232 lines
9.1 KiB
Python
232 lines
9.1 KiB
Python
#***************************************************************************
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#* *
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#* Copyright (c) 2011, 2012 *
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#* Jose Luis Cercos Pita <jlcercos@gmail.com> *
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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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import math
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# FreeCAD modules
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import FreeCAD as App
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import FreeCADGui as Gui
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# Qt library
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from PyQt4 import QtGui,QtCore
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# Module
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import Preview, Plot
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import Instance
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from shipUtils import Paths, Translator
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from surfUtils import Geometry
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from shipHydrostatics import Tools as Hydrostatics
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class TaskPanel:
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def __init__(self):
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self.ui = Paths.modulePath() + "/shipAreasCurve/TaskPanel.ui"
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self.preview = Preview.Preview()
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self.ship = None
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def accept(self):
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if not self.ship:
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return False
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self.save()
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# Plot data
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data = Hydrostatics.Displacement(self.ship,self.form.draft.value(),self.form.trim.value())
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x = self.ship.xSection[:]
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y = data[0]
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disp = data[1]
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xcb = data[2]
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Plot.Plot(x,y,disp,xcb, self.ship)
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self.preview.clean()
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return True
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def reject(self):
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self.preview.clean()
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return True
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def clicked(self, index):
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pass
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def open(self):
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pass
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def needsFullSpace(self):
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return True
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def isAllowedAlterSelection(self):
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return False
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def isAllowedAlterView(self):
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return True
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def isAllowedAlterDocument(self):
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return False
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def helpRequested(self):
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pass
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def setupUi(self):
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mw = self.getMainWindow()
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form = mw.findChild(QtGui.QWidget, "TaskPanel")
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form.draft = form.findChild(QtGui.QDoubleSpinBox, "Draft")
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form.trim = form.findChild(QtGui.QDoubleSpinBox, "Trim")
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form.output = form.findChild(QtGui.QTextEdit, "OutputData")
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form.doc = QtGui.QTextDocument(form.output)
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self.form = form
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# Initial values
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if self.initValues():
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return True
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self.retranslateUi()
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# Connect Signals and Slots
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QtCore.QObject.connect(form.draft, QtCore.SIGNAL("valueChanged(double)"), self.onData)
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QtCore.QObject.connect(form.trim, QtCore.SIGNAL("valueChanged(double)"), self.onData)
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def getMainWindow(self):
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"returns the main window"
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# using QtGui.qApp.activeWindow() isn't very reliable because if another
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# widget than the mainwindow is active (e.g. a dialog) the wrong widget is
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# returned
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toplevel = QtGui.qApp.topLevelWidgets()
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for i in toplevel:
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if i.metaObject().className() == "Gui::MainWindow":
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return i
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raise Exception("No main window found")
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def initValues(self):
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""" Set initial values for fields
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"""
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# Get objects
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selObjs = Geometry.getSelectedObjs()
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if not selObjs:
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msg = Translator.translate("Ship instance must be selected (any object selected)\n")
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App.Console.PrintError(msg)
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return True
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for i in range(0,len(selObjs)):
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obj = selObjs[i]
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# Test if is a ship instance
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props = obj.PropertiesList
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try:
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props.index("IsShip")
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except ValueError:
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continue
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if obj.IsShip:
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# Test if another ship already selected
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if self.ship:
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msg = Translator.translate("More than one ship selected (extra ship will be neglected)\n")
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App.Console.PrintWarning(msg)
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break
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self.ship = obj
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# Test if any valid ship was selected
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if not self.ship:
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msg = Translator.translate("Ship instance must be selected (any valid ship found at selected objects)\n")
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App.Console.PrintError(msg)
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return True
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# Get bounds
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bbox = self.ship.Shape.BoundBox
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self.form.draft.setMaximum(bbox.ZMax)
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self.form.draft.setMinimum(bbox.ZMin)
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self.form.draft.setValue(self.ship.Draft)
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# Try to use saved values
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props = self.ship.PropertiesList
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flag = True
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try:
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props.index("AreaCurveDraft")
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except ValueError:
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flag = False
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if flag:
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self.form.draft.setValue(self.ship.AreaCurveDraft)
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flag = True
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try:
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props.index("AreaCurveTrim")
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except ValueError:
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flag = False
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if flag:
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self.form.trim.setValue(self.ship.AreaCurveTrim)
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# Update GUI
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self.preview.update(self.form.draft.value(), self.form.trim.value(), self.ship)
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self.onUpdate()
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msg = Translator.translate("Ready to work\n")
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App.Console.PrintMessage(msg)
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return False
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def retranslateUi(self):
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""" Set user interface locale strings.
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"""
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self.form.setWindowTitle(Translator.translate("Plot transversal areas curve"))
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self.form.findChild(QtGui.QLabel, "DraftLabel").setText(Translator.translate("Draft"))
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self.form.findChild(QtGui.QLabel, "TrimLabel").setText(Translator.translate("Trim"))
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def onData(self, value):
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""" Method called when input data is changed.
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@param value Changed value.
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"""
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if not self.ship:
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return
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self.onUpdate()
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self.preview.update(self.form.draft.value(), self.form.trim.value(), self.ship)
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def onUpdate(self):
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""" Method called when update data request.
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"""
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if not self.ship:
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return
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# Calculate drafts
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angle = math.radians(self.form.trim.value())
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L = self.ship.Length
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draftAP = self.form.draft.value() + 0.5*L*math.tan(angle)
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if draftAP < 0.0:
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draftAP = 0.0
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draftFP = self.form.draft.value() - 0.5*L*math.tan(angle)
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if draftFP < 0.0:
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draftFP = 0.0
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# Calculate hydrostatics involved
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data = Hydrostatics.Displacement(self.ship,self.form.draft.value(),self.form.trim.value())
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# Prepare the string in html format
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string = 'L = %g [m]<BR>' % (self.ship.Length)
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string = string + 'B = %g [m]<BR>' % (self.ship.Beam)
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string = string + 'T = %g [m]<HR>' % (self.form.draft.value())
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string = string + 'Trim = %g [degrees]<BR>' % (self.form.trim.value())
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string = string + 'T<sub>AP</sub> = %g [m]<BR>' % (draftAP)
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string = string + 'T<sub>FP</sub> = %g [m]<HR>' % (draftFP)
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string = string + Translator.translate('Displacement') + ' = %g [ton]<BR>' % (data[1])
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string = string + 'XCB = %g [m]' % (data[2])
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# Set the document
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self.form.output.setHtml(string)
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def save(self):
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""" Saves data into ship instance.
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"""
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props = self.ship.PropertiesList
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try:
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props.index("AreaCurveDraft")
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except ValueError:
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self.ship.addProperty("App::PropertyFloat","AreaCurveDraft","Ship", str(Translator.translate("Areas curve draft selected [m]")))
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self.ship.AreaCurveDraft = self.form.draft.value()
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try:
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props.index("AreaCurveTrim")
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except ValueError:
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self.ship.addProperty("App::PropertyFloat","AreaCurveTrim","Ship", str(Translator.translate("Areas curve trim selected [m]")))
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self.ship.AreaCurveTrim = self.form.trim.value()
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def createTask():
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panel = TaskPanel()
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Gui.Control.showDialog(panel)
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if panel.setupUi():
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Gui.Control.closeDialog(panel)
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return None
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return panel
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