos[1],targetPos[2]);
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}
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virtual bool wantsTermination()
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{
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return m_wantsTermination;
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}
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virtual bool isConnected()
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{
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return (m_physicsClientHandle!=0);
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}
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void enqueueCommand(int commandId);
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void prepareAndSubmitCommand(int commandId);
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virtual void exitPhysics(){};
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virtual void renderScene()
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{
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if (m_options == eCLIENTEXAMPLE_SERVER)
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{
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m_physicsServer.renderScene();
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}
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b3DebugLines debugLines;
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b3GetDebugLines(m_physicsClientHandle,&debugLines);
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int numLines = debugLines.m_numDebugLines;
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int lineWidth = 1;
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if (1)
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{
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btAlignedObjectArray<btVector3FloatData> points;
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points.resize(numLines*2);
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btAlignedObjectArray<unsigned int> indices;
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indices.resize(numLines*2);
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for (int i=0;i<numLines;i++)
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{
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points[i*2].m_floats[0] = debugLines.m_linesFrom[i*3+0];
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points[i*2].m_floats[1] = debugLines.m_linesFrom[i*3+1];
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points[i*2].m_floats[2] = debugLines.m_linesFrom[i*3+2];
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points[i*2+1].m_floats[0] = debugLines.m_linesTo[i*3+0];
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points[i*2+1].m_floats[1] = debugLines.m_linesTo[i*3+1];
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points[i*2+1].m_floats[2] = debugLines.m_linesTo[i*3+2];
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indices[i*2] = i*2;
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indices[i*2+1] = i*2+1;
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}
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float color[4] = {0.2,0.2,1,1};
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if (points.size() && indices.size())
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{
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m_guiHelper->getRenderInterface()->drawLines(&points[0].m_floats[0],color,points.size(),sizeof(btVector3FloatData),&indices[0],indices.size(),lineWidth);
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}
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} else
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{
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for (int i=0;i<numLines;i++)
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{
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m_guiHelper->getRenderInterface()->drawLine(debugLines.m_linesFrom,debugLines.m_linesTo,debugLines.m_linesColor,lineWidth);
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}
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}
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}
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void prepareControlCommand(b3SharedMemoryCommandHandle commandHandle)
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{
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for (int i=0;i<m_numMotors;i++)
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{
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btScalar targetPos = m_motorTargetPositions[i].m_posTarget;
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int qIndex = m_motorTargetPositions[i].m_qIndex;
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int uIndex = m_motorTargetPositions[i].m_uIndex;
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static int serial=0;
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serial++;
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// b3Printf("# motors = %d, cmd[%d] qIndex = %d, uIndex = %d, targetPos = %f", m_numMotors, serial, qIndex,uIndex,targetPos);
