223 lines
11 KiB
Python
223 lines
11 KiB
Python
# -*- coding: utf-8 -*-
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# ***************************************************************************
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# * *
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# * Copyright (c) 2019 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 Path
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import PathScripts.PathDressup as PathDressup
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import PathScripts.PathGeom as PathGeom
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import PathScripts.PathLog as PathLog
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import PathScripts.PathStock as PathStock
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import PathScripts.PathUtil as PathUtil
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import PathScripts.PathUtils as PathUtils
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from PySide import QtCore
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PathLog.setLevel(PathLog.Level.INFO, PathLog.thisModule())
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# PathLog.trackModule(PathLog.thisModule())
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def _vstr(v):
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if v:
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return "(%.2f, %.2f, %.2f)" % (v.x, v.y, v.z)
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return '-'
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class DressupPathBoundary(object):
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def __init__(self, obj, base, job):
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obj.addProperty("App::PropertyLink", "Base", "Base", QtCore.QT_TRANSLATE_NOOP("Path_DressupPathBoundary", "The base path to modify"))
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obj.Base = base
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obj.addProperty("App::PropertyLink", "Stock", "Boundary", QtCore.QT_TRANSLATE_NOOP("Path_DressupPathBoundary", "Solid object to be used to limit the generated Path."))
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obj.Stock = PathStock.CreateFromBase(job)
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obj.addProperty("App::PropertyBool", "Inside", "Boundary", QtCore.QT_TRANSLATE_NOOP("Path_DressupPathBoundary", "Determines if Boundary describes an inclusion or exclusion mask."))
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obj.Inside = True
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self.obj = obj
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self.safeHeight = None
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self.clearanceHeight = None
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def __getstate__(self):
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return None
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def __setstate__(self, state):
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return None
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def onDcoumentRestored(self, obj):
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self.obj = obj
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def onDelete(self, obj, args):
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if obj.Base:
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job = PathUtils.findParentJob(obj)
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if job:
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job.Proxy.addOperation(obj.Base, obj)
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if obj.Base.ViewObject:
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obj.Base.ViewObject.Visibility = True
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obj.Base = None
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if obj.Stock:
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obj.Document.removeObject(obj.Stock.Name)
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obj.Stock = None
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return True
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def boundaryCommands(self, obj, begin, end, verticalFeed):
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PathLog.track(_vstr(begin), _vstr(end))
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if end and PathGeom.pointsCoincide(begin, end):
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return []
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cmds = []
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if begin.z < self.safeHeight:
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cmds.append(self.strG1ZsafeHeight)
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if begin.z < self.clearanceHeight:
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cmds.append(self.strG0ZclearanceHeight)
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if end:
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cmds.append(Path.Command('G0', {'X': end.x, 'Y': end.y}))
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if end.z < self.clearanceHeight:
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cmds.append(Path.Command('G0', {'Z': max(self.safeHeight, end.z)}))
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if end.z < self.safeHeight:
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cmds.append(Path.Command('G1', {'Z': end.z, 'F': verticalFeed}))
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return cmds
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def execute(self, obj):
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if not obj.Base or not obj.Base.isDerivedFrom('Path::Feature') or not obj.Base.Path:
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return
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tc = PathDressup.toolController(obj.Base)
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if len(obj.Base.Path.Commands) > 0:
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self.safeHeight = float(PathUtil.opProperty(obj.Base, 'SafeHeight'))
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self.clearanceHeight = float(PathUtil.opProperty(obj.Base, 'ClearanceHeight'))
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self.strG1ZsafeHeight = Path.Command('G1', {'Z': self.safeHeight, 'F': tc.VertFeed.Value})
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self.strG0ZclearanceHeight = Path.Command('G0', {'Z': self.clearanceHeight})
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boundary = obj.Stock.Shape
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cmd = obj.Base.Path.Commands[0]
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pos = cmd.Placement.Base # bogus m/c position to create first edge
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bogusX = True
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bogusY = True
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commands = [cmd]
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lastExit = None
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for cmd in obj.Base.Path.Commands[1:]:
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if cmd.Name in PathGeom.CmdMoveAll:
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if bogusX == True :
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bogusX = ( 'X' not in cmd.Parameters )
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if bogusY :
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bogusY = ( 'Y' not in cmd.Parameters )
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edge = PathGeom.edgeForCmd(cmd, pos)
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if edge:
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inside = edge.common(boundary).Edges
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outside = edge.cut(boundary).Edges
