677 lines
24 KiB
Python
677 lines
24 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 time
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# COIN
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from pivy.coin import *
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from pivy import coin
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# FreeCAD
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import FreeCAD,FreeCADGui
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from FreeCAD import Part, Base, Vector
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# Ship design module
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from shipUtils import Paths, Translator, Math
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class Ship:
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def __init__(self, obj, faces):
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""" Creates a new ship on active document.
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@param faces Ship faces (Part::Shape entities).
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"""
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# Add uniqueness property to identify Ship instances
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obj.addProperty("App::PropertyBool","IsShip","Ship", str(Translator.translate("True if is a valid ship instance"))).IsShip=True
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# Add main dimensions
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obj.addProperty("App::PropertyLength","Length","Ship", str(Translator.translate("Ship length (Lpp) [m]"))).Length=0.0
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obj.addProperty("App::PropertyLength","Beam","Ship", str(Translator.translate("Ship beam (B) [m]"))).Beam=0.0
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obj.addProperty("App::PropertyLength","Draft","Ship", str(Translator.translate("Ship draft (T) [m]"))).Draft=0.0
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# Add shapes
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obj.addProperty("Part::PropertyPartShape","Shape","Ship", str(Translator.translate("Ship surfaces"))).Shape = Part.makeShell(faces)
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obj.Proxy = self
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self.obj = obj
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def onChanged(self, fp, prop):
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''' Print the name of the property that has changed '''
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# FreeCAD.Console.PrintMessage("Change property: " + str(prop) + "\n")
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if prop == "Length" or prop == "Beam" or prop == "Draft":
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fp.Shape = Part.makeShell(obj.Shape.Faces)
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def execute(self, obj):
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''' Print a short message when doing a recomputation, this method is mandatory '''
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# FreeCAD.Console.PrintMessage("Recompute Ship\n")
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obj.Shape = Part.makeShell(obj.Shape.Faces)
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def lineFaceSection(self,line,surface):
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""" Returns the point of section of a line with a face
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@param line Line object, that can be a curve.
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@param surface Surface object (must be a Part::Shape)
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@return Section points array, [] if line don't cut surface
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"""
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# Get initial data
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result = []
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vertexes = line.Vertexes
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nVertex = len(vertexes)
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# Perform the cut
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section = line.cut(surface)
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# Filter all old points
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points = section.Vertexes
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nPoint = len(points)
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if nPoint <= nVertex:
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# Any valid point
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return result
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for i in range(0,nPoint):
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disp = len(result)
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flag = 0
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if not Math.isAprox(points[i].X,vertexes[i-disp].X,0.0001):
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flag = flag+1
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if not Math.isAprox(points[i].Y,vertexes[i-disp].Y,0.0001):
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flag = flag+1
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if not Math.isAprox(points[i].Z,vertexes[i-disp].Z,0.0001):
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flag = flag+1
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if flag > 0:
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result.append(points[i])
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return result
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def discretize(self, nS, nP):
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""" Discretize the surface.
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@param nS Number of sections
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@param nP Number of points per section
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"""
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self.obj.addProperty("App::PropertyInteger","nSections","Ship", str(Translator.translate("Number of sections"))).nSections=nS
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self.obj.addProperty("App::PropertyIntegerList","nPoints","Ship", str(Translator.translate("List of number of points per sections (accumulated histogram)"))).nPoints=[0]
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self.obj.addProperty("App::PropertyFloatList","xSection","Ship", str(Translator.translate("List of sections x coordinate"))).xSection=[]
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self.obj.addProperty("App::PropertyVectorList","mSections","Ship", str(Translator.translate("List of sections points"))).mSections=[]
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nPoints = [0]
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xSection = []
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mSections = []
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# Get bounds
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shape = self.obj.Shape
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bbox = shape.BoundBox
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x0 = bbox.XMin
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x1 = bbox.XMax
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y0 = bbox.YMin
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y1 = bbox.YMax
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z0 = bbox.ZMin
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z1 = bbox.ZMax
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# Create a set of planes to perfom edges sections
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planes = []
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dz = (z1 - z0) / (nP - 1)
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for j in range(0,nP):
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z = z0 + j*dz
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rX = x1 - x0
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rY = max(y1 - y0, abs(y1), abs(y0))
