Files
create/src/Mod/Fem/femguiobjects/_ViewProviderFemResultMechanical.py
2019-07-02 12:54:50 +02:00

621 lines
25 KiB
Python

# ***************************************************************************
# * *
# * Copyright (c) 2015 Qingfeng Xia <qingfeng.xia()eng.ox.ac.uk> *
# * *
# * 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 result mechanical ViewProvider for the document object"
__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
# for the panel
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
False if FemGui.__name__ else True # flake8, dummy FemGui usage
class _ViewProviderFemResultMechanical:
"A View Provider for the FemResultObject Python derived 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-post-result-show.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 opening 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()
# hide the mesh after result viewing is finished, but do not reset the coloring
self.Object.Mesh.ViewObject.hide()
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
# TODO: move to combo box, to be independent from result types and result types count
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()
# initialize scale factor for show displacement
scale_factor = get_displacement_scale_factor(self.result_obj)
self.form.sb_displacement_factor.setValue(scale_factor)
self.form.hsb_displacement_factor.setValue(scale_factor)
diggits_scale_factor = len(str(abs(int(scale_factor))))
new_max_factor = 10 ** diggits_scale_factor
self.form.sb_displacement_factor_max.setValue(new_max_factor)
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):
self.result_selected("Uabs", self.result_obj.DisplacementLengths, "mm")
def x_displacement_selected(self, state):
res_disp_u1 = self.get_scalar_disp_list(
self.result_obj.DisplacementVectors, 0
)
self.result_selected("U1", res_disp_u1, "mm")
def y_displacement_selected(self, state):
res_disp_u2 = self.get_scalar_disp_list(
self.result_obj.DisplacementVectors, 1
)
self.result_selected("U2", res_disp_u2, "mm")
def z_displacement_selected(self, state):
res_disp_u3 = self.get_scalar_disp_list(
self.result_obj.DisplacementVectors, 2
)
self.result_selected("U3", res_disp_u3, "mm")
def vm_stress_selected(self, state):
self.result_selected("Sabs", self.result_obj.StressValues, "MPa")
def max_shear_selected(self, state):
self.result_selected("MaxShear", self.result_obj.MaxShear, "MPa")
def max_prin_selected(self, state):
self.result_selected("MaxPrin", self.result_obj.PrincipalMax, "MPa")
def temperature_selected(self, state):
self.result_selected("Temp", self.result_obj.Temperature, "K")
def massflowrate_selected(self, state):
self.result_selected("MFlow", self.result_obj.MassFlowRate, "kg/s")
def networkpressure_selected(self, state):
self.result_selected("NPress", self.result_obj.NetworkPressure, "MPa")
def min_prin_selected(self, state):
self.result_selected("MinPrin", self.result_obj.PrincipalMin, "MPa")
def peeq_selected(self, state):
self.result_selected("Peeq", self.result_obj.Peeq, "")
def user_defined_text(self, equation):
FreeCAD.FEM_dialog["results_type"] = "user"
self.form.user_def_eq.toPlainText()
def calculate(self):
# Convert existing result values to numpy array
# scalars
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)
sxx = np.array(self.result_obj.NodeStressXX)
syy = np.array(self.result_obj.NodeStressYY)
szz = np.array(self.result_obj.NodeStressZZ)
sxy = np.array(self.result_obj.NodeStressXY)
sxz = np.array(self.result_obj.NodeStressXZ)
syz = np.array(self.result_obj.NodeStressYZ)
exx = np.array(self.result_obj.NodeStrainXX)
eyy = np.array(self.result_obj.NodeStrainYY)
ezz = np.array(self.result_obj.NodeStrainZZ)
