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FedemDB.C
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FedemDB.C
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// SPDX-FileCopyrightText: 2023 SAP SE
//
// SPDX-License-Identifier: Apache-2.0
//
// This file is part of FEDEM - https://openfedem.org
////////////////////////////////////////////////////////////////////////////////
/*!
\file FedemDB.C
\brief Exported global functions for accessing the Fedem mechanism model.
\details This file contains a collection of global functions serving as
the API for creating and accessing a Fedem mechanism model from python.
*/
#include "vpmDB/FmModelLoader.H"
#include "vpmDB/FmSolverInput.H"
#include "vpmDB/FmAnalysis.H"
#include "vpmDB/FmMechanism.H"
#include "vpmDB/FmSubAssembly.H"
#include "vpmDB/FmTriad.H"
#include "vpmDB/FmPart.H"
#include "vpmDB/FmBeam.H"
#include "vpmDB/FmBeamProperty.H"
#include "vpmDB/FmMaterialProperty.H"
#include "vpmDB/FmAxialSpring.H"
#include "vpmDB/FmAxialDamper.H"
#include "vpmDB/FmRigidJoint.H"
#include "vpmDB/FmRevJoint.H"
#include "vpmDB/FmBallJoint.H"
#include "vpmDB/FmFreeJoint.H"
#include "vpmDB/FmPrismJoint.H"
#include "vpmDB/FmCylJoint.H"
#include "vpmDB/FmCamJoint.H"
#include "vpmDB/FmLoad.H"
#include "vpmDB/FmEngine.H"
#include "vpmDB/FmfMathExpr.H"
#include "vpmDB/FmfSinusoidal.H"
#include "vpmDB/FmfLinVar.H"
#include "vpmDB/FmfConstant.H"
#include "vpmDB/FmfScale.H"
#include "vpmDB/FmfRamp.H"
#include "vpmDB/FmfLimRamp.H"
#include "vpmDB/FmfDeviceFunction.H"
#include "vpmDB/FmfExternalFunction.H"
#include "vpmDB/FmStrainRosette.H"
#include "vpmDB/FmUserDefinedElement.H"
#include "vpmDB/FmDB.H"
#include "vpmDB/FmFileSys.H"
#include "vpmDB/FmCreate.H"
#include "vpmDB/Icons/FmIconPixmapsMain.H"
#include "FiUserElmPlugin/FiUserElmPlugin.H"
#include "FFaFunctionLib/FFaUserFuncPlugin.H"
#include "FFlLib/FFlMemPool.H"
#include "FFlLib/FFlFEParts/FFlAllFEParts.H"
#include "FFlLib/FFlIOAdaptors/FFlAllIOAdaptors.H"
#include "FFaLib/FFaCmdLineArg/FFaCmdLineArg.H"
#include "FFaLib/FFaDefinitions/FFaMsg.H"
#include "FFaLib/FFaOS/FFaFilePath.H"
#include <cstring>
#include <cstdlib>
#include <fstream>
#if defined(win32) || defined(win64)
#include <windows.h>
#define DLLexport(ret) extern "C" __declspec(dllexport) ret
#else
#define DLLexport(ret) extern "C" ret
#endif
static IntVec typeMap; //!< Python-to-Fedem object type mapping
static Strings funcMap; //!< Channel-to-tag input function mapping
/*!
\brief Safe mapping from object type index to class Type ID.
*/
inline int classType (int objType)
{
return objType < 0 || objType >= (int)typeMap.size() ? 0 : typeMap[objType];
}
/*!
\brief Initializes the channel-to-tag input function mapping.
*/
static bool initFuncMap ()
{
FmfExternalFunction* fn = NULL;
std::vector<FmEngine*> engines;
FmDB::getAllEngines(engines);
for (FmEngine* eng : engines)
if ((fn = dynamic_cast<FmfExternalFunction*>(eng->getFunction())))
{
size_t channel = fn->channel.getValue();
if (channel > funcMap.size() && !eng->getTag().empty())
funcMap.resize(channel);
if (channel <= funcMap.size())
funcMap[channel-1] = eng->getTag();
}
return !funcMap.empty();
}
/*!
