503 lines
23 KiB
Python
503 lines
23 KiB
Python
#***************************************************************************
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#* *
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#* Copyright (c) 2015 - Qingfeng Xia <qingfeng.xia()eng.ox.ac.uk> *
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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__ = "ViewProvider for FEM mechanical ResultObjectPython"
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__author__ = "Qingfeng Xia, Bernd Hahnebach"
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__url__ = "http://www.freecadweb.org"
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## @package _ViewProviderFemResultMechanical
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# \ingroup FEM
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# \brief FreeCAD ViewProvider for mechanical ResultObjectPython in FEM workbench
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import FreeCAD
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import FreeCADGui
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# for the panel
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import FemGui
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import femresult.resulttools as resulttools
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from PySide import QtCore
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from PySide import QtGui
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from PySide.QtCore import Qt
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from PySide.QtGui import QApplication
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import numpy as np
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class _ViewProviderFemResultMechanical:
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"A View Provider for the FemResultObject Python dervied FemResult class"
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def __init__(self, vobj):
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vobj.Proxy = self
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def getIcon(self):
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"""after load from FCStd file, self.icon does not exist, return constant path instead"""
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return ":/icons/fem-result.svg"
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def attach(self, vobj):
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self.ViewObject = vobj
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self.Object = vobj.Object
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def updateData(self, obj, prop):
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return
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def onChanged(self, vobj, prop):
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return
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def doubleClicked(self, vobj):
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if FreeCADGui.activeWorkbench().name() != 'FemWorkbench':
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FreeCADGui.activateWorkbench("FemWorkbench")
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doc = FreeCADGui.getDocument(vobj.Object.Document)
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if not doc.getInEdit():
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doc.setEdit(vobj.Object.Name)
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else:
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FreeCAD.Console.PrintError('Active Task Dialog found! Please close this one first!\n')
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return True
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def setEdit(self, vobj, mode=0):
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if hasattr(self.Object, "Mesh") and self.Object.Mesh:
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hide_femmeshes_postpiplines()
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# only show the FEM result mesh
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self.Object.Mesh.ViewObject.show()
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taskd = _TaskPanelFemResultShow(self.Object)
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taskd.obj = vobj.Object
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FreeCADGui.Control.showDialog(taskd)
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return True
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else:
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error_message = 'FEM: Result object has no appropriate FEM mesh.\n'
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FreeCAD.Console.PrintError(error_message)
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from PySide import QtGui
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QtGui.QMessageBox.critical(None, 'No result object', error_message)
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return False
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def unsetEdit(self, vobj, mode=0):
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FreeCADGui.Control.closeDialog()
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self.Object.Mesh.ViewObject.hide() # hide the mesh after result viewing is finished, but do not reset the coloring
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return
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def __getstate__(self):
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return None
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def __setstate__(self, state):
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return None
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def claimChildren(self):
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return [self.Object.Mesh] # claimChildren needs to return a list !
