#*************************************************************************** #* * #* Copyright (c) 2015 - Qingfeng Xia * #* * #* 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__ = "ViewProvider for FEM mechanical ResultObjectPython" __author__ = "Qingfeng Xia, Bernd Hahnebach" __url__ = "http://www.freecadweb.org" ## @package _ViewProviderFemResultMechanical # \ingroup FEM # \brief FreeCAD ViewProvider for mechanical ResultObjectPython in FEM workbench import FreeCAD import FreeCADGui import FemGui # needed to display the icons in TreeView False if False else FemGui.__name__ # dummy usage of FemGui for flake8, just returns 'FemGui' # for the panel import FemGui import femresult.resulttools as resulttools from PySide import QtCore from PySide import QtGui from PySide.QtCore import Qt from PySide.QtGui import QApplication import numpy as np class _ViewProviderFemResultMechanical: "A View Provider for the FemResultObject Python dervied FemResult class" def __init__(self, vobj): vobj.Proxy = self def getIcon(self): """after load from FCStd file, self.icon does not exist, return constant path instead""" return ":/icons/fem-result.svg" def attach(self, vobj): self.ViewObject = vobj self.Object = vobj.Object def updateData(self, obj, prop): return def onChanged(self, vobj, prop): return def doubleClicked(self, vobj): guidoc = FreeCADGui.getDocument(vobj.Object.Document) # check if another VP is in edit mode, https://forum.freecadweb.org/viewtopic.php?t=13077#p104702 if not guidoc.getInEdit(): guidoc.setEdit(vobj.Object.Name) else: from PySide.QtGui import QMessageBox message = 'Active Task Dialog found! Please close this one before open a new one!' QMessageBox.critical(None, "Error in tree view", message) FreeCAD.Console.PrintError(message + '\n') return True def setEdit(self, vobj, mode=0): if hasattr(self.Object, "Mesh") and self.Object.Mesh: hide_femmeshes_postpiplines() # only show the FEM result mesh self.Object.Mesh.ViewObject.show() taskd = _TaskPanelFemResultShow(self.Object) taskd.obj = vobj.Object FreeCADGui.Control.showDialog(taskd) return True else: error_message = 'FEM: Result object has no appropriate FEM mesh.\n' FreeCAD.Console.PrintError(error_message) from PySide import QtGui QtGui.QMessageBox.critical(None, 'No result object', error_message) return False def unsetEdit(self, vobj, mode=0): FreeCADGui.Control.closeDialog() self.Object.Mesh.ViewObject.hide() # hide the mesh after result viewing is finished, but do not reset the coloring return True def __getstate__(self): return None def __setstate__(self, state): return None def claimChildren(self): return [self.Object.Mesh] # claimChildren needs to return a list ! def onDelete(self, feature, subelements): try: for obj in self.claimChildren(): obj.ViewObject.show() except Exception as err: FreeCAD.Console.PrintError("Error in onDelete: " + err.message) return True class _TaskPanelFemResultShow: '''The task panel for the post-processing''' def __init__(self, obj): self.result_obj = obj self.mesh_obj = self.result_obj.Mesh # task panel should be started by use of setEdit of view provider # in view provider checks: Mesh, active analysis and if Mesh and result are in active analysis self.form = FreeCADGui.PySideUic.loadUi(FreeCAD.getHomePath() + "Mod/Fem/Resources/ui/ResultShow.ui") self.fem_prefs = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Fem/General") self.restore_result_settings_in_dialog = self.fem_prefs.GetBool("RestoreResultDialog", True) # Connect Signals and Slots # result type radio buttons