579 lines
20 KiB
Python
579 lines
20 KiB
Python
# ***************************************************************************
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# * Copyright (c) 2025 Stefan Tröger <stefantroeger@gmx.net> *
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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 postprocessing line plot ViewProvider for the document object"
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__author__ = "Stefan Tröger"
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__url__ = "https://www.freecad.org"
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## @package view_post_lineplot
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# \ingroup FEM
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# \brief view provider for post line plot object
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import FreeCAD
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import FreeCADGui
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import Plot
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import FemGui
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from PySide import QtGui, QtCore
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import io
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import numpy as np
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import matplotlib as mpl
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from vtkmodules.numpy_interface.dataset_adapter import VTKArray
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from . import view_base_fempostextractors
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from . import view_base_fempostvisualization
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from femtaskpanels import task_post_histogram
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_GuiPropHelper = view_base_fempostvisualization._GuiPropHelper
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class EditViewWidget(QtGui.QWidget):
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def __init__(self, obj, post_dialog):
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super().__init__()
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self._object = obj
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self._post_dialog = post_dialog
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# load the ui and set it up
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self.widget = FreeCADGui.PySideUic.loadUi(
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FreeCAD.getHomePath() + "Mod/Fem/Resources/ui/PostHistogramFieldViewEdit.ui"
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)
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layout = QtGui.QVBoxLayout()
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layout.addWidget(self.widget)
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self.setLayout(layout)
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self.__init_widget()
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def __init_widget(self):
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vobj = self._object.ViewObject
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self.widget.Legend.setText(vobj.Legend)
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self._post_dialog._enumPropertyToCombobox(vobj, "Hatch", self.widget.Hatch)
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self._post_dialog._enumPropertyToCombobox(vobj, "LineStyle", self.widget.LineStyle)
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self.widget.LineWidth.setValue(vobj.LineWidth)
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self.widget.HatchDensity.setValue(vobj.HatchDensity)
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# setup the color buttons (don't use FreeCADs color button, as this does not work in popups!)
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self._setup_color_button(self.widget.BarColor, vobj.BarColor, self.barColorChanged)
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self._setup_color_button(self.widget.LineColor, vobj.LineColor, self.lineColorChanged)
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self.widget.Legend.editingFinished.connect(self.legendChanged)
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self.widget.Hatch.activated.connect(self.hatchPatternChanged)
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self.widget.LineStyle.activated.connect(self.lineStyleChanged)
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self.widget.HatchDensity.valueChanged.connect(self.hatchDensityChanged)
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self.widget.LineWidth.valueChanged.connect(self.lineWidthChanged)
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# sometimes wierd sizes occur with spinboxes
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self.widget.HatchDensity.setMaximumHeight(self.widget.Hatch.sizeHint().height())
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self.widget.LineWidth.setMaximumHeight(self.widget.LineStyle.sizeHint().height())
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def _setup_color_button(self, button, fcColor, callback):
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barColor = QtGui.QColor(*[v*255 for v in fcColor])
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icon_size = button.iconSize()
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icon_size.setWidth(icon_size.width()*2)
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button.setIconSize(icon_size)
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pixmap = QtGui.QPixmap(icon_size)
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pixmap.fill(barColor)
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button.setIcon(pixmap)
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action = QtGui.QWidgetAction(button)
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diag = QtGui.QColorDialog(barColor, parent=button)
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diag.accepted.connect(action.trigger)
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diag.rejected.connect(action.trigger)
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diag.colorSelected.connect(callback)
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action.setDefaultWidget(diag)
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button.addAction(action)
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button.setPopupMode(QtGui.QToolButton.InstantPopup)
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@QtCore.Slot(QtGui.QColor)
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def lineColorChanged(self, color):
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pixmap = QtGui.QPixmap(self.widget.LineColor.iconSize())
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pixmap.fill(color)
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self.widget.LineColor.setIcon(pixmap)
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self._object.ViewObject.LineColor = color.getRgb()
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@QtCore.Slot(QtGui.QColor)
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def barColorChanged(self, color):
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pixmap = QtGui.QPixmap(self.widget.BarColor.iconSize())
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pixmap.fill(color)
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self.widget.BarColor.setIcon(pixmap)
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self._object.ViewObject.BarColor = color.getRgb()
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@QtCore.Slot(float)
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def lineWidthChanged(self, value):
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self._object.ViewObject.LineWidth = value
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@QtCore.Slot(float)
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def hatchDensityChanged(self, value):
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self._object.ViewObject.HatchDensity = value
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@QtCore.Slot(int)
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def hatchPatternChanged(self, index):
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self._object.ViewObject.Hatch = index
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@QtCore.Slot(int)
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def lineStyleChanged(self, index):
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self._object.ViewObject.LineStyle = index
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@QtCore.Slot()
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def legendChanged(self):
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self._object.ViewObject.Legend = self.widget.Legend.text()