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def onDelete(self, feature, subelements):
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try:
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for obj in self.claimChildren():
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obj.ViewObject.show()
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except Exception as err:
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FreeCAD.Console.PrintError("Error in onDelete: " + err.message)
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return True
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class _TaskPanelFemResultShow:
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'''The task panel for the post-processing'''
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def __init__(self, obj):
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self.result_obj = obj
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self.mesh_obj = self.result_obj.Mesh
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# task panel should be started by use of setEdit of view provider
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# in view provider checks: Mesh, active analysis and if Mesh and result are in active analysis
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self.form = FreeCADGui.PySideUic.loadUi(FreeCAD.getHomePath() + "Mod/Fem/Resources/ui/ResultShow.ui")
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self.fem_prefs = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Fem/General")
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self.restore_result_settings_in_dialog = self.fem_prefs.GetBool("RestoreResultDialog", True)
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# Connect Signals and Slots
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# result type radio buttons
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QtCore.QObject.connect(self.form.rb_none, QtCore.SIGNAL("toggled(bool)"), self.none_selected)
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QtCore.QObject.connect(self.form.rb_abs_displacement, QtCore.SIGNAL("toggled(bool)"), self.abs_displacement_selected)
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QtCore.QObject.connect(self.form.rb_x_displacement, QtCore.SIGNAL("toggled(bool)"), self.x_displacement_selected)
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QtCore.QObject.connect(self.form.rb_y_displacement, QtCore.SIGNAL("toggled(bool)"), self.y_displacement_selected)
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QtCore.QObject.connect(self.form.rb_z_displacement, QtCore.SIGNAL("toggled(bool)"), self.z_displacement_selected)
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QtCore.QObject.connect(self.form.rb_temperature, QtCore.SIGNAL("toggled(bool)"), self.temperature_selected)
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QtCore.QObject.connect(self.form.rb_vm_stress, QtCore.SIGNAL("toggled(bool)"), self.vm_stress_selected)
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QtCore.QObject.connect(self.form.rb_maxprin, QtCore.SIGNAL("toggled(bool)"), self.max_prin_selected)
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QtCore.QObject.connect(self.form.rb_minprin, QtCore.SIGNAL("toggled(bool)"), self.min_prin_selected)
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QtCore.QObject.connect(self.form.rb_max_shear_stress, QtCore.SIGNAL("toggled(bool)"), self.max_shear_selected)
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QtCore.QObject.connect(self.form.rb_massflowrate, QtCore.SIGNAL("toggled(bool)"), self.massflowrate_selected)
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QtCore.QObject.connect(self.form.rb_networkpressure, QtCore.SIGNAL("toggled(bool)"), self.networkpressure_selected)
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QtCore.QObject.connect(self.form.rb_peeq, QtCore.SIGNAL("toggled(bool)"), self.peeq_selected)
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# displacement
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QtCore.QObject.connect(self.form.cb_show_displacement, QtCore.SIGNAL("clicked(bool)"), self.show_displacement)
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QtCore.QObject.connect(self.form.hsb_displacement_factor, QtCore.SIGNAL("valueChanged(int)"), self.hsb_disp_factor_changed)
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QtCore.QObject.connect(self.form.sb_displacement_factor, QtCore.SIGNAL("valueChanged(int)"), self.sb_disp_factor_changed)
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QtCore.QObject.connect(self.form.sb_displacement_factor_max, QtCore.SIGNAL("valueChanged(int)"), self.sb_disp_factor_max_changed)
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# user defined equation
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QtCore.QObject.connect(self.form.user_def_eq, QtCore.SIGNAL("textchanged()"), self.user_defined_text)
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QtCore.QObject.connect(self.form.calculate, QtCore.SIGNAL("clicked()"), self.calculate)
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self.update()
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if self.restore_result_settings_in_dialog:
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self.restore_result_dialog()
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else:
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self.restore_initial_result_dialog()
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def restore_result_dialog(self):
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try:
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rt = FreeCAD.FEM_dialog["results_type"]
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if rt == "None":
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self.form.rb_none.setChecked(True)
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self.none_selected(True)
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elif rt == "Uabs":
