352 lines
16 KiB
Python
352 lines
16 KiB
Python
# ***************************************************************************
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# * *
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# * Copyright (c) 2016 Bernd Hahnebach <bernd@bimstatik.org> *
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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 ViewProvider for the document object"
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__author__ = "Bernd Hahnebach"
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__url__ = "http://www.freecadweb.org"
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## @package ViewProviderFemMeshGmsh
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# \ingroup FEM
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# \brief FreeCAD FEM _ViewProviderFemMeshGmsh
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import sys
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import FreeCAD
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import FreeCADGui
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import FemGui
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# for the panel
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from femobjects import _FemMeshGmsh
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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 time
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class _ViewProviderFemMeshGmsh:
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"A View Provider for the FemMeshGmsh object"
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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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return ":/icons/fem-femmesh-from-shape.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 setEdit(self, vobj, mode):
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# hide all meshes
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for o in FreeCAD.ActiveDocument.Objects:
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if o.isDerivedFrom("Fem::FemMeshObject"):
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o.ViewObject.hide()
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# show the mesh we like to edit
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self.ViewObject.show()
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# show task panel
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taskd = _TaskPanelFemMeshGmsh(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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def unsetEdit(self, vobj, mode):
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FreeCADGui.Control.closeDialog()
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self.ViewObject.hide() # hide the mesh after edit is finished
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return True
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def doubleClicked(self, vobj):
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# Group meshing is only active on active analysis, we should make sure the analysis the mesh belongs too is active
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gui_doc = FreeCADGui.getDocument(vobj.Object.Document)
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if not gui_doc.getInEdit():
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# may be go the other way around and just activate the analysis the user has doubleClicked on ?!
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# not a fast one, we need to iterate over all member of all analysis to know to which analysis the object belongs too!!!
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# first check if there is an analysis in the active document
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found_an_analysis = False
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for o in gui_doc.Document.Objects:
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if o.isDerivedFrom('Fem::FemAnalysisPython'):
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found_an_analysis = True
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break
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if found_an_analysis:
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if FemGui.getActiveAnalysis() is not None:
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if FemGui.getActiveAnalysis().Document is FreeCAD.ActiveDocument:
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if self.Object in FemGui.getActiveAnalysis().Group:
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if not gui_doc.getInEdit():
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gui_doc.setEdit(vobj.Object.Name)
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else:
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FreeCAD.Console.PrintError('Activate the analysis this Gmsh FEM mesh object belongs too!\n')
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else:
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print('Gmsh FEM mesh object does not belong to the active analysis.')
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found_mesh_analysis = False
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for o in gui_doc.Document.Objects:
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if o.isDerivedFrom('Fem::FemAnalysisPython'):
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for m in o.Group:
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if m == self.Object:
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found_mesh_analysis = True
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FemGui.setActiveAnalysis(o)
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print('The analysis the Gmsh FEM mesh object belongs too was found and activated: ' + o.Name)
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gui_doc.setEdit(vobj.Object.Name)
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break
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if not found_mesh_analysis:
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print('Gmsh FEM mesh object does not belong to an analysis. Analysis group meshing will be deactivated.')
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gui_doc.setEdit(vobj.Object.Name)
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else:
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FreeCAD.Console.PrintError('Active analysis is not in active document.')
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else:
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print('No active analysis in active document, we are going to have a look if the Gmsh FEM mesh object belongs to a non active analysis.')
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found_mesh_analysis = False
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for o in gui_doc.Document.Objects:
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if o.isDerivedFrom('Fem::FemAnalysisPython'):
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for m in o.Group:
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if m == self.Object:
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found_mesh_analysis = True
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FemGui.setActiveAnalysis(o)
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print('The analysis the Gmsh FEM mesh object belongs to was found and activated: ' + o.Name)
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gui_doc.setEdit(vobj.Object.Name)
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break
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if not found_mesh_analysis:
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print('Gmsh FEM mesh object does not belong to an analysis. Analysis group meshing will be deactivated.')
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gui_doc.setEdit(vobj.Object.Name)
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else:
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print('No analysis in the active document.')
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gui_doc.setEdit(vobj.Object.Name)
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else:
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from PySide.QtGui import QMessageBox
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message = 'Active Task Dialog found! Please close this one before opening a new one!'