\brief A sub-class of FFaMsg that writes the list-messages to the log-file.
*/
class FileMsg : public FFaMsg
{
std::ofstream os; //!< File stream for log-messages
public:
//! \brief The constructor opens the log-file \a logf in append mode.
FileMsg(const std::string& logf)
{
os.open(logf.c_str(),std::ios_base::app);
if (!os)
std::cerr <<" *** Failed to open log-file "<< logf <<"\n"
<<" Output will be written to console instead."<< std::endl;
}
//! \brief The destructor closes the log-file.
virtual ~FileMsg() { if (os) os.close(); }
protected:
//! \brief Writes the \a msg to the log-file.
virtual void listVt(const std::string& msg, bool)
{
if (os)
os << msg << std::flush;
else
std::cout << msg << std::flush;
}
//! \brief Writes the \a msg to the log-file.
virtual int dialogVt(const std::string& msg, const FFaDialogType, const char**)
{
if (os)
os << msg << std::endl;
else
std::cout << msg << std::endl;
return -1;
}
};
/*!
\brief Opens the log-file associated with the given model file.
*/
static void openAssociatedLogFile (const char* fmmFile)
{
std::string logFile(fmmFile);
size_t idot = logFile.find_last_of('.');
if (idot < logFile.size())
logFile.replace(idot,std::string::npos,".log");
else
logFile.append(".log");
FFaMsg::setMessager(new FileMsg(logFile));
}
/*!
\brief Erases all dynamic objects from memory.
*/
static void cleanUpMemory ()
{
FmDB::eraseAll(true);
FFl::releaseAllReaders();
FFl::releaseAllElements();
FFlMemPool::deleteAllLinkMemPools();
FFaMsg::setMessager();
funcMap.clear();
}
////////////////////////////////////////////////////////////////////////////////
DLLexport(void) FmInit (const char* plugin1, const char* plugin2)
{
#ifdef FM_DEBUG
std::cout <<"\nFmInit()"<< std::endl;
if (plugin1) std::cout <<"\tPlugin1 = "<< plugin1 << std::endl;
if (plugin2) std::cout <<"\tPlugin2 = "<< plugin2 << std::endl;
#endif
const char* program = "FedemDB";
FFaCmdLineArg::init(1,const_cast<char**>(&program));
// Add command-line options that will be attempted evaluated
FFaCmdLineArg::instance()->addOption("memPoll",false,"Stop execution for memory polling");
FFaCmdLineArg::instance()->addOption("allow3DofAttach",true,"Allow triads to be attached to 3-DOF nodes");
FFaCmdLineArg::instance()->addOption("allowDepAttach",false,"Allow triads to be attached to dependent RGD nodes");
FFaCmdLineArg::instance()->addOption("convertToLinear",1,"Convert parabolic shell and beam elements to linears");
FFaCmdLineArg::instance()->addOption("ID_increment",0,"User ID increment");
FFaCmdLineArg::instance()->addOption("reUseUserID",false,"Fill holes in user ID range");
// Initialize the model database data structure
FmDB::init();
// Initialize the object type mapping (see the class FmType in enums.py)
typeMap = {
FmSimulationModelBase::getClassTypeID(),
FmTriad::getClassTypeID(),
FmBeam::getClassTypeID(),
FmPart::getClassTypeID(),
FmBeamProperty::getClassTypeID(),
FmMaterialProperty::getClassTypeID(),
FmJointBase::getClassTypeID(),
FmRigidJoint::getClassTypeID(),
FmRevJoint::getClassTypeID(),
FmBallJoint::getClassTypeID(),
FmFreeJoint::getClassTypeID(),
FmPrismJoint::getClassTypeID(),
FmCylJoint::getClassTypeID(),
FmCamJoint::getClassTypeID(),
FmLoad::getClassTypeID(),
FmEngine::getClassTypeID(),
FmSensorBase::getClassTypeID(),
FmAxialSpring::getClassTypeID(),
FmAxialDamper::getClassTypeID(),