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planes.append(Part.makePlane(4*rX,4*rY,Base.Vector(-2*rX,-2*rY,z),Base.Vector(0,0,1)))
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# Division are performed at x axis
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dx = (x1 - x0) / (nS - 1.0)
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for i in range(0,nS):
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section = []
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x = x0 + i*dx
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xSection.append(x)
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percen = i*100 / (nS-1)
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FreeCAD.Console.PrintMessage('%d%%\n' % (percen));
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# Slice the surface to get curves
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wires = shape.slice(Vector(1.0,0.0,0.0), x)
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if not wires:
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if (i != 0) or (i != nS-1):
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msg = 'Found empty section at x=%g\n' % (x)
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msg = Translator.translate(msg)
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FreeCAD.Console.PrintWarning(msg)
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FreeCAD.Console.PrintWarning('\tThis may happens if a bad defined (or really complex) surface has been provided.\n')
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FreeCAD.Console.PrintWarning('\tPlease, ensure that this section is correct, or fix surfaces and create a new ship.\n')
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nPoints.append(0)
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continue
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# Desarrollate wires into edges list
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edges = []
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for j in range(0,len(wires)):
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wire = wires[j].Edges
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for k in range(0,len(wire)):
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edges.append(wire[k])
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# Slice curves to get points
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points = []
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for k in range(0,nP):
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planePoints = []
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for j in range(0,len(edges)):
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aux = self.lineFaceSection(edges[j], planes[k])
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for l in range(0,len(aux)):
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planePoints.append(Vector(aux[l].X, aux[l].Y, aux[l].Z))
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if not planePoints: # No section found, symmetry plane point will used
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planePoints.append(Vector(x,0,z0 + k*dz))
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# Get Y coordinates
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auxY = []
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for l in range(0,len(planePoints)):
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auxY.append(planePoints[l].y)
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# Sort them
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auxY.sort()
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# And store
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for l in range(0,len(planePoints)):
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points.append(Vector(planePoints[l].x, auxY[l], planePoints[l].z))
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# Store points
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section = points[:]
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nPoints.append(len(section))
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for j in range(0,len(section)):
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mSections.append(section[j])
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# Save data
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for i in range(1,len(nPoints)):
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nPoints[i] = nPoints[i] + nPoints[i-1]
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self.obj.nPoints = nPoints[:]
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self.obj.xSection = xSection[:]
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self.obj.mSections = mSections[:]
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msg = '%d Discretization points performed\n' % (len(mSections))
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msg = Translator.translate(msg)
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FreeCAD.Console.PrintMessage(msg)
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class ViewProviderShip:
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def __init__(self, obj):
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"Set this object to the proxy object of the actual view provider"
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obj.Proxy = self
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def attach(self, obj):
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''' Setup the scene sub-graph of the view provider, this method is mandatory '''
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return
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def updateData(self, fp, prop):
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''' If a property of the handled feature has changed we have the chance to handle this here '''
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return
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def getDisplayModes(self,obj):
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''' Return a list of display modes. '''
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modes=[]
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return modes
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def getDefaultDisplayMode(self):
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''' Return the name of the default display mode. It must be defined in getDisplayModes. '''
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return "Shaded"
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def setDisplayMode(self,mode):
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''' Map the display mode defined in attach with those defined in getDisplayModes.
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Since they have the same names nothing needs to be done. This method is optinal.
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'''
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return mode
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def onChanged(self, vp, prop):
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''' Print the name of the property that has changed '''
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# FreeCAD.Console.PrintMessage("Change property: " + str(prop) + "\n")
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def __getstate__(self):
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''' When saving the document this object gets stored using Python's cPickle module.
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Since we have some un-pickable here -- the Coin stuff -- we must define this method
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to return a tuple of all pickable objects or None.
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'''
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return None
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def __setstate__(self,state):
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''' When restoring the pickled object from document we have the chance to set some
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internals here. Since no data were pickled nothing needs to be done here.