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self.form.rb_abs_displacement.setChecked(True)
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self.abs_displacement_selected(True)
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elif rt == "U1":
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self.form.rb_x_displacement.setChecked(True)
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self.x_displacement_selected(True)
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elif rt == "U2":
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self.form.rb_y_displacement.setChecked(True)
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self.y_displacement_selected(True)
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elif rt == "U3":
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self.form.rb_z_displacement.setChecked(True)
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self.z_displacement_selected(True)
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elif rt == "Temp":
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self.form.rb_temperature.setChecked(True)
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self.temperature_selected(True)
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elif rt == "Sabs":
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self.form.rb_vm_stress.setChecked(True)
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self.vm_stress_selected(True)
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elif rt == "MaxPrin":
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self.form.rb_maxprin.setChecked(True)
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self.max_prin_selected(True)
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elif rt == "MinPrin":
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self.form.rb_minprin.setChecked(True)
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self.min_prin_selected(True)
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elif rt == "MaxShear":
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self.form.rb_max_shear_stress.setChecked(True)
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self.max_shear_selected(True)
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elif rt == "MFlow":
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self.form.rb_massflowrate.setChecked(True)
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self.massflowrate_selected(True)
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elif rt == "NPress":
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self.form.rb_networkpressure.setChecked(True)
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self.networkpressure_selected(True)
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elif rt == "Peeq":
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self.form.rb_peeq.setChecked(True)
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self.peeq_selected(True)
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sd = FreeCAD.FEM_dialog["show_disp"]
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self.form.cb_show_displacement.setChecked(sd)
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self.show_displacement(sd)
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df = FreeCAD.FEM_dialog["disp_factor"]
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dfm = FreeCAD.FEM_dialog["disp_factor_max"]
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self.form.hsb_displacement_factor.setMaximum(dfm)
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self.form.hsb_displacement_factor.setValue(df)
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self.form.sb_displacement_factor_max.setValue(dfm)
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self.form.sb_displacement_factor.setValue(df)
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except:
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self.restore_initial_result_dialog()
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def restore_initial_result_dialog(self):
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FreeCAD.FEM_dialog = {"results_type": "None", "show_disp": False,
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"disp_factor": 0, "disp_factor_max": 100}
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self.reset_mesh_deformation()
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self.reset_mesh_color()
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def getStandardButtons(self):
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return int(QtGui.QDialogButtonBox.Close)
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def get_result_stats(self, type_name):
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return resulttools.get_stats(self.result_obj, type_name)
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def none_selected(self, state):
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FreeCAD.FEM_dialog["results_type"] = "None"
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self.set_result_stats("mm", 0.0, 0.0, 0.0)
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self.reset_mesh_color()
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def abs_displacement_selected(self, state):
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FreeCAD.FEM_dialog["results_type"] = "Uabs"
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self.select_displacement_type("Uabs")
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def x_displacement_selected(self, state):
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FreeCAD.FEM_dialog["results_type"] = "U1"
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self.select_displacement_type("U1")
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def y_displacement_selected(self, state):
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FreeCAD.FEM_dialog["results_type"] = "U2"
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self.select_displacement_type("U2")
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def z_displacement_selected(self, state):
