191 lines
9.1 KiB
Python
191 lines
9.1 KiB
Python
# -*- coding: utf-8 -*-
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#***************************************************************************
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#* *
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#* Copyright (c) 2014 Yorik van Havre <yorik@uncreated.net> *
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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,FreeCADGui,Path,PathGui
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from PySide import QtCore,QtGui
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"""Path Pocket object and FreeCAD command"""
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# Qt tanslation handling
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try:
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_encoding = QtGui.QApplication.UnicodeUTF8
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def translate(context, text, disambig=None):
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return QtGui.QApplication.translate(context, text, disambig, _encoding)
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except AttributeError:
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def translate(context, text, disambig=None):
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return QtGui.QApplication.translate(context, text, disambig)
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class ObjectFacePocket:
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def __init__(self,obj):
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obj.addProperty("App::PropertyLinkSub","Base","Path","The base geometry of this object")
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obj.addProperty("App::PropertyDistance","Offset","Path","The distance between the face and the path")
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obj.addProperty("App::PropertyInteger","StartVertex","Path","The vertex index to start the path from")
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obj.addProperty("App::PropertyEnumeration","FirstMove","Path","The type of the first move")
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obj.addProperty("App::PropertyDistance","RetractHeight","Path","The height to travel at between loops")
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obj.addProperty("App::PropertyBool","Fill","Path","Perform only one loop or fill the whole shape")
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obj.FirstMove = ["G0","G1"]
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obj.Proxy = self
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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 execute(self,obj):
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if obj.Base and obj.Offset.Value:
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import Part, DraftGeomUtils
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if "Face" in obj.Base[1][0]:
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shape = getattr(obj.Base[0].Shape,obj.Base[1][0])
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else:
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edges = [getattr(obj.Base[0].Shape,sub) for sub in obj.Base[1]]
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shape = Part.Wire(edges)
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# absolute coords, millimeters, cancel offsets
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output = "G90\nG21\nG40\n"
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# build offsets
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offsets = []
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nextradius = obj.Offset.Value
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result = DraftGeomUtils.pocket2d(shape,nextradius)
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while result:
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offsets.extend(result)
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if obj.Fill:
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nextradius += obj.Offset.Value
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result = DraftGeomUtils.pocket2d(shape,nextradius)
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else:
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result = []
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first = True
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point = None
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# revert the list so we start with the outer wires
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offsets.reverse()
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# loop over successive wires
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while offsets:
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currentWire = offsets.pop()
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if first:
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currentWire = DraftGeomUtils.rebaseWire(currentWire,obj.StartVertex)
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last = None
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for edge in currentWire.Edges:
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if not last:
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# we set the base GO to our first point
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if first:
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output += obj.FirstMove
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first = False
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else:
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if obj.RetractHeight.Value and point:
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output += "G0 X" + str("%f" % point.x) + " Y" + str("%f" % point.y) + " Z" + str("%f" % obj.RetractHeight.Value) + "\n"
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last = edge.Vertexes[0].Point
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output += "G0 X" + str("%f" % last.x) + " Y" + str("%f" % last.y) + " Z" + str("%f" % obj.RetractHeight.Value) + "\n"
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output += "G1"
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last = edge.Vertexes[0].Point
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output += " X" + str("%f" % last.x) + " Y" + str("%f" % last.y) + " Z" + str("%f" % last.z) + "\n"
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if isinstance(edge.Curve,Part.Circle):
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point = edge.Vertexes[-1].Point
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if point == last: # edges can come flipped
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point = edge.Vertexes[0].Point
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center = edge.Curve.Center
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relcenter = center.sub(last)
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v1 = last.sub(center)
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v2 = point.sub(center)
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if edge.Curve.Axis.z < 0:
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output += "G2"
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else:
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output += "G3"
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output += " X" + str("%f" % point.x) + " Y" + str("%f" % point.y) + " Z" + str("%f" % point.z)
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output += " I" + str("%f" % relcenter.x) + " J" + str("%f" % relcenter.y) + " K" + str("%f" % relcenter.z)
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output += "\n"
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last = point
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else:
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point = edge.Vertexes[-1].Point
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if point == last: # edges can come flipped
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point = edge.Vertexes[0].Point
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output += "G1 X" + str("%f" % point.x) + " Y" + str("%f" % point.y) + " Z" + str("%f" % point.z) + "\n"
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last = point
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#print output
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path = Path.Path(output)
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obj.Path = path
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class CommandPathFacePocket:
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def GetResources(self):
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return {'Pixmap' : 'Path-FacePocket',
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'MenuText': QtCore.QT_TRANSLATE_NOOP("Path_FacePocket","Face Pocket"),
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'ToolTip': QtCore.QT_TRANSLATE_NOOP("Path_FacePocket","Creates a pocket inside a loop of edges or a face")}
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def IsActive(self):
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return not FreeCAD.ActiveDocument is None
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def Activated(self):
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# check that the selection contains exactly what we want
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selection = FreeCADGui.Selection.getSelectionEx()
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if len(selection) != 1:
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FreeCAD.Console.PrintError(translate("Path_FacePocket","Please select an edges loop from one object, or a single face\n"))
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return
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if len(selection[0].SubObjects) == 0:
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FreeCAD.Console.PrintError(translate("Path_FacePocket","Please select an edges loop from one object, or a single face\n"))
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return
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for s in selection[0].SubObjects:
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if s.ShapeType != "Edge":
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if (s.ShapeType != "Face") or (len(selection[0].SubObjects) != 1):
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FreeCAD.Console.PrintError(translate("Path_FacePocket","Please select only edges or a single face\n"))
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return
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if selection[0].SubObjects[0].ShapeType == "Edge":
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try:
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import Part
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w = Part.Wire(selection[0].SubObjects)
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except:
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FreeCAD.Console.PrintError(translate("Path_FacePocket","The selected edges don't form a loop\n"))
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return
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# if everything is ok, execute and register the transaction in the undo/redo stack
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FreeCAD.ActiveDocument.openTransaction("Create Pocket")
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FreeCADGui.addModule("PathScripts.PathFacePocket")
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FreeCADGui.addModule("PathScripts.PathUtils")
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FreeCADGui.doCommand('obj = FreeCAD.ActiveDocument.addObject("Path::FeaturePython","FacePocket")')
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FreeCADGui.doCommand('PathScripts.PathFacePocket.ObjectFacePocket(obj)')
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subs = "["
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for s in selection[0].SubElementNames:
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subs += '"' + s + '",'
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subs += "]"
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FreeCADGui.doCommand('obj.Base = (FreeCAD.ActiveDocument.' + selection[0].ObjectName + ',' + subs + ')')
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FreeCADGui.doCommand('obj.ViewObject.Proxy = 0')
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FreeCADGui.doCommand('PathScripts.PathUtils.addToProject(obj)')
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FreeCAD.ActiveDocument.commitTransaction()
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FreeCAD.ActiveDocument.recompute()
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if FreeCAD.GuiUp:
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# register the FreeCAD command
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FreeCADGui.addCommand('Path_FacePocket',CommandPathFacePocket())
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