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'''
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return None
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def getIcon(self):
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return """
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/* XPM */
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static char * Ship_xpm[] = {
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"32 32 396 2",
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" c None",
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". c #2C2C2C",
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"+ c #3A3A3A",
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"@ c #585857",
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"# c #161616",
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"$ c #000000",
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"% c #363636",
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"& c #333333",
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"* c #B3B3B3",
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"= c #B4B4B4",
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"- c #949494",
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"; c #565653",
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"> c #141414",
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", c #080807",
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"' c #585858",
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") c #878787",
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"! c #9F9E9F",
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"~ c #9F9F9E",
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"{ c #8F8F90",
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"] c #6B6B6B",
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"^ c #101010",
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"/ c #737373",
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"( c #4C4C4C",
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"_ c #B1B1B7",
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": c #9090C0",
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"< c #A7A7B2",
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"[ c #87878E",
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"} c #4F4F52",
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"| c #191919",
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"1 c #656565",
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"2 c #D1D1D2",
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"3 c #D1D1D1",
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"4 c #CECECE",
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"5 c #CDCCCC",
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"6 c #CCCCCC",
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"7 c #CCCCCB",
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"8 c #CDCECD",
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"9 c #BDBDBD",
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"0 c #424242",
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"a c #373737",
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"b c #0A0A0A",
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"c c #241414",
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"d c #0E0C0C",
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"e c #929393",
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"f c #383738",
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"g c #9B9B9A",
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"h c #A0A0AF",
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"i c #2929E4",
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"j c #2525E5",
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"k c #3F3FD7",
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"l c #5B5BC8",
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"m c #535368",
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"n c #686866",
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"o c #C8C8C8",
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"p c #C8C8C7",
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"q c #C7C6C7",
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"r c #C6C6C6",
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"s c #C5C5C5",
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"t c #C4C5C5",
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"u c #C3C4C3",
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"v c #C3C3C2",
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"w c #BCBCBC",
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"x c #595959",
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"y c #A6A6A6",
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"z c #969696",
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"A c #0B0B0B",
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"B c #0D0707",
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"C c #894646",
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"D c #1C1A1A",
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"E c #525252",
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"F c #6C6D6C",
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"G c #A3A3A2",
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"H c #A3A296",
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"I c #8E8F98",
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"J c #6F6EA5",
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"K c #5354AF",
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"L c #373753",
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"M c #8D8D8B",
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"N c #C5C5C4",
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"O c #C2C2C2",
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"P c #C1C1C1",
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"Q c #C0C0C0",
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"R c #C0BFBF",
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"S c #BFBFBF",
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"T c #BEBEBE",
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"U c #B1B2B2",
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"V c #404040",
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"W c #ABAAAA",
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"X c #797979",
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"Y c #2A1212",
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"Z c #662828",
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"` c #3D403F",
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" . c #B5B5B5",
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".. c #6B6A6B",
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"+. c #4A4A4A",
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"@. c #9A9A9A",
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"#. c #909090",
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"$. c #8B8B8A",
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"%. c #898A86",
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"&. c #84837F",
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"*. c #3D3D3C",
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"=. c #9E9E9E",
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"-. c #BFBFBE",
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";. c #BDBEBD",
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">. c #BBBBBB",
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",. c #BABABA",
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"'. c #B9B9B9",
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"). c #B8B8B8",
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"!. c #999999",