FmStrainRosette::getClassTypeID(),
FmUserDefinedElement::getClassTypeID()
};
// Lambda function for loading plugin libraries (user-defined functions/elements)
auto&& loadPlugin = [](const std::string& plugin)
{
char signature[128];
bool loaded = false;
if (FFaUserFuncPlugin::instance()->validate(plugin,128,signature))
loaded = FFaUserFuncPlugin::instance()->load(plugin);
else if (FiUserElmPlugin::instance()->validate(plugin,128,signature))
loaded = FiUserElmPlugin::instance()->load(plugin);
else
ListUI <<"\nWarning : Ignoring plugin specification \""<< plugin <<"\"\n";
if (loaded) ListUI <<" "<< signature <<"\n";
return loaded;
};
// Try to load the specified plugin(s)
if (plugin1) loadPlugin(plugin1);
if (plugin2) loadPlugin(plugin2);
}
DLLexport(void) FmNew (const char* newFile)
{
#ifdef FM_DEBUG
std::cout <<"\nFmNew(";
if (newFile) std::cout << newFile;
std::cout <<")"<< std::endl;
#endif
if (FmDB::getFreeBaseID() > 1)
cleanUpMemory();
FmMechanism* mech = NULL;
std::string newName = newFile ? newFile : "untitled.fmm";
if (Fedem::loadTemplate(newName) > 1)
{
mech = FmDB::getMechanismObject();
initFuncMap();
Fedem::loadParts(); // In case a model with FE parts is used as template
}
else
{
mech = FmDB::newMechanism();
mech->syncPath(newName, newFile ? true : false);
}
if (newFile)
openAssociatedLogFile(newFile);
FmDB::getActiveAnalysis();
// Store paths to plugin libraries, if loaded
const char* udePlugin = FiUserElmPlugin::instance()->getLibrary();
const char* udfPlugin = FFaUserFuncPlugin::instance()->getLibrary();
if (udePlugin) mech->activeElementPlugin.setValue(udePlugin);
if (udfPlugin) mech->activeFunctionPlugin.setValue(udfPlugin);
}
DLLexport(bool) FmOpen (const char* fmmFile)
{
#ifdef FM_DEBUG
std::cout <<"\nFmOpen("<< fmmFile <<")"<< std::endl;
#endif
if (FmDB::getFreeBaseID() > 1)
cleanUpMemory();
openAssociatedLogFile(fmmFile);
if (Fedem::loadModel(fmmFile,fmmFile,'W') <= 0)
return false;
if (initFuncMap())
{
ListUI <<"\n --> External function mapping:\n";
for (size_t channelIdx = 0; channelIdx < funcMap.size(); channelIdx++)
if (!funcMap[channelIdx].empty())
ListUI <<" "<< 1+channelIdx <<" "<< funcMap[channelIdx] <<"\n";
}
return Fedem::loadParts();
}
DLLexport(void) FmClose (bool removeSingletons = false)
{
#ifdef FM_DEBUG
std::cout <<"\nFmClose()"<< std::endl;
#endif
cleanUpMemory();
if (removeSingletons)
{
FmDB::removeInstances();
FFaCmdLineArg::removeInstance();
FFaUserFuncPlugin::removeInstance();
FiUserElmPlugin::removeInstance();
}
}
DLLexport(int) FmCount (int objType)
{
return FmDB::getObjectCount(classType(objType));
}
DLLexport(int) FmGetObjects (int* baseId, int objType, const char* tag = NULL)
{
std::vector<FmModelMemberBase*> objs;
FmDB::getAllOfType(objs,classType(objType),NULL,tag);
for (FmModelMemberBase* obj : objs)
*(baseId++) = obj->getBaseID();
#ifdef FM_DEBUG
std::cout <<"FmGetObjects("<< objType;
if (tag) std::cout <<",\","<< tag <<"\"";
std::cout <<"): "<< objs.size() << std::endl;
#endif
return objs.size();
}
DLLexport(int) FmTagObjects (const int* baseId, int n, const char* tag)
{
int nTagged = 0;
for (int ix = 0; ix < n; ix++)
{
FmModelMemberBase* obj = FmDB::findObject(baseId[ix]);
if (obj && obj->setTag(tag))
nTagged++;
}
#ifdef FM_DEBUG
std::cout <<"FmTagObjects("<< n <<",\""<< tag <<"\""<<"): "
<< nTagged << std::endl;
#endif
return nTagged;
}
/*!
