bullet3/examples/SharedMemory/BodyJointInfoUtility.h
Erwin Coumans 79d78a325a Start of a urdfEditor.py, limited support to extract a URDF from a PyBullet body.
Use btCylinderShapeZ for URDF cylinder, instead of converting it to a btConvexHullShape.
Implement PyBullet.getCollisionShapeData
Extend PyBullet.getDynamicsInfo / b3GetDynamicsInfo, remove flag (don't rely on API returning a fixed number of elements in a list!)
Extend PyBullet.getJointInfo: add parentIndex
2018-01-03 19:17:28 -08:00

112 lines
3.4 KiB
C++

#ifndef BODY_JOINT_INFO_UTILITY_H
#define BODY_JOINT_INFO_UTILITY_H
#include "Bullet3Common/b3Logging.h"
namespace Bullet
{
class btMultiBodyDoubleData;
class btMultiBodyFloatData;
};
inline char* strDup(const char* const str)
{
#ifdef _WIN32
return _strdup(str);
#else
return strdup(str);
#endif
}
template <typename T, typename U> void addJointInfoFromMultiBodyData(const T* mb, U* bodyJoints, bool verboseOutput)
{
if (mb->m_baseName)
{
if (verboseOutput)
{
b3Printf("mb->m_baseName = %s\n", mb->m_baseName);
}
}
int qOffset = 7;
int uOffset = 6;
for (int link = 0; link < mb->m_numLinks; link++)
{
{
b3JointInfo info;
info.m_jointName[0] = 0;
info.m_linkName[0] = 0;
info.m_flags = 0;
info.m_jointIndex = link;
info.m_qIndex =
(0 < mb->m_links[link].m_posVarCount) ? qOffset : -1;
info.m_uIndex =
(0 < mb->m_links[link].m_dofCount) ? uOffset : -1;
if (mb->m_links[link].m_linkName) {
if (verboseOutput) {
b3Printf("mb->m_links[%d].m_linkName = %s\n", link,
mb->m_links[link].m_linkName);
}
strcpy(info.m_linkName,mb->m_links[link].m_linkName);
}
if (mb->m_links[link].m_jointName) {
if (verboseOutput) {
b3Printf("mb->m_links[%d].m_jointName = %s\n", link,
mb->m_links[link].m_jointName);
}
strcpy(info.m_jointName,mb->m_links[link].m_jointName);
//info.m_jointName = strDup(mb->m_links[link].m_jointName);
}
info.m_jointType = mb->m_links[link].m_jointType;
info.m_jointDamping = mb->m_links[link].m_jointDamping;
info.m_jointFriction = mb->m_links[link].m_jointFriction;
info.m_jointLowerLimit = mb->m_links[link].m_jointLowerLimit;
info.m_jointUpperLimit = mb->m_links[link].m_jointUpperLimit;
info.m_jointMaxForce = mb->m_links[link].m_jointMaxForce;
info.m_jointMaxVelocity = mb->m_links[link].m_jointMaxVelocity;
info.m_parentFrame[0] = mb->m_links[link].m_parentComToThisComOffset.m_floats[0];
info.m_parentFrame[1] = mb->m_links[link].m_parentComToThisComOffset.m_floats[1];
info.m_parentFrame[2] = mb->m_links[link].m_parentComToThisComOffset.m_floats[2];
info.m_parentFrame[3] = mb->m_links[link].m_zeroRotParentToThis.m_floats[0];
info.m_parentFrame[4] = mb->m_links[link].m_zeroRotParentToThis.m_floats[1];
info.m_parentFrame[5] = mb->m_links[link].m_zeroRotParentToThis.m_floats[2];
info.m_parentFrame[6] = mb->m_links[link].m_zeroRotParentToThis.m_floats[3];
info.m_jointAxis[0] = 0;
info.m_jointAxis[1] = 0;
info.m_jointAxis[2] = 0;
info.m_parentIndex = mb->m_links[link].m_parentIndex;
if (info.m_jointType == eRevoluteType)
{
info.m_jointAxis[0] = mb->m_links[link].m_jointAxisTop[0].m_floats[0];
info.m_jointAxis[1] = mb->m_links[link].m_jointAxisTop[0].m_floats[1];
info.m_jointAxis[2] = mb->m_links[link].m_jointAxisTop[0].m_floats[2];
}
if (info.m_jointType == ePrismaticType)
{
info.m_jointAxis[0] = mb->m_links[link].m_jointAxisBottom[0].m_floats[0];
info.m_jointAxis[1] = mb->m_links[link].m_jointAxisBottom[0].m_floats[1];
info.m_jointAxis[2] = mb->m_links[link].m_jointAxisBottom[0].m_floats[2];
}
if ((mb->m_links[link].m_jointType == eRevoluteType) ||
(mb->m_links[link].m_jointType == ePrismaticType)) {
info.m_flags |= JOINT_HAS_MOTORIZED_POWER;
}
bodyJoints->m_jointInfo.push_back(info);
}
qOffset += mb->m_links[link].m_posVarCount;
uOffset += mb->m_links[link].m_dofCount;
}
}
#endif //BODY_JOINT_INFO_UTILITY_H