freecad-cam/Mod/CAM/Path/Post/scripts/refactored_centroid_post.py
2026-02-01 01:59:24 +01:00

351 lines
13 KiB
Python

# ***************************************************************************
# * Copyright (c) 2014 sliptonic <shopinthewoods@gmail.com> *
# * Copyright (c) 2022 - 2025 Larry Woestman <LarryWoestman2@gmail.com> *
# * Copyright (c) 2024 Ondsel <development@ondsel.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 argparse
from typing import Any, Dict, List, Optional, Tuple, Union
from Path.Post.Processor import PostProcessor
import Path.Post.UtilsArguments as PostUtilsArguments
import Path.Post.UtilsExport as PostUtilsExport
import Path
import FreeCAD
translate = FreeCAD.Qt.translate
DEBUG = False
if DEBUG:
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())
#
# Define some types that are used throughout this file.
#
Defaults = Dict[str, bool]
FormatHelp = str
GCodeOrNone = Optional[str]
GCodeSections = List[Tuple[str, GCodeOrNone]]
Parser = argparse.ArgumentParser
ParserArgs = Union[None, str, argparse.Namespace]
Postables = Union[List, List[Tuple[str, List]]]
Section = Tuple[str, List]
Sublist = List
Units = str
Values = Dict[str, Any]
Visible = Dict[str, bool]
class Refactored_Centroid(PostProcessor):
"""The Refactored Centroid post processor class."""
def __init__(self, job) -> None:
super().__init__(
job=job,
tooltip=translate("CAM", "Refactored Centroid post processor"),
tooltipargs=[""],
units="Metric",
)
self.reinitialize()
Path.Log.debug("Refactored Centroid post processor initialized.")
def reinitialize(self) -> None:
"""Initialize or reinitialize the 'core' data structures for the postprocessor."""
#
# This is also used to reinitialize the data structures between tests.
#
self.values: Values = {}
self.init_values(self.values)
self.argument_defaults: Defaults = {}
self.init_argument_defaults(self.argument_defaults)
self.arguments_visible: Visible = {}
self.init_arguments_visible(self.arguments_visible)
self.parser: Parser = self.init_arguments(
self.values, self.argument_defaults, self.arguments_visible
)
#
# Create another parser just to get a list of all possible arguments
# that may be output using --output_all_arguments.
#
self.all_arguments_visible: Visible = {}
for k in iter(self.arguments_visible):
self.all_arguments_visible[k] = True
self.all_visible: Parser = self.init_arguments(
self.values, self.argument_defaults, self.all_arguments_visible
)
def init_values(self, values: Values) -> None:
"""Initialize values that are used throughout the postprocessor."""
#
PostUtilsArguments.init_shared_values(values)
#
# Set any values here that need to override the default values set
# in the init_shared_values routine.
#
# Use 4 digits for axis precision by default.
#
values["AXIS_PRECISION"] = 4
values["DEFAULT_AXIS_PRECISION"] = 4
values["DEFAULT_INCH_AXIS_PRECISION"] = 4
#
# Use ";" as the comment symbol
#
values["COMMENT_SYMBOL"] = ";"
#
# Use 1 digit for feed precision by default.
#
values["FEED_PRECISION"] = 1
values["DEFAULT_FEED_PRECISION"] = 1
values["DEFAULT_INCH_FEED_PRECISION"] = 1
#
# This value usually shows up in the post_op comment as "Finish operation:".
# Change it to "End" to produce "End operation:".
#
values["FINISH_LABEL"] = "End"
#
# If this value is True, then a list of tool numbers
# with their labels are output just before the preamble.
#
values["LIST_TOOLS_IN_PREAMBLE"] = True
#
# Used in the argparser code as the "name" of the postprocessor program.
# This would normally show up in the usage message in the TOOLTIP_ARGS.
#
values["MACHINE_NAME"] = "Centroid"
#
# This list controls the order of parameters in a line during output.
# centroid doesn't want K properties on XY plane; Arcs need work.
#
values["PARAMETER_ORDER"] = [
"X",
"Y",
"Z",
"A",
"B",
"I",
"J",
"F",
"S",
"T",
"Q",
"R",
"L",
"H",
]
#
# Any commands in this value will be output as the last commands
# in the G-code file.
#
values["POSTAMBLE"] = """M99"""
values["POSTPROCESSOR_FILE_NAME"] = __name__
#
# Any commands in this value will be output after the header and
# safety block at the beginning of the G-code file.
#
values["PREAMBLE"] = """G53 G00 G17"""
