120 lines
5.0 KiB
Python
120 lines
5.0 KiB
Python
# -*- coding: utf-8 -*-
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# ***************************************************************************
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# * *
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# * Copyright (c) 2018 sliptonic <shopinthewoods@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 FreeCAD
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import Part
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import Path
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import PathScripts.PathEngraveBase as PathEngraveBase
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import PathScripts.PathLog as PathLog
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import PathScripts.PathOp as PathOp
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import math
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from PySide import QtCore
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if False:
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PathLog.setLevel(PathLog.Level.DEBUG, PathLog.thisModule())
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PathLog.trackModule(PathLog.thisModule())
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else:
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PathLog.setLevel(PathLog.Level.INFO, PathLog.thisModule())
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# Qt tanslation handling
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def translate(context, text, disambig=None):
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return QtCore.QCoreApplication.translate(context, text, disambig)
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class ObjectChamfer(PathEngraveBase.ObjectOp):
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'''Proxy class for Chamfer operation.'''
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def opFeatures(self, obj):
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return PathOp.FeatureTool | PathOp.FeatureHeights | PathOp.FeatureBaseEdges | PathOp.FeatureBaseFaces
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def initOperation(self, obj):
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obj.addProperty("App::PropertyDistance", "Width", "Chamfer", QtCore.QT_TRANSLATE_NOOP("PathChamfer", "The desired width of the chamfer"))
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obj.addProperty("App::PropertyDistance", "ExtraDepth", "Chamfer", QtCore.QT_TRANSLATE_NOOP("PathChamfer", "The additional depth of the tool path"))
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def opExecute(self, obj):
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angle = self.tool.CuttingEdgeAngle
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if 0 == angle:
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angle = 180
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tan = math.tan(math.radians(angle/2))
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toolDepth = 0 if 0 == tan else obj.Width.Value / tan
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extraDepth = obj.ExtraDepth.Value
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depth = toolDepth + extraDepth
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toolOffset = self.tool.FlatRadius
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extraOffset = self.tool.Diameter/2 - obj.Width.Value if 180 == angle else obj.ExtraDepth.Value / tan
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offset = toolOffset + extraOffset
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wires = []
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for base, subs in obj.Base:
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edges = []
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basewires = []
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for f in subs:
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sub = base.Shape.getElement(f)
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if type(sub) == Part.Edge:
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edges.append(sub)
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elif sub.Wires:
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basewires.extend(sub.Wires)
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else:
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basewires.append(Part.Wire(sub.Edges))
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for edgelist in Part.sortEdges(edges):
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basewires.append(Part.Wire(edgelist))
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for w in self.adjustWirePlacement(obj, base, basewires):
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wires.append(self.offsetWire(w, base, offset))
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self.wires = wires
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self.buildpathocc(obj, wires, [depth], True)
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def offsetWire(self, wire, base, offset):
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def removeInsideEdges(edges):
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def isInside(edge):
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for v in edge.Vertexes:
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if base.Shape.isInside(v.Point, offset/2, True):
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return True
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return False
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result = []
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return [e for e in edges if not isInside(e)]
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w = wire.makeOffset2D(offset)
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if wire.isClosed():
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if not base.Shape.isInside(w.Edges[0].Vertexes[0].Point, offset/2, True):
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return w
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return wire.makeOffset2D(-offset)
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edges = removeInsideEdges(w.Edges)
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if edges:
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return Part.Wire(edges)
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w = wire.makeOffset2D(-offset)
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edges = removeInsideEdges(w.Edges)
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return Part.Wire(edges)
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def opSetDefaultValues(self, obj):
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obj.Width = '1 mm'
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obj.ExtraDepth = '0.1 mm'
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def Create(name):
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'''Create(name) ... Creates and returns a Chamfer operation.'''
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obj = FreeCAD.ActiveDocument.addObject("Path::FeaturePython", name)
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proxy = ObjectChamfer(obj)
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return obj
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