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b3JointControlSetDesiredPosition(commandHandle, qIndex, targetPos);
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b3JointControlSetDesiredVelocity(commandHandle,uIndex,0);
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b3JointControlSetKp(commandHandle, qIndex, 0.2);
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b3JointControlSetKd(commandHandle, uIndex, 1.);
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b3JointControlSetMaximumForce(commandHandle,uIndex,5000);
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}
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}
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virtual void physicsDebugDraw(int debugFlags)
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{
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if (m_options==eCLIENTEXAMPLE_SERVER)
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{
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m_physicsServer.physicsDebugDraw(debugFlags);
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}
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}
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virtual bool mouseMoveCallback(float x,float y){return false;};
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virtual bool mouseButtonCallback(int button, int state, float x, float y){return false;}
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virtual bool keyboardCallback(int key, int state){return false;}
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virtual void setSharedMemoryKey(int key)
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{
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m_sharedMemoryKey = key;
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}
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};
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void MyComboBoxCallback (int combobox, const char* item, void* userPointer)
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{
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//b3Printf("Item selected %s", item);
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PhysicsClientExample* cl = (PhysicsClientExample*) userPointer;
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b3Assert(cl);
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if (cl)
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{
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cl->selectComboBox(combobox,item);
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}
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}
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void MyCallback(int buttonId, bool buttonState, void* userPtr)
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{
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PhysicsClientExample* cl = (PhysicsClientExample*) userPtr;
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b3Assert(cl);
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if (cl && buttonState)
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{
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cl->enqueueCommand(buttonId);
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}
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}
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void PhysicsClientExample::enqueueCommand(int commandId)
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{
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m_userCommandRequests.push_back(commandId);
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}
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void PhysicsClientExample::prepareAndSubmitCommand(int commandId)
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{
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switch (commandId)
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{
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case CMD_LOAD_URDF:
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{
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b3SharedMemoryCommandHandle commandHandle = b3LoadUrdfCommandInit(m_physicsClientHandle, "kuka_iiwa/model.urdf");
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//setting the initial position, orientation and other arguments are optional
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double startPosX = 0;
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static double startPosY = 1;
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double startPosZ = 0;
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b3LoadUrdfCommandSetStartPosition(commandHandle, startPosX,startPosY,startPosZ);
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startPosY += 2.f;
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// ret = b3LoadUrdfCommandSetUseFixedBase(commandHandle, 1);
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b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
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break;
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}
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case CMD_LOAD_SDF:
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{
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b3SharedMemoryCommandHandle commandHandle = b3LoadSdfCommandInit(m_physicsClientHandle, "kuka_iiwa/model.sdf");
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b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
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break;
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}
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case CMD_REQUEST_CAMERA_IMAGE_DATA:
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{
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///request an image from a simulated camera, using a software renderer.
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b3SharedMemoryCommandHandle commandHandle = b3InitRequestCameraImage(m_physicsClientHandle);
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//b3RequestCameraImageSelectRenderer(commandHandle,ER_BULLET_HARDWARE_OPENGL);
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float viewMatrix[16];
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float projectionMatrix[16];
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m_guiHelper->getRenderInterface()->getActiveCamera()->getCameraProjectionMatrix(projectionMatrix);
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m_guiHelper->getRenderInterface()->getActiveCamera()->getCameraViewMatrix(viewMatrix);
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b3RequestCameraImageSetCameraMatrices(commandHandle, viewMatrix,projectionMatrix);
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b3RequestCameraImageSetPixelResolution(commandHandle, camVisualizerWidth,camVisualizerHeight);
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b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
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break;
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}
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case CMD_CREATE_BOX_COLLISION_SHAPE:
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{
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b3SharedMemoryCommandHandle commandHandle = b3CreateBoxShapeCommandInit(m_physicsClientHandle);
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b3CreateBoxCommandSetStartPosition(commandHandle,0,0,-3);
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b3CreateBoxCommandSetColorRGBA(commandHandle,0,0,1,1);
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b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
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break;
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}
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case CMD_CREATE_RIGID_BODY:
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{
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b3SharedMemoryCommandHandle commandHandle = b3CreateBoxShapeCommandInit(m_physicsClientHandle);
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b3CreateBoxCommandSetStartPosition(commandHandle,0,0,0);
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b3CreateBoxCommandSetMass(commandHandle,1);
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b3CreateBoxCommandSetCollisionShapeType(commandHandle,COLLISION_SHAPE_TYPE_CYLINDER_Y);
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b3CreateBoxCommandSetColorRGBA(commandHandle,1,1,0,1);
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double radius = 0.2;
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double halfHeight = 0.5;
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b3CreateBoxCommandSetHalfExtents(commandHandle,radius,halfHeight,radius);
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b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
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break;
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}
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case CMD_REQUEST_ACTUAL_STATE:
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{
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if (m_selectedBody>=0)
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{
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b3SharedMemoryCommandHandle commandHandle = b3RequestActualStateCommandInit(m_physicsClientHandle,m_selectedBody);
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b3SharedMemoryStatusHandle statusHandle = b3SubmitClientCommandAndWaitStatus(m_physicsClientHandle, commandHandle);
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b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
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int numJoints = b3GetNumJoints(m_physicsClientHandle, m_selectedBody);
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for (int i = 0; i < numJoints; ++i) {
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struct b3JointSensorState sensorState;
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b3GetJointState(m_physicsClientHandle, statusHandle, i, &sensorState);
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b3Printf("Joint %d: %f", i, sensorState.m_jointMotorTorque);
