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_TaskPanelMechanicalMaterial.py
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/
_TaskPanelMechanicalMaterial.py
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# ***************************************************************************
# * *
# * Copyright (c) 2013 - Juergen Riegel <FreeCAD@juergen-riegel.net> *
# * *
# * 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__ = "_TaskPanelMechanicalMaterial"
__author__ = "Juergen Riegel, Bernd Hahnebach"
__url__ = "http://www.freecadweb.org"
import FreeCAD
import FreeCADGui
from PySide import QtGui
from PySide import QtCore
class _TaskPanelMechanicalMaterial:
'''The editmode TaskPanel for MechanicalMaterial objects'''
def __init__(self, obj):
FreeCADGui.Selection.clearSelection()
self.sel_server = None
self.obj = obj
self.material = self.obj.Material
self.references = []
if self.obj.References:
self.tuplereferences = self.obj.References
self.get_references()
self.references_shape_type = None
self.form = FreeCADGui.PySideUic.loadUi(FreeCAD.getHomePath() + "Mod/Fem/TaskPanelMechanicalMaterial.ui")
QtCore.QObject.connect(self.form.pushButton_MatWeb, QtCore.SIGNAL("clicked()"), self.goMatWeb)
QtCore.QObject.connect(self.form.cb_materials, QtCore.SIGNAL("activated(int)"), self.choose_material)
QtCore.QObject.connect(self.form.input_fd_young_modulus, QtCore.SIGNAL("valueChanged(double)"), self.ym_changed)
QtCore.QObject.connect(self.form.spinBox_poisson_ratio, QtCore.SIGNAL("valueChanged(double)"), self.pr_changed)
QtCore.QObject.connect(self.form.input_fd_density, QtCore.SIGNAL("valueChanged(double)"), self.density_changed)
QtCore.QObject.connect(self.form.pushButton_Reference, QtCore.SIGNAL("clicked()"), self.add_references)
self.form.list_References.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
self.form.list_References.connect(self.form.list_References, QtCore.SIGNAL("customContextMenuRequested(QPoint)"), self.references_list_right_clicked)
self.import_materials()
previous_mat_path = self.get_material_path(self.material)
if not previous_mat_path:
material_name = self.get_material_name(self.material)
if material_name != 'None':
FreeCAD.Console.PrintMessage("Previously used material cannot be found in material directories. Using transient material.\n")
self.add_transient_material(self.material)
index = self.form.cb_materials.findData(material_name)
else:
if not self.material:
index = self.form.cb_materials.findText(material_name)
else:
FreeCAD.Console.PrintMessage("None material was previously used. Reload values.\n")
self.add_transient_material(self.material)
index = self.form.cb_materials.findData(material_name)
self.choose_material(index)
else:
index = self.form.cb_materials.findData(previous_mat_path)
self.choose_material(index)
self.has_equal_references_shape_types()
self.rebuild_list_References()
def accept(self):
self.remove_active_sel_server()
if self.has_equal_references_shape_types():
self.obj.Material = self.material
self.obj.References = self.references
doc = FreeCADGui.getDocument(self.obj.Document)
doc.resetEdit()
doc.Document.recompute()
def reject(self):
self.remove_active_sel_server()
doc = FreeCADGui.getDocument(self.obj.Document)
doc.resetEdit()
def remove_active_sel_server(self):
if self.sel_server:
FreeCADGui.Selection.removeObserver(self.sel_server)
def get_references(self):
for ref in self.tuplereferences:
for elem in ref[1]:
self.references.append((ref[0], elem))
def has_equal_references_shape_types(self):
if not self.references:
self.references_shape_type = None
for ref in self.references:
if ref[1]:
r = ref[0].Shape.getElement(ref[1])
else:
r = ref[0].Shape