\brief Helper searching for an object of given type and base- or user ID.
\details If \a id is negative while \a assumeUserId is \e true,
then \a -id is interpreted as the base ID of the object to search for.
*/
template<class T> bool FmFind (int id, T*& obj, bool assumeUserId = false)
{
if (!assumeUserId) // Assume base ID
obj = dynamic_cast<T*>(FmDB::findObject(id));
else if (id >= 0) // Assume user ID
obj = dynamic_cast<T*>(FmDB::findID(T::getClassTypeID(),id));
else // Assume the absolute value is the base ID
obj = dynamic_cast<T*>(FmDB::findObject(-id));
return obj != NULL;
}
/*!
\brief Helper searching for a function with given user ID.
\details If \a fid is negative, its absolute value is interpreted
as the base ID instead.
*/
static FmEngine* FmFindFunction (int fid)
{
FmEngine* engine = NULL;
if (fid != 0 && !FmFind(fid,engine,true))
{
ListUI <<" *** Error: No function with";
if (fid > 0)
ListUI <<" user ID "<< fid;
else
ListUI <<" base ID "<< -fid;
ListUI <<"\n";
}
return engine;
}
DLLexport(bool) FmReduce (char* rdbDir, int baseId)
{
#ifdef FM_DEBUG
std::cout <<"\nFmReduce("<< baseId <<")"<< std::endl;
#endif
FmAnalysis* analy = FmDB::getActiveAnalysis(false);
FmMechanism* mech = FmDB::getMechanismObject(false);
if (!analy || !mech)
{
ListUI <<"\n\n===> Empty model. Nothing to reduce here.\n";
return false;
}
FmPart* part;
if (!FmFind(baseId,part))
{
ListUI <<"\n\n===> No FE part with baseId "<< baseId <<".\n";
return false;
}
else if (!part->isFEPart())
{
ListUI <<"\n\n===> "<< part->getIdString(true) <<" is not an FE part.\n";
return false;
}
else if (part->setValidBaseFTLFile().empty())
{
ListUI <<"\n\n===> No FE data file for "<< part->getIdString(true) <<"\n";
return false;
}
if (Fedem::checkReducerFiles(part,analy->needMassMatrix()) > 0)
{
ListUI <<" ==> "<< part->getIdString(true) <<" is already reduced.\n";
rdbDir[0] = '\0';
return true;
}
std::string msg = Fedem::createReducerInput(analy,mech,part,"fedem_reducer");
bool success = msg.find("===> ") > 0;
if (success)
{
ListUI <<" ==> Successfully created reducer input files in "
<<"\n "<< msg;
strcpy(rdbDir,msg.c_str());
}
else
ListUI << msg;
ListUI <<"\n";
return success;
}
DLLexport(bool) FmSync (int baseId)
{
#ifdef FM_DEBUG
std::cout <<"FmSync("<< baseId <<")"<< std::endl;
#endif
FmPart* part;
if (!FmFind(baseId,part))
{
ListUI <<"\n\n===> No FE part with baseId "<< baseId <<".\n";
return false;
}
else if (part->isFEPart())
return part->syncRSD();
return true; // silently ignore for generic (or suppressed) parts
}
DLLexport(void) FmSolveSetup (double tStart, double tInc, double tStop,
double tQuasi, double eInc, int nModes,
const char* add_opts = NULL)
{
#ifdef FM_DEBUG
std::cout <<"FmSolveSetup("<< tStart <<","<< tInc <<","<< tStop
<<","<< tQuasi <<","<< eInc <<","<< nModes <<")"<< std::endl;
#endif
FmAnalysis* analy = FmDB::getActiveAnalysis();
analy->setStartTime(tStart);
analy->setEndTime(tStop);
analy->setTimeIncrement(tInc);
analy->solveInitEquil.setValue(tQuasi >= tStart);
analy->quasistaticEnable.setValue(tQuasi > tStart);
if (tQuasi > tStart)
{
analy->quasistaticMode.setValue(tQuasi < tStop);
if (tQuasi < tStop)
analy->setQuasistaticUpToTime(tQuasi);
else if (tQuasi > tStop)
analy->setEndTime(tQuasi);
}
analy->setSolveEigenvalueFlag(nModes > 0);
if (nModes > 0)
{
analy->setRequestedEigenmodes(nModes);
analy->setEigenvalueSolutionTimeInterval(eInc);
}
if (add_opts)
{
std::string& my_opts = analy->solverAddOpts.getValue();
if (my_opts.empty())
analy->solverAddOpts.setValue(add_opts);