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}
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}
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break;
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};
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case CMD_INIT_POSE:
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{
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if (m_selectedBody>=0)
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{
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b3SharedMemoryCommandHandle commandHandle = b3CreatePoseCommandInit(m_physicsClientHandle,m_selectedBody);
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static int toggle = 0;
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double pos[3] = {0,0,0};
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pos[toggle] = 2;
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toggle++;
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if (toggle>2)
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toggle=0;
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btQuaternion orn;
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orn.setValue(0,0,0,1);
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switch (toggle)
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{
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case 0:
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orn = btQuaternion(btVector3(1,0,0),SIMD_HALF_PI);
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break;
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case 1:
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orn = btQuaternion(btVector3(0,1,0),SIMD_HALF_PI);
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break;
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case 2:
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orn = btQuaternion(btVector3(0,0,1),SIMD_HALF_PI);
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break;
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default:
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orn.setValue(0,0,0,1);
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};
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b3CreatePoseCommandSetBaseOrientation(commandHandle,orn[0],orn[1],orn[2],orn[3]);
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b3CreatePoseCommandSetBasePosition(commandHandle, pos[0],pos[1],pos[2]);
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int numJoints = b3GetNumJoints(m_physicsClientHandle,m_selectedBody);
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static double jointPos = SIMD_PI/2.f;
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for (int i=0;i<numJoints;i++)
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{
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b3JointInfo info;
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b3GetJointInfo(m_physicsClientHandle, m_selectedBody,i, &info);
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if ((info.m_jointType == 0) || (info.m_jointType == 1)) //revolute or prismatic
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{
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b3CreatePoseCommandSetJointPosition(m_physicsClientHandle,commandHandle,i,jointPos);
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}
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}
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jointPos += SIMD_PI/8.0;
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b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
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}
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break;
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}
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case CMD_STEP_FORWARD_SIMULATION:
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{
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b3SharedMemoryCommandHandle commandHandle = b3InitStepSimulationCommand(m_physicsClientHandle);
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b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
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break;
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}
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case CMD_REQUEST_DEBUG_LINES:
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{
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b3SharedMemoryCommandHandle commandHandle = b3InitRequestDebugLinesCommand(m_physicsClientHandle, btIDebugDraw::DBG_DrawWireframe);
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b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
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break;
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}
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case CMD_SEND_DESIRED_STATE:
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{
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if (m_selectedBody>=0)
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{
