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Merge pull request #3243 from etrombly/gcode

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[Path] Add import for gcode in the path workbench to create a PathCustom
This commit is contained in:
sliptonic
2020-03-23 15:23:23 -05:00
committed by GitHub
parent bd0f5ca5c5 8756ae8590
commit 6d3f8ffd8d
4 changed files with 162 additions and 17 deletions
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1
src/Mod/Path/CMakeLists.txt
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@@ -128,6 +128,7 @@ SET(PathScripts_post_SRCS
PathScripts/post/comparams_post.py
PathScripts/post/dynapath_post.py
PathScripts/post/example_pre.py
PathScripts/post/gcode_pre.py
PathScripts/post/grbl_post.py
PathScripts/post/jtech_post.py
PathScripts/post/linuxcnc_post.py

36
src/Mod/Path/PathScripts/PathCustom.py
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@@ -25,9 +25,12 @@ import FreeCAD
import FreeCADGui
import Path
from PySide import QtCore
from copy import copy
__doc__ = """Path Custom object and FreeCAD command"""
movecommands = ['G0', 'G00', 'G1', 'G01', 'G2', 'G02', 'G3', 'G03']
# Qt translation handling
def translate(context, text, disambig=None):
@@ -35,10 +38,14 @@ def translate(context, text, disambig=None):
class ObjectCustom:
def __init__(self, obj):
obj.addProperty("App::PropertyStringList", "Gcode", "Path",
QtCore.QT_TRANSLATE_NOOP("PathCustom", "The gcode to be inserted"))
obj.addProperty("App::PropertyLink", "ToolController", "Path",
QtCore.QT_TRANSLATE_NOOP("PathCustom", "The tool controller that will be used to calculate the path"))
obj.addProperty("App::PropertyPlacement", "Offset", "Path",
"Placement Offset")
def __init__(self,obj):
obj.addProperty("App::PropertyStringList", "Gcode", "Path", QtCore.QT_TRANSLATE_NOOP("PathCustom", "The gcode to be inserted"))
obj.addProperty("App::PropertyLink", "ToolController", "Path", QtCore.QT_TRANSLATE_NOOP("PathCustom", "The tool controller that will be used to calculate the path"))
obj.Proxy = self
def __getstate__(self):
@@ -48,13 +55,22 @@ class ObjectCustom:
return None
def execute(self, obj):
newpath = Path.Path()
if obj.Gcode:
s = ""
for l in obj.Gcode:
s += str(l)
if s:
path = Path.Path(s)
obj.Path = path
newcommand = Path.Command(str(l))
if newcommand.Name in movecommands:
if 'X' in newcommand.Parameters:
newcommand.x += obj.Offset.Base.x
if 'Y' in newcommand.Parameters:
newcommand.y += obj.Offset.Base.y
if 'Z' in newcommand.Parameters:
newcommand.z += obj.Offset.Base.z
newpath.insertCommand(newcommand)
obj.Path=newpath
class CommandPathCustom:
@@ -75,7 +91,7 @@ class CommandPathCustom:
FreeCAD.ActiveDocument.openTransaction("Create Custom Path")
FreeCADGui.addModule("PathScripts.PathCustom")
FreeCADGui.addModule("PathScripts.PathUtils")
FreeCADGui.doCommand('obj = FreeCAD.ActiveDocument.addObject("Path::FeaturePython","Custom")')
FreeCADGui.doCommand('obj = FreeCAD.ActiveDocument.addObject("Path::FeaturePython", "Custom")')
FreeCADGui.doCommand('PathScripts.PathCustom.ObjectCustom(obj)')
FreeCADGui.doCommand('obj.ViewObject.Proxy = 0')
FreeCADGui.doCommand('PathScripts.PathUtils.addToJob(obj)')
@@ -86,4 +102,4 @@ class CommandPathCustom:
if FreeCAD.GuiUp:
# register the FreeCAD command
FreeCADGui.addCommand('Path_Custom', CommandPathCustom())
FreeCADGui.addCommand('Path_Custom', CommandPathCustom())

