1138 lines
51 KiB
Python
1138 lines
51 KiB
Python
# ***************************************************************************
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# * *
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# * Copyright (c) 2015 Przemo Firszt <przemo@firszt.eu> *
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# * Copyright (c) 2016 Bernd Hahnebach <bernd@bimstatik.org> *
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# * *
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# * This program is free software; you can redistribute it and/or modify *
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# * it under the terms of the GNU Lesser General Public License (LGPL) *
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# * as published by the Free Software Foundation; either version 2 of *
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# * the License, or (at your option) any later version. *
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# * for detail see the LICENCE text file. *
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# * *
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# * This program is distributed in the hope that it will be useful, *
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# * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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# * GNU Library General Public License for more details. *
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# * *
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# * You should have received a copy of the GNU Library General Public *
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# * License along with this program; if not, write to the Free Software *
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# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
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# * USA *
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# * *
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# ***************************************************************************
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__title__ = "FemToolsCcx"
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__author__ = "Przemo Firszt, Bernd Hahnebach"
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__url__ = "http://www.freecadweb.org"
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## \addtogroup FEM
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# @{
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import os
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import sys
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import subprocess
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import FreeCAD
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from femtools import femutils
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from femtools import membertools
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from PySide import QtCore # there might be a special reason this is not guarded ?!?
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if FreeCAD.GuiUp:
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from PySide import QtGui
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import FemGui
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class FemToolsCcx(QtCore.QRunnable, QtCore.QObject):
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"""
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Attributes
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----------
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analysis : Fem::FemAnalysis
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FEM group analysis object
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has to be present, will be set in __init__
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solver : Fem::FemSolverObjectPython
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FEM solver object
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has to be present, will be set in __init__
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base_name : str
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name of .inp/.frd file (without extension)
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It is used to construct .inp file path that is passed to CalculiX ccx
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ccx_binary : str
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working_dir : str
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results_present : bool
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indicating if there are calculation results ready for us
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members : class femtools/membertools/AnalysisMember
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contains references to all analysis member except solvers and mesh
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Updated with update_objects
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"""
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known_analysis_types = ["static", "frequency", "thermomech", "check"]
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finished = QtCore.Signal(int)
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def __init__(self, analysis=None, solver=None, test_mode=False):
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"""The constructor
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Parameters
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----------
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analysis : Fem::FemAnalysis, optional
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analysis group as a container for all objects needed for the analysis
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solver : Fem::FemSolverObjectPython, optional
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solver object to be used for this solve
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test_mode : bool, optional
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mainly used in unit tests
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"""
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QtCore.QRunnable.__init__(self)
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QtCore.QObject.__init__(self)
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self.analysis = None
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self.solver = None
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if analysis:
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self.analysis = analysis
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if solver:
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# analysis and solver given
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self.solver = solver
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else:
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# analysis given, search for the solver
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self.find_solver()
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if not self.solver:
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raise Exception("FEM: No solver found!")
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else:
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if solver:
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# solver given, searche for the analysis
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self.solver = solver
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self.find_solver_analysis()
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if not self.analysis:
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raise Exception(
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"FEM: The solver was given as parameter, "
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"but no analysis for this solver was found!"
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)
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else:
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# neither analysis nor solver given, search both
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self.find_analysis()
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if not self.analysis:
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raise Exception(
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"FEM: No solver was given and either no active analysis "
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"or no analysis at all or more than one analysis found!"
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)
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self.find_solver()
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if not self.solver:
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raise Exception("FEM: No solver found!")
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# print(self.solver)
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# print(self.analysis)
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if self.analysis and self.solver:
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self.working_dir = ""
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self.ccx_binary = ""
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self.base_name = ""
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self.results_present = False
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if test_mode:
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self.test_mode = True
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self.ccx_binary_present = True
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else:
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self.test_mode = False
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self.ccx_binary_present = False
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self.result_object = None
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else:
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raise Exception(
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"FEM: Something went wrong, "
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"the exception should have been raised earlier!"
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)
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def purge_results(self):
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"""Remove all result objects and result meshes from an analysis group
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"""
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from femresult.resulttools import purge_results as pr
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pr(self.analysis)
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def reset_mesh_purge_results_checked(self):
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"""Reset mesh color, deformation and removes all result objects
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if preferences to keep them is not set.
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"""
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self.fem_prefs = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Fem/General")
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keep_results_on_rerun = self.fem_prefs.GetBool("KeepResultsOnReRun", False)
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if not keep_results_on_rerun:
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self.purge_results()
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def reset_all(self):
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"""Reset mesh color, deformation and removes all result objects
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"""
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self.purge_results()
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def _get_several_member(self, obj_type):
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return membertools.get_several_member(self.analysis, obj_type)
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def find_analysis(self):
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if FreeCAD.GuiUp:
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self.analysis = FemGui.getActiveAnalysis()
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if self.analysis:
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return
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found_analysis = False
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for m in FreeCAD.ActiveDocument.Objects:
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if femutils.is_of_type(m, "Fem::FemAnalysis"):
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if not found_analysis:
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self.analysis = m
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found_analysis = True
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else:
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self.analysis = None # more than one analysis
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if self.analysis:
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if FreeCAD.GuiUp:
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FemGui.setActiveAnalysis(self.analysis)
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def find_solver_analysis(self):
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""" get the analysis group the solver belongs to
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"""
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if self.solver.getParentGroup():
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obj = self.solver.getParentGroup()
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if femutils.is_of_type(obj, "Fem::FemAnalysis"):
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self.analysis = obj
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if FreeCAD.GuiUp:
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FemGui.setActiveAnalysis(self.analysis)
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def find_solver(self):
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found_solver_for_use = False
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for m in self.analysis.Group:
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if femutils.is_of_type(m, "Fem::FemSolverCalculixCcxTools"):
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# we are going to explicitly check for the ccx tools solver type only,
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# thus it is possible to have lots of framework solvers inside the analysis anyway
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# for some methods no solver is needed (purge_results) --> solver could be none
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# analysis has one solver and no solver was set --> use the one solver
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# analysis has more than one solver and no solver was set --> use solver none
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# analysis has no solver --> use solver none
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if not found_solver_for_use:
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# no solver was found before
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self.solver = m
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found_solver_for_use = True
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else:
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# another solver was found --> We have more than one solver
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# we do not know which one to use, so we use none !
