245 lines
9.4 KiB
Python
245 lines
9.4 KiB
Python
# ***************************************************************************
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# * Copyright (c) 2016 Bernd Hahnebach <bernd@bimstatik.org> *
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# * *
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# * This file is part of the FreeCAD CAx development system. *
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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__ = "FreeCAD FEM mesh gmsh task panel for the document object"
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__author__ = "Bernd Hahnebach"
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__url__ = "https://www.freecadweb.org"
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## @package task_mesh_gmsh
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# \ingroup FEM
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# \brief task panel for mesh gmsh object
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import sys
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import time
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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 FreeCAD
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import FreeCADGui
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import FemGui
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from femobjects import mesh_gmsh
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from femtools.femutils import is_of_type
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class _TaskPanel:
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"""
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The TaskPanel for editing References property of
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MeshGmsh objects and creation of new FEM mesh
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"""
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def __init__(self, obj):
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self.mesh_obj = obj
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self.form = FreeCADGui.PySideUic.loadUi(
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FreeCAD.getHomePath() + "Mod/Fem/Resources/ui/MeshGmsh.ui"
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)
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self.Timer = QtCore.QTimer()
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self.Timer.start(100) # 100 milli seconds
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self.gmsh_runs = False
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self.console_message_gmsh = ""
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QtCore.QObject.connect(
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self.form.if_max,
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QtCore.SIGNAL("valueChanged(Base::Quantity)"),
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self.max_changed
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)
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QtCore.QObject.connect(
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self.form.if_min,
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QtCore.SIGNAL("valueChanged(Base::Quantity)"),
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self.min_changed
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)
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QtCore.QObject.connect(
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self.form.cb_dimension,
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QtCore.SIGNAL("activated(int)"),
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self.choose_dimension
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)
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QtCore.QObject.connect(
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self.Timer,
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QtCore.SIGNAL("timeout()"),
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self.update_timer_text
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)
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self.form.cb_dimension.addItems(
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mesh_gmsh.MeshGmsh.known_element_dimensions
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)
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self.get_mesh_params()
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self.get_active_analysis()
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self.update()
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def getStandardButtons(self):
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button_value = int(
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QtGui.QDialogButtonBox.Ok | QtGui.QDialogButtonBox.Apply | QtGui.QDialogButtonBox.Cancel
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)
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return button_value
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# show a OK, a apply and a Cancel button
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# def reject() is called on Cancel button
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# def clicked(self, button) is needed, to access the apply button
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def accept(self):
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self.set_mesh_params()
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self.mesh_obj.ViewObject.Document.resetEdit()
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self.mesh_obj.Document.recompute()
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return True
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def reject(self):
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self.mesh_obj.ViewObject.Document.resetEdit()
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self.mesh_obj.Document.recompute()
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return True
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def clicked(self, button):
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if button == QtGui.QDialogButtonBox.Apply:
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self.set_mesh_params()
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self.run_gmsh()
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def get_mesh_params(self):
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self.clmax = self.mesh_obj.CharacteristicLengthMax
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self.clmin = self.mesh_obj.CharacteristicLengthMin
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self.dimension = self.mesh_obj.ElementDimension
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def set_mesh_params(self):
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self.mesh_obj.CharacteristicLengthMax = self.clmax
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self.mesh_obj.CharacteristicLengthMin = self.clmin
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self.mesh_obj.ElementDimension = self.dimension
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def update(self):
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"fills the widgets"
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self.form.if_max.setText(self.clmax.UserString)
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self.form.if_min.setText(self.clmin.UserString)
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index_dimension = self.form.cb_dimension.findText(self.dimension)
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self.form.cb_dimension.setCurrentIndex(index_dimension)
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def console_log(self, message="", color="#000000"):
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if (not isinstance(message, bytes)) and (sys.version_info.major < 3):
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message = message.encode("utf-8", "replace")
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self.console_message_gmsh = self.console_message_gmsh + (
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'<font color="#0000FF">{0:4.1f}:</font> <font color="{1}">{2}</font><br>'
