548 lines
22 KiB
Python
548 lines
22 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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import FreeCAD,Path
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from PathScripts import PathUtils
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if FreeCAD.GuiUp:
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import FreeCADGui
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from PySide import QtCore, QtGui
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from DraftTools import translate
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from pivy import coin
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else:
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def translate(ctxt,txt):
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return txt
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__title__="Path Surface Operation"
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__author__ = "sliptonic (Brad Collette)"
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__url__ = "http://www.freecadweb.org"
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"""Path surface 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 ObjectSurface:
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def __init__(self,obj):
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obj.addProperty("App::PropertyLinkSubList","Base","Path",translate("Parent Object(s)","The base geometry of this toolpath"))
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obj.addProperty("App::PropertyBool","Active","Path",translate("Active","Make False, to prevent operation from generating code"))
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obj.addProperty("App::PropertyString","Comment","Path",translate("PathProject","An optional comment for this profile"))
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obj.addProperty("App::PropertyEnumeration", "Algorithm", "Algorithm",translate("PathProject", "The library to use to generate the path"))
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obj.Algorithm = ['OCL Dropcutter', 'OCL Waterline']
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#Tool Properties
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obj.addProperty("App::PropertyIntegerConstraint","ToolNumber","Tool",translate("PathProfile","The tool number in use"))
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obj.ToolNumber = (0, 0, 1000, 0)
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obj.setEditorMode('ToolNumber',1) #make this read only
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#Surface Properties
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obj.addProperty("App::PropertyFloatConstraint", "SampleInterval", "Surface", translate("PathSurface","The Sample Interval. Small values cause long wait"))
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obj.SampleInterval = (0,0,1,0)
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#Depth Properties
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obj.addProperty("App::PropertyDistance", "ClearanceHeight", "Depth", translate("PathProject","The height needed to clear clamps and obstructions"))
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obj.addProperty("App::PropertyDistance", "SafeHeight", "Depth", translate("PathProject","Rapid Safety Height between locations."))
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obj.addProperty("App::PropertyFloatConstraint", "StepDown", "Depth", translate("PathProject","Incremental Step Down of Tool"))
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obj.StepDown = (0.0, 0.01, 100.0, 0.5)
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obj.addProperty("App::PropertyDistance", "StartDepth", "Depth", translate("PathProject","Starting Depth of Tool- first cut depth in Z"))
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obj.addProperty("App::PropertyDistance", "FinalDepth", "Depth", translate("PathProject","Final Depth of Tool- lowest value in Z"))
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obj.addProperty("App::PropertyDistance", "FinishDepth", "Depth", translate("PathProject","Maximum material removed on final pass."))
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obj.Proxy = self
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def addsurfacebase(self, obj, ss, sub=""):
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baselist = obj.Base
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if len(baselist) == 0: #When adding the first base object, guess at heights
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try:
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bb = ss.Shape.BoundBox #parent boundbox
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subobj = ss.Shape.getElement(sub)
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fbb = subobj.BoundBox #feature boundbox
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obj.StartDepth = bb.ZMax
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obj.ClearanceHeight = bb.ZMax + 5.0
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obj.SafeHeight = bb.ZMax + 3.0
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if fbb.ZMax < bb.ZMax:
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obj.FinalDepth = fbb.ZMax
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else:
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obj.FinalDepth = bb.ZMin
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except:
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obj.StartDepth = 5.0
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obj.ClearanceHeight = 10.0
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obj.SafeHeight = 8.0
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item = (ss, sub)
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if item in baselist:
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FreeCAD.Console.PrintWarning("this object already in the list"+ "\n")
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else:
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baselist.append (item)
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obj.Base = baselist
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self.execute(obj)
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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 _waterline(self,obj, s, bb):
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import ocl
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from PathScripts.PathUtils import depth_params, fmt
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import time
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def drawLoops(loops):
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nloop = 0
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waterlinestring = ""
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waterlinestring += "(waterline begin)"
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for loop in loops:
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p = loop[0]
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loopstring = "(loop begin)" +"\n"
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loopstring += "G0 Z" + str(obj.SafeHeight.Value) +"\n"
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loopstring += "G0 X" + str(fmt(p.x)) + " Y" + str(fmt(p.y)) +"\n"
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loopstring += "G1 Z" + str(fmt(p.z)) +"\n"
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for p in loop[1:]:
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loopstring += "G1 X" + str(fmt(p.x)) + " Y" + str(fmt(p.y)) + " Z" + str(fmt(p.z)) +"\n"
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zheight = p.z
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p = loop[0]
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loopstring += "G1 X" + str(fmt(p.x)) + " Y" + str(fmt(p.y)) + " Z" + str(fmt(zheight)) +"\n"
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loopstring += "(loop end)" +"\n"
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print " loop ",nloop, " with ", len(loop), " points"
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nloop = nloop+1
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waterlinestring += loopstring
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waterlinestring += "(waterline end)" +"\n"
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return waterlinestring
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depthparams = depth_params (obj.ClearanceHeight.Value, obj.SafeHeight.Value, obj.StartDepth.Value, obj.StepDown, obj.FinishDepth.Value, obj.FinalDepth.Value)
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# stlfile = "../../stl/gnu_tux_mod.stl"
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# surface = STLSurfaceSource(stlfile)
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surface = s
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t_before = time.time()
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zheights= depthparams.get_depths()
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wl = ocl.Waterline()
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#wl = ocl.AdaptiveWaterline() # this is slower, ca 60 seconds on i7 CPU
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wl.setSTL(surface)
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diam = 0.5
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length= 10.0
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cutter = ocl.BallCutter( diam , length ) # any ocl MillingCutter class should work here
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wl.setCutter(cutter)
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wl.setSampling(obj.SampleInterval) # this should be smaller than the smallest details in the STL file
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# AdaptiveWaterline() also has settings for minimum sampling interval (see c++ code)
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all_loops=[]
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for zh in zheights:
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print "calculating Waterline at z= ", zh
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wl.reset()
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wl.setZ(zh) # height for this waterline
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wl.run()
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all_loops.append( wl.getLoops() )
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t_after = time.time()
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calctime = t_after-t_before
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n=0
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output = ""
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for loops in all_loops: # at each z-height, we may get many loops
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print " %d/%d:" % (n,len(all_loops))
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output += drawLoops(loops)
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n=n+1
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print "(" + str(calctime) + ")"
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return output
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def _dropcutter(self,obj, s, bb):
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import ocl
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import time
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cutter = ocl.CylCutter(self.radius*2, 5)
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pdc = ocl.PathDropCutter() # create a pdc
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pdc.setSTL(s)
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pdc.setCutter(cutter)
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pdc.minimumZ = 0.25
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pdc.setSampling(obj.SampleInterval)
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# some parameters for this "zigzig" pattern
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xmin=bb.XMin - cutter.getDiameter()
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xmax=bb.XMax + cutter.getDiameter()
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ymin=bb.YMin - cutter.getDiameter()
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ymax=bb.YMax + cutter.getDiameter()
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Ny=int(bb.YLength/cutter.getDiameter()) # number of lines in the y-direction
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dy = float(ymax-ymin)/Ny # the y step-over
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path = ocl.Path() # create an empty path object
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# add Line objects to the path in this loop
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for n in xrange(0,Ny):
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y = ymin+n*dy
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p1 = ocl.Point(xmin,y,0) # start-point of line
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p2 = ocl.Point(xmax,y,0) # end-point of line
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if (n % 2 == 0): #even
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l = ocl.Line(p1,p2) # line-object
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else: #odd
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l = ocl.Line(p2,p1) # line-object
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path.append( l ) # add the line to the path
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pdc.setPath( path )
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# run drop-cutter on the path
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t_before = time.time()
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pdc.run()
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t_after = time.time()
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print "calculation took ", t_after-t_before," s"
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#retrieve the points
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clp = pdc.getCLPoints()
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print "points received: " + str(len(clp))
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#generate the path commands
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output = ""
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output += "G0 Z" + str(obj.ClearanceHeight.Value) + "\n"
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output += "G0 X" + str(clp[0].x) +" Y" + str(clp[0].y) + "\n"
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output += "G1 Z" + str(clp[0].z) + " F" + str(self.vertFeed) + "\n"
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for c in clp:
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output += "G1 X" + str(c.x) +" Y" + str(c.y) +" Z" + str(c.z)+ "\n"
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return output
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def execute(self,obj):