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self.solver = None
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FreeCAD.Console.PrintLog(
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"FEM: More than one solver in the analysis "
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"and no solver given to analyze. "
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"No solver is set!\n"
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)
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def update_objects(self):
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## @var mesh
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# mesh of the analysis. Used to generate .inp file and to show results
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self.mesh = None
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mesh, message = membertools.get_mesh_to_solve(self.analysis)
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if mesh is not None:
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self.mesh = mesh
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else:
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if FreeCAD.GuiUp:
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QtGui.QMessageBox.critical(None, "Missing prerequisite", message)
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raise Exception(message + "\n")
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## @var members
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# members of the analysis. All except solvers and the mesh
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self.member = membertools.AnalysisMember(self.analysis)
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def check_prerequisites(self):
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FreeCAD.Console.PrintMessage("Check prerequisites.\n")
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from FreeCAD import Units
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message = ""
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# analysis
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if not self.analysis:
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message += "No active Analysis\n"
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if not self.working_dir:
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message += "Working directory not set\n"
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if not (os.path.isdir(self.working_dir)):
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message += (
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"Working directory \'{}\' doesn't exist."
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.format(self.working_dir)
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)
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# solver
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if not self.solver:
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message += "No solver object defined in the analysis\n"
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else:
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if self.solver.AnalysisType not in self.known_analysis_types:
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message += (
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"Unknown analysis type: {}\n"
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.format(self.solver.AnalysisType)
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)
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if self.solver.AnalysisType == "frequency":
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if not hasattr(self.solver, "EigenmodeHighLimit"):
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message += "Frequency analysis: Solver has no EigenmodeHighLimit.\n"
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elif not hasattr(self.solver, "EigenmodeLowLimit"):
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message += "Frequency analysis: Solver has no EigenmodeLowLimit.\n"
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elif not hasattr(self.solver, "EigenmodesCount"):
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message += "Frequency analysis: Solver has no EigenmodesCount.\n"
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if hasattr(self.solver, "MaterialNonlinearity") \
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and self.solver.MaterialNonlinearity == "nonlinear":
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if not self.member.mats_nonlinear:
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message += (
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"Solver is set to nonlinear materials, "
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"but there is no nonlinear material in the analysis.\n"
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)
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if self.solver.Proxy.Type == "Fem::FemSolverCalculixCcxTools" \
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and self.solver.GeometricalNonlinearity != "nonlinear":
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# nonlinear geometry --> should be set
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# https://forum.freecadweb.org/viewtopic.php?f=18&t=23101&p=180489#p180489
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message += (
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"Solver CalculiX triggers nonlinear geometry for nonlinear material, "
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"thus it should to be set too.\n"
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)
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# mesh
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if not self.mesh:
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message += "No mesh object defined in the analysis\n"
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if self.mesh:
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if self.mesh.FemMesh.VolumeCount == 0 \
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and self.mesh.FemMesh.FaceCount > 0 \
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and not self.member.geos_shellthickness:
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message += (
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"FEM mesh has no volume elements, "
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"either define a shell thicknesses or "
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"provide a FEM mesh with volume elements.\n"
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)
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if self.mesh.FemMesh.VolumeCount == 0 \
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and self.mesh.FemMesh.FaceCount == 0 \
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and self.mesh.FemMesh.EdgeCount > 0 \
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and not self.member.geos_beamsection \
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and not self.member.geos_fluidsection:
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message += (
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"FEM mesh has no volume and no shell elements, "
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"either define a beam/fluid section or provide "
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"a FEM mesh with volume elements.\n"
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)
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if self.mesh.FemMesh.VolumeCount == 0 \
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and self.mesh.FemMesh.FaceCount == 0 \
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and self.mesh.FemMesh.EdgeCount == 0:
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message += (
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"FEM mesh has neither volume nor shell or edge elements. "
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"Provide a FEM mesh with elements!\n"
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)
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# material linear and nonlinear
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if not self.member.mats_linear:
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message += "No material object defined in the analysis\n"
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has_no_references = False
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for m in self.member.mats_linear:
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if len(m["Object"].References) == 0:
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if has_no_references is True:
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message += (
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"More than one material has an empty references list "
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"(Only one empty references list is allowed!).\n"
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)
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has_no_references = True
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mat_ref_shty = ""
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for m in self.member.mats_linear:
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ref_shty = femutils.get_refshape_type(m["Object"])
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if not mat_ref_shty:
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mat_ref_shty = ref_shty
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if mat_ref_shty and ref_shty and ref_shty != mat_ref_shty:
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# mat_ref_shty could be empty in one material
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# only the not empty ones should have the same shape type
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message += (
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"Some material objects do not have the same reference shape type "
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"(all material objects must have the same reference shape type, "
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"at the moment).\n"
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)
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for m in self.member.mats_linear:
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mat_map = m["Object"].Material
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mat_obj = m["Object"]
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if mat_obj.Category == "Solid":
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if "YoungsModulus" in mat_map:
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# print(Units.Quantity(mat_map["YoungsModulus"]).Value)
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if not Units.Quantity(mat_map["YoungsModulus"]).Value:
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message += "Value of YoungsModulus is set to 0.0.\n"
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else:
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message += "No YoungsModulus defined for at least one material.\n"
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if "PoissonRatio" not in mat_map:
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# PoissonRatio is allowed to be 0.0 (in ccx), but it should be set anyway.