# print(' ReferenceShape : ', r.ShapeType, ', ', ref[0].Name, ', ', ref[0].Label, ' --> ', ref[1])
if self.references_shape_type is None:
self.references_shape_type = r.ShapeType
if r.ShapeType != self.references_shape_type:
FreeCAD.Console.PrintError('Different ShapeTypes in Reference List not allowed\n')
return False
return True
def goMatWeb(self):
import webbrowser
webbrowser.open("http://matweb.com")
def ym_changed(self, value):
import Units
# FreeCADs standard unit for stress is kPa
old_ym = Units.Quantity(self.material['YoungsModulus'])
variation = 0.001
if value:
if not (1 - variation < float(old_ym) / value < 1 + variation):
# YoungsModulus has changed
material = self.material
material['YoungsModulus'] = unicode(value) + " kPa"
self.material = material
def density_changed(self, value):
import Units
# FreeCADs standard unit for density is kg/mm^3
old_density = Units.Quantity(self.material['Density'])
variation = 0.001
if value:
if not (1 - variation < float(old_density) / value < 1 + variation):
# density has changed
material = self.material
value_in_kg_per_m3 = value * 1e9
material['Density'] = unicode(value_in_kg_per_m3) + " kg/m^3"
# material['Density'] = unicode(value) + " kg/mm^3"
self.material = material
def pr_changed(self, value):
import Units
old_pr = Units.Quantity(self.material['PoissonRatio'])
variation = 0.001
if value:
if not (1 - variation < float(old_pr) / value < 1 + variation):
# PoissonRatio has changed
material = self.material
material['PoissonRatio'] = unicode(value)
self.material = material
def choose_material(self, index):
if index < 0:
return
mat_file_path = self.form.cb_materials.itemData(index)
self.material = self.materials[mat_file_path]
self.form.cb_materials.setCurrentIndex(index)
self.set_mat_params_in_combo_box(self.material)
gen_mat_desc = ""
if 'Description' in self.material:
gen_mat_desc = self.material['Description']
self.form.l_mat_description.setText(gen_mat_desc)
def get_material_name(self, material):
if 'Name' in self.material:
return self.material['Name']
else:
return 'None'
def get_material_path(self, material):
for a_mat in self.materials:
unmatched_items = set(self.materials[a_mat].items()) ^ set(material.items())
if len(unmatched_items) == 0:
return a_mat
return ""
def set_mat_params_in_combo_box(self, matmap):
if 'YoungsModulus' in matmap:
ym_new_unit = "MPa"
ym = FreeCAD.Units.Quantity(matmap['YoungsModulus'])
ym_with_new_unit = ym.getValueAs(ym_new_unit)
self.form.input_fd_young_modulus.setText("{} {}".format(ym_with_new_unit, ym_new_unit))
if 'PoissonRatio' in matmap:
self.form.spinBox_poisson_ratio.setValue(float(matmap['PoissonRatio']))
if 'Density' in matmap:
density_new_unit = "kg/m^3"
density = FreeCAD.Units.Quantity(matmap['Density'])
density_with_new_unit = density.getValueAs(density_new_unit)
self.form.input_fd_density.setText("{} {}".format(density_with_new_unit, density_new_unit))
def add_transient_material(self, material):
material_name = self.get_material_name(material)
self.form.cb_materials.addItem(QtGui.QIcon(":/icons/help-browser.svg"), material_name, material_name)
self.materials[material_name] = material
def add_mat_dir(self, mat_dir, icon):
import glob
import os
import Material
mat_file_extension = ".FCMat"
ext_len = len(mat_file_extension)
dir_path_list = glob.glob(mat_dir + '/*' + mat_file_extension)
self.pathList = self.pathList + dir_path_list
material_name_list = []
for a_path in dir_path_list:
material_name = os.path.basename(a_path[:-ext_len])
self.materials[a_path] = Material.importFCMat(a_path)
material_name_list.append([material_name, a_path])
material_name_list.sort()
for mat in material_name_list:
self.form.cb_materials.addItem(QtGui.QIcon(icon), mat[0], mat[1])
def import_materials(self):
self.materials = {}
self.pathList = []
self.form.cb_materials.clear()