QtCore.QObject.connect(self.form.rb_none, QtCore.SIGNAL("toggled(bool)"), self.none_selected) QtCore.QObject.connect(self.form.rb_abs_displacement, QtCore.SIGNAL("toggled(bool)"), self.abs_displacement_selected) QtCore.QObject.connect(self.form.rb_x_displacement, QtCore.SIGNAL("toggled(bool)"), self.x_displacement_selected) QtCore.QObject.connect(self.form.rb_y_displacement, QtCore.SIGNAL("toggled(bool)"), self.y_displacement_selected) QtCore.QObject.connect(self.form.rb_z_displacement, QtCore.SIGNAL("toggled(bool)"), self.z_displacement_selected) QtCore.QObject.connect(self.form.rb_temperature, QtCore.SIGNAL("toggled(bool)"), self.temperature_selected) QtCore.QObject.connect(self.form.rb_vm_stress, QtCore.SIGNAL("toggled(bool)"), self.vm_stress_selected) QtCore.QObject.connect(self.form.rb_maxprin, QtCore.SIGNAL("toggled(bool)"), self.max_prin_selected) QtCore.QObject.connect(self.form.rb_minprin, QtCore.SIGNAL("toggled(bool)"), self.min_prin_selected) QtCore.QObject.connect(self.form.rb_max_shear_stress, QtCore.SIGNAL("toggled(bool)"), self.max_shear_selected) QtCore.QObject.connect(self.form.rb_massflowrate, QtCore.SIGNAL("toggled(bool)"), self.massflowrate_selected) QtCore.QObject.connect(self.form.rb_networkpressure, QtCore.SIGNAL("toggled(bool)"), self.networkpressure_selected) QtCore.QObject.connect(self.form.rb_peeq, QtCore.SIGNAL("toggled(bool)"), self.peeq_selected) # displacement QtCore.QObject.connect(self.form.cb_show_displacement, QtCore.SIGNAL("clicked(bool)"), self.show_displacement) QtCore.QObject.connect(self.form.hsb_displacement_factor, QtCore.SIGNAL("valueChanged(int)"), self.hsb_disp_factor_changed) QtCore.QObject.connect(self.form.sb_displacement_factor, QtCore.SIGNAL("valueChanged(int)"), self.sb_disp_factor_changed) QtCore.QObject.connect(self.form.sb_displacement_factor_max, QtCore.SIGNAL("valueChanged(int)"), self.sb_disp_factor_max_changed) # user defined equation QtCore.QObject.connect(self.form.user_def_eq, QtCore.SIGNAL("textchanged()"), self.user_defined_text) QtCore.QObject.connect(self.form.calculate, QtCore.SIGNAL("clicked()"), self.calculate) self.update() if self.restore_result_settings_in_dialog: self.restore_result_dialog() else: self.restore_initial_result_dialog() def restore_result_dialog(self): try: rt = FreeCAD.FEM_dialog["results_type"] if rt == "None": self.form.rb_none.setChecked(True) self.none_selected(True) elif rt == "Uabs": self.form.rb_abs_displacement.setChecked(True) self.abs_displacement_selected(True) elif rt == "U1": self.form.rb_x_displacement.setChecked(True) self.x_displacement_selected(True) elif rt == "U2": self.form.rb_y_displacement.setChecked(True) self.y_displacement_selected(True) elif rt == "U3": self.form.rb_z_displacement.setChecked(True) self.z_displacement_selected(True) elif rt == "Temp": self.form.rb_temperature.setChecked(True) self.temperature_selected(True) elif rt == "Sabs": self.form.rb_vm_stress.setChecked(True) self.vm_stress_selected(True) elif rt == "MaxPrin": self.form.rb_maxprin.setChecked(True) self.max_prin_selected(True) elif rt == "MinPrin": self.form.rb_minprin.setChecked(True) self.min_prin_selected(True) elif rt == "MaxShear": self.form.rb_max_shear_stress.setChecked(True) self.max_shear_selected(True) elif rt == "MFlow": self.form.rb_massflowrate.setChecked(True) self.massflowrate_selected(True) elif rt == "NPress": self.form.rb_networkpressure.setChecked(True) self.networkpressure_selected(True) elif rt == "Peeq": self.form.rb_peeq.setChecked(True) self.peeq_selected(True) sd = FreeCAD.FEM_dialog["show_disp"] self.form.cb_show_displacement.setChecked(sd) self.show_displacement(sd) df = FreeCAD.FEM_dialog["disp_factor"] dfm = FreeCAD.FEM_dialog["disp_factor_max"] self.form.hsb_displacement_factor.setMaximum(dfm) self.form.hsb_displacement_factor.setValue(df) self.form.sb_displacement_factor_max.setValue(dfm) self.form.sb_displacement_factor.setValue(df) except: self.restore_initial_result_dialog() def restore_initial_result_dialog(self): FreeCAD.FEM_dialog = {"results_type": "None", "show_disp": False, "disp_factor": 0, "disp_factor_max": 