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message += "No PoissonRatio defined for at least one material.\n"
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if self.solver.AnalysisType == "frequency" or self.member.cons_selfweight:
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if "Density" not in mat_map:
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message += "No Density defined for at least one material.\n"
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if self.solver.AnalysisType == "thermomech":
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if "ThermalConductivity" in mat_map:
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if not Units.Quantity(mat_map["ThermalConductivity"]).Value:
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message += "Value of ThermalConductivity is set to 0.0.\n"
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else:
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message += (
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"Thermomechanical analysis: No ThermalConductivity defined "
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"for at least one material.\n"
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)
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if "ThermalExpansionCoefficient" not in mat_map and mat_obj.Category == "Solid":
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message += (
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"Thermomechanical analysis: No ThermalExpansionCoefficient defined "
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"for at least one material.\n" # allowed to be 0.0 (in ccx)
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)
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if "SpecificHeat" not in mat_map:
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message += (
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"Thermomechanical analysis: No SpecificHeat "
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"defined for at least one material.\n" # allowed to be 0.0 (in ccx)
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)
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if femutils.is_of_type(mat_obj, "Fem::MaterialReinforced"):
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# additional tests for reinforced materials,
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# they are needed for result calculation not for ccx analysis
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mat_map_m = mat_obj.Material
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if "AngleOfFriction" in mat_map_m:
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# print(Units.Quantity(mat_map_m["AngleOfFriction"]).Value)
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if not Units.Quantity(mat_map_m["AngleOfFriction"]).Value:
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message += (
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"Value of AngleOfFriction is set to 0.0 "
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"for the matrix of a reinforced material.\n"
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)
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else:
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message += (
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"No AngleOfFriction defined for the matrix "
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"of at least one reinforced material.\n"
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)
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if "CompressiveStrength" in mat_map_m:
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# print(Units.Quantity(mat_map_m["CompressiveStrength"]).Value)
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if not Units.Quantity(mat_map_m["CompressiveStrength"]).Value:
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message += (
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"Value of CompressiveStrength is set to 0.0 "
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"for the matrix of a reinforced material.\n"
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)
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else:
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message += (
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"No CompressiveStrength defined for the matrinx "
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"of at least one reinforced material.\n"
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)
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mat_map_r = mat_obj.Reinforcement
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if "YieldStrength" in mat_map_r:
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# print(Units.Quantity(mat_map_r["YieldStrength"]).Value)
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if not Units.Quantity(mat_map_r["YieldStrength"]).Value:
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message += (
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"Value of YieldStrength is set to 0.0 "
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"for the reinforcement of a reinforced material.\n"
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)
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else:
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message += (
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"No YieldStrength defined for the reinforcement "
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"of at least one reinforced material.\n"
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)
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if len(self.member.mats_linear) == 1:
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mobj = self.member.mats_linear[0]["Object"]
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if hasattr(mobj, "References") and mobj.References:
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FreeCAD.Console.PrintError(
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"Only one material object, but this one has a reference shape. "
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"The reference shape will be ignored.\n"
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)
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for m in self.member.mats_linear:
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has_nonlinear_material = False
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for nlm in self.member.mats_nonlinear:
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if nlm["Object"].LinearBaseMaterial == m["Object"]:
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if has_nonlinear_material is False:
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has_nonlinear_material = True
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else:
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message += (
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"At least two nonlinear materials use the same linear base material. "
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"Only one nonlinear material for each linear material allowed.\n"
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)
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# which analysis needs which constraints
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# no check in the regard of loads existence (constraint force, pressure, self weight)
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# is done, because an analysis without loads at all is an valid analysis too
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if self.solver.AnalysisType == "static":
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if not (self.member.cons_fixed or self.member.cons_displacement):
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message += (
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"Static analysis: Neither constraint fixed nor "
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"constraint displacement defined.\n"
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)
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if self.solver.AnalysisType == "thermomech":
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if not self.member.cons_initialtemperature:
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if not self.member.geos_fluidsection:
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message += "Thermomechanical analysis: No initial temperature defined.\n"
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if len(self.member.cons_initialtemperature) > 1:
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message += "Thermomechanical analysis: Only one initial temperature is allowed.\n"
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# constraints
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# fixed
|
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if self.member.cons_fixed:
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for c in self.member.cons_fixed:
|
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if len(c["Object"].References) == 0:
|
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message += "{} has empty references.".format(c["Object"].Name)
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# displacement
|
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if self.member.cons_displacement:
|
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for di in self.member.cons_displacement:
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if len(di["Object"].References) == 0:
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message += "{} has empty references.".format(c["Object"].Name)
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# plane rotation
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if self.member.cons_planerotation:
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for c in self.member.cons_planerotation:
|
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if len(c["Object"].References) == 0:
|
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message += "{} has empty references.".format(c["Object"].Name)
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# contact
|
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if self.member.cons_contact:
|
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for c in self.member.cons_contact:
|
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if len(c["Object"].References) == 0:
|
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message += "{} has empty references.".format(c["Object"].Name)
|
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# tie
|
|
if self.member.cons_tie:
|
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for c in self.member.cons_tie:
|
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items = 0
|
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for reference in c["Object"].References:
|
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items += len(reference[1])
|
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if items != 2:
|
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message += (
|
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"{} doesn't references exactly two needed faces.\n"
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.format(c["Object"].Name)
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)
|
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# transform
|
|
if self.member.cons_transform:
|
|
for c in self.member.cons_transform:
|
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if len(c["Object"].References) == 0:
|
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message += "{} has empty references.".format(c["Object"].Name)
|
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# pressure
|
|
if self.member.cons_pressure:
|
|
for c in self.member.cons_pressure:
|
|
if len(c["Object"].References) == 0:
|
|
message += "{} has empty references.".format(c["Object"].Name)
|
|
# force
|
|
if self.member.cons_force:
|
|
for c in self.member.cons_force:
|
|
if len(c["Object"].References) == 0:
|
|
message += "{} has empty references.".format(c["Object"].Name)
|
|
# temperature
|
|
if self.member.cons_temperature:
|
|
for c in self.member.cons_temperature:
|
|
if len(c["Object"].References) == 0:
|
|
message += "{} has empty references.".format(c["Object"].Name)
|
|
# heat flux
|
|
if self.member.cons_heatflux:
|
|
for c in self.member.cons_heatflux:
|
|
if len(c["Object"].References) == 0:
|
|
message += "{} has empty references.".format(c["Object"].Name)
|
|
# beam section
|
|
if self.member.geos_beamsection:
|
|
if self.member.geos_shellthickness:
|
|
# this needs to be checked only once either here or in shell_thicknesses
|
|
message += (
|
|
"Beam sections and shell thicknesses in one analysis "
|
|
"is not supported at the moment.\n"
|
|
)
|
|
if self.member.geos_fluidsection:
|
|
# this needs to be checked only once either here or in shell_thicknesses
|
|
message += (
|
|
"Beam sections and fluid sections in one analysis "
|
|
"is not supported at the moment.\n"
|
|
)
|
|
has_no_references = False
|
|
for b in self.member.geos_beamsection:
|
|
if len(b["Object"].References) == 0:
|
|
if has_no_references is True:
|
|
message += (
|
|
"More than one beam section has an empty references "
|
|
"list (Only one empty references list is allowed!).\n"
|
|
)
|
|
has_no_references = True
|
|
if self.mesh:
|
|
if self.mesh.FemMesh.FaceCount > 0 or self.mesh.FemMesh.VolumeCount > 0:
|
|
message += (
|
|
"Beam sections defined but FEM mesh has volume or shell elements.\n"
|
|
)
|
|
if self.mesh.FemMesh.EdgeCount == 0:
|
|
message += (
|
|
"Beam sections defined but FEM mesh has no edge elements.\n"
|
|
)
|
|
if len(self.member.geos_beamrotation) > 1:
|
|
message += (
|
|
"Multiple beam rotations in one analysis are not supported at the moment.\n"
|
|
)
|
|
# beam rotations
|
|
if self.member.geos_beamrotation and not self.member.geos_beamsection:
|
|
message += "Beam rotations in the analysis but no beam sections defined.\n"
|
|
# shell thickness
|
|
if self.member.geos_shellthickness:
|
|
has_no_references = False
|
|
for s in self.member.geos_shellthickness:
|
|
if len(s["Object"].References) == 0:
|
|
if has_no_references is True:
|
|
message += (
|
|
"More than one shell thickness has an empty references "
|
|
"list (Only one empty references list is allowed!).\n"
|
|
)
|
|
has_no_references = True
|
|
if self.mesh:
|
|
if self.mesh.FemMesh.VolumeCount > 0:
|
|
message += "Shell thicknesses defined but FEM mesh has volume elements.\n"
|
|
if self.mesh.FemMesh.FaceCount == 0:
|
|
message += "Shell thicknesses defined but FEM mesh has no shell elements.\n"
|
|
# fluid section
|
|
if self.member.geos_fluidsection:
|
|
if not self.member.cons_selfweight:
|
|
message += (
|
|
"A fluid network analysis requires self weight constraint to be applied\n"
|
|
)
|
|
if self.solver.AnalysisType != "thermomech":
|
|
message += "A fluid network analysis can only be done in a thermomech analysis\n"
|
|
has_no_references = False
|
|
for f in self.member.geos_fluidsection:
|
|
if len(f["Object"].References) == 0:
|
|
if has_no_references is True:
|
|
message += (
|
|
"More than one fluid section has an empty references list "
|
|
"(Only one empty references list is allowed!).\n"
|
|
)
|
|
has_no_references = True
|
|
if self.mesh:
|
|
if self.mesh.FemMesh.FaceCount > 0 or self.mesh.FemMesh.VolumeCount > 0:
|
|
message += (
|
|
"Fluid sections defined but FEM mesh has volume or shell elements.\n"
|
|
)
|
|
if self.mesh.FemMesh.EdgeCount == 0:
|
|
message += "Fluid sections defined but FEM mesh has no edge elements.\n"
|
|
return message
|
|
|
|
def set_base_name(self, base_name=None):
|
|
"""
|
|
Set base_name
|
|
|
|
Parameters
|
|
----------
|
|
base_name : str, optional
|
|
base_name base name of .inp/.frd file (without extension).
|
|
It is used to construct .inp file path that is passed to CalculiX ccx
|
|
"""
|
|
if base_name is None:
|
|
self.base_name = ""
|
|
else:
|
|
self.base_name = base_name
|
|
# Update inp file name
|
|
self.set_inp_file_name()
|
|
|
|
def set_inp_file_name(self, inp_file_name=None):
|
|
"""
|
|
Set inp file name. Normally inp file name is set by write_inp_file.
|
|
That name is also used to determine location and name of frd result file.
|
|
|
|
Parameters
|
|
----------
|
|
inp_file_name : str, optional
|
|
input file name path
|
|
"""
|
|
if inp_file_name is not None:
|
|
self.inp_file_name = inp_file_name
|
|
else:
|
|
self.inp_file_name = os.path.join(self.working_dir, (self.base_name + ".inp"))
|
|
|
|
def setup_working_dir(self, param_working_dir=None, create=False):
|
|
"""Set working dir for solver execution.
