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Fix units in dynapath post processor.

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Also added common args struture from linuxcnc post.
This commit is contained in:
sliptonic
2020-01-18 13:00:05 -06:00
parent 120b69c74f
commit 1250b38b76
1 changed files with 199 additions and 93 deletions
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292
src/Mod/Path/PathScripts/post/dynapath_post.py
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@@ -1,39 +1,52 @@
#***************************************************************************
#* (c) sliptonic (shopinthewoods@gmail.com) 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 file has been modified from Sliptonis original Linux CNC post *
#* for use with a Dynapath 20 controller all changes and Modifications *
#* (c) Linden (Linden@aktfast.net) 2016 *
#* *
#***************************************************************************/
from __future__ import print_function
# ***************************************************************************
# * (c) sliptonic (shopinthewoods@gmail.com) 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 file has been modified from Sliptonic original Linux CNC post *
# * for use with a Dynapath 20 controller all changes and Modifications *
# * (c) Linden (Linden@aktfast.net) 2016 *
# * *
# * Additional changes 2020 adding arguments to control units, precision *
# * editor, header, etc. Now uses FreeCAD unit system to correctly *
# * set Feed rate - sliptonic *
# * *
# * *
# ***************************************************************************
TOOLTIP='''
from __future__ import print_function
import FreeCAD
from FreeCAD import Units
import argparse
import datetime
import shlex
from PathScripts import PostUtils
TOOLTIP = '''
This is a postprocessor file for the Path workbench. It is used to
take a pseudo-gcode fragment outputted by a Path object, and output
real GCode suitable for a Tree Journyman 325 3 axis mill with Dynapath 20 controller in MM.
This is a work in progress and very few of the functions available on the Dynapath have been
implemented at this time.
This postprocessor, once placed in the appropriate PathScripts folder, can be used directly
from inside FreeCAD, via the GUI importer or via python scripts with:
real GCode suitable for a Tree Journyman 325 3 axis mill with Dynapath 20
controller in MM. This is a work in progress and very few of the functions
available on the Dynapath have been implemented at this time.
This postprocessor, once placed in the appropriate PathScripts folder,
can be used directly from inside FreeCAD, via the GUI importer or via python
scripts with:
Done
Coordinate Decimal limited to 3 places
@@ -48,35 +61,60 @@ To Do
Change G20 and G21 to G70 and G71 for metric or imperial units
Convert arcs to absolute
Strip comments and white spaces
Add file name in brackets limited to 8 alpha numeric no spaces all caps as first line in file
Add file name in brackets limited to 8 alpha numeric no spaces all caps as
first line in file
Change Q to K For depth of peck on G83
Fix tool change
Limit comments length and characters to Uppercase, alpha numeric and spaces add / prior to comments
Limit comments length and characters to Uppercase, alpha numeric and
spaces add / prior to comments
import linuxcnc_post
linuxcnc_post.export(object,"/path/to/file.ncc","")
import dynapath_post
dynapath_post.export(object,"/path/to/file.ncc","")
'''
import datetime
now = datetime.datetime.now()
from PathScripts import PostUtils
parser = argparse.ArgumentParser(prog='dynapath_post',
add_help=False)
parser.add_argument('--no-header', action='store_true',
help='suppress header output')
parser.add_argument('--no-comments', action='store_true',
help='suppress comment output')
parser.add_argument('--line-numbers', action='store_true',
help='prefix with line numbers')
parser.add_argument('--no-show-editor', action='store_true',
help='don\'t pop up editor before writing output')
parser.add_argument('--precision', default='3',
help='number of digits of precision, default=3')
parser.add_argument('--preamble',
help='set commands to be issued before the first command, default="G17\nG90\nG80\nG40"')
parser.add_argument('--postamble',
help='set commands to be issued after the last command, default="M09\nM05\nG80\nG40\nG17\nG90\nM30"')
parser.add_argument('--inches', action='store_true',
help='Convert output for US imperial mode (G20)')
#These globals set common customization preferences
TOOLTIP_ARGS = parser.format_help()
now = datetime.datetime.now()
# These globals set common customization preferences
OUTPUT_COMMENTS = True
OUTPUT_HEADER = False
OUTPUT_HEADER = True
OUTPUT_LINE_NUMBERS = False
SHOW_EDITOR = True
MODAL = False #if true commands are suppressed if the same as previous line.
MODAL = False # if true commands are suppressed if the same as previous line.
COMMAND_SPACE = " "
LINENR = 1 #line number starting value
LINENR = 1 # line number starting value
#These globals will be reflected in the Machine configuration of the project
UNITS = "G21" #G21 for metric, G20 for us standard
UNIT_SPEED_FORMAT = 'mm/min'
UNIT_FORMAT = 'mm'
# These globals will be reflected in the Machine configuration of the project
UNITS = "G21" # G21 for metric, G20 for us standard
MACHINE_NAME = "Tree MM"
CORNER_MIN = {'x':-340, 'y':0, 'z':0 }
CORNER_MAX = {'x':340, 'y':-355, 'z':-150 }
CORNER_MIN = {'x': -340, 'y': 0, 'z': 0}
CORNER_MAX = {'x': 340, 'y': -355, 'z': -150}
#Preamble text will appear at the beginning of the GCODE output file.