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FreeCAD.FEM_dialog["results_type"] = "U3"
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self.select_displacement_type("U3")
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def vm_stress_selected(self, state):
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FreeCAD.FEM_dialog["results_type"] = "Sabs"
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QApplication.setOverrideCursor(Qt.WaitCursor)
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if self.suitable_results:
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self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, self.result_obj.StressValues)
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(minm, avg, maxm) = self.get_result_stats("Sabs")
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self.set_result_stats("MPa", minm, avg, maxm)
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QtGui.qApp.restoreOverrideCursor()
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def max_shear_selected(self, state):
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FreeCAD.FEM_dialog["results_type"] = "MaxShear"
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QApplication.setOverrideCursor(Qt.WaitCursor)
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if self.suitable_results:
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self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, self.result_obj.MaxShear)
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(minm, avg, maxm) = self.get_result_stats("MaxShear")
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self.set_result_stats("MPa", minm, avg, maxm)
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QtGui.qApp.restoreOverrideCursor()
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def max_prin_selected(self, state):
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FreeCAD.FEM_dialog["results_type"] = "MaxPrin"
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QApplication.setOverrideCursor(Qt.WaitCursor)
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if self.suitable_results:
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self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, self.result_obj.PrincipalMax)
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(minm, avg, maxm) = self.get_result_stats("MaxPrin")
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self.set_result_stats("MPa", minm, avg, maxm)
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QtGui.qApp.restoreOverrideCursor()
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def temperature_selected(self, state):
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FreeCAD.FEM_dialog["results_type"] = "Temp"
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QApplication.setOverrideCursor(Qt.WaitCursor)
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if self.suitable_results:
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self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, self.result_obj.Temperature)
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(minm, avg, maxm) = self.get_result_stats("Temp")
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self.set_result_stats("K", minm, avg, maxm)
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QtGui.qApp.restoreOverrideCursor()
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def massflowrate_selected(self, state):
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FreeCAD.FEM_dialog["results_type"] = "MFlow"
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QApplication.setOverrideCursor(Qt.WaitCursor)
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if self.suitable_results:
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self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, self.result_obj.MassFlowRate)
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(minm, avg, maxm) = self.get_result_stats("MFlow")
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self.set_result_stats("kg/s", minm, avg, maxm)
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QtGui.qApp.restoreOverrideCursor()
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def networkpressure_selected(self, state):
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FreeCAD.FEM_dialog["results_type"] = "NPress"
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QApplication.setOverrideCursor(Qt.WaitCursor)
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if self.suitable_results:
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self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, self.result_obj.NetworkPressure)
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(minm, avg, maxm) = self.get_result_stats("NPress")
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self.set_result_stats("MPa", minm, avg, maxm)
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QtGui.qApp.restoreOverrideCursor()
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def min_prin_selected(self, state):
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FreeCAD.FEM_dialog["results_type"] = "MinPrin"
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QApplication.setOverrideCursor(Qt.WaitCursor)
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if self.suitable_results:
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self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, self.result_obj.PrincipalMin)
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(minm, avg, maxm) = self.get_result_stats("MinPrin")
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self.set_result_stats("MPa", minm, avg, maxm)
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QtGui.qApp.restoreOverrideCursor()
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def peeq_selected(self, state):
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FreeCAD.FEM_dialog["results_type"] = "Peeq"
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QApplication.setOverrideCursor(Qt.WaitCursor)
