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# * Copyright (c) 2017 Bernd Hahnebach <bernd@bimstatik.org> *
# * *
# * This file is part of the FreeCAD CAx development system. *
# * *
# * This program is free software; you can redistribute it and/or modify *
# * it under the terms of the GNU Lesser General Public License (LGPL) *
# * as published by the Free Software Foundation; either version 2 of *
# * the License, or (at your option) any later version. *
# * for detail see the LICENCE text file. *
# * *
# * This program is distributed in the hope that it will be useful, *
# * but WITHOUT ANY WARRANTY; without even the implied warranty of *
# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
# * GNU Library General Public License for more details. *
# * *
# * You should have received a copy of the GNU Library General Public *
# * License along with this program; if not, write to the Free Software *
# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
# * USA *
# * *
# ***************************************************************************
__title__ = "FreeCAD FEM solver Z88 tasks"
__author__ = "Bernd Hahnebach"
__url__ = "https://www.freecad.org"
## \addtogroup FEM
# @{
import os
import os.path
import subprocess
from platform import system
import FreeCAD
from . import writer
from .. import run
from .. import settings
from feminout import importZ88O2Results
from femmesh import meshsetsgetter
from femtools import femutils
from femtools import membertools
SOLVER_TYPES = ["sorcg", "siccg", "choly"]
class Check(run.Check):
def run(self):
self.pushStatus("Checking analysis member...\n")
self.check_mesh_exists()
self.check_material_exists()
self.check_material_single() # no multiple material
self.check_geos_beamsection_single() # no multiple beamsection
self.check_geos_shellthickness_single() # no multiple shellsection
self.check_geos_beamsection_and_shellthickness() # either beams or shells
class Prepare(run.Prepare):
def run(self):
self.pushStatus("Preparing solver input...\n")
# get mesh set data
# TODO see calculix tasks get mesh set data
mesh_obj = membertools.get_mesh_to_solve(self.analysis)[0] # pre check done already
meshdatagetter = meshsetsgetter.MeshSetsGetter(
self.analysis,
self.solver,
mesh_obj,
membertools.AnalysisMember(self.analysis),
)
meshdatagetter.get_mesh_sets()
# write solver input
w = writer.FemInputWriterZ88(
self.analysis, self.solver, mesh_obj, meshdatagetter.member, self.directory
)
path = w.write_solver_input()
# report to user if task succeeded
if path is not None:
self.pushStatus("Writing solver input completed.")
else:
self.pushStatus("Writing solver input failed.")
self.fail()
# print(path)
# z88 does not pass a main input file to the solver
# it passes the directory all input files are in
# not _inputFileName is needed
class Solve(run.Solve):
def run(self):
self.pushStatus("Executing test solver...\n")
# get solver binary
self.pushStatus("Get solver binary...\n")
binary = settings.get_binary("Z88")
if binary is None:
self.pushStatus("Error: The z88r binary has not been found!")
self.fail()
return
prefs = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Fem/Z88")
solver_index = prefs.GetInt("Solver", 0)
solver_name = SOLVER_TYPES[solver_index]
self.pushStatus(f"Used solver: {solver_name}\n")
# run solver test mode
# AFAIK: z88r needs to be run twice
# once in test mode and once in real solve mode
# the subprocess was just copied, it works :-)
# TODO: search out for "Vector GS" and "Vector KOI" and print values
# may be compare with the used ones
self.pushStatus("Executing solver in test mode...\n")
Solve.runZ88(self, "-t", binary, solver_name, "hide")
# run solver real mode
self.pushStatus("Executing solver in real mode...\n")
# starting normal because the user must see the z88 window
Solve.runZ88(self, "-c", binary, solver_name, "normal")
def runZ88(self, command, binary, solver, state):
solver_name = solver
# minimize or hide the popups on Windows
self._process = subprocess.Popen(
[binary, command, "-" + solver_name],
cwd=self.directory,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
startupinfo=femutils.startProgramInfo(state),
)
self.signalAbort.add(self._process.terminate)
self._process.communicate()
self.signalAbort.remove(self._process.terminate)
# for chatching the output see CalculiX or Elmer solver tasks module
class Results(run.Results):
def run(self):
prefs = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Fem/General")
if not prefs.GetBool("KeepResultsOnReRun", False):
self.purge_results()
self.load_results()
def purge_results(self):
self.pushStatus("Purge existing results...\n")
# TODO see calculix result tasks
for m in membertools.get_member(self.analysis, "Fem::FemResultObject"):
if femutils.is_of_type(m.Mesh, "Fem::MeshResult"):
self.analysis.Document.removeObject(m.Mesh.Name)
self.analysis.Document.removeObject(m.Name)
self.analysis.Document.recompute()
def load_results(self):
self.pushStatus("Import new results...\n")
# displacements from z88o2 file
disp_result_file = os.path.join(self.directory, "z88o2.txt")
if os.path.isfile(disp_result_file):
result_name_prefix = "Z88_" + self.solver.AnalysisType + "_"
importZ88O2Results.import_z88_disp(disp_result_file, self.analysis, result_name_prefix)
else:
# TODO: use solver framework status message system
FreeCAD.Console.PrintError(f"FEM: No results found at {disp_result_file}!\n")
self.fail()
## @}
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