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# * Copyright (c) 2025 Stefan Tröger <stefantroeger@gmx.net> *
# * *
# * This file is part of the FreeCAD CAx development system. *
# * *
# * 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 FEM postprocessing ldata view and extraction widget"
__author__ = "Stefan Tröger"
__url__ = "https://www.freecad.org"
## @package data_extraction
# \ingroup FEM
# \brief A widget for data extraction. Used in the PostObject task panel.
from . import vtk_table_view
from PySide import QtCore, QtGui
from vtkmodules.vtkCommonCore import vtkVersion
from vtkmodules.vtkCommonDataModel import vtkTable
from vtkmodules.vtkFiltersGeneral import vtkSplitColumnComponents
from Fem import vtkVersionCheck
if vtkVersionCheck(
vtkVersion.GetVTKMajorVersion(), vtkVersion.GetVTKMinorVersion()
) >= vtkVersionCheck(9, 3):
from vtkmodules.vtkFiltersCore import vtkAttributeDataToTableFilter
else:
from vtkmodules.vtkInfovisCore import vtkDataObjectToTable
import FreeCAD
import FreeCADGui
import femobjects.base_fempostextractors as extr
from femtaskpanels.base_fempostpanel import _BasePostTaskPanel
from . import extract_link_view
ExtractLinkView = extract_link_view.ExtractLinkView
class DataExtraction(_BasePostTaskPanel):
# The class is not a widget itself, but provides a widget. It implements
# all required callbacks for the widget and the task dialog.
# Note: This object is created and used from c++! See PostTaskExtraction
def __init__(self, vobj):
super().__init__(vobj.Object)
self.ViewObject = vobj
self.Object = vobj.Object
self.widget = FreeCADGui.PySideUic.loadUi(
FreeCAD.getHomePath() + "Mod/Fem/Resources/ui/TaskPostExtraction.ui"
)
# connect all signals as required
self.widget.Data.clicked.connect(self.showData)
self.widget.Summary.clicked.connect(self.showSummary)
# setup the data models
self.data_model = vtk_table_view.VtkTableModel()
self.summary_model = vtk_table_view.VtkTableSummaryModel()
# generate the data
self.onPostDataChanged(self.Object)
# setup the extraction widget
self._extraction_view = ExtractLinkView(self.Object, True, self)
self.widget.layout().addSpacing(self.widget.Data.size().height() / 3)
self.widget.layout().addWidget(self._extraction_view)
self._extraction_view.repopulate()
@QtCore.Slot()
def showData(self):
dialog = QtGui.QDialog(self.widget)
dialog.setWindowTitle(f"Data of {self.Object.Label}")
widget = vtk_table_view.VtkTableView(self.data_model)
layout = QtGui.QVBoxLayout()
layout.addWidget(widget)
layout.setContentsMargins(0, 0, 0, 0)
dialog.setLayout(layout)
dialog.resize(1500, 900)
dialog.show()
@QtCore.Slot()
def showSummary(self):
dialog = QtGui.QDialog(self.widget)
dialog.setWindowTitle(f"Data Summary of {self.Object.Label}")
widget = vtk_table_view.VtkTableView(self.summary_model)
layout = QtGui.QVBoxLayout()
layout.addWidget(widget)
layout.setContentsMargins(0, 0, 0, 0)
dialog.setLayout(layout)
dialog.resize(600, 900)
dialog.show()
def isGuiTaskOnly(self):
# If all panels return true it omits the Apply button in the dialog
return True
def onPostDataChanged(self, obj):
algo = obj.getOutputAlgorithm()
if not algo:
self.data_model.setTable(vtkTable())
if vtkVersionCheck(
vtkVersion.GetVTKMajorVersion(), vtkVersion.GetVTKMinorVersion()
) >= vtkVersionCheck(9, 3):
filter = vtkAttributeDataToTableFilter()
else:
filter = vtkDataObjectToTable()
filter.SetFieldType(vtkDataObjectToTable.POINT_DATA)
filter.SetInputConnection(0, algo.GetOutputPort(0))
filter.Update()
table = filter.GetOutputDataObject(0)
# add the points
points = algo.GetOutputDataObject(0).GetPoints().GetData()
table.AddColumn(points)
# split the components
splitter = vtkSplitColumnComponents()
splitter.SetNamingModeToNamesWithParens()
splitter.SetInputData(0, table)
splitter.Update()
table = splitter.GetOutputDataObject(0)
self.data_model.setTable(table)
self.summary_model.setTable(table)
def apply(self):
pass
def initiallyCollapsed(self):
# if we do not have any extractions to show we hide initially to remove clutter
for obj in self.Object.InList:
if extr.is_extractor_object(obj):
return False
return True
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