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if self.suitable_results:
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self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, self.result_obj.Peeq)
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(minm, avg, maxm) = self.get_result_stats("Peeq")
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self.set_result_stats("", minm, avg, maxm)
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QtGui.qApp.restoreOverrideCursor()
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def user_defined_text(self, equation):
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FreeCAD.FEM_dialog["results_type"] = "user"
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self.form.user_def_eq.toPlainText()
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def calculate(self):
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FreeCAD.FEM_dialog["results_type"] = "None"
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self.update()
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self.restore_result_dialog()
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# Convert existing values to numpy array
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P1 = np.array(self.result_obj.PrincipalMax)
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P2 = np.array(self.result_obj.PrincipalMed)
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P3 = np.array(self.result_obj.PrincipalMin)
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Von = np.array(self.result_obj.StressValues)
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Peeq = np.array(self.result_obj.Peeq)
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T = np.array(self.result_obj.Temperature)
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MF = np.array(self.result_obj.MassFlowRate)
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NP = np.array(self.result_obj.NetworkPressure)
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dispvectors = np.array(self.result_obj.DisplacementVectors)
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x = np.array(dispvectors[:, 0])
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y = np.array(dispvectors[:, 1])
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z = np.array(dispvectors[:, 2])
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stressvectors = np.array(self.result_obj.StressVectors)
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sx = np.array(stressvectors[:, 0])
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sy = np.array(stressvectors[:, 1])
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sz = np.array(stressvectors[:, 2])
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strainvectors = np.array(self.result_obj.StrainVectors)
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ex = np.array(strainvectors[:, 0])
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ey = np.array(strainvectors[:, 1])
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ez = np.array(strainvectors[:, 2])
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userdefined_eq = self.form.user_def_eq.toPlainText() # Get equation to be used
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UserDefinedFormula = eval(userdefined_eq).tolist()
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self.result_obj.UserDefined = UserDefinedFormula
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minm = min(UserDefinedFormula)
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avg = sum(UserDefinedFormula) / len(UserDefinedFormula)
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maxm = max(UserDefinedFormula)
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QApplication.setOverrideCursor(Qt.WaitCursor)
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if self.suitable_results:
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self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, UserDefinedFormula)
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self.set_result_stats("", minm, avg, maxm)
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QtGui.qApp.restoreOverrideCursor()
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del x, y, z, T, Von, Peeq, P1, P2, P3, sx, sy, sz, ex, ey, ez, MF, NP # Dummy use to get around flake8, variables not being used
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def select_displacement_type(self, disp_type):
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QApplication.setOverrideCursor(Qt.WaitCursor)
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if disp_type == "Uabs":
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if self.suitable_results:
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self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, self.result_obj.DisplacementLengths)
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else:
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match = {"U1": 0, "U2": 1, "U3": 2}
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d = zip(*self.result_obj.DisplacementVectors)
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displacements = list(d[match[disp_type]])
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if self.suitable_results:
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self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, displacements)
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(minm, avg, maxm) = self.get_result_stats(disp_type)
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self.set_result_stats("mm", minm, avg, maxm)
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QtGui.qApp.restoreOverrideCursor()
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def set_result_stats(self, unit, minm, avg, maxm):
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self.form.le_min.setProperty("unit", unit)
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self.form.le_min.setText("{:.6} {}".format(minm, unit))