100} self.reset_mesh_deformation() self.reset_mesh_color() def getStandardButtons(self): return int(QtGui.QDialogButtonBox.Close) def get_result_stats(self, type_name): return resulttools.get_stats(self.result_obj, type_name) def none_selected(self, state): FreeCAD.FEM_dialog["results_type"] = "None" self.set_result_stats("mm", 0.0, 0.0, 0.0) self.reset_mesh_color() def abs_displacement_selected(self, state): FreeCAD.FEM_dialog["results_type"] = "Uabs" self.select_displacement_type("Uabs") def x_displacement_selected(self, state): FreeCAD.FEM_dialog["results_type"] = "U1" self.select_displacement_type("U1") def y_displacement_selected(self, state): FreeCAD.FEM_dialog["results_type"] = "U2" self.select_displacement_type("U2") def z_displacement_selected(self, state): FreeCAD.FEM_dialog["results_type"] = "U3" self.select_displacement_type("U3") def vm_stress_selected(self, state): FreeCAD.FEM_dialog["results_type"] = "Sabs" QApplication.setOverrideCursor(Qt.WaitCursor) if self.suitable_results: self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, self.result_obj.StressValues) (minm, avg, maxm) = self.get_result_stats("Sabs") self.set_result_stats("MPa", minm, avg, maxm) QtGui.QApplication.restoreOverrideCursor() def max_shear_selected(self, state): FreeCAD.FEM_dialog["results_type"] = "MaxShear" QApplication.setOverrideCursor(Qt.WaitCursor) if self.suitable_results: self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, self.result_obj.MaxShear) (minm, avg, maxm) = self.get_result_stats("MaxShear") self.set_result_stats("MPa", minm, avg, maxm) QtGui.QApplication.restoreOverrideCursor() def max_prin_selected(self, state): FreeCAD.FEM_dialog["results_type"] = "MaxPrin" QApplication.setOverrideCursor(Qt.WaitCursor) if self.suitable_results: self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, self.result_obj.PrincipalMax) (minm, avg, maxm) = self.get_result_stats("MaxPrin") self.set_result_stats("MPa", minm, avg, maxm) QtGui.QApplication.restoreOverrideCursor() def temperature_selected(self, state): FreeCAD.FEM_dialog["results_type"] = "Temp" QApplication.setOverrideCursor(Qt.WaitCursor) if self.suitable_results: self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, self.result_obj.Temperature) (minm, avg, maxm) = self.get_result_stats("Temp") self.set_result_stats("K", minm, avg, maxm) QtGui.QApplication.restoreOverrideCursor() def massflowrate_selected(self, state): FreeCAD.FEM_dialog["results_type"] = "MFlow" QApplication.setOverrideCursor(Qt.WaitCursor) if self.suitable_results: self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, self.result_obj.MassFlowRate) (minm, avg, maxm) = self.get_result_stats("MFlow") self.set_result_stats("kg/s", minm, avg, maxm) QtGui.QApplication.restoreOverrideCursor() def networkpressure_selected(self, state): FreeCAD.FEM_dialog["results_type"] = "NPress" QApplication.setOverrideCursor(Qt.WaitCursor) if self.suitable_results: self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, self.result_obj.NetworkPressure) (minm, avg, maxm) = self.get_result_stats("NPress") self.set_result_stats("MPa", minm, avg, maxm) QtGui.QApplication.restoreOverrideCursor() def min_prin_selected(self, state): FreeCAD.FEM_dialog["results_type"] = "MinPrin" QApplication.setOverrideCursor(Qt.WaitCursor) if self.suitable_results: self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, self.result_obj.PrincipalMin) (minm, avg, maxm) = self.get_result_stats("MinPrin") self.set_result_stats("MPa", minm, avg, maxm) QtGui.QApplication.restoreOverrideCursor() def peeq_selected(self, state): FreeCAD.FEM_dialog["results_type"] = "Peeq" QApplication.setOverrideCursor(Qt.WaitCursor) if self.suitable_results: self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, self.result_obj.Peeq) (minm, avg, maxm) = self.get_result_stats("Peeq") self.set_result_stats("", minm, avg, maxm) QtGui.QApplication.restoreOverrideCursor() def