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Create a demo for one motor gripper grasp.

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This commit is contained in:
yunfeibai
2016-09-21 12:08:03 -07:00
parent bb214e823b
commit 27fab2adb5
6 changed files with 528 additions and 7 deletions
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131
examples/RoboticsLearning/GripperGraspExample.cpp
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@@ -10,6 +10,7 @@
#include "../SharedMemory/PhysicsServerSharedMemory.h"
#include "../SharedMemory/PhysicsClientC_API.h"
#include "../CommonInterfaces/CommonParameterInterface.h"
#include "../SharedMemory/SharedMemoryPublic.h"
#include <string>
#include "b3RobotSimAPI.h"
@@ -213,6 +214,120 @@ public:
m_robotSim.setGravity(b3MakeVector3(0,0,-10));
m_robotSim.setNumSimulationSubSteps(4);
}
if ((m_options & eONE_MOTOR_GRASP)!=0)
{
{
SliderParams slider("Vertical velocity",&sGripperVerticalVelocity);
slider.m_minVal=-2;
slider.m_maxVal=2;
m_guiHelper->getParameterInterface()->registerSliderFloatParameter(slider);
}
{
SliderParams slider("Closing velocity",&sGripperClosingTargetVelocity
);
slider.m_minVal=-1;
slider.m_maxVal=1;
m_guiHelper->getParameterInterface()->registerSliderFloatParameter(slider);
}
{
b3RobotSimLoadFileArgs args("");
b3RobotSimLoadFileResults results;
args.m_fileName = "cube_small.urdf";
args.m_startPosition.setValue(0, 0, .107);
args.m_startOrientation.setEulerZYX(0, 0, 0);
args.m_useMultiBody = true;
m_robotSim.loadFile(args, results);
}
{
b3RobotSimLoadFileArgs args("");
args.m_fileName = "gripper/wsg50_one_motor_gripper.sdf";
args.m_fileType = B3_SDF_FILE;
args.m_useMultiBody = true;
b3RobotSimLoadFileResults results;
if (m_robotSim.loadFile(args, results) && results.m_uniqueObjectIds.size()==1)
{
m_gripperIndex = results.m_uniqueObjectIds[0];
int numJoints = m_robotSim.getNumJoints(m_gripperIndex);
b3Printf("numJoints = %d",numJoints);
for (int i=0;i<numJoints;i++)
{
b3JointInfo jointInfo;
m_robotSim.getJointInfo(m_gripperIndex,i,&jointInfo);
b3Printf("joint[%d].m_jointName=%s",i,jointInfo.m_jointName);
}
for (int i=0;i<8;i++)
{
b3JointMotorArgs controlArgs(CONTROL_MODE_VELOCITY);
controlArgs.m_maxTorqueValue = 0.0;
m_robotSim.setJointMotorControl(m_gripperIndex,i,controlArgs);
}
}
}
if (1)
{
b3RobotSimLoadFileArgs args("");
args.m_fileName = "plane.urdf";
args.m_startPosition.setValue(0,0,0);
args.m_startOrientation.setEulerZYX(0,0,0);
args.m_forceOverrideFixedBase = true;
args.m_useMultiBody = true;
b3RobotSimLoadFileResults results;
m_robotSim.loadFile(args,results);
}
m_robotSim.setGravity(b3MakeVector3(0,0,-10));
b3JointInfo sliderJoint1;
sliderJoint1.m_parentFrame[0] = 0;
sliderJoint1.m_parentFrame[1] = 0;
sliderJoint1.m_parentFrame[2] = 0.06;
sliderJoint1.m_parentFrame[3] = 0;
sliderJoint1.m_parentFrame[4] = 0;
sliderJoint1.m_parentFrame[5] = 0;
sliderJoint1.m_parentFrame[6] = 1.0;
sliderJoint1.m_childFrame[0] = 0;
sliderJoint1.m_childFrame[1] = 0;
sliderJoint1.m_childFrame[2] = 0;
sliderJoint1.m_childFrame[3] = 0;
sliderJoint1.m_childFrame[4] = 0;
sliderJoint1.m_childFrame[5] = 0;
sliderJoint1.m_childFrame[6] = 1.0;
sliderJoint1.m_jointAxis[0] = 1.0;
sliderJoint1.m_jointAxis[1] = 0.0;
sliderJoint1.m_jointAxis[2] = 0.0;
sliderJoint1.m_jointType = ePrismaticType;
b3JointInfo sliderJoint2;
sliderJoint2.m_parentFrame[0] = 0;
sliderJoint2.m_parentFrame[1] = 0;
sliderJoint2.m_parentFrame[2] = 0.06;
sliderJoint2.m_parentFrame[3] = 0;
sliderJoint2.m_parentFrame[4] = 0;
sliderJoint2.m_parentFrame[5] = 0;
sliderJoint2.m_parentFrame[6] = 1.0;
sliderJoint2.m_childFrame[0] = 0;
sliderJoint2.m_childFrame[1] = 0;
sliderJoint2.m_childFrame[2] = 0;
sliderJoint2.m_childFrame[3] = 0;
sliderJoint2.m_childFrame[4] = 0;
sliderJoint2.m_childFrame[5] = 1.0;
sliderJoint2.m_childFrame[6] = 0;
sliderJoint2.m_jointAxis[0] = 1.0;
sliderJoint2.m_jointAxis[1] = 0.0;
sliderJoint2.m_jointAxis[2] = 0.0;
sliderJoint2.m_jointType = ePrismaticType;
m_robotSim.createJoint(1, 0, 1, 3, &sliderJoint1);
m_robotSim.createJoint(1, 0, 1, 6, &sliderJoint2);
}
}
virtual void exitPhysics()
@@ -241,6 +356,22 @@ public:
}
}
if ((m_options & eONE_MOTOR_GRASP)!=0)
{
int fingerJointIndices[2]={0,1};
double fingerTargetVelocities[2]={sGripperVerticalVelocity,sGripperClosingTargetVelocity
};
double maxTorqueValues[2]={50.0,50.0};
for (int i=0;i<2;i++)
{
b3JointMotorArgs controlArgs(CONTROL_MODE_VELOCITY);
controlArgs.m_targetVelocity = fingerTargetVelocities[i];
controlArgs.m_maxTorqueValue = maxTorqueValues[i];
controlArgs.m_kd = 1.;
m_robotSim.setJointMotorControl(m_gripperIndex,fingerJointIndices[i],controlArgs);
}
}
m_robotSim.stepSimulation();
}
virtual void renderScene()

1
examples/RoboticsLearning/GripperGraspExample.h
View File

@@ -20,6 +20,7 @@ enum GripperGraspExampleOptions
{
eGRIPPER_GRASP=1,
eTWO_POINT_GRASP=2,
eONE_MOTOR_GRASP=4,
};
class CommonExampleInterface* GripperGraspExampleCreateFunc(struct CommonExampleOptions& options);