exy = np.array(self.result_obj.NodeStrainXY)
exz = np.array(self.result_obj.NodeStrainXZ)
eyz = np.array(self.result_obj.NodeStrainYZ)
rx = np.array(self.result_obj.ReinforcementRatio_x)
ry = np.array(self.result_obj.ReinforcementRatio_y)
rz = np.array(self.result_obj.ReinforcementRatio_z)
mc = np.array(self.result_obj.MohrCoulomb)
# vectors
dispvectors = np.array(self.result_obj.DisplacementVectors)
x = np.array(dispvectors[:, 0])
y = np.array(dispvectors[:, 1])
z = np.array(dispvectors[:, 2])
# If PSxVector is empty all UserDefined equation does not work
if self.result_obj.PS1Vector:
ps1vector = np.array(self.result_obj.PS1Vector)
s1x = np.array(ps1vector[:, 0])
s1y = np.array(ps1vector[:, 1])
s1z = np.array(ps1vector[:, 2])
if self.result_obj.PS2Vector:
ps2vector = np.array(self.result_obj.PS2Vector)
s2x = np.array(ps2vector[:, 0])
s2y = np.array(ps2vector[:, 1])
s2z = np.array(ps2vector[:, 2])
if self.result_obj.PS3Vector:
ps3vector = np.array(self.result_obj.PS1Vector)
s3x = np.array(ps3vector[:, 0])
s3y = np.array(ps3vector[:, 1])
s3z = np.array(ps3vector[:, 2])
FreeCAD.FEM_dialog["results_type"] = "None"
self.update()
self.restore_result_dialog()
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)
self.update_colors_stats(UserDefinedFormula, "", minm, avg, maxm)
# Dummy use of the variables to get around flake8 error
del x, y, z, T, Von, Peeq, P1, P2, P3
del sxx, syy, szz, sxy, sxz, syz
del exx, eyy, ezz, exy, exz, eyz
del MF, NP, rx, ry, rz, mc
del s1x, s1y, s1z, s2x, s2y, s2z, s3x, s3y, s3z
def get_scalar_disp_list(self, vector_list, axis):
# list is needed, as zib-object is not subscriptable in py3
d = list(zip(*self.result_obj.DisplacementVectors))
scalar_list = list(d[axis])
return scalar_list
def result_selected(self, res_type, res_values, res_unit):
# What is the FreeCAD.FEM_dialog for ???
# Where is it initialized ?
FreeCAD.FEM_dialog["results_type"] = res_type
(minm, avg, maxm) = self.get_result_stats(res_type)
self.update_colors_stats(res_values, res_unit, minm, avg, maxm)
def update_colors_stats(self, res_values, res_unit, minm, avg, maxm):
QApplication.setOverrideCursor(Qt.WaitCursor)
if self.suitable_results:
self.mesh_obj.ViewObject.setNodeColorByScalars(
self.result_obj.NodeNumbers,
res_values
)
self.set_result_stats(res_unit, 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.setProperty("rawText", "{:.6} {}".format(minm, unit))
self.form.le_avg.setProperty("unit", unit)
self.form.le_avg.setProperty("rawText", "{:.6} {}".format(avg, unit))
self.form.le_max.setProperty("unit", unit)
self.form.le_max.setProperty("rawText", "{:.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):
# 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.Control.closeDialog()
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():
from FemGui import getActiveAnalysis
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 getActiveAnalysis().Group:
if "Constraint" in acnstrmesh.TypeId:
acnstrmesh.ViewObject.Visibility = False
break
def get_displacement_scale_factor(res_obj):
node_items = res_obj.Mesh.FemMesh.Nodes.items()
displacements = res_obj.DisplacementVectors
x_max, y_max, z_max = map(max, zip(*displacements))
positions = [] # list of node vectors
for k, v in node_items:
positions.append(v)
p_x_max, p_y_max, p_z_max = map(max, zip(*positions))
p_x_min, p_y_min, p_z_min = map(min, zip(*positions))
x_span = abs(p_x_max - p_x_min)
y_span = abs(p_y_max - p_y_min)
z_span = abs(p_z_max - p_z_min)
span = max(x_span, y_span, z_span)
max_disp = max(x_max, y_max, z_max)
# FIXME - add max_allowed_disp to Preferences
max_allowed_disp = 0.01 * span
scale = max_allowed_disp / max_disp
return scale