7fe094ac02
lazy_loader is copied to Ext now, modified external imports to lazy_load add a few more imports to be lazy loaded, think the install path is correct now [TD]"<" symbol embedded in html revert changes to path modules for testing use lazyloader in PathAreaOp.py add back in deferred loading temp change to print error message in tests temp change to print error message in tests add _init__.py to lazy_loader make install in CMakeLists.txt one line
284 lines
12 KiB
Python
284 lines
12 KiB
Python
# -*- coding: utf-8 -*-
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# ***************************************************************************
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# * *
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# * Copyright (c) 2016 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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from __future__ import print_function
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import FreeCAD
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import PathScripts.PathLog as PathLog
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import PathScripts.PathPocketBase as PathPocketBase
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import PathScripts.PathUtils as PathUtils
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from PySide import QtCore
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import numpy
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# lazily loaded modules
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from lazy_loader.lazy_loader import LazyLoader
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Part = LazyLoader('Part', globals(), 'Part')
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__title__ = "Path Mill Face 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 Mill Facing operation."
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__contributors__ = "russ4262 (Russell Johnson)"
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__created__ = "2014"
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__scriptVersion__ = "1d usable"
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__lastModified__ = "2019-07-22 23:49 CST"
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PathLog.setLevel(PathLog.Level.INFO, PathLog.thisModule())
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#PathLog.trackModule(PathLog.thisModule())
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# Qt translation 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 ObjectFace(PathPocketBase.ObjectPocket):
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'''Proxy object for Mill Facing operation.'''
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def initPocketOp(self, obj):
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'''initPocketOp(obj) ... create facing specific properties'''
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obj.addProperty("App::PropertyEnumeration", "BoundaryShape", "Face", QtCore.QT_TRANSLATE_NOOP("App::Property", "Shape to use for calculating Boundary"))
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obj.BoundaryShape = ['Perimeter', 'Boundbox', 'Stock']
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obj.addProperty("App::PropertyBool", "ClearEdges", "Face", QtCore.QT_TRANSLATE_NOOP("App::Property", "Clear edges of surface (Only applicable to BoundBox)"))
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if not hasattr(obj, 'ExcludeRaisedAreas'):
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obj.addProperty("App::PropertyBool", "ExcludeRaisedAreas", "Face", QtCore.QT_TRANSLATE_NOOP("App::Property", "Exclude milling raised areas inside the face."))
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def pocketInvertExtraOffset(self):
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return True
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def areaOpOnChanged(self, obj, prop):
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'''areaOpOnChanged(obj, prop) ... facing specific depths calculation.'''
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PathLog.track(prop)
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if prop == "StepOver" and obj.StepOver == 0:
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obj.StepOver = 1
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# default depths calculation not correct for facing
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if prop == "Base":
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job = PathUtils.findParentJob(obj)
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if job:
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obj.OpStartDepth = job.Stock.Shape.BoundBox.ZMax
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if len(obj.Base) >= 1:
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print('processing')
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sublist = []
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for i in obj.Base:
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o = i[0]
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for s in i[1]:
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sublist.append(o.Shape.getElement(s))
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# If the operation has a geometry identified the Finaldepth
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# is the top of the bboundbox which includes all features.
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# Otherwise, top of part.
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obj.OpFinalDepth = Part.makeCompound(sublist).BoundBox.ZMax
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elif job:
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obj.OpFinalDepth = job.Proxy.modelBoundBox(job).ZMax
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def areaOpShapes(self, obj):
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'''areaOpShapes(obj) ... return top face'''
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# Facing is done either against base objects
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holeShape = None
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if obj.Base:
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PathLog.debug("obj.Base: {}".format(obj.Base))
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faces = []
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holes = []
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holeEnvs = []
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oneBase = [obj.Base[0][0], True]
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sub0 = getattr(obj.Base[0][0].Shape, obj.Base[0][1][0])
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minHeight = sub0.BoundBox.ZMax
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for b in obj.Base:
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for sub in b[1]:
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shape = getattr(b[0].Shape, sub)
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if isinstance(shape, Part.Face):
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faces.append(shape)
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if shape.BoundBox.ZMin < minHeight:
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minHeight = shape.BoundBox.ZMin
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if oneBase[0] is not b[0]:
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oneBase[1] = False
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if numpy.isclose(abs(shape.normalAt(0, 0).z), 1): # horizontal face
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for wire in shape.Wires[1:]:
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if obj.ExcludeRaisedAreas is True:
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ip = self.isPocket(b[0], shape, wire)
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if ip is False:
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holes.append((b[0].Shape, wire))
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else:
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holes.append((b[0].Shape, wire))
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else:
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PathLog.error('The base subobject, "{0}," is not a face. Ignoring "{0}."'.format(sub))
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if obj.ExcludeRaisedAreas is True and len(holes) > 0:
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for shape, wire in holes:
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f = Part.makeFace(wire, 'Part::FaceMakerSimple')
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env = PathUtils.getEnvelope(shape, subshape=f, depthparams=self.depthparams)
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holeEnvs.append(env)
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holeShape = Part.makeCompound(holeEnvs)
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PathLog.debug("Working on a collection of faces {}".format(faces))
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planeshape = Part.makeCompound(faces)
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# If no base object, do planing of top surface of entire model
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else:
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planeshape = Part.makeCompound([base.Shape for base in self.model])
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PathLog.debug("Working on a shape {}".format(obj.Label))
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# Find the correct shape depending on Boundary shape.