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QMessageBox.critical(None, "Error in tree view", message)
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FreeCAD.Console.PrintError(message + '\n')
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return True
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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.MeshRegionList + self.Object.MeshGroupList + self.Object.MeshBoundaryLayerList)
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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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def canDragObjects(self):
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return True
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def canDropObjects(self):
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return True
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def canDragObject(self, dragged_object):
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if hasattr(dragged_object, "Proxy") and dragged_object.Proxy.Type == "Fem::FemMeshBoundaryLayer":
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return True
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elif hasattr(dragged_object, "Proxy") and dragged_object.Proxy.Type == "Fem::FemMeshGroup":
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return True
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elif hasattr(dragged_object, "Proxy") and dragged_object.Proxy.Type == "Fem::FemMeshRegion":
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return True
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else:
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return False
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def canDropObject(self, incoming_object):
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return True
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def dragObject(self, selfvp, dragged_object):
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if hasattr(dragged_object, "Proxy") and dragged_object.Proxy.Type == "Fem::FemMeshBoundaryLayer":
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objs = self.Object.MeshBoundaryLayerList
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objs.remove(dragged_object)
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self.Object.MeshBoundaryLayerList = objs
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elif hasattr(dragged_object, "Proxy") and dragged_object.Proxy.Type == "Fem::FemMeshGroup":
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objs = self.Object.MeshGroupList
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objs.remove(dragged_object)
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self.Object.MeshGroupList = objs
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elif hasattr(dragged_object, "Proxy") and dragged_object.Proxy.Type == "Fem::FemMeshRegion":
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objs = self.Object.MeshRegionList
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objs.remove(dragged_object)
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self.Object.MeshRegionList = objs
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def dropObject(self, selfvp, incoming_object):
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if hasattr(incoming_object, "Proxy") and incoming_object.Proxy.Type == "Fem::FemMeshBoundaryLayer":
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objs = self.Object.MeshBoundaryLayerList
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objs.append(incoming_object)
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self.Object.MeshBoundaryLayerList = objs
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elif hasattr(incoming_object, "Proxy") and incoming_object.Proxy.Type == "Fem::FemMeshGroup":
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objs = self.Object.MeshGroupList
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objs.append(incoming_object)
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self.Object.MeshGroupList = objs
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elif hasattr(incoming_object, "Proxy") and incoming_object.Proxy.Type == "Fem::FemMeshRegion":
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objs = self.Object.MeshRegionList
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objs.append(incoming_object)
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self.Object.MeshRegionList = objs
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FreeCAD.ActiveDocument.recompute()
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class _TaskPanelFemMeshGmsh:
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'''The TaskPanel for editing References property of FemMeshGmsh objects and creation of new FEM mesh'''
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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(FreeCAD.getHomePath() + "Mod/Fem/Resources/ui/MeshGmsh.ui")
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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(self.form.if_max, QtCore.SIGNAL("valueChanged(Base::Quantity)"), self.max_changed)
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QtCore.QObject.connect(self.form.if_min, QtCore.SIGNAL("valueChanged(Base::Quantity)"), self.min_changed)
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QtCore.QObject.connect(self.form.cb_dimension, QtCore.SIGNAL("activated(int)"), self.choose_dimension)
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QtCore.QObject.connect(self.Timer, QtCore.SIGNAL("timeout()"), self.update_timer_text)
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self.form.cb_dimension.addItems(_FemMeshGmsh._FemMeshGmsh.known_element_dimensions)
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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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return int(QtGui.QDialogButtonBox.Ok | QtGui.QDialogButtonBox.Apply | QtGui.QDialogButtonBox.Cancel)
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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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FreeCADGui.ActiveDocument.resetEdit()
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FreeCAD.ActiveDocument.recompute()
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return True
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def reject(self):
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FreeCADGui.ActiveDocument.resetEdit()
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FreeCAD.ActiveDocument.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 + '<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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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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# print('timer1')
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if self.gmsh_runs:
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print('timer2')
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# print('Time: {0:4.1f}: '.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.obj.Part
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if self.mesh_obj.MeshRegionList:
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if part.Shape.ShapeType == "Compound" and hasattr(part, "Proxy"): # other part obj might not have a Proxy, thus an exception would be raised
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if (part.Proxy.Type == "FeatureBooleanFragments" or part.Proxy.Type == "FeatureSlice" or part.Proxy.Type == "FeatureXOR"):
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error_message = (
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'The mesh to shape is a boolean split tools Compound 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 to mesh from the Compound and use this one.'
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)
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QtGui.QMessageBox.critical(None, "Shape to mesh is a BooleanFragmentsCompound and mesh regions are defined", error_message)
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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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import femmesh.gmshtools as gmshtools
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gmsh_mesh = gmshtools.GmshTools(self.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:
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import sys
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print("Unexpected error when creating mesh: ", sys.exc_info()[0])
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if error:
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print(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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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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import FemGui
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self.analysis = FemGui.getActiveAnalysis()
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if self.analysis:
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for m in FemGui.getActiveAnalysis().Group:
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if m.Name == self.mesh_obj.Name:
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print('Active analysis found: ' + self.analysis.Name)
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return
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else:
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# print('Mesh is not member of active analysis, means no group meshing')
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self.analysis = None # no group meshing
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else:
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# print('No active analysis, means no group meshing')
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self.analysis = None # no group meshing
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