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# * Copyright (c) 2016 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__ = "Result import for Z88 displacements format"
__author__ = "Bernd Hahnebach"
__url__ = "https://www.freecad.org"
## @package importZ88O2Results
# \ingroup FEM
# \brief FreeCAD Z88 Disp Reader for FEM workbench
import os
import FreeCAD
from FreeCAD import Console
from builtins import open as pyopen
# ********* generic FreeCAD import and export methods *********
def open(filename):
"called when freecad opens a file"
docname = os.path.splitext(os.path.basename(filename))[0]
insert(filename, docname)
def insert(filename, docname):
"called when freecad wants to import a file"
try:
doc = FreeCAD.getDocument(docname)
except NameError:
doc = FreeCAD.newDocument(docname)
FreeCAD.ActiveDocument = doc
import_z88_disp(filename)
# ********* module specific methods *********
def import_z88_disp(filename, analysis=None, result_name_prefix=None):
"""insert a FreeCAD FEM mechanical result object in the ActiveDocument
pure usage:
import feminout.importZ88O2Results as importZ88O2Results
disp_file = "/pathtofile/z88o2.txt"
importZ88O2Results.import_z88_disp(disp_file)
the z888i1.txt FEMMesh file needs to be in the same directory as z88o2.txt
# ahh, make a new document first ;-)
"""
import ObjectsFem
from . import importZ88Mesh
from . import importToolsFem
from femresult import resulttools
if result_name_prefix is None:
result_name_prefix = ""
disp_read = read_z88_disp(filename)
result_mesh_object = None
if len(disp_read["Nodes"]) > 0:
if analysis:
analysis_object = analysis
# read result mesh
if filename.endswith("z88o2.txt"):
mesh_file = filename.replace("o2", "i1")
mesh_data = importZ88Mesh.read_z88_mesh(mesh_file)
femmesh = importToolsFem.make_femmesh(mesh_data)
result_mesh_object = ObjectsFem.makeMeshResult(FreeCAD.ActiveDocument, "Result_mesh")
result_mesh_object.FemMesh = femmesh
else:
Console.PrintError("Z88 mesh file z88i1.txt not found.\n")
return None
# create result obj
for result_set in disp_read["Results"]:
results_name = result_name_prefix + "results"
res_obj = ObjectsFem.makeResultMechanical(FreeCAD.ActiveDocument, results_name)
res_obj.Mesh = result_mesh_object
res_obj = importToolsFem.fill_femresult_mechanical(res_obj, result_set)
res_obj = resulttools.add_disp_apps(res_obj) # fill DisplacementLengths
res_obj = resulttools.fill_femresult_stats(res_obj) # fill Stats
if analysis:
analysis_object.addObject(res_obj)
if FreeCAD.GuiUp:
if analysis:
import FemGui
FemGui.setActiveAnalysis(analysis_object)
FreeCAD.ActiveDocument.recompute()
else:
Console.PrintError(
"Problem on Z88 result file import. No nodes found in Z88 result file.\n"
)
return None
return res_obj
def read_z88_disp(z88_disp_input):
"""
read a z88 disp file and extract the nodes and elements
z88 Displacement output file is z88o2.txt
works with Z88OS14
"""
nodes = {}
mode_disp = {}
mode_results = {}
results = []
z88_disp_file = pyopen(z88_disp_input, "r")
for no, line in enumerate(z88_disp_file):
lno = no + 1
linelist = line.split()
if lno >= 6:
# disp line
node_no = int(linelist[0])
mode_disp_x = float(linelist[1])
mode_disp_y = float(linelist[2])
if len(linelist) > 3:
mode_disp_z = float(linelist[3])
else:
mode_disp_z = 0.0
mode_disp[node_no] = FreeCAD.Vector(mode_disp_x, mode_disp_y, mode_disp_z)
nodes[node_no] = node_no
mode_results["disp"] = mode_disp
results.append(mode_results)
for r in results[0]["disp"]:
Console.PrintLog("{} --> {}\n".format(r, results[0]["disp"][r]))
z88_disp_file.close()
return {"Nodes": nodes, "Results": results}
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