|
|
|
|
Parameters
|
|
----------
|
|
param_working_dir : str, optional
|
|
directory to be used for writing
|
|
create : bool, optional
|
|
Should the working directory be created if it does not exist
|
|
"""
|
|
self.working_dir = ""
|
|
# try to use given working dir or overwrite with solver working dir
|
|
fem_general_prefs = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Fem/General")
|
|
if param_working_dir is not None:
|
|
self.working_dir = param_working_dir
|
|
if femutils.check_working_dir(self.working_dir) is not True:
|
|
if create is True:
|
|
FreeCAD.Console.PrintMessage(
|
|
"Dir given as parameter \'{}\' doesn't exist.\n".format(self.working_dir)
|
|
)
|
|
else:
|
|
FreeCAD.Console.PrintError(
|
|
"Dir given as parameter \'{}\' doesn't exist "
|
|
"and create parameter is set to False.\n"
|
|
.format(self.working_dir)
|
|
)
|
|
self.working_dir = femutils.get_pref_working_dir(self.solver)
|
|
FreeCAD.Console.PrintMessage(
|
|
"Dir \'{}\' will be used instead.\n"
|
|
.format(self.working_dir)
|
|
)
|
|
elif fem_general_prefs.GetBool("OverwriteSolverWorkingDirectory", True) is False:
|
|
self.working_dir = self.solver.WorkingDir
|
|
if femutils.check_working_dir(self.working_dir) is not True:
|
|
if self.working_dir == '':
|
|
FreeCAD.Console.PrintError(
|
|
"Working Dir is set to be used from solver object "
|
|
"but Dir from solver object \'{}\' is empty.\n"
|
|
.format(self.working_dir)
|
|
)
|
|
else:
|
|
FreeCAD.Console.PrintError(
|
|
"Dir from solver object \'{}\' doesn't exist.\n"
|
|
.format(self.working_dir)
|
|
)
|
|
self.working_dir = femutils.get_pref_working_dir(self.solver)
|
|
FreeCAD.Console.PrintMessage(
|
|
"Dir \'{}\' will be used instead.\n"
|
|
.format(self.working_dir)
|
|
)
|
|
else:
|
|
self.working_dir = femutils.get_pref_working_dir(self.solver)
|
|
|
|
# check working_dir exist, if not use a tmp dir and inform the user
|
|
if femutils.check_working_dir(self.working_dir) is not True:
|
|
FreeCAD.Console.PrintError(
|
|
"Dir \'{}\' doesn't exist or cannot be created.\n"
|
|
.format(self.working_dir)
|
|
)
|
|
self.working_dir = femutils.get_temp_dir(self.solver)
|
|
FreeCAD.Console.PrintMessage(
|
|
"Dir \'{}\' will be used instead.\n"
|
|
.format(self.working_dir)
|
|
)
|
|
|
|
# Update inp file name
|
|
self.set_inp_file_name()
|
|
|
|
def write_inp_file(self):
|
|
import femsolver.calculix.writer as iw
|
|
self.inp_file_name = ""
|
|
try:
|
|
inp_writer = iw.FemInputWriterCcx(
|
|
self.analysis,
|
|
self.solver,
|
|
self.mesh,
|
|
self.member,
|
|
self.working_dir
|
|
)
|
|
self.inp_file_name = inp_writer.write_calculix_input_file()
|
|
except:
|
|
FreeCAD.Console.PrintError(
|
|
"Unexpected error when writing CalculiX input file: {}\n"
|
|
.format(sys.exc_info()[0])
|
|
)
|
|
raise
|
|
|
|
def setup_ccx(self, ccx_binary=None, ccx_binary_sig="CalculiX"):
|
|
"""Set Calculix binary path and validate its execution.
|
|
|
|
Parameters
|
|
----------
|
|
ccx_binary : str, optional
|
|
It defaults to `None`. The path to the `ccx` binary. If it is `None`,
|
|
the path is guessed.
|
|
ccx_binary_sig : str, optional
|
|
Defaults to 'CalculiX'. Expected output from `ccx` when run empty.
|
|
|
|
Raises
|
|
------
|
|
Exception
|
|
"""
|
|
error_title = "No CalculiX binary ccx"
|
|
error_message = ""
|
|
from platform import system
|
|
ccx_std_location = FreeCAD.ParamGet(
|
|
"User parameter:BaseApp/Preferences/Mod/Fem/Ccx"
|
|
).GetBool("UseStandardCcxLocation", True)
|
|
if ccx_std_location:
|
|
if system() == "Windows":
|
|
ccx_path = FreeCAD.getHomePath() + "bin/ccx.exe"
|
|
FreeCAD.ParamGet(
|
|
"User parameter:BaseApp/Preferences/Mod/Fem/Ccx"
|
|
).SetString("ccxBinaryPath", ccx_path)
|
|
self.ccx_binary = ccx_path
|
|
elif system() in ("Linux", "Darwin"):
|
|
p1 = subprocess.Popen(["which", "ccx"], stdout=subprocess.PIPE)
|
|
if p1.wait() == 0:
|
|
if sys.version_info.major >= 3:
|
|
ccx_path = p1.stdout.read().decode("utf8").split("\n")[0]
|
|
else:
|
|
ccx_path = p1.stdout.read().split("\n")[0]
|
|
elif p1.wait() == 1:
|
|
error_message = (
|
|
"FEM: CalculiX binary ccx not found in "
|
|
"standard system binary path. "
|
|
"Please install ccx or set path to binary "
|
|
"in FEM preferences tab CalculiX.\n"
|
|
)
|
|
if FreeCAD.GuiUp:
|
|
QtGui.QMessageBox.critical(None, error_title, error_message)
|
|
raise Exception(error_message)
|
|
self.ccx_binary = ccx_path
|
|
else:
|
|
if not ccx_binary:
|
|
self.ccx_prefs = FreeCAD.ParamGet(
|
|
"User parameter:BaseApp/Preferences/Mod/Fem/Ccx"
|
|
)
|
|
ccx_binary = self.ccx_prefs.GetString("ccxBinaryPath", "")
|
|
if not ccx_binary:
|
|
FreeCAD.ParamGet(
|
|
"User parameter:BaseApp/Preferences/Mod/Fem/Ccx"
|
|
).SetBool("UseStandardCcxLocation", True)
|
|
error_message = (
|
|
"FEM: CalculiX binary ccx path not set at all. "
|
|
"The use of standard path was activated in "
|
|
"FEM preferences tab CalculiX. Please try again!\n"
|
|
)
|
|
if FreeCAD.GuiUp:
|
|
QtGui.QMessageBox.critical(None, error_title, error_message)
|
|
raise Exception(error_message)
|
|
self.ccx_binary = ccx_binary
|
|
|
|
startup_info = None
|
|
if system() == "Windows":
|
|
# Windows workaround to avoid blinking terminal window
|
|
startup_info = subprocess.STARTUPINFO()
|
|
startup_info.dwFlags = subprocess.STARTF_USESHOWWINDOW
|
|
ccx_stdout = None
|
|
ccx_stderr = None
|
|
try:
|
|
p = subprocess.Popen(
|
|
[self.ccx_binary],
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE,
|
|
shell=False,
|
|
startupinfo=startup_info
|
|
)
|
|
ccx_stdout, ccx_stderr = p.communicate()
|
|
if ccx_binary_sig in str(ccx_stdout):
|
|
self.ccx_binary_present = True
|
|
else:
|
|
raise Exception("FEM: wrong ccx binary")