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"~. c #BABAB9",
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"{. c #ABABAB",
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"]. c #292929",
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"^. c #381212",
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"/. c #4C1514",
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"(. c #535656",
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"_. c #717171",
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":. c #919090",
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"<. c #818181",
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"[. c #4E4E4E",
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"}. c #4B4B4B",
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"|. c #B1B1B1",
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"1. c #B8B7B8",
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"2. c #B6B6B6",
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"3. c #B6B5B5",
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"4. c #B4B5B4",
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"5. c #B2B3B2",
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"6. c #5C5D5C",
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"7. c #AFAFAF",
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"8. c #ADACAC",
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"9. c #5B5B5B",
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"0. c #410C0C",
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"a. c #3E0707",
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"b. c #525555",
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"c. c #9C9C9C",
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"d. c #2D2D2D",
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"e. c #757575",
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"f. c #474747",
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"g. c #484848",
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"h. c #9F9F9F",
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"i. c #B3B3B4",
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"j. c #B2B2B2",
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"k. c #B0B0B0",
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"l. c #ADAEAD",
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"m. c #ADADAD",
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"n. c #B0B1B0",
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"o. c #1E1E1E",
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"p. c #ACABAC",
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"q. c #AAA9A9",
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"r. c #A8A8A8",
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"s. c #5D5D5D",
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"t. c #290202",
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"u. c #281010",
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"v. c #272828",
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"w. c #767777",
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"x. c #505050",
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"y. c #1F1F1F",
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"z. c #5E5E5D",
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"A. c #A4A5A5",
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"B. c #B1B2B1",
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"C. c #AEAEAE",
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"D. c #AEADAD",
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"E. c #ABACAC",
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"F. c #AAAAAA",
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"G. c #A9A8A8",
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"H. c #ABABAC",
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"I. c #7B7B7B",
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"J. c #2B2B2B",
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"K. c #A4A4A4",
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"L. c #A6A5A6",
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"M. c #888888",
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"N. c #0E0E0E",
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"O. c #101312",
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"P. c #7E8080",
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"Q. c #5E5E5E",
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"R. c #242424",
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"S. c #555555",
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"T. c #7F7F7F",
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"U. c #A4A3A4",
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"V. c #B3B3B2",
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"W. c #ACACAC",
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"X. c #A9A9A9",
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"Y. c #A8A7A7",
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"Z. c #A7A6A7",
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"`. c #A7A7A7",
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" + c #A8A8A7",
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".+ c #A5A5A5",
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"++ c #A2A2A2",
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"@+ c #222122",
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"#+ c #7E7E7E",
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"$+ c #A3A3A3",
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"%+ c #9B9B9B",
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"&+ c #050505",
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"*+ c #6E6E6E",
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"=+ c #A7A7A6",
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"-+ c #989898",
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";+ c #A5A4A4",
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">+ c #A7A7A8",
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",+ c #A5A6A7",
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"'+ c #979A99",
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")+ c #818383",
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"!+ c #757878",
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"~+ c #757979",
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"{+ c #878A8A",
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"]+ c #A3A5A5",
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"^+ c #828282",
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"/+ c #A0A0A0",
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"(+ c #232323",
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"_+ c #939393",
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":+ c #A5A6A5",
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"<+ c #A2A3A2",
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"[+ c #A2A1A1",
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"}+ c #A1A0A1",
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"|+ c #939292",
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"1+ c #636262",
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"2+ c #554D4D",
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"3+ c #634C4C",
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"4+ c #755555",
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"5+ c #936464",
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"6+ c #9F6868",
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"7+ c #9B6060",
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"8+ c #804A4A",
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"9+ c #5C3737",
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"0+ c #1D1616",
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"a+ c #A1A1A1",