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import MeshPart
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FreeCAD.Console.PrintWarning(translate("PathSurface","Hold on. This might take a minute.\n"))
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output = ""
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toolLoad = PathUtils.getLastToolLoad(obj)
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if toolLoad == None:
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self.vertFeed = 100
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self.horizFeed = 100
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self.radius = 0.25
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obj.ToolNumber= 0
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else:
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self.vertFeed = toolLoad.VertFeed.Value
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self.horizFeed = toolLoad.HorizFeed.Value
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tool = PathUtils.getTool(obj, toolLoad.ToolNumber)
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self.radius = tool.Diameter/2
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obj.ToolNumber= toolLoad.ToolNumber
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if obj.Base:
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for b in obj.Base:
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if obj.Algorithm in ['OCL Dropcutter', 'OCL Waterline']:
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try:
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import ocl
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except:
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FreeCAD.Console.PrintError(translate("PathSurface","This operation requires OpenCamLib to be installed.\n"))
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return
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mesh = b[0]
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if mesh.TypeId.startswith('Mesh'):
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mesh = mesh.Mesh
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bb = mesh.BoundBox
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else:
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bb = mesh.Shape.BoundBox
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mesh = MeshPart.meshFromShape(mesh.Shape,MaxLength=2)
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s= ocl.STLSurf()
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for f in mesh.Facets:
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p = f.Points[0];q=f.Points[1];r=f.Points[2]
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t= ocl.Triangle(ocl.Point(p[0],p[1],p[2]),ocl.Point(q[0],q[1],q[2]),ocl.Point(r[0],r[1],r[2]))
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s.addTriangle(t)
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if obj.Algorithm == 'OCL Dropcutter':
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output = self._dropcutter(obj, s, bb)
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elif obj.Algorithm == 'OCL Waterline':
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output = self._waterline(obj, s, bb)
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path = Path.Path(output)
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obj.Path = path
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class ViewProviderSurface:
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def __init__(self,obj): #mandatory
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# obj.addProperty("App::PropertyFloat","SomePropertyName","PropertyGroup","Description of this property")
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obj.Proxy = self
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def __getstate__(self): #mandatory
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return None
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def __setstate__(self,state): #mandatory
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return None
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def getIcon(self): #optional
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return ":/icons/Path-Surfacing.svg"
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def onChanged(self,obj,prop): #optional
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# this is executed when a property of the VIEW PROVIDER changes
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pass
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def updateData(self,obj,prop): #optional
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# this is executed when a property of the APP OBJECT changes
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pass
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def setEdit(self,vobj,mode=0):
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FreeCADGui.Control.closeDialog()
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taskd = TaskPanel()
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taskd.obj = vobj.Object
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FreeCADGui.Control.showDialog(taskd)
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taskd.setupUi()
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return True
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def unsetEdit(self,vobj,mode): #optional
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# this is executed when the user cancels or terminates edit mode
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pass
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class CommandPathSurfacing:
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def GetResources(self):
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return {'Pixmap' : 'Path-Surfacing',
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'MenuText': QtCore.QT_TRANSLATE_NOOP("Path_Surface","Surfacing"),
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'Accel': "P, D",
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'ToolTip': QtCore.QT_TRANSLATE_NOOP("Path_Surface","Creates a Path Surfacing object")}
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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("PathSurface","Please select a single solid object from the project tree\n"))
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# return
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# if not len(selection[0].SubObjects) == 0:
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# FreeCAD.Console.PrintError(translate("PathSurface","Please select a single solid object from the project tree\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("PathSurface","Please select only edges or a single face\n"))
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# return
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# sel = selection[0].Object
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# #get type of object
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# if sel.TypeId.startswith('Mesh'):
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# #it is a mesh already
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# print 'was already mesh'
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# ztop = sel.Mesh.BoundBox.ZMax
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# zbottom = sel.Mesh.BoundBox.ZMin
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# #mesh = sel