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// b3SharedMemoryCommandHandle command = b3JointControlCommandInit( m_physicsClientHandle, m_selectedBody, CONTROL_MODE_VELOCITY);
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b3SharedMemoryCommandHandle command = b3JointControlCommandInit2( m_physicsClientHandle, m_selectedBody, CONTROL_MODE_POSITION_VELOCITY_PD);
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// b3Printf("prepare control command for body %d", m_selectedBody);
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prepareControlCommand(command);
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b3SubmitClientCommand(m_physicsClientHandle, command);
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}
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break;
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}
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case CMD_RESET_SIMULATION:
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{
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b3SharedMemoryCommandHandle commandHandle = b3InitResetSimulationCommand(m_physicsClientHandle);
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b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
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break;
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}
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case CMD_SEND_BULLET_DATA_STREAM:
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{
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#if 0
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//this worked, but needs C-API and a streaming options, similar to debug lines
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command.m_type = buttonId;
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cl->enqueueCommand(command);
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#endif
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break;
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}
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case CMD_SEND_PHYSICS_SIMULATION_PARAMETERS: {
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b3SharedMemoryCommandHandle commandHandle = b3InitPhysicsParamCommand(m_physicsClientHandle);
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b3PhysicsParamSetGravity(commandHandle, 0.0, 0.0, -9.8);
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b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
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break;
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}
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case CMD_CALCULATE_INVERSE_DYNAMICS:
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{
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if (m_selectedBody >= 0)
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{
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btAlignedObjectArray<double> jointPositionsQ;
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btAlignedObjectArray<double> jointVelocitiesQdot;
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btAlignedObjectArray<double> jointAccelerations;
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int numJoints = b3GetNumJoints(m_physicsClientHandle, m_selectedBody);
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if (numJoints)
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{
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b3Printf("Compute inverse dynamics for joint accelerations:");
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jointPositionsQ.resize(numJoints);
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jointVelocitiesQdot.resize(numJoints);
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jointAccelerations.resize(numJoints);
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for (int i = 0; i < numJoints; i++)
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{
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jointAccelerations[i] = 100;
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b3Printf("Desired joint acceleration[%d]=%f", i, jointAccelerations[i]);
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}
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b3SharedMemoryCommandHandle commandHandle = b3CalculateInverseDynamicsCommandInit(m_physicsClientHandle,
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m_selectedBody, &jointPositionsQ[0], &jointVelocitiesQdot[0], &jointAccelerations[0]);
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b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
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}
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}
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break;
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}
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default:
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{
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b3Error("Unknown buttonId");
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btAssert(0);
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}