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class EditFieldAppWidget(QtGui.QWidget):
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def __init__(self, obj, post_dialog):
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super().__init__()
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self._object = obj
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self._post_dialog = post_dialog
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# load the ui and set it up
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self.widget = FreeCADGui.PySideUic.loadUi(
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FreeCAD.getHomePath() + "Mod/Fem/Resources/ui/PostHistogramFieldAppEdit.ui"
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)
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layout = QtGui.QVBoxLayout()
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layout.addWidget(self.widget)
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self.setLayout(layout)
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self.__init_widget()
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def __init_widget(self):
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# set the other properties
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self._post_dialog._enumPropertyToCombobox(self._object, "XField", self.widget.Field)
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self._post_dialog._enumPropertyToCombobox(self._object, "XComponent", self.widget.Component)
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self.widget.Extract.setChecked(self._object.ExtractFrames)
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self.widget.Field.activated.connect(self.fieldChanged)
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self.widget.Component.activated.connect(self.componentChanged)
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self.widget.Extract.toggled.connect(self.extractionChanged)
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@QtCore.Slot(int)
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def fieldChanged(self, index):
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self._object.XField = index
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self._post_dialog._enumPropertyToCombobox(self._object, "XComponent", self.widget.Component)
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self._post_dialog._recompute()
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@QtCore.Slot(int)
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def componentChanged(self, index):
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self._object.XComponent = index
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self._post_dialog._recompute()
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@QtCore.Slot(bool)
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def extractionChanged(self, extract):
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self._object.ExtractFrames = extract
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self._post_dialog._recompute()
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class EditIndexAppWidget(QtGui.QWidget):
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def __init__(self, obj, post_dialog):
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super().__init__()
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self._object = obj
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self._post_dialog = post_dialog
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# load the ui and set it up
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self.widget = FreeCADGui.PySideUic.loadUi(
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FreeCAD.getHomePath() + "Mod/Fem/Resources/ui/PostHistogramIndexAppEdit.ui"
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)
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layout = QtGui.QVBoxLayout()
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layout.addWidget(self.widget)
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self.setLayout(layout)
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self.__init_widget()
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def __init_widget(self):
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# set the other properties
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self.widget.Index.setValue(self._object.Index)
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self._post_dialog._enumPropertyToCombobox(self._object, "XField", self.widget.Field)
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self._post_dialog._enumPropertyToCombobox(self._object, "XComponent", self.widget.Component)
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self.widget.Index.valueChanged.connect(self.indexChanged)
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self.widget.Field.activated.connect(self.fieldChanged)
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self.widget.Component.activated.connect(self.componentChanged)
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# sometimes wierd sizes occur with spinboxes
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self.widget.Index.setMaximumHeight(self.widget.Field.sizeHint().height())
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@QtCore.Slot(int)
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def fieldChanged(self, index):
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self._object.XField = index
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self._post_dialog._enumPropertyToCombobox(self._object, "XComponent", self.widget.Component)
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self._post_dialog._recompute()
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@QtCore.Slot(int)
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def componentChanged(self, index):
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self._object.XComponent = index
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self._post_dialog._recompute()
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@QtCore.Slot(int)
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def indexChanged(self, value):
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self._object.Index = value
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self._post_dialog._recompute()
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class VPPostHistogramFieldData(view_base_fempostextractors.VPPostExtractor):
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"""
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A View Provider for extraction of 1D field data specialy for histograms
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"""
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def __init__(self, vobj):
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super().__init__(vobj)
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vobj.Proxy = self
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def _get_properties(self):
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prop = [
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_GuiPropHelper(
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type="App::PropertyString",
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name="Legend",
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group="HistogramPlot",
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doc="The name used in the plots legend",
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value="",
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),
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_GuiPropHelper(
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type="App::PropertyColor",
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name="BarColor",
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group="HistogramBar",
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doc="The color the data bin area is drawn with",
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value=(0, 85, 255, 255),
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),
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_GuiPropHelper(
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type="App::PropertyEnumeration",
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name="Hatch",
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group="HistogramBar",
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doc="The hatch pattern drawn in the bar",
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value=['None', '/', '\\', '|', '-', '+', 'x', 'o', 'O', '.', '*'],
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),
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_GuiPropHelper(
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type="App::PropertyIntegerConstraint",
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name="HatchDensity",
