View Issue Details
ID | Project | Category | View Status | Date Submitted | Last Update |
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0003292 | Path | Feature | public | 2017-12-30 14:51 | 2018-01-23 20:10 |
Reporter | Assigned To | sliptonic | |||
Priority | low | Severity | trivial | Reproducibility | always |
Status | closed | Resolution | fixed | ||
OS | Ubuntu | OS Version | 14,04 | ||
Product Version | 0.17 | ||||
Fixed in Version | 0.17 | ||||
Summary | 0003292: a better postprocess out as clear with linuxcnc postprocessor | ||||
Description | Hi i added 2 more postprocessor optins -- no-doubles as well improved the INT out on command T D H also got the Modal right gives a bettter cler g-code out | ||||
Tags | #post-to-forum | ||||
FreeCAD Information | |||||
2017-12-30 14:51
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linuxcnc_post.py (13,319 bytes)
# *************************************************************************** # * (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 * # * * # ***************************************************************************/ from __future__ import print_function 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 linuxcnc 3 axis mill. 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: import linuxcnc_post linuxcnc_post.export(object,"/path/to/file.ncc","") ''' import FreeCAD from FreeCAD import Units import Path import argparse import datetime import shlex from PathScripts import PostUtils from PathScripts import PathUtils now = datetime.datetime.now() parser = argparse.ArgumentParser(prog='linuxcnc', add_help=False) parser.add_argument('--header', action='store_true', help='output headers (default)') parser.add_argument('--no-header', action='store_true', help='suppress header output') parser.add_argument('--comments', action='store_true', help='output comment (default)') 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-line-numbers', action='store_true', help='don\'t prefix with line numbers (default)') parser.add_argument('--show-editor', action='store_true', help='pop up editor before writing output (default)') 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=4') parser.add_argument('--preamble', help='set commands to be issued before the first command, default="G17\nG90"') parser.add_argument('--postamble', help='set commands to be issued after the last command, default="M05\nG17 G90\nM2"') parser.add_argument('--inches', action='store_true', help='Convert output for US imperial mode (G20)') parser.add_argument('--modal', action='store_true', help='Dont output the Same Gcommand Name USE Modal Mode') parser.add_argument('--no-doubles', action='store_true', help='Dont output the Same Axis Value Mode') TOOLTIP_ARGS=parser.format_help() # These globals set common customization preferences OUTPUT_COMMENTS = True OUTPUT_HEADER = True OUTPUT_LINE_NUMBERS = False SHOW_EDITOR = True MODAL = False # if true commands are suppressed if the same as previous line. OUTPUT_DOUBLES = True COMMAND_SPACE = " " LINENR = 100 # 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' MACHINE_NAME = "LinuxCNC" CORNER_MIN = {'x': 0, 'y': 0, 'z': 0} CORNER_MAX = {'x': 500, 'y': 300, 'z': 300} PRECISION=3 # Preamble text will appear at the beginning of the GCODE output file. PREAMBLE = '''G17 G90 ''' # Postamble text will appear following the last operation. POSTAMBLE = '''M05 G17 G90 M2 ''' # Pre operation text will be inserted before every operation PRE_OPERATION = '''''' # Post operation text will be inserted after every operation POST_OPERATION = '''''' # 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__ == '__builtin__': pythonopen = open def processArguments(argstring): 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 OUTPUT_DOUBLES try: args = parser.parse_args(shlex.split(argstring)) if args.no_header: OUTPUT_HEADER = False if args.header: OUTPUT_HEADER = True if args.no_comments: OUTPUT_COMMENTS = False if args.comments: OUTPUT_COMMENTS = True if args.no_line_numbers: OUTPUT_LINE_NUMBERS = False if args.line_numbers: OUTPUT_LINE_NUMBERS = True if args.no_show_editor: SHOW_EDITOR = False if args.show_editor: SHOW_EDITOR = True 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 if args.modal: MODAL = True if args.no_doubles: OUTPUT_DOUBLES = False except: return False return True def export(objectslist, filename, argstring): if not processArguments(argstring): return None global UNITS global UNIT_SPEED_FORMAT for obj in objectslist: if not hasattr(obj, "Path"): print("the object " + obj.Name + " is not a path. Please select only path and Compounds.") return None print("postprocessing...") gcode = "" # write header if OUTPUT_HEADER: gcode += linenumber() + "(Exported by FreeCAD)\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" for line in PREAMBLE.splitlines(False): gcode += linenumber() + line + "\n" gcode += linenumber() + UNITS + "\n" for obj in objectslist: # fetch machine details job = PathUtils.findParentJob(obj) myMachine = 'not set' if hasattr(job,"MachineName"): myMachine = job.MachineName