# Preamble text will appear at the beginning of the GCODE output file.
PREAMBLE = '''G17
G90
;G90.1 ;needed for simulation only
@@ -84,7 +122,7 @@ G80
G40
'''
#Postamble text will appear following the last operation.
# Postamble text will appear following the last operation.
POSTAMBLE = '''M09
M05
G80
@@ -95,37 +133,86 @@ M30
'''
#Pre operation text will be inserted before every operation
# Pre operation text will be inserted before every operation
PRE_OPERATION = ''''''
#Post operation text will be inserted after every operation
# Post operation text will be inserted after every operation
POST_OPERATION = ''''''
#Tool Change commands will be inserted before a tool change
# Tool Change commands will be inserted before a tool change
TOOL_CHANGE = ''''''
# to distinguish python built-in open function from the one declared below
if open.__module__ in ['__builtin__','io']:
if open.__module__ in ['__builtin__', 'io']:
pythonopen = open
def export(objectslist,filename,argstring):
def processArguments(argstring):
# pylint: disable=global-statement
global OUTPUT_HEADER
global OUTPUT_COMMENTS
global OUTPUT_LINE_NUMBERS
global SHOW_EDITOR
global PRECISION
global PREAMBLE
global POSTAMBLE
global UNITS
global UNIT_SPEED_FORMAT
global UNIT_FORMAT
global MODAL
global USE_TLO
global OUTPUT_DOUBLES
try:
args = parser.parse_args(shlex.split(argstring))
if args.no_header:
OUTPUT_HEADER = False
if args.no_comments:
OUTPUT_COMMENTS = False
if args.line_numbers:
OUTPUT_LINE_NUMBERS = True
if args.no_show_editor:
SHOW_EDITOR = False
print("Show editor = %d" % SHOW_EDITOR)
PRECISION = args.precision
if args.preamble is not None:
PREAMBLE = args.preamble
if args.postamble is not None:
POSTAMBLE = args.postamble
if args.inches:
UNITS = 'G20'
UNIT_SPEED_FORMAT = 'in/min'
UNIT_FORMAT = 'in'
PRECISION = 4
except Exception: # pylint: disable=broad-except
return False
return True
def export(objectslist, filename, argstring):
# pylint: disable=unused-argument
global UNITS # pylint: disable=global-statement
if not processArguments(argstring):
return None
global UNITS
global UNIT_FORMAT
global UNIT_SPEED_FORMAT
for obj in objectslist:
if not hasattr(obj,"Path"):
if not hasattr(obj, "Path"):
print("the object " + obj.Name + " is not a path. Please select only path and Compounds.")
return
print("postprocessing...")
gcode = ""
#Find the machine.
#The user my have overridden post processor defaults in the GUI. Make sure we're using the current values in the Machine Def.
# Find the machine.
# The user my have overridden post processor defaults in the GUI. Make sure we're using the current values in the Machine Def.
myMachine = None
for pathobj in objectslist:
if hasattr(pathobj,"MachineName"):
if hasattr(pathobj, "MachineName"):
myMachine = pathobj.MachineName
if hasattr(pathobj, "MachineUnits"):
if pathobj.MachineUnits == "Metric":
@@ -138,36 +225,41 @@ def export(objectslist,filename,argstring):
# write header
if OUTPUT_HEADER:
gcode += linenumber() + "(Exported by FreeCAD)\n"
gcode += linenumber() + "(Post Processor: " + __name__ +")\n"
gcode += linenumber() + "(Post Processor: " + __name__ + ")\n"
gcode += linenumber() + "(Output Time:"+str(now)+")\n"
#Write the preamble
if OUTPUT_COMMENTS: gcode += linenumber() + "(begin preamble)\n"
# Write the preamble
if OUTPUT_COMMENTS:
gcode += linenumber() + "(begin preamble)\n"
for line in PREAMBLE.splitlines(True):
gcode += linenumber() + line
gcode += linenumber() + UNITS + "\n"
for obj in objectslist:
#do the pre_op
if OUTPUT_COMMENTS: gcode += linenumber() + "(begin operation: " + obj.Label + ")\n"
# do the pre_op
if OUTPUT_COMMENTS:
gcode += linenumber() + "(begin operation: " + obj.Label + ")\n"
for line in PRE_OPERATION.splitlines(True):
gcode += linenumber() + line
gcode += parse(obj)
#do the post_op
if OUTPUT_COMMENTS: gcode += linenumber() + "(finish operation: " + obj.Label + ")\n"
# do the post_op
if OUTPUT_COMMENTS:
gcode += linenumber() + "(finish operation: " + obj.Label + ")\n"
for line in POST_OPERATION.splitlines(True):
gcode += linenumber() + line
#do the post_amble
# do the post_amble
if OUTPUT_COMMENTS: gcode += "(begin postamble)\n"
if OUTPUT_COMMENTS:
gcode += "(begin postamble)\n"
for line in POSTAMBLE.splitlines(True):
gcode += linenumber() + line
if SHOW_EDITOR:
print(f'show editor: {SHOW_EDITOR}')
if FreeCAD.GuiUp and SHOW_EDITOR:
dia = PostUtils.GCodeEditorDialog()
dia.editor.setText(gcode)
result = dia.exec_()
@@ -180,85 +272,99 @@ def export(objectslist,filename,argstring):
print("done postprocessing.")