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if not obj.Inside: # UI "inside boundary" param
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tmp = inside
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inside = outside
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outside = tmp
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# it's really a shame that one cannot trust the sequence and/or
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# orientation of edges
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if 1 == len(inside) and 0 == len(outside):
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PathLog.track(_vstr(pos), _vstr(lastExit), ' + ', cmd)
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# cmd fully included by boundary
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if lastExit:
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if not ( bogusX or bogusY ) : # don't insert false paths based on bogus m/c position
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commands.extend(self.boundaryCommands(obj, lastExit, pos, tc.VertFeed.Value))
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lastExit = None
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commands.append(cmd)
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pos = PathGeom.commandEndPoint(cmd, pos)
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elif 0 == len(inside) and 1 == len(outside):
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PathLog.track(_vstr(pos), _vstr(lastExit), ' - ', cmd)
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# cmd fully excluded by boundary
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if not lastExit:
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lastExit = pos
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pos = PathGeom.commandEndPoint(cmd, pos)
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else:
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PathLog.track(_vstr(pos), _vstr(lastExit), len(inside), len(outside), cmd)
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# cmd pierces boundary
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while inside or outside:
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ie = [e for e in inside if PathGeom.edgeConnectsTo(e, pos)]
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PathLog.track(ie)
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if ie:
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e = ie[0]
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LastPt = e.valueAt(e.LastParameter)
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flip = PathGeom.pointsCoincide(pos, LastPt)
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newPos = e.valueAt(e.FirstParameter) if flip else LastPt
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# inside edges are taken at this point (see swap of inside/outside
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# above - so we can just connect the dots ...
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if lastExit:
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if not ( bogusX or bogusY ) : commands.extend(self.boundaryCommands(obj, lastExit, pos, tc.VertFeed.Value))
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lastExit = None
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PathLog.track(e, flip)
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if not ( bogusX or bogusY ) : # don't insert false paths based on bogus m/c position
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commands.extend(PathGeom.cmdsForEdge(e, flip, False, 50, tc.HorizFeed.Value, tc.VertFeed.Value))
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inside.remove(e)
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pos = newPos
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lastExit = newPos
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else:
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oe = [e for e in outside if PathGeom.edgeConnectsTo(e, pos)]
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PathLog.track(oe)
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if oe:
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e = oe[0]
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ptL = e.valueAt(e.LastParameter)
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flip = PathGeom.pointsCoincide(pos, ptL)
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newPos = e.valueAt(e.FirstParameter) if flip else ptL
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# outside edges are never taken at this point (see swap of
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# inside/outside above) - so just move along ...
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outside.remove(e)
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pos = newPos
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else:
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PathLog.error('huh?')
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import Part
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Part.show(Part.Vertex(pos), 'pos')
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for e in inside:
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Part.show(e, 'ei')
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for e in outside:
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Part.show(e, 'eo')
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raise Exception('This is not supposed to happen')
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# Eif
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# Eif
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# Ewhile
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# Eif
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# pos = PathGeom.commandEndPoint(cmd, pos)
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# Eif
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else:
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PathLog.track('no-move', cmd)
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commands.append(cmd)
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if lastExit:
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commands.extend(self.boundaryCommands(obj, lastExit, None, tc.VertFeed.Value))
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lastExit = None
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else:
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PathLog.warning("No Path Commands for %s" % obj.Base.Label)
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commands = []
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PathLog.track(commands)
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obj.Path = Path.Path(commands)
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def Create(base, name='DressupPathBoundary'):
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'''Create(base, name='DressupPathBoundary') ... creates a dressup limiting base's Path to a boundary.'''
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if not base.isDerivedFrom('Path::Feature'):
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PathLog.error(translate('Path_DressupPathBoundary', 'The selected object is not a path')+'\n')
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return None
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obj = FreeCAD.ActiveDocument.addObject('Path::FeaturePython', name)
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job = PathUtils.findParentJob(base)
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obj.Proxy = DressupPathBoundary(obj, base, job)
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job.Proxy.addOperation(obj, base, True)
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return obj
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