|
|
# since we raise an exception the try will fail and
|
|
# the exception later with the error popup will be raised
|
|
# TODO: I'm still able to break it.
|
|
# If user doesn't give a file but a path without a file or
|
|
# a file which is not a binary no exception at all is raised.
|
|
except OSError as e:
|
|
FreeCAD.Console.PrintError("{}\n".format(e))
|
|
if e.errno == 2:
|
|
error_message = (
|
|
"FEM: CalculiX binary ccx \'{}\' not found. "
|
|
"Please set the CalculiX binary ccx path in "
|
|
"FEM preferences tab CalculiX.\n"
|
|
.format(ccx_binary)
|
|
)
|
|
if FreeCAD.GuiUp:
|
|
QtGui.QMessageBox.critical(None, error_title, error_message)
|
|
raise Exception(error_message)
|
|
except Exception as e:
|
|
FreeCAD.Console.PrintError("{}\n".format(e))
|
|
error_message = (
|
|
"FEM: CalculiX ccx \'{}\' output \'{}\' doesn't "
|
|
"contain expected phrase \'{}\'. "
|
|
"There are some problems when running the ccx binary. "
|
|
"Check if ccx runs standalone without FreeCAD.\n"
|
|
.format(ccx_binary, ccx_stdout, ccx_binary_sig)
|
|
)
|
|
if FreeCAD.GuiUp:
|
|
QtGui.QMessageBox.critical(None, error_title, error_message)
|
|
raise Exception(error_message)
|
|
|
|
def start_ccx(self):
|
|
import multiprocessing
|
|
self.ccx_stdout = ""
|
|
self.ccx_stderr = ""
|
|
ont_backup = os.environ.get("OMP_NUM_THREADS")
|
|
self.ccx_prefs = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Fem/Ccx")
|
|
# If number of CPU's specified
|
|
num_cpu_pref = self.ccx_prefs.GetInt("AnalysisNumCPUs", 1)
|
|
if not ont_backup:
|
|
ont_backup = str(num_cpu_pref)
|
|
if num_cpu_pref > 1:
|
|
# If user picked a number use that instead
|
|
_env = os.putenv("OMP_NUM_THREADS", str(num_cpu_pref))
|
|
else:
|
|
_env = os.putenv("OMP_NUM_THREADS", str(multiprocessing.cpu_count()))
|
|
# change cwd because ccx may crash if directory has no write permission
|
|
# there is also a limit of the length of file names so jump to the document directory
|
|
cwd = QtCore.QDir.currentPath()
|
|
f = QtCore.QFileInfo(self.inp_file_name)
|
|
QtCore.QDir.setCurrent(f.path())
|
|
p = subprocess.Popen(
|
|
[self.ccx_binary, "-i ", f.baseName()],
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE,
|
|
shell=False,
|
|
env=_env
|
|
)
|
|
self.ccx_stdout, self.ccx_stderr = p.communicate()
|
|
if sys.version_info.major >= 3:
|
|
self.ccx_stdout = self.ccx_stdout.decode()
|
|
self.ccx_stderr = self.ccx_stderr.decode()
|
|
os.putenv("OMP_NUM_THREADS", ont_backup)
|
|
QtCore.QDir.setCurrent(cwd)
|
|
return p.returncode
|
|
|
|
def get_ccx_version(self):
|
|
self.setup_ccx()
|
|
import re
|
|
from platform import system
|
|
startup_info = None
|
|
if system() == "Windows":
|
|
# Windows workaround to avoid blinking terminal window
|
|
startup_info = subprocess.STARTUPINFO()
|
|
startup_info.dwFlags = subprocess.STARTF_USESHOWWINDOW
|
|
ccx_stdout = None
|
|
ccx_stderr = None
|
|
# Now extract the version number
|
|
p = subprocess.Popen(
|
|
[self.ccx_binary, "-v"],
|
|
stdout=subprocess.PIPE,
|
|
stderr=subprocess.PIPE,
|
|
shell=False,
|
|
startupinfo=startup_info
|
|
)
|
|
ccx_stdout, ccx_stderr = p.communicate()
|
|
if sys.version_info.major >= 3:
|
|
ccx_stdout = ccx_stdout.decode()
|
|
# ccx_stderr = ccx_stderr.decode()
|
|
m = re.search(r"(\d+).(\d+)", ccx_stdout)
|
|
return (int(m.group(1)), int(m.group(2)))
|
|
|
|
def ccx_run(self):
|
|
FreeCAD.Console.PrintMessage("Run CalculiX ...\n")
|
|
if self.test_mode:
|
|
FreeCAD.Console.PrintError("CalculiX can not be run if test_mode is True.\n")
|
|
return
|
|
self.setup_ccx()
|
|
if self.ccx_binary_present is False:
|
|
error_message = (
|
|
"FEM: CalculiX binary ccx \'{}\' not found. "
|
|
"Please set the CalculiX binary ccx path in FEM preferences tab CalculiX.\n"
|
|
.format(self.ccx_binary)
|
|
)
|
|
if FreeCAD.GuiUp:
|
|
QtGui.QMessageBox.critical(None, "No CalculiX binary ccx", error_message)
|
|
raise Exception(error_message)
|
|
progress_bar = FreeCAD.Base.ProgressIndicator()
|
|
progress_bar.start("Everything seams fine. CalculiX ccx will be executed ...", 0)
|
|
ret_code = 0
|
|
ret_code = self.start_ccx()
|
|
self.finished.emit(ret_code)
|
|
progress_bar.stop()
|
|
if ret_code or self.ccx_stderr:
|
|
if ret_code == 201 and self.solver.AnalysisType == "check":
