Eigen::Matrix4f LinkedCoordinate::getCoordinateTransformation(const RobotNodePtr &origin,
const RobotNodePtr &destination, const RobotPtr &robot){
if (!destination)
THROW_VR_EXCEPTION(format("Destination RobotNodePtr not assigned (LinkedCoordinate::%1%)") % BOOST_CURRENT_FUNCTION);
if (!origin)
THROW_VR_EXCEPTION(format("Origin RobotNodePtr not assigned (LinkedCoordinate::%1%)") % BOOST_CURRENT_FUNCTION);
if (!robot)
THROW_VR_EXCEPTION(format("RobotPtr not assigned (LinkedCoordinate::%1%)") % BOOST_CURRENT_FUNCTION);
if (!robot->hasRobotNode( origin) )
THROW_VR_EXCEPTION(format("Origin robot node\"%1%\" not a member of robot \"%2%\" (LinkedCoordinate::%3%)") % origin->getName() % robot->getName() % BOOST_CURRENT_FUNCTION);
if (!robot->hasRobotNode( destination) )
THROW_VR_EXCEPTION(format("Destination robot node\"%1%\" not a member of robot \"%2%\" (LinkedCoordinate::%3%)") % destination->getName() % robot->getName() % BOOST_CURRENT_FUNCTION);
// std::cout << "Destination: " << destination->getName() <<std::endl << "Origin: " << origin->getName() << std::endl;
// std::cout << "Destination:\n" << destination->getGlobalPose() <<std::endl << "Origin:\n" << origin->getGlobalPose() << std::endl;
return destination->getGlobalPose().inverse() * origin->getGlobalPose();
}
void showRobotWindow::jointValueChanged(int pos)
{
int nr = UI.comboBoxJoint->currentIndex();
if (nr<0 || nr>=(int)currentRobotNodes.size())
return;
float fPos = currentRobotNodes[nr]->getJointLimitLo() + (float)pos / 1000.0f * (currentRobotNodes[nr]->getJointLimitHi() - currentRobotNodes[nr]->getJointLimitLo());
robot->setJointValue(currentRobotNodes[nr],fPos);
UI.lcdNumberJointValue->display((double)fPos);
#if 0
RobotNodePtr rnl = robot->getRobotNode("LeftLeg_TCP");
RobotNodePtr rnr = robot->getRobotNode("RightLeg_TCP");
if (rnl && rnr)
{
cout << "LEFT:" << endl;
MathTools::printMat(rnl->getGlobalPose());
cout << "RIGHT:" << endl;
MathTools::printMat(rnr->getGlobalPose());
}
#endif
}
Eigen::MatrixXf CoMIK::getJacobianOfCoM(RobotNodePtr node)
{
// Get number of degrees of freedom
size_t nDoF = rns->getAllRobotNodes().size();
// Create matrices for the position and the orientation part of the jacobian.
Eigen::MatrixXf position = Eigen::MatrixXf::Zero(3, nDoF);
const std::vector<RobotNodePtr> parentsN = bodyNodeParents[node];
// Iterate over all degrees of freedom
for (size_t i = 0; i < nDoF; i++)
{
RobotNodePtr dof = rns->getNode(i);// bodyNodes[i];
// Check if the tcp is affected by this DOF
if (find(parentsN.begin(), parentsN.end(), dof) != parentsN.end())
{
// Calculus for rotational joints is different as for prismatic joints.
if (dof->isRotationalJoint())
{
// get axis
boost::shared_ptr<RobotNodeRevolute> revolute
= boost::dynamic_pointer_cast<RobotNodeRevolute>(dof);
THROW_VR_EXCEPTION_IF(!revolute, "Internal error: expecting revolute joint");
// todo: find a better way of handling different joint types
Eigen::Vector3f axis = revolute->getJointRotationAxis(coordSystem);
// For CoM-Jacobians only the positional part is necessary
Eigen::Vector3f toTCP = node->getCoMLocal() + node->getGlobalPose().block(0, 3, 3, 1)
- dof->getGlobalPose().block(0, 3, 3, 1);
position.block(0, i, 3, 1) = axis.cross(toTCP);
}
else if (dof->isTranslationalJoint())
{
// -> prismatic joint
boost::shared_ptr<RobotNodePrismatic> prismatic
= boost::dynamic_pointer_cast<RobotNodePrismatic>(dof);
THROW_VR_EXCEPTION_IF(!prismatic, "Internal error: expecting prismatic joint");
// todo: find a better way of handling different joint types
Eigen::Vector3f axis = prismatic->getJointTranslationDirection(coordSystem);
position.block(0, i, 3, 1) = axis;
}
}
}
if (target.rows() == 2)
{
Eigen::MatrixXf result(2, nDoF);
result.row(0) = position.row(0);
result.row(1) = position.row(1);
return result;
}
else if (target.rows() == 1)
{
VR_INFO << "One dimensional CoMs not supported." << endl;
}
return position;
}
