168 lines
7.7 KiB
Python
168 lines
7.7 KiB
Python
# -*- coding: utf-8 -*-
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# ***************************************************************************
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# * *
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# * Copyright (c) 2017 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 PathScripts.PathGeom as PathGeom
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import PathScripts.PathLog as PathLog
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import PathScripts.PathOp as PathOp
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import PathScripts.PathPocketBase as PathPocketBase
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import PathScripts.PathUtils as PathUtils
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import TechDraw
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import sys
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from PySide import QtCore
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__title__ = "Path Pocket Shape Operation"
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__author__ = "sliptonic (Brad Collette)"
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__url__ = "http://www.freecadweb.org"
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__doc__ = "Class and implementation of shape based Pocket operation."
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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 ObjectPocket(PathPocketBase.ObjectPocket):
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'''Proxy object for Pocket operation.'''
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def initPocketOp(self, obj):
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'''initPocketOp(obj) ... setup receiver'''
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obj.addProperty("App::PropertyBool", "UseOutline", "Pocket", QtCore.QT_TRANSLATE_NOOP("App::Property", "Uses the outline of the base geometry."))
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obj.UseOutline = False
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def opOnDocumentRestored(self, obj):
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'''opOnDocumentRestored(obj) ... adds the UseOutline property if it doesn't exist.'''
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if not hasattr(obj, 'UseOutline'):
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self.initPocketOp(obj)
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def pocketInvertExtraOffset(self):
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return False
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def areaOpShapes(self, obj):
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'''areaOpShapes(obj) ... return shapes representing the solids to be removed.'''
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PathLog.track()
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if obj.Base:
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PathLog.debug("base items exist. Processing...")
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self.removalshapes = []
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self.horiz = []
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vertical = []
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for o in obj.Base:
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PathLog.debug("Base item: {}".format(o))
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base = o[0]
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for sub in o[1]:
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if "Face" in sub:
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face = base.Shape.getElement(sub)
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if type(face.Surface) == Part.Plane and PathGeom.isVertical(face.Surface.Axis):
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# it's a flat horizontal face
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self.horiz.append(face)
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elif type(face.Surface) == Part.Cylinder and PathGeom.isVertical(face.Surface.Axis):
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# vertical cylinder wall
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if any(e.isClosed() for e in face.Edges):
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# complete cylinder
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circle = Part.makeCircle(face.Surface.Radius, face.Surface.Center)
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disk = Part.Face(Part.Wire(circle))
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self.horiz.append(disk)
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else:
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# partial cylinder wall
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vertical.append(face)
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elif type(face.Surface) == Part.Plane and PathGeom.isHorizontal(face.Surface.Axis):
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vertical.append(face)
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else:
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PathLog.error(translate('PathPocket', "Pocket does not support shape %s.%s") % (base.Label, sub))
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self.vertical = PathGeom.combineConnectedShapes(vertical)
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self.vWires = [TechDraw.findShapeOutline(shape, 1, FreeCAD.Vector(0, 0, 1)) for shape in self.vertical]
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for wire in self.vWires:
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w = PathGeom.removeDuplicateEdges(wire)
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face = Part.Face(w)
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face.tessellate(0.1)
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if PathGeom.isRoughly(face.Area, 0):
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PathLog.error(translate('PathPocket', 'Vertical faces do not form a loop - ignoring'))
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else:
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self.horiz.append(face)
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# move all horizontal faces to FinalDepth
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for f in self.horiz:
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f.translate(FreeCAD.Vector(0, 0, obj.FinalDepth.Value - f.BoundBox.ZMin))
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# check all faces and see if they are touching/overlapping and combine those into a compound
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self.horizontal = []
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for shape in PathGeom.combineConnectedShapes(self.horiz):
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shape.sewShape()
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shape.tessellate(0.1)
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if obj.UseOutline:
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wire = TechDraw.findShapeOutline(shape, 1, FreeCAD.Vector(0, 0, 1))
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wire.translate(FreeCAD.Vector(0, 0, obj.FinalDepth.Value - wire.BoundBox.ZMin))
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self.horizontal.append(Part.Face(wire))
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else:
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self.horizontal.append(shape)
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# extrude all faces up to StartDepth and those are the removal shapes
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extent = FreeCAD.Vector(0, 0, obj.StartDepth.Value - obj.FinalDepth.Value)
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self.removalshapes = [(face.extrude(extent), False) for face in self.horizontal]
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else: # process the job base object as a whole
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PathLog.debug("processing the whole job base object")
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self.outline = Part.Face(TechDraw.findShapeOutline(self.baseobject.Shape, 1, FreeCAD.Vector(0, 0, 1)))
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stockBB = self.stock.Shape.BoundBox
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self.outline.translate(FreeCAD.Vector(0, 0, stockBB.ZMin - 1))
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self.body = self.outline.extrude(FreeCAD.Vector(0, 0, stockBB.ZLength + 2))
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self.removalshapes = [(self.stock.Shape.cut(self.body), False)]
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for (shape,hole) in self.removalshapes:
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shape.tessellate(0.1)
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if self.removalshapes:
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obj.removalshape = self.removalshapes[0][0]
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return self.removalshapes
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def areaOpSetDefaultValues(self, obj, job):
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'''areaOpSetDefaultValues(obj, job) ... set default values'''
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obj.StepOver = 100
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obj.ZigZagAngle = 45
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if job and job.Stock:
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bb = job.Stock.Shape.BoundBox
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obj.OpFinalDepth = bb.ZMin
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obj.OpStartDepth = bb.ZMax
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def SetupProperties():
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return PathPocketBase.SetupProperties() + [ 'UseOutline' ]
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def Create(name, obj = None):
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'''Create(name) ... Creates and returns a Pocket operation.'''
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if obj is None:
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obj = FreeCAD.ActiveDocument.addObject("Path::FeaturePython", name)
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proxy = ObjectPocket(obj, name)
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return obj
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