166 lines
6.3 KiB
Python
166 lines
6.3 KiB
Python
# ***************************************************************************
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# * Copyright (c) 2017 Markus Hovorka <m.hovorka@live.de> *
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# * Copyright (c) 2017 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__ = "FreeCAD FEM solver CalculiX tasks"
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__author__ = "Markus Hovorka, 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 subprocess
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import os.path
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import FreeCAD
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import femtools.femutils as femutils
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import femtools.membertools as membertools
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import feminout.importCcxFrdResults as importCcxFrdResults
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import feminout.importCcxDatResults as importCcxDatResults
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from .. import run
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from .. import settings
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from . import writer
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_inputFileName = None
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class Check(run.Check):
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def run(self):
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self.pushStatus("Checking analysis...\n")
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self.checkMesh()
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self.checkMaterial()
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class Prepare(run.Prepare):
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def run(self):
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global _inputFileName
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self.pushStatus("Preparing input files...\n")
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c = membertools.AnalysisMember(self.analysis)
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w = writer.FemInputWriterCcx(
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self.analysis,
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self.solver,
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membertools.get_mesh_to_solve(self.analysis)[0], # pre check has been done already
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c.mats_linear,
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c.mats_nonlinear,
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c.cons_fixed,
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c.cons_displacement,
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c.cons_contact,
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c.cons_planerotation,
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c.cons_transform,
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c.cons_selfweight,
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c.cons_force,
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c.cons_pressure,
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c.cons_temperature,
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c.cons_heatflux,
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c.cons_initialtemperature,
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c.geos_beamsection,
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c.geos_beamrotation,
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c.geos_shellthickness,
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c.geos_fluidsection,
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self.directory
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)
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path = w.write_calculix_input_file()
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# report to user if task succeeded
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if path != "":
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self.pushStatus("Write completed!")
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else:
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self.pushStatus("Writing CalculiX input file failed!")
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_inputFileName = os.path.splitext(os.path.basename(path))[0]
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class Solve(run.Solve):
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def run(self):
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if not _inputFileName:
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# TODO do not run solver
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# do not try to read results in a smarter way than an Exception
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raise Exception("Error on writing CalculiX input file.\n")
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self.pushStatus("Executing solver...\n")
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binary = settings.get_binary("Calculix")
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self._process = subprocess.Popen(
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[binary, "-i", _inputFileName],
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cwd=self.directory,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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self.signalAbort.add(self._process.terminate)
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# output = self._observeSolver(self._process)
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self._process.communicate()
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self.signalAbort.remove(self._process.terminate)
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# if not self.aborted:
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# self._updateOutput(output)
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# del output # get flake8 quiet
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class Results(run.Results):
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def run(self):
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if not _inputFileName:
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# TODO do not run solver
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# do not try to read results in a smarter way than an Exception
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raise Exception("Error on writing CalculiX input file.\n")
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prefs = FreeCAD.ParamGet(
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"User parameter:BaseApp/Preferences/Mod/Fem/General")
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if not prefs.GetBool("KeepResultsOnReRun", False):
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self.purge_results()
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self.load_results_ccxfrd()
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self.load_results_ccxdat()
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def purge_results(self):
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for m in membertools.get_member(self.analysis, "Fem::FemResultObject"):
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if femutils.is_of_type(m.Mesh, "Fem::FemMeshResult"):
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self.analysis.Document.removeObject(m.Mesh.Name)
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self.analysis.Document.removeObject(m.Name)
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FreeCAD.ActiveDocument.recompute()
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def load_results_ccxfrd(self):
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frd_result_file = os.path.join(
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self.directory, _inputFileName + ".frd")
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if os.path.isfile(frd_result_file):
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result_name_prefix = "CalculiX_" + self.solver.AnalysisType + "_"
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importCcxFrdResults.importFrd(
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frd_result_file, self.analysis, result_name_prefix)
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else:
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raise Exception(
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"FEM: No results found at {}!".format(frd_result_file))
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def load_results_ccxdat(self):
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dat_result_file = os.path.join(
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self.directory, _inputFileName + ".dat")
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if os.path.isfile(dat_result_file):
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mode_frequencies = importCcxDatResults.import_dat(
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dat_result_file, self.analysis)
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else:
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raise Exception(
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"FEM: No .dat results found at {}!".format(dat_result_file))
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if mode_frequencies:
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for m in membertools.get_member(self.analysis, "Fem::FemResultObject"):
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if m.Eigenmode > 0:
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for mf in mode_frequencies:
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if m.Eigenmode == mf["eigenmode"]:
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m.EigenmodeFrequency = mf["frequency"]
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## @}
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