File size: 5,094 Bytes
985c397 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 | # SPDX-License-Identifier: LGPL-2.1-or-later
# ***************************************************************************
# * Copyright (c) 2020 sliptonic <shopinghewoods@gmail.com> *
# * *
# * This file is part of the FreeCAD CAx development system. *
# * *
# * This program is free software; you can redistribute it and/or modify *
# * it under the terms of the GNU Lesser General Public License (LGPL) *
# * as published by the Free Software Foundation; either version 2 of *
# * the License, or (at your option) any later version. *
# * for detail see the LICENCE text file. *
# * *
# * FreeCAD is distributed in the hope that it will be useful, *
# * but WITHOUT ANY WARRANTY; without even the implied warranty of *
# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
# * GNU Lesser General Public License for more details. *
# * *
# * You should have received a copy of the GNU Library General Public *
# * License along with FreeCAD; if not, write to the Free Software *
# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
# * USA *
# * *
# ***************************************************************************/
import FreeCAD
import Part
import Path
import PathScripts.PathUtils as PathUtils
import datetime
import importDXF
from builtins import open as pyopen
TOOLTIP = """
This is a postprocessor file for the Path workbench. It is used to
take a pseudo-G-code fragment outputted by a Path object, and output
a dxf file.
Operations are output to layers.
vertical moves are ignore
All path moves are flattened to z=0
Does NOT remove redundant lines. If you have multiple step-downs in your
operation, you'll get multiple redundant lines in your dxf.
import dxf_post
"""
TOOLTIP_ARGS = """
Arguments for dxf:
"""
now = datetime.datetime.now()
# # These globals set common customization preferences
OUTPUT_HEADER = True
if False:
Path.Log.setLevel(Path.Log.Level.DEBUG, Path.Log.thisModule())
Path.Log.trackModule(Path.Log.thisModule())
else:
Path.Log.setLevel(Path.Log.Level.INFO, Path.Log.thisModule())
Path.Log.setLevel(Path.Log.Level.INFO, Path.Log.thisModule())
def processArguments(argstring):
pass
# global OUTPUT_HEADER
def export(objectslist, filename, argstring):
doc = FreeCAD.ActiveDocument
print("postprocessing...")
layers = []
processArguments(argstring)
for i in objectslist:
result = parse(i)
if len(result) > 0:
layername = i.Name
grp = doc.addObject("App::DocumentObjectGroup", layername)
for o in result:
o.adjustRelativeLinks(grp)
grp.addObject(o)
layers.append(grp)
dxfWrite(layers, filename)
def dxfWrite(objlist, filename):
importDXF.export(objlist, filename)
def parse(pathobj):
"""accepts a Path object. Returns a list of wires"""
feedcommands = Path.Geom.CmdMove
rapidcommands = Path.Geom.CmdMoveRapid
edges = []
objlist = []
# Gotta start somewhere. Assume 0,0,0
curPoint = FreeCAD.Vector(0, 0, 0)
for c in PathUtils.getPathWithPlacement(pathobj).Commands:
Path.Log.debug("{} -> {}".format(curPoint, c))
if "Z" in c.Parameters:
newparams = c.Parameters
newparams.pop("Z", None)
flatcommand = Path.Command(c.Name, newparams)
c.Parameters = newparams
else:
flatcommand = c
# ignore gcode that isn't moving
if flatcommand.Name not in feedcommands + rapidcommands:
Path.Log.debug("non move")
continue
# ignore pure vertical feed and rapid
if (
flatcommand.Parameters.get("X", curPoint.x) == curPoint.x
and flatcommand.Parameters.get("Y", curPoint.y) == curPoint.y
):
Path.Log.debug("vertical")
continue
# feeding move. Build an edge
if flatcommand.Name in feedcommands:
edges.append(Path.Geom.edgeForCmd(flatcommand, curPoint))
Path.Log.debug("feeding move")
# update the curpoint
curPoint.x = flatcommand.Parameters.get("X", curPoint.x)
curPoint.y = flatcommand.Parameters.get("Y", curPoint.y)
if len(edges) > 0:
candidates = Part.sortEdges(edges)
for c in candidates:
obj = FreeCAD.ActiveDocument.addObject("Part::Feature", "Wire")
obj.Shape = Part.Wire(c)
objlist.append(obj)
return objlist
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