gfile = pythonopen(filename,"w")
gfile = pythonopen(filename, "w")
gfile.write(final)
gfile.close()
def linenumber():
global LINENR # pylint: disable=global-statement
if OUTPUT_LINE_NUMBERS == True:
global LINENR # pylint: disable=global-statement
if OUTPUT_LINE_NUMBERS is True:
LINENR += 1
return "N" + str(LINENR) + " "
return ""
def parse(pathobj):
# pylint: disable=global-statement
global PRECISION
global UNIT_FORMAT
global UNIT_SPEED_FORMAT
out = ""
lastcommand = None
#params = ['X','Y','Z','A','B','I','J','K','F','S'] #This list control the order of parameters
params = ['X','Y','Z','A','B','I','J','F','S','T','Q','R','L'] #linuxcnc doesn't want K properties on XY plane Arcs need work.
precision_string = '.' + str(PRECISION) + 'f'
if hasattr(pathobj,"Group"): #We have a compound or project.
if OUTPUT_COMMENTS: out += linenumber() + "(compound: " + pathobj.Label + ")\n"
# params = ['X','Y','Z','A','B','I','J','K','F','S'] #This list control the order of parameters
params = ['X', 'Y', 'Z', 'A', 'B', 'I', 'J', 'F', 'S', 'T', 'Q', 'R', 'L']
if hasattr(pathobj, "Group"): # We have a compound or project.
if OUTPUT_COMMENTS:
out += linenumber() + "(compound: " + pathobj.Label + ")\n"
for p in pathobj.Group:
out += parse(p)
return out
else: #parsing simple path
else: # parsing simple path
if not hasattr(pathobj,"Path"): #groups might contain non-path things like stock.
if not hasattr(pathobj, "Path"): # groups might contain non-path things like stock.
return out
if OUTPUT_COMMENTS: out += linenumber() + "(Path: " + pathobj.Label + ")\n"
if OUTPUT_COMMENTS:
out += linenumber() + "(Path: " + pathobj.Label + ")\n"
for c in pathobj.Path.Commands:
outstring = []
command = c.Name
outstring.append(command)
# if modal: only print the command if it is not the same as the last one
if MODAL == True:
if MODAL is True:
if command == lastcommand:
outstring.pop(0)
# Now add the remaining parameters in order
for param in params:
if param in c.Parameters:
if param == 'F':
outstring.append(param + format(c.Parameters['F'], '.0f'))
speed = Units.Quantity(c.Parameters['F'], FreeCAD.Units.Velocity)
if speed.getValueAs(UNIT_SPEED_FORMAT) > 0.0:
outstring.append(param + format(float(speed.getValueAs(UNIT_SPEED_FORMAT)), precision_string))
elif param == 'S':
outstring.append(param + format(c.Parameters[param], '.0f'))
outstring.append(param + format(c.Parameters[param], precision_string))
elif param == 'T':
outstring.append(param + format(c.Parameters['T'], '.0f'))
outstring.append(param + format(c.Parameters['T'], precision_string))
else:
outstring.append(param + format(c.Parameters[param], '.3f'))
pos = Units.Quantity(c.Parameters[param], FreeCAD.Units.Length)
outstring.append(
param + format(float(pos.getValueAs(UNIT_FORMAT)), precision_string))
# store the latest command
lastcommand = command
# Check for Tool Change:
if command == 'M6':
if OUTPUT_COMMENTS: out += linenumber() + "(begin toolchange)\n"
if OUTPUT_COMMENTS:
out += linenumber() + "(begin toolchange)\n"
for line in TOOL_CHANGE.splitlines(True):
out += linenumber() + line
if command == "message":
if OUTPUT_COMMENTS == False:
if OUTPUT_COMMENTS is False:
out = []
else:
outstring.pop(0) #remove the command
outstring.pop(0) # remove the command
#prepend a line number and append a newline
# prepend a line number and append a newline
if len(outstring) >= 1:
if OUTPUT_LINE_NUMBERS:
outstring.insert(0,(linenumber()))
outstring.insert(0, (linenumber()))
#append the line to the final output
# append the line to the final output
for w in outstring:
out += w + COMMAND_SPACE
out = out.strip() + "\n"
return out
print(__name__ + " gcode postprocessor loaded.")
print(__name__ + " gcode postprocessor loaded.")