#
# Output any messages.
#
values["REMOVE_MESSAGES"] = False
#
# Any commands in this value are output after the header but before the preamble,
# then again after the TOOLRETURN but before the POSTAMBLE.
#
values["SAFETYBLOCK"] = """G90 G80 G40 G49"""
#
# Do not show the current machine units just before the PRE_OPERATION.
#
values["SHOW_MACHINE_UNITS"] = False
#
# Do not show the current operation label just before the PRE_OPERATION.
#
values["SHOW_OPERATION_LABELS"] = False
#
# Do not output an M5 command to stop the spindle for tool changes.
#
values["STOP_SPINDLE_FOR_TOOL_CHANGE"] = False
#
# spindle off, height offset canceled, spindle retracted
# (M25 is a centroid command to retract spindle)
#
values[
"TOOLRETURN"
] = """M5
M25
G49 H0"""
values["UNITS"] = self._units
#
# Default to not outputting a G43 following tool changes
#
values["USE_TLO"] = False
#
# This was in the original centroid postprocessor file
# but does not appear to be used anywhere.
#
# ZAXISRETURN = """G91 G28 X0 Z0 G90"""
#
def init_argument_defaults(self, argument_defaults: Defaults) -> None:
"""Initialize which arguments (in a pair) are shown as the default argument."""
PostUtilsArguments.init_argument_defaults(argument_defaults)
#
# Modify which argument to show as the default in flag-type arguments here.
# If the value is True, the first argument will be shown as the default.
# If the value is False, the second argument will be shown as the default.
#
# For example, if you want to show Metric mode as the default, use:
# argument_defaults["metric_inch"] = True
#
# If you want to show that "Don't pop up editor for writing output" is
# the default, use:
# argument_defaults["show-editor"] = False.
#
# Note: You also need to modify the corresponding entries in the "values" hash
# to actually make the default value(s) change to match.
#
def init_arguments_visible(self, arguments_visible: Visible) -> None:
"""Initialize which argument pairs are visible in TOOLTIP_ARGS."""
PostUtilsArguments.init_arguments_visible(arguments_visible)
#
# Modify the visibility of any arguments from the defaults here.
#
arguments_visible["axis-modal"] = False
arguments_visible["precision"] = False
arguments_visible["tlo"] = False
def init_arguments(
self,
values: Values,
argument_defaults: Defaults,
arguments_visible: Visible,
) -> Parser:
"""Initialize the shared argument definitions."""
_parser: Parser = PostUtilsArguments.init_shared_arguments(
values, argument_defaults, arguments_visible
)
#
# Add any argument definitions that are not shared with other postprocessors here.
#
return _parser
def process_arguments(self) -> Tuple[bool, ParserArgs]:
"""Process any arguments to the postprocessor."""
#
# This function is separated out to make it easier to inherit from this postprocessor.
#
args: ParserArgs
flag: bool
(flag, args) = PostUtilsArguments.process_shared_arguments(
self.values, self.parser, self._job.PostProcessorArgs, self.all_visible, "-"
)
#
# If the flag is True, then all of the arguments should be processed normally.
#
if flag:
#
# Process any additional arguments here.
#
#
# Update any variables that might have been modified while processing the arguments.
#
self._units = self.values["UNITS"]
#
# If the flag is False, then args is either None (indicating an error while
# processing the arguments) or a string containing the argument list formatted
# for output. Either way the calling routine will need to handle the args value.
#
return (flag, args)
def process_postables(self) -> GCodeSections:
"""Postprocess the 'postables' in the job to g code sections."""
#
# This function is separated out to make it easier to inherit from this postprocessor.
#
gcode: GCodeOrNone
g_code_sections: GCodeSections
partname: str
postables: Postables
section: Section
sublist: Sublist
postables = self._buildPostList()
Path.Log.debug(f"postables count: {len(postables)}")
g_code_sections = []
for _, section in enumerate(postables):
partname, sublist = section
gcode = PostUtilsExport.export_common(self.values, sublist, "-")
g_code_sections.append((partname, gcode))
return g_code_sections
def export(self) -> GCodeSections:
"""Process the parser arguments, then postprocess the 'postables'."""
args: ParserArgs
flag: bool
Path.Log.debug("Exporting the job")
(flag, args) = self.process_arguments()
#
# If the flag is True, then continue postprocessing the 'postables'
#
if flag:
return self.process_postables()
#
# The flag is False meaning something unusual happened.
#
# If args is None then there was an error during argument processing.
#
if args is None:
return None
#
# Otherwise args will contain the argument list formatted for output
# instead of the "usual" gcode.
#
return [("allitems", args)] # type: ignore
@property
def tooltip(self):
tooltip: str = """
This is a postprocessor file for the CAM workbench.
It is used to take a pseudo-gcode fragment from a CAM object
and output 'real' GCode suitable for a centroid 3 axis mill.
"""
return tooltip
@property
def tooltipArgs(self) -> FormatHelp:
return self.parser.format_help()
@property
def units(self) -> Units:
return self._units