user_defined_text(self, equation): FreeCAD.FEM_dialog["results_type"] = "user" self.form.user_def_eq.toPlainText() def calculate(self): FreeCAD.FEM_dialog["results_type"] = "None" self.update() self.restore_result_dialog() # Convert existing values to numpy array P1 = np.array(self.result_obj.PrincipalMax) P2 = np.array(self.result_obj.PrincipalMed) P3 = np.array(self.result_obj.PrincipalMin) Von = np.array(self.result_obj.StressValues) Peeq = np.array(self.result_obj.Peeq) T = np.array(self.result_obj.Temperature) MF = np.array(self.result_obj.MassFlowRate) NP = np.array(self.result_obj.NetworkPressure) dispvectors = np.array(self.result_obj.DisplacementVectors) x = np.array(dispvectors[:, 0]) y = np.array(dispvectors[:, 1]) z = np.array(dispvectors[:, 2]) stressvectors = np.array(self.result_obj.StressVectors) sx = np.array(stressvectors[:, 0]) sy = np.array(stressvectors[:, 1]) sz = np.array(stressvectors[:, 2]) strainvectors = np.array(self.result_obj.StrainVectors) ex = np.array(strainvectors[:, 0]) ey = np.array(strainvectors[:, 1]) ez = np.array(strainvectors[:, 2]) userdefined_eq = self.form.user_def_eq.toPlainText() # Get equation to be used UserDefinedFormula = eval(userdefined_eq).tolist() self.result_obj.UserDefined = UserDefinedFormula minm = min(UserDefinedFormula) avg = sum(UserDefinedFormula) / len(UserDefinedFormula) maxm = max(UserDefinedFormula) QApplication.setOverrideCursor(Qt.WaitCursor) if self.suitable_results: self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, UserDefinedFormula) self.set_result_stats("", minm, avg, maxm) QtGui.QApplication.restoreOverrideCursor() del x, y, z, T, Von, Peeq, P1, P2, P3, sx, sy, sz, ex, ey, ez, MF, NP # Dummy use of the variables to get around flake8 error def select_displacement_type(self, disp_type): QApplication.setOverrideCursor(Qt.WaitCursor) if disp_type == "Uabs": if self.suitable_results: self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, self.result_obj.DisplacementLengths) else: match = {"U1": 0, "U2": 1, "U3": 2} d = list(zip(*self.result_obj.DisplacementVectors)) # list is needed, as zib-object is not subscriptable in py3 displacements = list(d[match[disp_type]]) if self.suitable_results: self.mesh_obj.ViewObject.setNodeColorByScalars(self.result_obj.NodeNumbers, displacements) (minm, avg, maxm) = self.get_result_stats(disp_type) self.set_result_stats("mm", minm, avg, maxm) QtGui.QApplication.restoreOverrideCursor() def set_result_stats(self, unit, minm, avg, maxm): self.form.le_min.setProperty("unit", unit) self.form.le_min.setText("{:.6} {}".format(minm, unit)) self.form.le_avg.setProperty("unit", unit) self.form.le_avg.setText("{:.6} {}".format(avg, unit)) self.form.le_max.setProperty("unit", unit) self.form.le_max.setText("{:.6} {}".format(maxm, unit)) def update_displacement(self, factor=None): if factor is None: if FreeCAD.FEM_dialog["show_disp"]: factor = self.form.hsb_displacement_factor.value() else: factor = 0.0 self.mesh_obj.ViewObject.applyDisplacement(factor) def show_displacement(self, checked): QApplication.setOverrideCursor(Qt.WaitCursor) FreeCAD.FEM_dialog["show_disp"] = checked if "result_obj" in FreeCAD.FEM_dialog: if FreeCAD.FEM_dialog["result_obj"] != self.result_obj: self.update_displacement() FreeCAD.FEM_dialog["result_obj"] = self.result_obj if self.suitable_results: self.mesh_obj.ViewObject.setNodeDisplacementByVectors(self.result_obj.NodeNumbers, self.result_obj.DisplacementVectors) self.update_displacement() QtGui.QApplication.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 = list(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 tasks panel is called from Command obj is not in edit mode thus reset edit does not close the dialog, maybe don't 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