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"b+ c #010101",
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"c+ c #151516",
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"d+ c #707070",
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"e+ c #9D9E9E",
|
|
"f+ c #8C8D8D",
|
|
"g+ c #8B8888",
|
|
"h+ c #726A6A",
|
|
"i+ c #6D5959",
|
|
"j+ c #866261",
|
|
"k+ c #C18B8B",
|
|
"l+ c #D79696",
|
|
"m+ c #D18C8C",
|
|
"n+ c #CB8180",
|
|
"o+ c #C57575",
|
|
"p+ c #BF6B6A",
|
|
"q+ c #BB6161",
|
|
"r+ c #B95958",
|
|
"s+ c #9C4544",
|
|
"t+ c #2E1212",
|
|
"u+ c #6F6C6C",
|
|
"v+ c #A0A1A1",
|
|
"w+ c #575757",
|
|
"x+ c #0C0C0C",
|
|
"y+ c #9C9D9D",
|
|
"z+ c #7A7272",
|
|
"A+ c #876F6F",
|
|
"B+ c #977070",
|
|
"C+ c #C28C8C",
|
|
"D+ c #D59595",
|
|
"E+ c #D08A8A",
|
|
"F+ c #C67D7D",
|
|
"G+ c #C07272",
|
|
"H+ c #BC6969",
|
|
"I+ c #B85F5F",
|
|
"J+ c #B35656",
|
|
"K+ c #B04C4C",
|
|
"L+ c #AB4243",
|
|
"M+ c #A63939",
|
|
"N+ c #591B1B",
|
|
"O+ c #6A2121",
|
|
"P+ c #542323",
|
|
"Q+ c #585A5A",
|
|
"R+ c #191515",
|
|
"S+ c #706262",
|
|
"T+ c #A58080",
|
|
"U+ c #B58383",
|
|
"V+ c #CE8F8F",
|
|
"W+ c #CD8989",
|
|
"X+ c #C17372",
|
|
"Y+ c #B45656",
|
|
"Z+ c #AF4C4C",
|
|
"`+ c #AB4242",
|
|
" @ c #A73A39",
|
|
".@ c #A3302F",
|
|
"+@ c #9F2626",
|
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"@@ c #8E1A1A",
|
|
"#@ c #2C0808",
|
|
"$@ c #91191A",
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"%@ c #2F0200",
|
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"&@ c #90C6FB",
|
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"*@ c #8BBFFB",
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"=@ c #94CBFC",
|
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"-@ c #AFEFFB",
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";@ c #7DABA0",
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">@ c #3C2521",
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",@ c #C88484",
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"'@ c #C57C7D",
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")@ c #C17273",
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"!@ c #B86060",
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"{@ c #A73939",
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"]@ c #A32F2F",
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"^@ c #9B1C1D",
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"/@ c #961313",
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"(@ c #96090A",
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":@ c #4E0202",
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"<@ c #300000",
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"[@ c #3E5378",
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"}@ c #7EABF9",
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|
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"1@ c #96CDFB",
|
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"2@ c #B2F2FA",
|
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"3@ c #C4FFFA",
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"4@ c #2E3FFD",
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"5@ c #3346FD",
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"6@ c #2A3AFD",
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"7@ c #161EFE",
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"8@ c #1B25FD",
|
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"9@ c #1F25B4",
|
|
"0@ c #7C6196",
|
|
"a@ c #AA6075",
|
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"b@ c #AC5763",
|
|
"c@ c #AD5155",
|
|
"d@ c #AD4645",
|
|
"e@ c #A83938",
|
|
"f@ c #A3302E",
|
|
"g@ c #A02624",
|
|
"h@ c #9B1C1B",
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"i@ c #971311",
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"j@ c #930A09",
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"k@ c #900300",
|
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"l@ c #900505",
|
|
"m@ c #660007",
|
|
"n@ c #00000D",
|
|
"o@ c #200112",
|
|
"p@ c #597F88",
|
|
"q@ c #6E97FD",
|
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"r@ c #384CFD",
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"s@ c #394EFD",
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"t@ c #2D3EFD",
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"u@ c #151DFE",
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|
"v@ c #1821FE",
|
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"w@ c #3C52FD",
|
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"x@ c #6388FC",
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"y@ c #9CD6FB",
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"z@ c #D0FFFA",
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"A@ c #AEEEFB",
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"B@ c #749FFF",
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"C@ c #3F5DFF",
|
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"D@ c #4165FF",
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"E@ c #525AE3",
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"F@ c #6153C4",
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"G@ c #672D8D",
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"H@ c #6C1B6A",
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|
"I@ c #722164",
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|
"J@ c #75225E",
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"K@ c #731D57",
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"L@ c #701653",
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"M@ c #690E52",
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"N@ c #5F0050",
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"O@ c #562086",
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"P@ c #11108D",
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|
"Q@ c #2330BE",
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|
"R@ c #344AE1",
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|
"S@ c #4E6BFF",
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"T@ c #4E6BFD",
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"U@ c #597AFC",
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"V@ c #6184FC",
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"W@ c #7099FC",
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"X@ c #8BBEFB",
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"Y@ c #95CCFB",
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"`@ c #1C26FD",
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" # c #121AFE",
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"+# c #81B4FF",
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"-# c #6391FF",
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"># c #6B9AFF",
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",# c #5171ED",
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"]# c #070AFE",
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|
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|
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|
" z@A@B@C@D@E@F@G@H@I@J@K@L@M@N@O@P@Q@R@S@T@U@V@W@X@Y@Z@`@ #",
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|
" .#+#@###$#%#&#*#=#-#;#>#,#'# )#!#~#{#]#^#/#",
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|
|
" ",
|
|
" ",
|
|
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|
|
" "};
|
|
"""
|
|
|
|
def sections(obj):
|
|
""" Returns the discretization points of sections, with the advantage
|
|
that is a list of nSections lists, with the points.
|
|
@param Ship object
|
|
@return Sections points
|
|
"""
|
|
histogram = obj.nPoints[:]
|
|
points = obj.mSections[:]
|
|
sections = []
|
|
for i in range(0, len(histogram) - 1):
|
|
sections.append([])
|
|
for j in range(histogram[i],histogram[i+1]):
|
|
sections[i].append(points[j])
|
|
return sections
|