else if (my_opts.find(add_opts) == std::string::npos) // avoid adding same options multiple times
my_opts.append(std::string(" ") + std::string(add_opts));
}
}
DLLexport(void) FmSolverTol (double eN, double dN, double vN, double rN)
{
#ifdef FM_DEBUG
std::cout <<"FmSolverTol("<< eN <<","<< dN <<","<< vN <<","<< rN
<<")"<< std::endl;
#endif
FmAnalysis* analy = FmDB::getActiveAnalysis();
analy->setTolEnergySum(eN,FmSolverConvergence::CONV_ALL_OF);
analy->setTolDisplacementNorm(dN,FmSolverConvergence::CONV_ALL_OF);
analy->setTolVelocityNorm(vN,FmSolverConvergence::CONV_ALL_OF);
analy->setTolResidualNorm(rN,FmSolverConvergence::CONV_ALL_OF);
}
DLLexport(bool) FmSolve (char* rdbDir, bool keepRes,
const char* udePlugin, const char* udfPlugin)
{
#ifdef FM_DEBUG
std::cout <<"\nFmSolve("<< (keepRes ? "True)" : "False)") << std::endl;
#endif
FmAnalysis* analy = FmDB::getActiveAnalysis(false);
FmMechanism* mech = FmDB::getMechanismObject(false);
if (!analy || !mech)
{
ListUI <<"\n\n===> Empty model. Nothing to solve here.\n";
return false;
}
FmResultStatusData* currentRSD = mech->getResultStatusData();
if (!currentRSD->isEmpty(true)) currentRSD->incrementTaskVer();
if (!udePlugin && !mech->activeElementPlugin.getValue().empty())
{
const std::string& plugin = mech->activeElementPlugin.getValue();
if (FiUserElmPlugin::instance()->validate(plugin))
udePlugin = plugin.c_str();
else
ListUI <<" ** Ignoring invalid user-defined element plugin: "<< plugin <<"\n";
}
if (!udfPlugin && !mech->activeFunctionPlugin.getValue().empty())
{
const std::string& plugin = mech->activeFunctionPlugin.getValue();
if (FFaUserFuncPlugin::instance()->validate(plugin))
udfPlugin = plugin.c_str();
else
ListUI <<" ** Ignoring invalid user-defined function plugin: "<< plugin <<"\n";
}
Strings plugins, rdbPath;
plugins.reserve(2);
if (udePlugin)
{
ListUI <<" => User-defined element plugin: "<< udePlugin <<"\n";
plugins.push_back(udePlugin);
}
if (udfPlugin)
{
ListUI <<" => User-defined function plugin: "<< udfPlugin <<"\n";
plugins.push_back(udfPlugin);
}
std::string msg = Fedem::createSolverInput(analy,mech,NULL,"fedem_solver",
plugins,rdbPath,false,keepRes);
bool success = msg.find("fedem_solver") == 0;
if (success)
{
ListUI <<" ==> Successfully created solver input files in "
<< mech->getAbsModelRDBPath();
for (const std::string& dir : rdbPath) ListUI <<"\n "<< dir;
strcpy(rdbDir,rdbPath.front().c_str());
}
else
ListUI << msg;
ListUI <<"\n";
return success;
}
DLLexport(bool) FmSave (const char* fmmFile = NULL)
{
#ifdef FM_DEBUG
std::cout <<"\nFmSave(";
if (fmmFile) std::cout << fmmFile;
std::cout <<")"<< std::endl;
#endif
FmMechanism* mech = FmDB::getMechanismObject(false);
if (!mech)
{
ListUI <<"\n\n===> Empty model. Nothing to save here.\n";
return false;
}
std::string modelFile = mech->getModelFileName();
bool savingAs = false;
if (fmmFile)
savingAs = modelFile != fmmFile;
else if (modelFile.empty())
{
ListUI <<"\n\n===> File name not specified. Model not saved.\n";
return false;
}
if (savingAs)
{
// Update the mechanism to reflect the pathname changes
std::string oldModelP = mech->getAbsModelFilePath();
mech->syncPath(fmmFile);
// Translate all relative pathnames according to the new model file location
const std::string& newModelP = mech->getAbsModelFilePath();
FmDB::translateRelativePaths(oldModelP,newModelP);
// Open new log-file
openAssociatedLogFile(fmmFile);
modelFile = mech->getModelFileName();
}
bool isModelSaved = false;
ListUI <<"===> Saving "<< modelFile <<"\n";
// Save the model in <modelFile>.tmp so we don't loose the old file
// in case of write failure due to disk full, etc.