self.fem_preferences = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Fem")
use_built_in_materials = self.fem_preferences.GetBool("UseBuiltInMaterials", True)
if use_built_in_materials:
system_mat_dir = FreeCAD.getResourceDir() + "/Mod/Material/StandardMaterial"
self.add_mat_dir(system_mat_dir, ":/icons/freecad.svg")
use_mat_from_config_dir = self.fem_preferences.GetBool("UseMaterialsFromConfigDir", True)
if use_mat_from_config_dir:
user_mat_dirname = FreeCAD.getUserAppDataDir() + "Materials"
self.add_mat_dir(user_mat_dirname, ":/icons/preferences-general.svg")
use_mat_from_custom_dir = self.fem_preferences.GetBool("UseMaterialsFromCustomDir", True)
if use_mat_from_custom_dir:
custom_mat_dir = self.fem_preferences.GetString("CustomMaterialsDir", "")
self.add_mat_dir(custom_mat_dir, ":/icons/user.svg")
def references_list_right_clicked(self, QPos):
self.form.contextMenu = QtGui.QMenu()
menu_item = self.form.contextMenu.addAction("Remove Reference")
if not self.references:
menu_item.setDisabled(True)
self.form.connect(menu_item, QtCore.SIGNAL("triggered()"), self.remove_reference)
parentPosition = self.form.list_References.mapToGlobal(QtCore.QPoint(0, 0))
self.form.contextMenu.move(parentPosition + QPos)
self.form.contextMenu.show()
def remove_reference(self):
if not self.references:
return
currentItemName = str(self.form.list_References.currentItem().text())
for ref in self.references:
if ref[1]:
refname_to_compare_listentry = ref[0].Name + ':' + ref[1]
else:
refname_to_compare_listentry = ref[0].Name
if refname_to_compare_listentry == currentItemName:
self.references.remove(ref)
self.rebuild_list_References()
def add_references(self):
'''Called if Button add_reference is triggered'''
# in constraints EditTaskPanel the selection is active as soon as the taskpanel is open
# here the addReference button EditTaskPanel has to be triggered to start selection mode
FreeCADGui.Selection.clearSelection()
# start SelectionObserver and parse the function to add the References to the widget
# TODO add a ToolTip with print_message if the mouse pointer is over addReference button
print_message = "Select Edges and Faces by single click on them or Solids by single click on a Vertex to add them to the list"
import FemSelectionObserver
self.sel_server = FemSelectionObserver.FemSelectionObserver(self.selectionParser, print_message)
def selectionParser(self, selection):
# print('selection: ', selection[0].Shape.ShapeType, ' --> ', selection[0].Name, ' --> ', selection[1])
if hasattr(selection[0], "Shape"):
if selection[1]:
elt = selection[0].Shape.getElement(selection[1])
if elt.ShapeType == "Vertex":
if selection[0].Shape.ShapeType == "Solid":
elt = selection[0].Shape
selection = (selection[0], '')
else:
FreeCAD.Console.PrintMessage("Selected Vertex does not belong to a Solid: " + selection[0].Name + " is a " + selection[0].Shape.ShapeType + " \n")
if elt.ShapeType == 'Edge' or elt.ShapeType == 'Face' or elt.ShapeType == 'Solid':
if not self.references:
self.references_shape_type = elt.ShapeType
if elt.ShapeType == self.references_shape_type:
if selection not in self.references:
self.references.append(selection)
self.rebuild_list_References()
else:
FreeCAD.Console.PrintMessage(selection[0].Name + ' --> ' + selection[1] + ' is in reference list already!\n')
else:
FreeCAD.Console.PrintMessage(elt.ShapeType + ' selected, but reference list has ' + self.references_shape_type + 's already!\n')
def rebuild_list_References(self):
self.form.list_References.clear()
items = []
for ref in self.references:
if ref[1]:
item_name = ref[0].Name + ':' + ref[1]
else:
item_name = ref[0].Name
items.append(item_name)
for listItemName in sorted(items):
self.form.list_References.addItem(listItemName)