|
|
FreeCAD.Console.PrintMessage(
|
|
"It seams we run into NOANALYSIS problem, "
|
|
"thus workaround for wrong exit code for *NOANALYSIS check "
|
|
"and set ret_code to 0.\n"
|
|
)
|
|
# https://forum.freecadweb.org/viewtopic.php?f=18&t=31303&start=10#p260743
|
|
ret_code = 0
|
|
else:
|
|
FreeCAD.Console.PrintError("CalculiX failed with exit code {}\n".format(ret_code))
|
|
FreeCAD.Console.PrintMessage("--------start of stderr-------\n")
|
|
FreeCAD.Console.PrintMessage(self.ccx_stderr)
|
|
FreeCAD.Console.PrintMessage("--------end of stderr---------\n")
|
|
FreeCAD.Console.PrintMessage("--------start of stdout-------\n")
|
|
FreeCAD.Console.PrintMessage(self.ccx_stdout)
|
|
FreeCAD.Console.PrintMessage("\n--------end of stdout---------\n")
|
|
FreeCAD.Console.PrintMessage("--------start problems---------\n")
|
|
self.has_no_material_assigned()
|
|
self.has_nonpositive_jacobians()
|
|
FreeCAD.Console.PrintMessage("\n--------end problems---------\n")
|
|
else:
|
|
FreeCAD.Console.PrintMessage("CalculiX finished without error.\n")
|
|
return ret_code
|
|
|
|
def run(self):
|
|
self.update_objects()
|
|
self.setup_working_dir()
|
|
message = self.check_prerequisites()
|
|
if message:
|
|
error_message = (
|
|
"CalculiX was not started due to missing prerequisites:\n{}\n"
|
|
.format(message)
|
|
)
|
|
FreeCAD.Console.PrintError(error_message)
|
|
if FreeCAD.GuiUp:
|
|
QtGui.QMessageBox.critical(
|
|
None,
|
|
"Missing prerequisite",
|
|
error_message
|
|
)
|
|
return False
|
|
else:
|
|
self.write_inp_file()
|
|
if self.inp_file_name == "":
|
|
error_message = "Error on writing CalculiX input file.\n"
|
|
FreeCAD.Console.PrintError(error_message)
|
|
if FreeCAD.GuiUp:
|
|
QtGui.QMessageBox.critical(
|
|
None,
|
|
"Error",
|
|
error_message
|
|
)
|
|
return False
|
|
else:
|
|
FreeCAD.Console.PrintMessage(
|
|
"Writing CalculiX input file completed.\n"
|
|
)
|
|
ret_code = self.ccx_run()
|
|
if ret_code != 0:
|
|
error_message = (
|
|
"CalculiX finished with error {}.\n"
|
|
.format(ret_code)
|
|
)
|
|
FreeCAD.Console.PrintError(error_message)
|
|
if FreeCAD.GuiUp:
|
|
QtGui.QMessageBox.critical(
|
|
None,
|
|
"Error",
|
|
error_message
|
|
)
|
|
return False
|
|
else:
|
|
self.load_results()
|
|
# TODO: output an error message if there where problems reading the results
|
|
return True
|
|
|
|
def has_no_material_assigned(self):
|
|
if " *ERROR in calinput: no material was assigned" in self.ccx_stdout:
|
|
without_material_elements = []
|
|
without_material_elemnodes = []
|
|
for line in self.ccx_stdout.splitlines():
|
|
if "to element" in line:
|
|
# print(line)
|
|
# print(line.split())
|
|
non_mat_ele = int(line.split()[2])
|
|
# print(non_mat_ele)
|
|
if non_mat_ele not in without_material_elements:
|
|
without_material_elements.append(non_mat_ele)
|
|
for e in without_material_elements:
|
|
for n in self.mesh.FemMesh.getElementNodes(e):
|
|
without_material_elemnodes.append(n)
|
|
without_material_elements = sorted(without_material_elements)
|
|
without_material_elemnodes = sorted(without_material_elemnodes)
|
|
command_for_withoutmatnodes = (
|
|
"without_material_elemnodes = {}"
|
|
.format(without_material_elemnodes)
|
|
)
|
|
command_to_highlight = (
|
|
"Gui.ActiveDocument.{}.HighlightedNodes = without_material_elemnodes"
|
|
.format(self.mesh.Name)
|
|
)
|
|
# some output for the user
|
|
FreeCAD.Console.PrintError(
|
|
"\n\nCalculiX returned an error due to elements without materials.\n"
|
|
)
|
|
FreeCAD.Console.PrintMessage(
|
|
"without_material_elements = {}\n"
|
|
.format(without_material_elements)
|
|
)
|
|
FreeCAD.Console.PrintMessage(command_for_withoutmatnodes + "\n")
|
|
if FreeCAD.GuiUp:
|
|
import FreeCADGui
|
|
# with this the list without_material_elemnodes
|
|
# will be available for further user interaction
|
|
FreeCADGui.doCommand(command_for_withoutmatnodes)
|
|
FreeCAD.Console.PrintMessage("\n")
|
|
FreeCADGui.doCommand(command_to_highlight)
|
|
FreeCAD.Console.PrintMessage(
|
|
"\nFollowing some commands to copy. "
|
|
"They will highlight the elements without materials "
|
|
"or to reset the highlighted nodes:\n"
|
|
)
|
|
FreeCAD.Console.PrintMessage(command_to_highlight + "\n")
|
|
# command to reset the Highlighted Nodes
|
|