std::string tempFile = modelFile + ".tmp";
std::ofstream s(tempFile.c_str(),std::ios::out);
if (s)
{
std::vector<FmPart*> allParts;
FmDB::getAllParts(allParts);
for (FmPart* part : allParts)
part->saveFEData();
std::set<std::string> obsoleteFiles;
FmResultStatusData diskRSD;
FmResultStatusData* currentRSD = mech->getResultStatusData();
#ifdef FM_DEBUG
std::cout <<"\n * Syncronizing the RDB: "<< currentRSD->getPath()
<<" "<< currentRSD->getTaskName()
<<" "<< currentRSD->getTaskVer() << std::endl;
#endif
diskRSD.setPath(currentRSD->getPath());
diskRSD.syncFromRDB(currentRSD->getCurrentTaskDirName(true,true),
currentRSD->getTaskName(), currentRSD->getTaskVer(),
&obsoleteFiles);
#ifdef FM_DEBUG
std::set<std::string> rsdfiles, rdbfiles;
currentRSD->getAllFileNames(rsdfiles);
diskRSD.getAllFileNames(rdbfiles);
std::cout <<"\n * Files referred in model file:";
for (const std::string& file : rsdfiles) std::cout <<"\n\t"<< file;
std::cout <<"\n * Files on disk:";
for (const std::string& file : rdbfiles) std::cout <<"\n\t"<< file;
std::cout <<"\n * Obsolete files:";
for (const std::string& file : obsoleteFiles) std::cout <<"\n\t"<< file;
std::cout <<"\n"<< std::endl;
#endif
currentRSD->copy(&diskRSD);
for (const std::string& file : obsoleteFiles)
if (!FmFileSys::deleteFile(file))
ListUI <<" -> Problems deleting file "<< file <<"\n";
FmSubAssembly::mainFilePath = mech->getAbsModelFilePath();
FmDB::updateModelVersionOnSave(false);
isModelSaved = FmDB::reportAll(s);
s.close();
}
if (isModelSaved)
{
FmFileSys::renameFile(modelFile, modelFile+".bak");
FmFileSys::renameFile(tempFile, modelFile);
ListUI <<" -> Model saved in ";
}
else
{
FmFileSys::deleteFile(tempFile);
ListUI <<" -> Error: Could NOT save ";
}
ListUI << modelFile <<"\n";
return isModelSaved;
}
////////////////////////////////////////////////////////////////////////////////
// Modelling functions
////////////////////////////////////////////////////////////////////////////////
DLLexport(int) FmCreateTriad (const char* description,
double x, double y, double z,
double rx = 0.0, double ry = 0.0, double rz = 0.0,
int owner = 0)
{
FmTriad* triad = Fedem::createTriad(FaVec3(x,y,z),FmDB::findObject(owner));
if (!triad) return 0;
if (owner == 0 && fabs(rx)+fabs(ry)+fabs(rz) > 1.0e-6)
{
FaMat33 orientation;
triad->setOrientation(orientation.eulerRotateZYX(FaVec3(rx,ry,rz)));
}
if (description)
triad->setUserDescription(description);
return triad->getBaseID();
}
DLLexport(int) FmTriadOnNode (const char* description, int node, int part)
{
FmPart* ownerPart;
if (!FmFind(part,ownerPart) || !ownerPart->isFEPart(true))
{
ListUI <<" *** Error: No FE part with base ID "<< part <<".\n";
return -node;
}
// Check if there already is a triad for this node
FmTriad* triad = ownerPart->getTriadAtNode(node);