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group="HistogramBar",
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doc="The line width of the hatch",
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value=(1, 1, 99, 1),
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),
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_GuiPropHelper(
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type="App::PropertyColor",
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name="LineColor",
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group="HistogramLine",
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doc="The color the data bin area is drawn with",
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value=(0, 0, 0, 1), # black
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),
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_GuiPropHelper(
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type="App::PropertyFloatConstraint",
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name="LineWidth",
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group="HistogramLine",
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doc="The width of the bar, between 0 and 1 (1 being without gaps)",
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value=(1, 0, 99, 0.1),
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),
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_GuiPropHelper(
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type="App::PropertyEnumeration",
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name="LineStyle",
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group="HistogramLine",
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doc="The style the line is drawn in",
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value=['None', '-', '--', '-.', ':'],
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),
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]
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return super()._get_properties() + prop
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def attach(self, vobj):
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self.Object = vobj.Object
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self.ViewObject = vobj
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def getIcon(self):
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return ":/icons/FEM_PostField.svg"
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def get_app_edit_widget(self, post_dialog):
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return EditFieldAppWidget(self.Object, post_dialog)
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def get_view_edit_widget(self, post_dialog):
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return EditViewWidget(self.Object, post_dialog)
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def get_preview(self):
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fig = mpl.pyplot.figure(figsize=(0.4,0.2), dpi=500)
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ax = mpl.pyplot.Axes(fig, [0., 0., 2, 1])
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ax.set_axis_off()
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fig.add_axes(ax)
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kwargs = self.get_kw_args()
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patch = mpl.patches.Rectangle(xy=(0,0), width=2, height=1, **kwargs)
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ax.add_patch(patch)
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data = io.BytesIO()
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mpl.pyplot.savefig(data, bbox_inches=0, transparent=True)
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mpl.pyplot.close()
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pixmap = QtGui.QPixmap()
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pixmap.loadFromData(data.getvalue())
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return (pixmap, self.ViewObject.Legend)
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def get_kw_args(self):
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# builds kw args from the properties
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kwargs = {}
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# colors need a workaround, some error occurs with rgba tuple
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kwargs["edgecolor"] = self.ViewObject.LineColor
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kwargs["facecolor"] = self.ViewObject.BarColor
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kwargs["linestyle"] = self.ViewObject.LineStyle
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kwargs["linewidth"] = self.ViewObject.LineWidth
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if self.ViewObject.Hatch != "None":
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kwargs["hatch"] = self.ViewObject.Hatch*self.ViewObject.HatchDensity
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return kwargs
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def get_default_color_property(self):
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return "BarColor"
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class VPPostHistogramIndexOverFrames(VPPostHistogramFieldData):
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"""
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A View Provider for extraction of 1D index over frames data
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"""
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def __init__(self, vobj):
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super().__init__(vobj)
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def getIcon(self):
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return ":/icons/FEM_PostIndex.svg"
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def get_app_edit_widget(self, post_dialog):
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return EditIndexAppWidget(self.Object, post_dialog)
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class VPPostHistogram(view_base_fempostvisualization.VPPostVisualization):
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"""
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A View Provider for Histogram plots
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"""
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def __init__(self, vobj):
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super().__init__(vobj)
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def _get_properties(self):
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prop = [
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_GuiPropHelper(
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type="App::PropertyBool",
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name="Cumulative",
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group="Histogram",
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doc="If be the bars shoud show the cumulative sum left to rigth",
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value=False,
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),
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_GuiPropHelper(
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type="App::PropertyEnumeration",
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name="Type",
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group="Histogram",
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doc="The type of histogram plotted",
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value=["bar","barstacked", "step", "stepfilled"],
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),
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_GuiPropHelper(
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type="App::PropertyFloatConstraint",
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name="BarWidth",
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group="Histogram",
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doc="The width of the bar, between 0 and 1 (1 being without gaps)",
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value=(0.9, 0, 1, 0.05),
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),
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_GuiPropHelper(
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type="App::PropertyFloatConstraint",
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name="HatchLineWidth",
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group="Histogram",
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doc="The line width of all drawn hatch patterns",
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value=(1, 0, 99, 0.1),
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),