FreeCAD.Console.PrintMessage(
|
|
"Gui.ActiveDocument.{}.HighlightedNodes = []\n\n"
|
|
.format(self.mesh.Name)
|
|
)
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
def has_nonpositive_jacobians(self):
|
|
if "*ERROR in e_c3d: nonpositive jacobian" in self.ccx_stdout:
|
|
nonpositive_jacobian_elements = []
|
|
nonpositive_jacobian_elenodes = []
|
|
for line in self.ccx_stdout.splitlines():
|
|
if "determinant in element" in line:
|
|
# print(line)
|
|
# print(line.split())
|
|
non_posjac_ele = int(line.split()[3])
|
|
# print(non_posjac_ele)
|
|
if non_posjac_ele not in nonpositive_jacobian_elements:
|
|
nonpositive_jacobian_elements.append(non_posjac_ele)
|
|
for e in nonpositive_jacobian_elements:
|
|
for n in self.mesh.FemMesh.getElementNodes(e):
|
|
nonpositive_jacobian_elenodes.append(n)
|
|
nonpositive_jacobian_elements = sorted(nonpositive_jacobian_elements)
|
|
nonpositive_jacobian_elenodes = sorted(nonpositive_jacobian_elenodes)
|
|
command_for_nonposjacnodes = (
|
|
"nonpositive_jacobian_elenodes = {}"
|
|
.format(nonpositive_jacobian_elenodes)
|
|
)
|
|
command_to_highlight = (
|
|
"Gui.ActiveDocument.{}.HighlightedNodes = nonpositive_jacobian_elenodes"
|
|
.format(self.mesh.Name)
|
|
)
|
|
# some output for the user
|
|
FreeCAD.Console.PrintError(
|
|
"\n\nCalculiX returned an error due to nonpositive jacobian elements.\n"
|
|
)
|
|
FreeCAD.Console.PrintMessage(
|
|
"nonpositive_jacobian_elements = {}\n"
|
|
.format(nonpositive_jacobian_elements)
|
|
)
|
|
FreeCAD.Console.PrintMessage(command_for_nonposjacnodes + "\n")
|
|
if FreeCAD.GuiUp:
|
|
import FreeCADGui
|
|
# with this the list nonpositive_jacobian_elenodes
|
|
# will be available for further user interaction
|
|
FreeCADGui.doCommand(command_for_nonposjacnodes)
|
|
FreeCAD.Console.PrintMessage("\n")
|
|
FreeCADGui.doCommand(command_to_highlight)
|
|
FreeCAD.Console.PrintMessage(
|
|
"\nFollowing some commands to copy. "
|
|
"They highlight the nonpositive jacobians "
|
|
"or to reset the highlighted nodes:\n"
|
|
)
|
|
FreeCAD.Console.PrintMessage(command_to_highlight + "\n")
|
|
# command to reset the Highlighted Nodes
|
|
FreeCAD.Console.PrintMessage(
|
|
"Gui.ActiveDocument.{}.HighlightedNodes = []\n\n"
|
|
.format(self.mesh.Name)
|
|
)
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
def load_results(self):
|
|
FreeCAD.Console.PrintMessage("We will load the ccx frd and dat result file.\n")
|
|
self.results_present = False
|
|
self.load_results_ccxfrd()
|
|
self.load_results_ccxdat()
|
|
|
|
def load_results_ccxfrd(self):
|
|
"""Load results of ccx calculations from .frd file.
|
|
"""
|
|
import feminout.importCcxFrdResults as importCcxFrdResults
|
|
frd_result_file = os.path.splitext(self.inp_file_name)[0] + ".frd"
|
|
if os.path.isfile(frd_result_file):
|
|
importCcxFrdResults.importFrd(frd_result_file, self.analysis, "CCX_")
|
|
for m in self.analysis.Group:
|
|
if m.isDerivedFrom("Fem::FemResultObject"):
|
|
self.results_present = True
|
|
break
|
|
else:
|
|
if self.solver.AnalysisType == "check":
|
|
for m in self.analysis.Group:
|
|
if m.isDerivedFrom("Fem::FemMeshObjectPython"):
|
|
# we have no result object but a mesh object
|
|
# this happens in NOANALYSIS mode
|
|
break
|
|
else:
|
|
FreeCAD.Console.PrintError("FEM: No result object in active Analysis.\n")
|
|
else:
|
|
raise Exception("FEM: No results found at {}!".format(frd_result_file))
|
|
|
|
def load_results_ccxdat(self):
|
|
"""Load results of ccx calculations from .dat file.
|
|
"""
|
|
import feminout.importCcxDatResults as importCcxDatResults
|
|
dat_result_file = os.path.splitext(self.inp_file_name)[0] + ".dat"
|
|
if os.path.isfile(dat_result_file):
|
|
mode_frequencies = importCcxDatResults.import_dat(dat_result_file, self.analysis)
|
|
else:
|
|
raise Exception("FEM: No .dat results found at {}!".format(dat_result_file))
|
|
if mode_frequencies:
|
|
# print(mode_frequencies)
|
|
for m in self.analysis.Group:
|
|
if m.isDerivedFrom("Fem::FemResultObject") and m.Eigenmode > 0:
|
|
for mf in mode_frequencies:
|
|
if m.Eigenmode == mf["eigenmode"]:
|
|
m.EigenmodeFrequency = mf["frequency"]
|
|
|
|
|
|
class CcxTools(FemToolsCcx):
|
|
|
|
def __init__(self, solver=None):
|
|
FemToolsCcx.__init__(self, None, solver)
|
|
|
|
## @}
|