if hasattr(job, "MachineUnits"): if job.MachineUnits == "Metric": UNITS = "G21" UNIT_SPEED_FORMAT = 'mm/min' else: UNITS = "G20" UNIT_SPEED_FORMAT = 'in/min' # do the pre_op if OUTPUT_COMMENTS: gcode += linenumber() + "(begin operation: %s)\n" % obj.Label gcode += linenumber() + "(machine: %s, %s)\n" % (myMachine, UNIT_SPEED_FORMAT) for line in PRE_OPERATION.splitlines(True): gcode += linenumber() + line gcode += parse(obj) # do the post_op if OUTPUT_COMMENTS: gcode += linenumber() + "(finish operation: %s)\n" % obj.Label for line in POST_OPERATION.splitlines(True): gcode += linenumber() + line # do the post_amble if OUTPUT_COMMENTS: gcode += "(begin postamble)\n" for line in POSTAMBLE.splitlines(True): gcode += linenumber() + line if FreeCAD.GuiUp and SHOW_EDITOR: dia = PostUtils.GCodeEditorDialog() dia.editor.setText(gcode) result = dia.exec_() if result: final = dia.editor.toPlainText() else: final = gcode else: final = gcode print("done postprocessing.") if not filename == '-': gfile = pythonopen(filename, "wb") gfile.write(final) gfile.close() return final def linenumber(): global LINENR if OUTPUT_LINE_NUMBERS is True: LINENR += 10 return "N" + str(LINENR) + " " return "" def parse(pathobj): global PRECISION global MODAL global OUTPUT_DOUBLES out = "" lastcommand = None precision_string = '.' + str(PRECISION) +'f' # params = ['X','Y','Z','A','B','I','J','K','F','S'] #This list control # the order of parameters # linuxcnc doesn't want K properties on XY plane Arcs need work. params = ['X', 'Y', 'Z', 'A', 'B', 'C', 'I', 'J', 'F', 'S', 'T', 'Q', 'R', 'L', 'H', 'D'] #keep track for no doubles currLocation = {} firstmove = Path.Command("G0", {"X": -1, "Y": -1, "Z": -1, "F": -1}) currLocation.update(firstmove.Parameters) 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 # groups might contain non-path things like stock. if not hasattr(pathobj, "Path"): return out # if OUTPUT_COMMENTS: # out += linenumber() + "(" + 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 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' and (currLocation[param] == c.Parameters[param] and OUTPUT_DOUBLES): if c.Name not in ["G0", "G00"]: #linuxcnc doesn't use rapid speeds speed = Units.Quantity(c.Parameters['F'], FreeCAD.Units.Velocity) outstring.append( param + format(float(speed.getValueAs(UNIT_SPEED_FORMAT)), precision_string) ) elif param == 'T' : outstring.append(param + str(int(c.Parameters['T']))) elif param == 'H' : outstring.append(param + str(int(c.Parameters['H']))) elif param == 'D' : outstring.append(param + str(int(c.Parameters['D']))) elif param == 'S' : outstring.append(param + str(int(c.Parameters['S']))) else: if (not OUTPUT_DOUBLES) and (param in currLocation) and (currLocation[param] == c.Parameters[param]): continue else: pos = Units.Quantity(c.Parameters[param], FreeCAD.Units.Length) outstring.append( param + format(float(pos.getValueAs(UNIT_FORMAT)), precision_string) ) #param + format(c.Parameters[param], precision_string)) # store the latest command lastcommand = command currLocation.update(c.Parameters) # Check for Tool Change: if command == 'M6': # if OUTPUT_COMMENTS: # out += linenumber() + "(begin toolchange)\n" for line in TOOL_CHANGE.splitlines(True): out += linenumber() + line if command == "message": if OUTPUT_COMMENTS is False: out = [] else: outstring.pop(0) # remove the command # prepend a line number and append a newline if len(outstring) >= 1: if OUTPUT_LINE_NUMBERS: outstring.insert(0, (linenumber())) # 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.") |
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@maxcncmaho please open a forum thread to present this to the Path community. Also please follow the instructions on how to fill out a proper ticket: https://freecadweb.org/wiki/Tracker This one is missing full version info and a forum thread |
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@maxcncmaho please let the Path devs know about this ticket by starting a thread on the |
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@sliptonic please weigh in at your convenience. thanks! |
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Changes incorporated and refined in p:1232: |
Date Modified | Username | Field | Change |
---|---|---|---|
2017-12-30 14:51 |
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New Issue | |
2017-12-30 14:51 |
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File Added: linuxcnc_post.py | |
2017-12-30 17:06 | Kunda1 | Status | new => feedback |
2017-12-30 17:06 | Kunda1 | Note Added: 0010635 | |
2017-12-30 17:06 | Kunda1 | Tag Attached: #post-to-forum | |
2018-01-02 12:49 | Kunda1 | Note Added: 0010661 | |
2018-01-02 12:49 | Kunda1 | Note Edited: 0010661 | |
2018-01-23 19:04 | Kunda1 | Note Added: 0010832 | |
2018-01-23 20:10 | sliptonic | Assigned To | => sliptonic |
2018-01-23 20:10 | sliptonic | Status | feedback => closed |
2018-01-23 20:10 | sliptonic | Resolution | open => fixed |
2018-01-23 20:10 | sliptonic | Fixed in Version | => 0.17 |
2018-01-23 20:10 | sliptonic | Note Added: 0010837 |