13
src/Mod/Path/PathScripts/post/example_pre.py
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@@ -73,13 +73,11 @@ def insert(filename, docname):
def parse(inputstring):
"parse(inputstring): returns a parsed output string"
print("preprocessing...")
print(inputstring)
PathLog.track(inputstring)
# split the input by line
lines = inputstring.split("\n")
output = ""
lastcommand = None
print(lines)
output = [] #""
lastcommand = None
for lin in lines:
# remove any leftover trailing and preceding spaces
@@ -91,7 +89,7 @@ def parse(inputstring):
# remove line numbers
lin = lin.split(" ", 1)
if len(lin) >= 1:
lin = lin[1]
lin = lin[1].strip()
else:
continue
@@ -100,7 +98,8 @@ def parse(inputstring):
continue
if lin[0].upper() in ["G", "M"]:
# found a G or M command: we store it
output += lin + "\n"
#output += lin + "\n"
output.append(Path.Command(str(lin))) # + "\n"
last = lin[0].upper()
for c in lin[1:]:
if not c.isdigit():
@@ -110,7 +109,7 @@ def parse(inputstring):
lastcommand = last
elif lastcommand:
# no G or M command: we repeat the last one
output += lastcommand + " " + lin + "\n"
output.append(Path.Command(str(lastcommand + " " + lin))) # + "\n"
print("done preprocessing.")
return output

129
src/Mod/Path/PathScripts/post/gcode_pre.py Normal file
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@@ -0,0 +1,129 @@
# ***************************************************************************
# * (c) Yorik van Havre (yorik@uncreated.net) 2014 *
# * *
# * 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 *
# * *
# ***************************************************************************/
'''
This is an example preprocessor file for the Path workbench. Its aim is to
open a gcode file, parse its contents, and create the appropriate objects
in FreeCAD.
Read the Path Workbench documentation to know how to create Path objects
from GCode.
'''
import os
import Path
import FreeCAD
import PathScripts.PathUtils
import PathScripts.PathLog as PathLog
import re
# LEVEL = PathLog.Level.DEBUG
LEVEL = PathLog.Level.INFO
PathLog.setLevel(LEVEL, PathLog.thisModule())
if LEVEL == PathLog.Level.DEBUG:
PathLog.trackModule(PathLog.thisModule())
# to distinguish python built-in open function from the one declared below
if open.__module__ in ['__builtin__', 'io']:
pythonopen = open
def open(filename):
"called when freecad opens a file."
PathLog.track(filename)
docname = os.path.splitext(os.path.basename(filename))[0]
doc = FreeCAD.newDocument(docname)
insert(filename, doc.Name)
def insert(filename, docname):
"called when freecad imports a file"
PathLog.track(filename)
gfile = pythonopen(filename)
gcode = gfile.read()
gfile.close()
# split on tool changes
paths = re.split('(?=[mM]+\s?0?6)', gcode)
# if there are any tool changes combine the preamble with the default tool
if len(paths) > 1:
paths = ["\n".join(paths[0:2])] + paths[2:]
for path in paths:
gcode = parse(path)
doc = FreeCAD.getDocument(docname)
obj = FreeCAD.ActiveDocument.addObject("Path::FeaturePython", "Custom")
PathScripts.PathCustom.ObjectCustom(obj)
obj.ViewObject.Proxy = 0
obj.Gcode = gcode
PathScripts.PathUtils.addToJob(obj)
obj.ToolController = PathScripts.PathUtils.findToolController(obj)
FreeCAD.ActiveDocument.recompute()
def parse(inputstring):
"parse(inputstring): returns a parsed output string"
print("preprocessing...")
PathLog.track(inputstring)
# split the input by line
lines = inputstring.split("\n")
output = [] #""
lastcommand = None
for lin in lines:
# remove any leftover trailing and preceding spaces
lin = lin.strip()
if not lin:
# discard empty lines
continue
if lin[0].upper() in ["N"]:
# remove line numbers
lin = lin.split(" ", 1)
if len(lin) >= 1:
lin = lin[1].strip()
else:
continue
if lin[0] in ["(", "%", "#", ";"]:
# discard comment and other non strictly gcode lines
continue
if lin[0].upper() in ["G", "M"]:
# found a G or M command: we store it
#output += lin + "\n"
output.append(lin) # + "\n"
last = lin[0].upper()
for c in lin[1:]:
if not c.isdigit():
break
else:
last += c
lastcommand = last
elif lastcommand:
# no G or M command: we repeat the last one
output.append(lastcommand + " " + lin) # + "\n"
print("done preprocessing.")
return output
print(__name__ + " gcode preprocessor loaded.")