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};
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}
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PhysicsClientExample::PhysicsClientExample(GUIHelperInterface* helper, int options)
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:SharedMemoryCommon(helper),
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m_physicsClientHandle(0),
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m_wantsTermination(false),
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m_sharedMemoryKey(SHARED_MEMORY_KEY),
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m_selectedBody(-1),
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m_prevSelectedBody(-1),
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m_numMotors(0),
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m_options(options),
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m_isOptionalServerConnected(false),
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m_canvas(0)
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{
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b3Printf("Started PhysicsClientExample\n");
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}
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PhysicsClientExample::~PhysicsClientExample()
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{
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if (m_physicsClientHandle)
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{
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b3ProcessServerStatus(m_physicsClientHandle);
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b3DisconnectSharedMemory(m_physicsClientHandle);
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}
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if (m_options == eCLIENTEXAMPLE_SERVER)
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{
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bool deInitializeSharedMemory = true;
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m_physicsServer.disconnectSharedMemory(deInitializeSharedMemory);
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}
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if (m_canvas && (m_canvasIndex>=0))
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{
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m_canvas->destroyCanvas(m_canvasIndex);
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}
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b3Printf("~PhysicsClientExample\n");
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}
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void PhysicsClientExample::createButton(const char* name, int buttonId, bool isTrigger )
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{
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ButtonParams button(name,buttonId, isTrigger);
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button.m_callback = MyCallback;
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button.m_userPointer = this;
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m_guiHelper->getParameterInterface()->registerButtonParameter(button);
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}
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void PhysicsClientExample::createButtons()
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{
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bool isTrigger = false;
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if (m_guiHelper && m_guiHelper->getParameterInterface())
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{
|
|
m_guiHelper->getParameterInterface()->removeAllParameters();
|
|
|
|
createButton("Load URDF",CMD_LOAD_URDF, isTrigger);
|
|
createButton("Load SDF",CMD_LOAD_SDF, isTrigger);
|
|
createButton("Get Camera Image",CMD_REQUEST_CAMERA_IMAGE_DATA,isTrigger);
|
|
createButton("Step Sim",CMD_STEP_FORWARD_SIMULATION, isTrigger);
|
|
createButton("Send Bullet Stream",CMD_SEND_BULLET_DATA_STREAM, isTrigger);
|
|
if (m_options!=eCLIENTEXAMPLE_SERVER)
|
|
{
|
|
createButton("Get State",CMD_REQUEST_ACTUAL_STATE, isTrigger);
|
|
}
|
|
createButton("Send Desired State",CMD_SEND_DESIRED_STATE, isTrigger);
|
|
createButton("Create Box Collider",CMD_CREATE_BOX_COLLISION_SHAPE,isTrigger);
|
|
createButton("Create Cylinder Body",CMD_CREATE_RIGID_BODY,isTrigger);
|
|
createButton("Reset Simulation",CMD_RESET_SIMULATION,isTrigger);
|
|
createButton("Initialize Pose",CMD_INIT_POSE, isTrigger);
|
|
createButton("Set gravity", CMD_SEND_PHYSICS_SIMULATION_PARAMETERS, isTrigger);
|
|
createButton("Compute Inverse Dynamics", CMD_CALCULATE_INVERSE_DYNAMICS, isTrigger);
|
|
|
|
if (m_bodyUniqueIds.size())
|
|
{
|
|
if (m_selectedBody<0)
|
|
m_selectedBody = 0;
|
|
|
|
ComboBoxParams comboParams;
|
|
comboParams.m_comboboxId = 0;
|
|
comboParams.m_numItems = m_bodyUniqueIds.size();
|
|
comboParams.m_startItem = m_selectedBody;
|
|
comboParams.m_callback = MyComboBoxCallback;
|
|
comboParams.m_userPointer = this;
|
|
//todo: get the real object name
|
|
|
|
const char** blarray = new const char*[m_bodyUniqueIds.size()];
|
|
|
|