if (!triad)
{
FFlNode* feNode = ownerPart->getNode(node);
if (!feNode)
{
ListUI <<" *** Error: No node "<< node <<" in FE "
<< ownerPart->getIdString(true) <<"\n";
return -node;
}
// Create triad at the nodal point
FaVec3 nodePos = ownerPart->getGlobalCS() * feNode->getPos();
if (!(triad = Fedem::createTriad(nodePos,ownerPart)))
return 0;
}
if (description)
triad->setUserDescription(description);
return triad->getBaseID();
}
DLLexport(int) FmCreateBeam (const char* description,
int t1, int t2, int cs = 0)
{
FmTriad* triad1;
if (!FmFind(t1,triad1))
{
ListUI <<" *** Error: No triad with base ID "<< t1 <<".\n";
return -t1;
}
FmTriad* triad2;
if (!FmFind(t2,triad2))
{
ListUI <<" *** Error: No triad with base ID "<< t2 <<".\n";
return -t2;
}
FmBeam* beam = Fedem::createBeam(triad1,triad2);
if (!beam) return 0;
if (description)
beam->setUserDescription(description);
FmBeamProperty* bProp;
if (FmFind(cs,bProp))
beam->setProperty(bProp);
return beam->getBaseID();
}
DLLexport(int) FmCreateBeamProperty (const char* description, int imat,
int nprop, const double* prop)
{
FmBeamProperty* pBeam = new FmBeamProperty();
if (!pBeam) return 0;
if (imat > 0)
{
// Pipe cross section, with material reference
pBeam->crossSectionType.setValue(FmBeamProperty::PIPE);
pBeam->material.setRef(dynamic_cast<FmMaterialProperty*>(FmDB::findObject(imat)));
if (nprop > 0) pBeam->Do.setValue(prop[0]);
if (nprop > 1) pBeam->Di.setValue(prop[1]);
if (nprop > 3) pBeam->ShrRed.setValue(std::make_pair(prop[2],prop[3]));
if (nprop > 5) pBeam->ShrCentre.setValue(std::make_pair(prop[4],prop[5]));
}
else
{
// Generic cross section
pBeam->crossSectionType.setValue(FmBeamProperty::GENERIC);
if (nprop > 0) pBeam->EA.setValue(prop[0]);
if (nprop > 2) pBeam->EI.setValue(std::make_pair(prop[1],prop[2]));
if (nprop > 3) pBeam->GIt.setValue(prop[3]);
if (nprop > 4) pBeam->Mass.setValue(prop[4]);
if (nprop > 5) pBeam->RoIp.setValue(prop[5]);
if (nprop > 7) pBeam->GAs.setValue(std::make_pair(prop[6],prop[7]));
if (nprop > 9) pBeam->ShrCentre.setValue(std::make_pair(prop[8],prop[9]));
}
ListUI <<"Creating Beam cross section property.\n";
pBeam->connect();
pBeam->updateDependentValues();
if (description)
pBeam->setUserDescription(description);
return pBeam->getBaseID();
}
DLLexport(int) FmCreateMaterialProperty (const char* description,
int nprop, const double* prop)
{
FmMaterialProperty* pMat = new FmMaterialProperty();
if (!pMat) return 0;
if (nprop < 3) return -1;
if (!pMat->updateProperties(prop[0],prop[1],pMat->G.getValue(),prop[2]))
{
pMat->erase();
return -2;
}
ListUI <<"Creating material property.\n";
pMat->connect();
if (description)
pMat->setUserDescription(description);
return pMat->getBaseID();
}
/*!
\brief Static helper that creates a polyline function object.