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# elif sel.TypeId.startswith('Part') and \
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# (sel.Shape.BoundBox.XLength > 0) and \
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# (sel.Shape.BoundBox.YLength > 0) and \
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# (sel.Shape.BoundBox.ZLength > 0):
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# ztop = sel.Shape.BoundBox.ZMax
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# zbottom = sel.Shape.BoundBox.ZMin
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# print 'this is a solid Part object'
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# else:
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# FreeCAD.Console.PrintError(translate("PathSurface","Cannot work with this object\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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ztop = 10
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zbottom = 0
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FreeCAD.ActiveDocument.openTransaction(translate("Path_Surfacing","Create Surface"))
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FreeCADGui.addModule("PathScripts.PathSurface")
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FreeCADGui.doCommand('obj = FreeCAD.ActiveDocument.addObject("Path::FeaturePython","Surface")')
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FreeCADGui.doCommand('PathScripts.PathSurface.ObjectSurface(obj)')
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FreeCADGui.doCommand('obj.Active = True')
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FreeCADGui.doCommand('PathScripts.PathSurface.ViewProviderSurface(obj.ViewObject)')
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FreeCADGui.doCommand('from PathScripts import PathUtils')
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FreeCADGui.doCommand('obj.ClearanceHeight = ' + str(ztop + 2))
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FreeCADGui.doCommand('obj.StartDepth = ' + str(ztop))
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FreeCADGui.doCommand('obj.SafeHeight = ' + str(ztop + 2))
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FreeCADGui.doCommand('obj.StepDown = ' + str((ztop-zbottom)/8))
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FreeCADGui.doCommand('obj.SampleInterval = 0.4')
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FreeCADGui.doCommand('obj.FinalDepth=' + str(zbottom))
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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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FreeCADGui.doCommand('obj.ViewObject.startEditing()')
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class TaskPanel:
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def __init__(self):
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#self.form = FreeCADGui.PySideUic.loadUi(FreeCAD.getHomePath() + "Mod/Path/SurfaceEdit.ui")
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self.form = FreeCADGui.PySideUic.loadUi(":/panels/SurfaceEdit.ui")
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def accept(self):
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self.getFields()
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FreeCADGui.ActiveDocument.resetEdit()
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FreeCADGui.Control.closeDialog()
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FreeCAD.ActiveDocument.recompute()
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FreeCADGui.Selection.removeObserver(self.s)
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def reject(self):
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FreeCADGui.Control.closeDialog()
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FreeCAD.ActiveDocument.recompute()
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FreeCADGui.Selection.removeObserver(self.s)
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def getFields(self):
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if self.obj:
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if hasattr(self.obj,"StartDepth"):
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self.obj.StartDepth = self.form.startDepth.text()
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if hasattr(self.obj,"FinalDepth"):
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self.obj.FinalDepth = self.form.finalDepth.text()
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if hasattr(self.obj,"SafeHeight"):
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self.obj.SafeHeight = self.form.safeHeight.text()
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if hasattr(self.obj,"ClearanceHeight"):
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self.obj.ClearanceHeight = self.form.clearanceHeight.text()
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if hasattr(self.obj,"StepDown"):
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self.obj.StepDown = self.form.stepDown.value()
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if hasattr(self.obj,"Algorithm"):
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self.obj.Algorithm = str(self.form.algorithmSelect.currentText())
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self.obj.Proxy.execute(self.obj)
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def open(self):
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self.s =SelObserver()
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# install the function mode resident
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FreeCADGui.Selection.addObserver(self.s)
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def addBase(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("PathSurface","Please select a single solid object from the project tree\n"))
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return
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if not len(selection[0].SubObjects) == 0:
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FreeCAD.Console.PrintError(translate("PathSurface","Please select a single solid object from the project tree\n"))
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return
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sel = selection[0].Object
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#get type of object
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if sel.TypeId.startswith('Mesh'):
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#it is a mesh already
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print 'was already mesh'
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#mesh = sel
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elif sel.TypeId.startswith('Part') and \
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(sel.Shape.BoundBox.XLength > 0) and \
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(sel.Shape.BoundBox.YLength > 0) and \
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(sel.Shape.BoundBox.ZLength > 0):
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print 'this is a solid Part object'
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else:
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FreeCAD.Console.PrintError(translate("PathSurface","Cannot work with this object\n"))
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return
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self.obj.Proxy.addsurfacebase(self.obj, sel)
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self.setupUi() #defaults may have changed. Reload.
