Files
solver/OndselSolver/RackPinJoint.cpp
Aik-Siong Koh e0241dd6d2 New joints for ASMT and MBDyn
GearJoint, RackPinion, Screw, Planar and MBDynCase3orig.mbd
MBDyn Sperical Hinge
2023-11-29 09:40:30 -07:00

60 lines
1.8 KiB
C++

/***************************************************************************
* Copyright (c) 2023 Ondsel, Inc. *
* *
* This file is part of OndselSolver. *
* *
* See LICENSE file for details about copyright. *
***************************************************************************/
#include "RackPinJoint.h"
#include "CREATE.h"
#include "System.h"
#include "RackPinConstraintIJ.h"
using namespace MbD;
MbD::RackPinJoint::RackPinJoint()
{
}
MbD::RackPinJoint::RackPinJoint(const char* str) : Joint(str)
{
}
void MbD::RackPinJoint::initializeLocally()
{
if (!constraints->empty())
{
auto constraint = std::static_pointer_cast<RackPinConstraintIJ>(constraints->front());
constraint->initxIeJeIe();
constraint->initthezIeJe();
}
Joint::initializeLocally();
}
void MbD::RackPinJoint::initializeGlobally()
{
if (constraints->empty())
{
auto rackPinIJ = RackPinConstraintIJ::With(frmI, frmJ);
rackPinIJ->setConstant(std::numeric_limits<double>::min());
rackPinIJ->pitchRadius = pitchRadius;
addConstraint(rackPinIJ);
this->root()->hasChanged = true;
}
else {
Joint::initializeGlobally();
}
}
void MbD::RackPinJoint::connectsItoJ(EndFrmsptr frmIe, EndFrmsptr frmJe)
{
//"OODS J is on pinion. z axis is axis of pinion."
//"OODS I is on rack. x axis is axis of rack. z axis is parallel to axis of pinion."
//"Subsequent prescribed motions may make frmIe, frmJe become prescribed end frames."
//"Use newCopyEndFrameqc to prevent efrms from becoming EndFrameqct."
frmI = frmIe->newCopyEndFrameqc();
frmJ = frmJe->newCopyEndFrameqc();
}