*/
static FmfLinVar* createPolyline (int n, const double* x, const double* y,
int extrapol_type)
{
if (n < 1) return NULL;
FmfLinVar* f = new FmfLinVar();
for (int i = 0; i < n; i++)
f->addXYset(x[i],y[i]);
f->setExtrapolationType(extrapol_type);
f->connect();
return f;
}
DLLexport(int) FmCreateSpring (const char* description, int t1, int t2,
double constLengthOrDefl, bool useConstDefl,
double init_Stiff_Coeff, int& spring_charac,
int sz, const double* x, const double* y,
int extrapol_type, int lcid = 0)
{
FmTriad* triad1;
if (!FmFind(t1,triad1))
{
ListUI <<" *** Error: No triad with base ID "<< t1 <<".\n";
return -t1;
}
FmTriad* triad2;
if (!FmFind(t2,triad2))
{
ListUI <<" *** Error: No triad with base ID "<< t2 <<".\n";
return -t2;
}
FmAxialSpring* spring = Fedem::createAxialSpring(triad1,triad2);
if (!spring) return 0;
if (description)
spring->setUserDescription(description);
spring->setInitLengthOrDefl(constLengthOrDefl,useConstDefl);
spring->setInitStiff(init_Stiff_Coeff);
FmMathFuncBase* plx = NULL;
if (spring_charac > 0)
{
// The Base Id of the spring stiffness function to use is given.
// Check that its usage flag is valid
if (FmFind(spring_charac,plx))
if (plx->getFunctionUse() < FmMathFuncBase::SPR_TRA_STIFF ||
plx->getFunctionUse() > FmMathFuncBase::SPR_TRA_FORCE)
plx = NULL;
}
else
{
// Create a new spring stiffness function
// spring stiffness as polyline function
if ((plx = createPolyline(sz,x,y,extrapol_type)))
{
// -spring_charac is the spring function usage index
plx->setFunctionUsage(FmMathFuncBase::SPR_TRA_STIFF-spring_charac);
if (description)
plx->setUserDescription(description);
// Return the base Id of created function for subsequent springs
spring_charac = plx->getBaseID();
}
}
spring->setSpringCharOrStiffFunction(plx);
// Check if a stress-free length function is specified.
// Notice that a positive lcid value is assumed to be the FmEngine user ID
// whereas a negative value is interpreted as the base ID.
FmEngine* e;
if (FmFind(lcid,e,true))
spring->setEngine(e);
return spring->getBaseID();
}
DLLexport(int) FmCreateDamper (const char* description, int t1, int t2,
bool def_vel_damper,
double init_Damp_Coeff, int& damp_charac,
int sz, const double* x, const double* y,
int extrapol_type)
{
FmTriad* triad1;
if (!FmFind(t1,triad1))
{
ListUI <<" *** Error: No triad with base ID "<< t1 <<".\n";
return -t1;
}
FmTriad* triad2;
if (!FmFind(t2,triad2))
{
ListUI <<" *** Error: No triad with base ID "<< t2 <<".\n";
return -t2;
}
FmAxialDamper* damper = Fedem::createAxialDamper(triad1,triad2);
if (!damper) return 0;
if (description)
damper->setUserDescription(description);
damper->isDefDamper.setValue(def_vel_damper);
damper->setInitDamp(init_Damp_Coeff);
FmMathFuncBase* plx = NULL;
if (damp_charac > 0)
{
// The Base Id of the damper function to use is given.
// Check that its usage flag is valid
if (FmFind(damp_charac,plx))
if (plx->getFunctionUse() < FmMathFuncBase::DA_TRA_COEFF ||
plx->getFunctionUse() > FmMathFuncBase::DA_TRA_FORCE)
plx = NULL;
}
else
{
// Create a new damper function
// damping coefficient as polyline function
if ((plx = createPolyline(sz,x,y,extrapol_type)))
{
plx->setFunctionUsage(FmMathFuncBase::DA_TRA_COEFF+damp_charac);
if (description)
plx->setUserDescription(description);
// Return the base Id of created function for subsequent dampers
damp_charac = plx->getBaseID();
}
}
damper->setFunction(plx);
return damper->getBaseID();
}
DLLexport(int) FmCreateJoint (const char* description, int jType,
int t1, int* t2 = NULL, int nr_t2 = 0)
{
FmTriad* follower;