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self.form.baseList.clear()
|
|
for i in self.obj.Base:
|
|
self.form.baseList.addItem(i[0].Name)
|
|
|
|
def deleteBase(self):
|
|
dlist = self.form.baseList.selectedItems()
|
|
for d in dlist:
|
|
newlist = []
|
|
for i in self.obj.Base:
|
|
if not i[0].Name == d.text():
|
|
newlist.append (i)
|
|
self.obj.Base = newlist
|
|
self.form.baseList.takeItem(self.form.baseList.row(d))
|
|
self.obj.Proxy.execute(self.obj)
|
|
FreeCAD.ActiveDocument.recompute()
|
|
|
|
def itemActivated(self):
|
|
FreeCADGui.Selection.clearSelection()
|
|
slist = self.form.baseList.selectedItems()
|
|
for i in slist:
|
|
o = FreeCAD.ActiveDocument.getObject(i.text())
|
|
FreeCADGui.Selection.addSelection(o)
|
|
FreeCADGui.updateGui()
|
|
|
|
def reorderBase(self):
|
|
newlist = []
|
|
for i in range(self.form.baseList.count()):
|
|
s = self.form.baseList.item(i).text()
|
|
obj = FreeCAD.ActiveDocument.getObject(s)
|
|
newlist.append(obj)
|
|
self.obj.Base=newlist
|
|
self.obj.Proxy.execute(self.obj)
|
|
FreeCAD.ActiveDocument.recompute()
|
|
|
|
def getStandardButtons(self):
|
|
return int(QtGui.QDialogButtonBox.Ok)
|
|
|
|
def setupUi(self):
|
|
self.form.startDepth.setText(str(self.obj.StartDepth.Value))
|
|
self.form.finalDepth.setText(str(self.obj.FinalDepth.Value))
|
|
self.form.safeHeight.setText(str(self.obj.SafeHeight.Value))
|
|
self.form.clearanceHeight.setText(str(self.obj.ClearanceHeight.Value))
|
|
|
|
for i in self.obj.Base:
|
|
self.form.baseList.addItem(i[0].Name)
|
|
|
|
#Connect Signals and Slots
|
|
self.form.startDepth.editingFinished.connect(self.getFields)
|
|
self.form.finalDepth.editingFinished.connect(self.getFields)
|
|
self.form.safeHeight.editingFinished.connect(self.getFields)
|
|
self.form.clearanceHeight.editingFinished.connect(self.getFields)
|
|
|
|
self.form.addBase.clicked.connect(self.addBase)
|
|
self.form.deleteBase.clicked.connect(self.deleteBase)
|
|
self.form.reorderBase.clicked.connect(self.reorderBase)
|
|
|
|
self.form.baseList.itemSelectionChanged.connect(self.itemActivated)
|
|
|
|
class SelObserver:
|
|
def __init__(self):
|
|
import PathScripts.PathSelection as PST
|
|
PST.surfaceselect()
|
|
|
|
def __del__(self):
|
|
import PathScripts.PathSelection as PST
|
|
PST.clear()
|
|
|
|
def addSelection(self,doc,obj,sub,pnt): # Selection object
|
|
FreeCADGui.doCommand('Gui.Selection.addSelection(FreeCAD.ActiveDocument.' + obj +')')
|
|
FreeCADGui.updateGui()
|
|
|
|
|
|
if FreeCAD.GuiUp:
|
|
# register the FreeCAD command
|
|
FreeCADGui.addCommand('Path_Surfacing',CommandPathSurfacing())
|
|
|
|
FreeCAD.Console.PrintLog("Loading PathSurfacing... done\n")
|