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PathLog.debug("Boundary Shape: {}".format(obj.BoundaryShape))
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bb = planeshape.BoundBox
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# Apply offset for clearing edges
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offset = 0;
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if obj.ClearEdges == True:
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offset = self.radius + 0.1
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bb.XMin = bb.XMin - offset
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bb.YMin = bb.YMin - offset
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bb.XMax = bb.XMax + offset
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bb.YMax = bb.YMax + offset
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if obj.BoundaryShape == 'Boundbox':
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bbperim = Part.makeBox(bb.XLength, bb.YLength, 1, FreeCAD.Vector(bb.XMin, bb.YMin, bb.ZMin), FreeCAD.Vector(0, 0, 1))
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env = PathUtils.getEnvelope(partshape=bbperim, depthparams=self.depthparams)
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if obj.ExcludeRaisedAreas is True and oneBase[1] is True:
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includedFaces = self.getAllIncludedFaces(oneBase[0], env, faceZ=minHeight)
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if len(includedFaces) > 0:
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includedShape = Part.makeCompound(includedFaces)
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includedEnv = PathUtils.getEnvelope(oneBase[0].Shape, subshape=includedShape, depthparams=self.depthparams)
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env = env.cut(includedEnv)
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elif obj.BoundaryShape == 'Stock':
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stock = PathUtils.findParentJob(obj).Stock.Shape
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env = stock
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if obj.ExcludeRaisedAreas is True and oneBase[1] is True:
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includedFaces = self.getAllIncludedFaces(oneBase[0], stock, faceZ=minHeight)
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if len(includedFaces) > 0:
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stockEnv = PathUtils.getEnvelope(partshape=stock, depthparams=self.depthparams)
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includedShape = Part.makeCompound(includedFaces)
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includedEnv = PathUtils.getEnvelope(oneBase[0].Shape, subshape=includedShape, depthparams=self.depthparams)
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env = stockEnv.cut(includedEnv)
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else:
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env = PathUtils.getEnvelope(partshape=planeshape, depthparams=self.depthparams)
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if holeShape is not None:
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PathLog.info("Processing holes...")
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holeEnv = PathUtils.getEnvelope(partshape=holeShape, depthparams=self.depthparams)
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newEnv = env.cut(holeEnv)
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return [(newEnv, False)]
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else:
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return [(env, False)]
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def areaOpSetDefaultValues(self, obj, job):
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'''areaOpSetDefaultValues(obj, job) ... initialize mill facing properties'''
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obj.StepOver = 50
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obj.ZigZagAngle = 45.0
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obj.ExcludeRaisedAreas = False
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obj.ClearEdges = False
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# need to overwrite the default depth calculations for facing
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if job and len(job.Model.Group) > 0:
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obj.OpStartDepth = job.Stock.Shape.BoundBox.ZMax
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obj.OpFinalDepth = job.Proxy.modelBoundBox(job).ZMax
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# If the operation has a geometry identified the Finaldepth
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# is the top of the bboundbox which includes all features.
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if len(obj.Base) >= 1:
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obj.OpFinalDepth = Part.makeCompound(obj.Base).BoundBox.ZMax
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def isPocket(self, b, f, w):
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e = w.Edges[0]
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for fi in range(0, len(b.Shape.Faces)):
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face = b.Shape.Faces[fi]
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for ei in range(0, len(face.Edges)):
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edge = face.Edges[ei]
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if e.isSame(edge) is True:
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if f is face:
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# Alternative: run loop to see if all edges are same
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pass # same source face, look for another
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else:
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if face.CenterOfMass.z < f.CenterOfMass.z:
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return True
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return False
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def getAllIncludedFaces(self, base, env, faceZ):
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included = []
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eXMin = env.BoundBox.XMin
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eXMax = env.BoundBox.XMax
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eYMin = env.BoundBox.YMin
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eYMax = env.BoundBox.YMax
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# eZMin = env.BoundBox.ZMin
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eZMin = faceZ
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# eZMax = env.BoundBox.ZMax
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def isOverlap(fMn, fMx, eMn, eMx):
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if fMx > eMn:
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if fMx <= eMx:
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return True
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elif fMx >= eMx and fMn <= eMx:
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return True
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if fMn < eMx:
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if fMn >= eMn:
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return True
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elif fMn <= eMn and fMx >= eMn:
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return True
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return False
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for fi in range(0, len(base.Shape.Faces)):
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incl = False
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face = base.Shape.Faces[fi]
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fXMin = face.BoundBox.XMin
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fXMax = face.BoundBox.XMax
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fYMin = face.BoundBox.YMin
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fYMax = face.BoundBox.YMax
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# fZMin = face.BoundBox.ZMin
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fZMax = face.BoundBox.ZMax
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if fZMax > eZMin:
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if isOverlap(fXMin, fXMax, eXMin, eXMax) is True:
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if isOverlap(fYMin, fYMax, eYMin, eYMax) is True:
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incl = True
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if incl is True:
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included.append(face)
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return included
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def SetupProperties():
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setup = PathPocketBase.SetupProperties()
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setup.append("BoundaryShape")
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setup.append("ExcludeRaisedAreas")
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setup.append("ClearEdges")
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return setup
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def Create(name, obj=None):
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'''Create(name) ... Creates and returns a Mill Facing operation.'''
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if obj is None:
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obj = FreeCAD.ActiveDocument.addObject("Path::FeaturePython", name)
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obj.Proxy = ObjectFace(obj, name)
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return obj
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