for (int i=0;i<m_bodyUniqueIds.size();i++)
|
|
{
|
|
char* bla = new char[16];
|
|
sprintf(bla,"%d", i);
|
|
blarray[i] = bla;
|
|
comboParams.m_items=blarray;//{&bla};
|
|
}
|
|
m_guiHelper->getParameterInterface()->registerComboBox(comboParams);
|
|
}
|
|
|
|
|
|
if (m_physicsClientHandle && m_selectedBody>=0)
|
|
{
|
|
m_numMotors = 0;
|
|
|
|
int numJoints = b3GetNumJoints(m_physicsClientHandle,m_selectedBody);
|
|
for (int i=0;i<numJoints;i++)
|
|
{
|
|
b3JointInfo info;
|
|
b3GetJointInfo(m_physicsClientHandle,m_selectedBody,i,&info);
|
|
b3Printf("Joint %s at q-index %d and u-index %d\n",info.m_jointName,info.m_qIndex,info.m_uIndex);
|
|
|
|
if (info.m_flags & JOINT_HAS_MOTORIZED_POWER)
|
|
{
|
|
if (m_numMotors<MAX_NUM_MOTORS)
|
|
{
|
|
char motorName[1024];
|
|
sprintf(motorName,"%s q", info.m_jointName);
|
|
// MyMotorInfo2* motorInfo = &m_motorTargetVelocities[m_numMotors];
|
|
MyMotorInfo2* motorInfo = &m_motorTargetPositions[m_numMotors];
|
|
motorInfo->m_velTarget = 0.f;
|
|
motorInfo->m_posTarget = 0.f;
|
|
motorInfo->m_uIndex = info.m_uIndex;
|
|
motorInfo->m_qIndex = info.m_qIndex;
|
|
|
|
// SliderParams slider(motorName,&motorInfo->m_velTarget);
|
|
// slider.m_minVal=-4;
|
|
// slider.m_maxVal=4;
|
|
SliderParams slider(motorName,&motorInfo->m_posTarget);
|
|
slider.m_minVal=-4;
|
|
slider.m_maxVal=4;
|
|
if (m_guiHelper && m_guiHelper->getParameterInterface())
|
|
{
|
|
m_guiHelper->getParameterInterface()->registerSliderFloatParameter(slider);
|
|
}
|
|
m_numMotors++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
void PhysicsClientExample::initPhysics()
|
|
{
|
|
if (m_guiHelper && m_guiHelper->getParameterInterface())
|
|
{
|
|
int upAxis = 2;
|
|
m_guiHelper->setUpAxis(upAxis);
|
|
|
|
createButtons();
|
|
|
|
} else
|
|
{
|
|
MyCallback(CMD_LOAD_URDF, true, this);
|
|
MyCallback(CMD_STEP_FORWARD_SIMULATION,true,this);
|
|
MyCallback(CMD_STEP_FORWARD_SIMULATION,true,this);
|
|
MyCallback(CMD_RESET_SIMULATION,true,this);
|
|
}
|
|
|
|
m_selectedBody = -1;
|
|
m_prevSelectedBody = -1;
|
|
|
|
{
|
|
m_canvas = m_guiHelper->get2dCanvasInterface();
|
|
if (m_canvas)
|
|
{
|
|
|
|
|
|
m_canvasIndex = m_canvas->createCanvas("Synthetic Camera",camVisualizerWidth, camVisualizerHeight);
|
|
|
|
for (int i=0;i<camVisualizerWidth;i++)
|
|
{
|
|
for (int j=0;j<camVisualizerHeight;j++)
|
|
{
|
|
unsigned char red=255;
|
|
unsigned char green=255;
|
|
unsigned char blue=255;
|
|
unsigned char alpha=255;
|
|
if (i==j)
|
|
{
|
|
red = 0;
|
|
green=0;
|
|
blue=0;
|
|
}
|
|
m_canvas->setPixel(m_canvasIndex,i,j,red,green,blue,alpha);
|
|
}
|
|
}
|
|
m_canvas->refreshImageData(m_canvasIndex);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (m_options == eCLIENTEXAMPLE_SERVER)
|
|
{
|
|
m_isOptionalServerConnected = m_physicsServer.connectSharedMemory( m_guiHelper);
|
|
}
|
|
|
|
if (m_options == eCLIENTEXAMPLE_DIRECT)
|
|
{
|
|
m_physicsClientHandle = b3ConnectPhysicsDirect();
|
|
} else
|
|
{
|
|
m_physicsClientHandle = b3ConnectSharedMemory(m_sharedMemoryKey);
|
|
//m_physicsClientHandle = b3ConnectPhysicsLoopback(SHARED_MEMORY_KEY);
|
|
}
|
|
|
|
if (!b3CanSubmitCommand(m_physicsClientHandle))
|
|
{
|
|
b3Warning("Cannot connect to physics client");
|
|
}
|
|
|
|
}
|
|
|
|
|
|
void PhysicsClientExample::stepSimulation(float deltaTime)
|
|
{
|
|
|
|
if (m_options == eCLIENTEXAMPLE_SERVER)
|
|
{
|
|
for (int i=0;i<100;i++)
|
|
{
|
|
m_physicsServer.processClientCommands();
|
|
}
|
|
}
|
|
|
|
if (m_prevSelectedBody != m_selectedBody)
|
|
{
|
|
createButtons();
|
|
m_prevSelectedBody = m_selectedBody;
|
|
}
|
|
|
|
//while (!b3CanSubmitCommand(m_physicsClientHandle))
|
|
{
|
|
b3SharedMemoryStatusHandle status = b3ProcessServerStatus(m_physicsClientHandle);
|
|
bool hasStatus = (status != 0);
|
|
if (hasStatus)
|
|
{
|
|
|
|
int statusType = b3GetStatusType(status);
|
|
if (statusType == CMD_ACTUAL_STATE_UPDATE_COMPLETED)
|
|
{
|
|
//b3Printf("bla\n");
|
|
}
|
|
if (statusType ==CMD_CAMERA_IMAGE_COMPLETED)
|
|
{
|
|
// static int counter=0;
|
|
// char msg[1024];
|
|
// sprintf(msg,"Camera image %d OK\n",counter++);
|
|
b3CameraImageData imageData;
|
|
b3GetCameraImageData(m_physicsClientHandle,&imageData);
|
|
if (m_canvas && m_canvasIndex >=0)
|
|
{
|
|
for (int i=0;i<camVisualizerWidth;i++)
|
|
{
|
|
for (int j=0;j<camVisualizerHeight;j++)
|
|
{
|
|
int xIndex = int(float(i)*(float(imageData.m_pixelWidth)/float(camVisualizerWidth)));
|
|
int yIndex = int(float(j)*(float(imageData.m_pixelHeight)/float(camVisualizerHeight)));
|
|
btClamp(yIndex,0,imageData.m_pixelHeight);
|
|
btClamp(xIndex,0,imageData.m_pixelWidth);
|
|
int bytesPerPixel = 4; //RGBA
|
|
|
|
int pixelIndex = (xIndex+yIndex*imageData.m_pixelWidth)*bytesPerPixel;
|
|
m_canvas->setPixel(m_canvasIndex,i,j,
|
|
imageData.m_rgbColorData[pixelIndex],
|
|
imageData.m_rgbColorData[pixelIndex+1],
|
|
imageData.m_rgbColorData[pixelIndex+2],
|
|
255); //alpha set to 255
|
|
}
|
|
}
|
|
m_canvas->refreshImageData(m_canvasIndex);
|
|
}
|
|
|
|
// b3Printf(msg);
|
|
}
|
|
if (statusType == CMD_CALCULATED_INVERSE_DYNAMICS_COMPLETED)
|
|
{
|
|
int bodyUniqueId;
|
|
int dofCount;
|
|
|
|
b3GetStatusInverseDynamicsJointForces(status,
|