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_GuiPropHelper(
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type="App::PropertyInteger",
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name="Bins",
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group="Histogram",
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doc="The number of bins the data is split into",
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value=10,
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),
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_GuiPropHelper(
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type="App::PropertyString",
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name="Title",
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group="Plot",
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doc="The histogram plot title",
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value="",
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),
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_GuiPropHelper(
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type="App::PropertyString",
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name="XLabel",
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group="Plot",
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doc="The label shown for the histogram X axis",
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value="",
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),
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_GuiPropHelper(
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type="App::PropertyString",
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name="YLabel",
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group="Plot",
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doc="The label shown for the histogram Y axis",
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value="",
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),
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_GuiPropHelper(
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type="App::PropertyBool",
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name="Legend",
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group="Plot",
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doc="Determines if the legend is plotted",
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value=True,
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),
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_GuiPropHelper(
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type="App::PropertyEnumeration",
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name="LegendLocation",
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group="Plot",
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doc="Determines if the legend is plotted",
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value=['best','upper right','upper left','lower left','lower right','right',
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'center left','center right','lower center','upper center','center'],
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),
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]
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return prop
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def getIcon(self):
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return ":/icons/FEM_PostHistogram.svg"
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def setEdit(self, vobj, mode):
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# build up the task panel
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taskd = task_post_histogram._TaskPanel(vobj)
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#show it
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FreeCADGui.Control.showDialog(taskd)
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return True
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def show_visualization(self):
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if not hasattr(self, "_plot") or not self._plot:
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main = FreeCADGui.getMainWindow()
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self._plot = Plot.Plot()
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self._plot.setParent(main)
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self._plot.setWindowFlags(QtGui.Qt.Dialog)
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self._plot.resize(main.size().height()/2, main.size().height()/3) # keep it square
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self.update_visualization()
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self._plot.show()
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def get_kw_args(self, obj):
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view = obj.ViewObject
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if not view or not hasattr(view, "Proxy"):
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return {}
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if not hasattr(view.Proxy, "get_kw_args"):
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return {}
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return view.Proxy.get_kw_args()
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def update_visualization(self):
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if not hasattr(self, "_plot") or not self._plot:
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return
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self._plot.axes.clear()
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bins = self.ViewObject.Bins
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# we do not iterate the table, but iterate the children. This makes it possible
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# to attribute the correct styles
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full_args = {}
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full_data = []
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labels = []
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for child in self.Object.Group:
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table = child.Table
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kwargs = self.get_kw_args(child)
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# iterate over the table and plot all
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color_factor = np.linspace(1,0.5,table.GetNumberOfColumns())
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legend_multiframe = table.GetNumberOfColumns() > 1
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for i in range(table.GetNumberOfColumns()):
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# add the kw args, with some slide change over color for multiple frames
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for key in kwargs:
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if not (key in full_args):
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full_args[key] = []
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if "color" in key:
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value = np.array(kwargs[key])*color_factor[i]
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full_args[key].append(mpl.colors.to_hex(value))
|
|
else:
|
|
full_args[key].append(kwargs[key])
|
|
|
|
data = VTKArray(table.GetColumn(i))
|
|
full_data.append(data)
|
|
|
|
# legend labels
|
|
if child.ViewObject.Legend:
|
|
if not legend_multiframe:
|
|
labels.append(child.ViewObject.Legend)
|
|
else:
|
|
postfix = table.GetColumnName(i).split("-")[-1]
|
|
labels.append(child.ViewObject.Legend + " - " + postfix)
|
|
else:
|
|
legend_prefix = ""
|
|
if len(self.Object.Group) > 1:
|
|
legend_prefix = child.Source.Label + ": "
|
|
labels.append(legend_prefix + table.GetColumnName(i))
|
|
|
|
|
|
full_args["hatch_linewidth"] = self.ViewObject.HatchLineWidth
|
|
full_args["rwidth"] = self.ViewObject.BarWidth
|
|
full_args["cumulative"] = self.ViewObject.Cumulative
|
|
full_args["histtype"] = self.ViewObject.Type
|
|
full_args["label"] = labels
|
|
|
|
self._plot.axes.hist(full_data, bins, **full_args)
|
|
|
|
if self.ViewObject.Title:
|
|
self._plot.axes.set_title(self.ViewObject.Title)
|
|
if self.ViewObject.XLabel:
|
|
self._plot.axes.set_xlabel(self.ViewObject.XLabel)
|
|
if self.ViewObject.YLabel:
|
|
self._plot.axes.set_ylabel(self.ViewObject.YLabel)
|
|
|
|
if self.ViewObject.Legend and labels:
|
|
self._plot.axes.legend(loc = self.ViewObject.LegendLocation)
|
|
|
|
self._plot.update()
|
|
|
|
def get_next_default_color(self):
|
|
# we use the next color in order. We do not check (yet) if this
|
|
# color is already taken
|
|
i = len(self.Object.Group)
|
|
cmap = mpl.pyplot.get_cmap("tab10")
|
|
return cmap(i)
|