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.format(time.time() - self.Start, color, message)
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)
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self.form.te_output.setText(self.console_message_gmsh)
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self.form.te_output.moveCursor(QtGui.QTextCursor.End)
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def update_timer_text(self):
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# FreeCAD.Console.PrintMessage("timer1\n")
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if self.gmsh_runs:
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FreeCAD.Console.PrintMessage("timer2\n")
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# FreeCAD.Console.PrintMessage("Time: {0:4.1f}: \n".format(time.time() - self.Start))
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self.form.l_time.setText("Time: {0:4.1f}: ".format(time.time() - self.Start))
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def max_changed(self, base_quantity_value):
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self.clmax = base_quantity_value
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def min_changed(self, base_quantity_value):
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self.clmin = base_quantity_value
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def choose_dimension(self, index):
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if index < 0:
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return
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self.form.cb_dimension.setCurrentIndex(index)
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self.dimension = str(self.form.cb_dimension.itemText(index)) # form returns unicode
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def run_gmsh(self):
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QApplication.setOverrideCursor(Qt.WaitCursor)
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part = self.mesh_obj.Part
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if (
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self.mesh_obj.MeshRegionList and part.Shape.ShapeType == "Compound"
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and (
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is_of_type(part, "FeatureBooleanFragments")
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or is_of_type(part, "FeatureSlice")
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or is_of_type(part, "FeatureXOR")
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)
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):
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error_message = (
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"The shape to mesh is a boolean split tools Compound "
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"and the mesh has mesh region list. "
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"Gmsh could return unexpected meshes in such circumstances. "
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"It is strongly recommended to extract the shape "
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"to mesh from the Compound and use this one."
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)
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qtbox_title = (
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"Shape to mesh is a BooleanFragmentsCompound "
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"and mesh regions are defined"
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)
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QtGui.QMessageBox.critical(
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None,
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qtbox_title,
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error_message
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)
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self.Start = time.time()
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self.form.l_time.setText("Time: {0:4.1f}: ".format(time.time() - self.Start))
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self.console_message_gmsh = ""
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self.gmsh_runs = True
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self.console_log("We are going to start ...")
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self.get_active_analysis()
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from femmesh import gmshtools
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gmsh_mesh = gmshtools.GmshTools(self.mesh_obj, self.analysis)
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self.console_log("Start Gmsh ...")
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error = ""
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try:
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error = gmsh_mesh.create_mesh()
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except Exception:
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import sys
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FreeCAD.Console.PrintMessage(
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"Unexpected error when creating mesh: {}\n"
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.format(sys.exc_info()[0])
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)
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error = sys.exc_info()[0].strip()
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if error:
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FreeCAD.Console.PrintMessage("Gmsh had warnings ...\n")
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FreeCAD.Console.PrintMessage("{}\n".format(error))
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self.console_log("Gmsh had warnings ...")
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self.console_log(error, "#FF0000")
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else:
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FreeCAD.Console.PrintMessage("Clean run of Gmsh\n")
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self.console_log("Clean run of Gmsh")
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self.console_log("Gmsh done!")
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self.form.l_time.setText("Time: {0:4.1f}: ".format(time.time() - self.Start))
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self.Timer.stop()
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self.update()
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QApplication.restoreOverrideCursor()
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def get_active_analysis(self):
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analysis = FemGui.getActiveAnalysis()
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if not analysis:
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FreeCAD.Console.PrintLog("No active analysis, means no group meshing.\n")
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self.analysis = None # no group meshing
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else:
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for m in analysis.Group:
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if m.Name == self.mesh_obj.Name:
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FreeCAD.Console.PrintMessage(
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"Active analysis found: {}\n"
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.format(analysis.Name)
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)
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self.analysis = analysis # group meshing
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break
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else:
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FreeCAD.Console.PrintLog(
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"Mesh is not member of active analysis, means no group meshing.\n"
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)
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self.analysis = None # no group meshing
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return
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