|
&bodyUniqueId,
|
|
&dofCount,
|
|
0);
|
|
|
|
btAlignedObjectArray<double> jointForces;
|
|
if (dofCount)
|
|
{
|
|
jointForces.resize(dofCount);
|
|
b3GetStatusInverseDynamicsJointForces(status,
|
|
0,
|
|
0,
|
|
&jointForces[0]);
|
|
for (int i = 0; i < dofCount; i++)
|
|
{
|
|
b3Printf("jointForces[%d]=%f", i, jointForces[i]);
|
|
}
|
|
}
|
|
|
|
}
|
|
if (statusType == CMD_CALCULATED_INVERSE_DYNAMICS_FAILED)
|
|
{
|
|
b3Warning("Inverse Dynamics computations failed");
|
|
}
|
|
|
|
if (statusType == CMD_CAMERA_IMAGE_FAILED)
|
|
{
|
|
b3Warning("Camera image FAILED\n");
|
|
}
|
|
|
|
if (statusType == CMD_SDF_LOADING_COMPLETED)
|
|
{
|
|
int bodyIndicesOut[1024];
|
|
int bodyCapacity = 1024;
|
|
int numBodies = b3GetStatusBodyIndices(status, bodyIndicesOut, bodyCapacity);
|
|
if (numBodies > bodyCapacity)
|
|
{
|
|
b3Warning("loadSDF number of bodies (%d) exceeds the internal body capacity (%d)",numBodies, bodyCapacity);
|
|
} else
|
|
{
|
|
for (int i=0;i<numBodies;i++)
|
|
{
|
|
int bodyUniqueId = bodyIndicesOut[i];
|
|
m_bodyUniqueIds.push_back(bodyUniqueId);
|
|
int numJoints = b3GetNumJoints(m_physicsClientHandle,bodyUniqueId);
|
|
if (numJoints>0)
|
|
{
|
|
m_selectedBody = bodyUniqueId;
|
|
}
|
|
/* int numJoints = b3GetNumJoints(m_physicsClientHandle,bodyUniqueId);
|
|
b3Printf("numJoints = %d", numJoints);
|
|
for (int i=0;i<numJoints;i++)
|
|
{
|
|
b3JointInfo info;
|
|
b3GetJointInfo(m_physicsClientHandle,bodyUniqueId,i,&info);
|
|
b3Printf("Joint %s at q-index %d and u-index %d\n",info.m_jointName,info.m_qIndex,info.m_uIndex);
|
|
}
|
|
|
|
*/
|
|
}
|
|
}
|
|
|
|
//int numJoints = b3GetNumJoints(m_physicsClientHandle,bodyIndex);
|
|
|
|
//int bodyIndex = b3GetStatusBodyIndex(status);
|
|
/*if (bodyIndex>=0)
|
|
{
|
|
int numJoints = b3GetNumJoints(m_physicsClientHandle,bodyIndex);
|
|
|
|
for (int i=0;i<numJoints;i++)
|
|
{
|
|
b3JointInfo info;
|
|
b3GetJointInfo(m_physicsClientHandle,bodyIndex,i,&info);
|
|
b3Printf("Joint %s at q-index %d and u-index %d\n",info.m_jointName,info.m_qIndex,info.m_uIndex);
|
|
}
|
|
ComboBoxParams comboParams;
|
|
comboParams.m_comboboxId = bodyIndex;
|
|
comboParams.m_numItems = 1;
|
|
comboParams.m_startItem = 0;
|
|
comboParams.m_callback = MyComboBoxCallback;
|
|
comboParams.m_userPointer = this;
|
|
const char* bla = "bla";
|
|
const char* blarray[1];
|
|
blarray[0] = bla;
|
|
|
|
comboParams.m_items=blarray;//{&bla};
|
|
m_guiHelper->getParameterInterface()->registerComboBox(comboParams);
|
|
}
|
|
*/
|
|
}
|
|
|
|
|
|
if (statusType == CMD_URDF_LOADING_COMPLETED)
|
|
{
|
|
int bodyIndex = b3GetStatusBodyIndex(status);
|
|
if (bodyIndex>=0)
|
|
{
|
|
m_bodyUniqueIds.push_back(bodyIndex);
|
|
m_selectedBody = bodyIndex;
|
|
int numJoints = b3GetNumJoints(m_physicsClientHandle,bodyIndex);
|
|
|
|
for (int i=0;i<numJoints;i++)
|
|
{
|
|
b3JointInfo info;
|
|
b3GetJointInfo(m_physicsClientHandle,bodyIndex,i,&info);
|
|
b3Printf("Joint %s at q-index %d and u-index %d\n",info.m_jointName,info.m_qIndex,info.m_uIndex);
|
|
}
|
|
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (b3CanSubmitCommand(m_physicsClientHandle))
|
|
{
|
|
if (m_userCommandRequests.size())
|
|
{
|
|
//b3Printf("Outstanding user command requests: %d\n", m_userCommandRequests.size());
|
|
int commandId = m_userCommandRequests[0];
|
|
|
|
//a manual 'pop_front', we don't use 'remove' because it will re-order the commands
|
|
for (int i=1;i<m_userCommandRequests.size();i++)
|
|
{
|
|
m_userCommandRequests[i-1] = m_userCommandRequests[i];
|
|
}
|
|
|
|
m_userCommandRequests.pop_back();
|
|
|
|
//for the CMD_RESET_SIMULATION we need to do something special: clear the GUI sliders
|
|
if (commandId ==CMD_RESET_SIMULATION)
|
|
{
|
|
m_selectedBody = -1;
|
|
m_numMotors=0;
|
|
m_bodyUniqueIds.clear();
|
|
createButtons();
|
|
b3SharedMemoryCommandHandle commandHandle = b3InitResetSimulationCommand(m_physicsClientHandle);
|
|
if (m_options == eCLIENTEXAMPLE_SERVER)
|
|
{
|
|
b3SubmitClientCommand(m_physicsClientHandle, commandHandle);
|
|
while (!b3CanSubmitCommand(m_physicsClientHandle))
|
|
{
|
|
m_physicsServer.processClientCommands();
|
|
b3SharedMemoryStatusHandle status = b3ProcessServerStatus(m_physicsClientHandle);
|
|
bool hasStatus = (status != 0);
|
|
if (hasStatus)
|
|
{
|
|
//int statusType = b3GetStatusType(status);
|
|
//b3Printf("Status after reset: %d",statusType);
|
|
}
|
|
}
|
|
} else
|
|
{
|
|
prepareAndSubmitCommand(commandId);
|
|
}
|
|
} else
|
|
{
|
|
prepareAndSubmitCommand(commandId);
|
|
}
|
|
|
|
} else
|
|
{
|
|
if (m_numMotors)
|
|
{
|
|
enqueueCommand(CMD_SEND_DESIRED_STATE);
|
|
}
|
|
enqueueCommand(CMD_STEP_FORWARD_SIMULATION);
|
|
if (m_options != eCLIENTEXAMPLE_SERVER)
|
|
{
|
|
//enqueueCommand(CMD_REQUEST_DEBUG_LINES);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
}
|
|
|
|
extern int gSharedMemoryKey;
|
|
|
|
|
|
class CommonExampleInterface* PhysicsClientCreateFunc(struct CommonExampleOptions& options)
|
|
{
|
|
PhysicsClientExample* example = new PhysicsClientExample(options.m_guiHelper, options.m_option);
|
|
if (gSharedMemoryKey>=0)
|
|
{
|
|
example->setSharedMemoryKey(gSharedMemoryKey);
|
|
}
|
|
return example;
|
|
}
|
|
|