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self.form.le_avg.setProperty("unit", unit)
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self.form.le_avg.setText("{:.6} {}".format(avg, unit))
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self.form.le_max.setProperty("unit", unit)
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self.form.le_max.setText("{:.6} {}".format(maxm, unit))
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def update_displacement(self, factor=None):
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if factor is None:
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if FreeCAD.FEM_dialog["show_disp"]:
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factor = self.form.hsb_displacement_factor.value()
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else:
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factor = 0.0
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self.mesh_obj.ViewObject.applyDisplacement(factor)
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def show_displacement(self, checked):
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QApplication.setOverrideCursor(Qt.WaitCursor)
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FreeCAD.FEM_dialog["show_disp"] = checked
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if "result_obj" in FreeCAD.FEM_dialog:
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if FreeCAD.FEM_dialog["result_obj"] != self.result_obj:
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self.update_displacement()
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FreeCAD.FEM_dialog["result_obj"] = self.result_obj
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if self.suitable_results:
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self.mesh_obj.ViewObject.setNodeDisplacementByVectors(self.result_obj.NodeNumbers, self.result_obj.DisplacementVectors)
|
|
self.update_displacement()
|
|
QtGui.qApp.restoreOverrideCursor()
|
|
|
|
def hsb_disp_factor_changed(self, value):
|
|
self.form.sb_displacement_factor.setValue(value)
|
|
self.update_displacement()
|
|
|
|
def sb_disp_factor_max_changed(self, value):
|
|
FreeCAD.FEM_dialog["disp_factor_max"] = value
|
|
self.form.hsb_displacement_factor.setMaximum(value)
|
|
|
|
def sb_disp_factor_changed(self, value):
|
|
FreeCAD.FEM_dialog["disp_factor"] = value
|
|
self.form.hsb_displacement_factor.setValue(value)
|
|
|
|
def disable_empty_result_buttons(self):
|
|
''' disable radio buttons if result does not exists in result object'''
|
|
'''assignments
|
|
DisplacementLengths --> rb_abs_displacement
|
|
DisplacementVectors --> rb_x_displacement, rb_y_displacement, rb_z_displacement
|
|
Temperature --> rb_temperature
|
|
StressValues --> rb_vm_stress
|
|
PrincipalMax --> rb_maxprin
|
|
PrincipalMin --> rb_minprin
|
|
MaxShear --> rb_max_shear_stress
|
|
MassFlowRate --> rb_massflowrate
|
|
NetworkPressure --> rb_networkpressure
|
|
Peeq --> rb_peeq'''
|
|
if len(self.result_obj.DisplacementLengths) == 0:
|
|
self.form.rb_abs_displacement.setEnabled(0)
|
|
if len(self.result_obj.DisplacementVectors) == 0:
|
|
self.form.rb_x_displacement.setEnabled(0)
|
|
self.form.rb_y_displacement.setEnabled(0)
|
|
self.form.rb_z_displacement.setEnabled(0)
|
|
if len(self.result_obj.Temperature) == 0:
|
|
self.form.rb_temperature.setEnabled(0)
|
|
if len(self.result_obj.StressValues) == 0:
|
|
self.form.rb_vm_stress.setEnabled(0)
|
|
if len(self.result_obj.PrincipalMax) == 0:
|
|
self.form.rb_maxprin.setEnabled(0)
|
|
if len(self.result_obj.PrincipalMin) == 0:
|
|
self.form.rb_minprin.setEnabled(0)
|
|
if len(self.result_obj.MaxShear) == 0:
|
|
self.form.rb_max_shear_stress.setEnabled(0)
|
|
if len(self.result_obj.MassFlowRate) == 0:
|
|
self.form.rb_massflowrate.setEnabled(0)
|
|
if len(self.result_obj.NetworkPressure) == 0:
|
|
self.form.rb_networkpressure.setEnabled(0)
|
|
if len(self.result_obj.Peeq) == 0:
|
|
self.form.rb_peeq.setEnabled(0)
|
|
|
|
def update(self):
|
|
self.suitable_results = False
|
|
self.disable_empty_result_buttons()
|
|
if (self.mesh_obj.FemMesh.NodeCount == len(self.result_obj.NodeNumbers)):
|
|
self.suitable_results = True
|
|
hide_parts_constraints()
|
|
else:
|
|
if not self.mesh_obj.FemMesh.VolumeCount:
|
|
error_message = 'FEM: Graphical bending stress output for beam or shell FEM Meshes not yet supported.\n'
|
|
FreeCAD.Console.PrintError(error_message)
|
|
QtGui.QMessageBox.critical(None, 'No result object', error_message)
|
|
else:
|
|
error_message = 'FEM: Result node numbers are not equal to FEM Mesh NodeCount.\n'
|
|
FreeCAD.Console.PrintError(error_message)
|
|
QtGui.QMessageBox.critical(None, 'No result object', error_message)
|
|
|
|
def reset_mesh_deformation(self):
|
|
self.mesh_obj.ViewObject.applyDisplacement(0.0)
|
|
|
|
def reset_mesh_color(self):
|
|
self.mesh_obj.ViewObject.NodeColor = {}
|
|
self.mesh_obj.ViewObject.ElementColor = {}
|
|
node_numbers = self.mesh_obj.FemMesh.Nodes.keys()
|
|
zero_values = [0] * len(node_numbers)
|
|
self.mesh_obj.ViewObject.setNodeColorByScalars(node_numbers, zero_values)
|
|
|
|
def reject(self):
|
|
FreeCADGui.Control.closeDialog() # if the taks panell is called from Command obj is not in edit mode thus reset edit does not cleses the dialog, may be do not call but set in edit instead
|
|
FreeCADGui.ActiveDocument.resetEdit()
|
|
|
|
|
|
# helper
|
|
def hide_femmeshes_postpiplines():
|
|
# hide all visible FEM mesh objects and VTK FemPostPipeline objects
|
|
for o in FreeCAD.ActiveDocument.Objects:
|
|
if o.isDerivedFrom("Fem::FemMeshObject") or o.isDerivedFrom("Fem::FemPostPipeline"):
|
|
o.ViewObject.hide()
|
|
|
|
|
|
def hide_parts_constraints():
|
|
fem_prefs = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Fem/General")
|
|
hide_constraints = fem_prefs.GetBool("HideConstraint", False)
|
|
if hide_constraints:
|
|
for o in FreeCAD.ActiveDocument.Objects:
|
|
if o.isDerivedFrom('Fem::FemAnalysis'):
|
|
for acnstrmesh in FemGui.getActiveAnalysis().Group:
|
|
if "Constraint" in acnstrmesh.TypeId:
|
|
acnstrmesh.ViewObject.Visibility = False
|
|
break
|