#! /usr/bin/python ''' plasmac_gcode_arcs.py Copyright (C) 2019 Phillip A Carter This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. ''' import os import sys import linuxcnc import math ini = linuxcnc.ini(os.environ['INI_FILE_NAME']) infile = sys.argv[1] materialFile = ini.find('EMC', 'MACHINE').lower() + '_material.cfg' arcsEnable = int(ini.find('PLASMAC', 'ARCS_ENABLE') or 0) arcsAll = int(ini.find('PLASMAC', 'ARCS_ALL') or 0) radius1 = int(ini.find('PLASMAC', 'ARC_RADIUS_1') or 0) radius2 = int(ini.find('PLASMAC', 'ARC_RADIUS_2') or 0) radius3 = int(ini.find('PLASMAC', 'ARC_RADIUS_3') or 0) radius4 = int(ini.find('PLASMAC', 'ARC_RADIUS_4') or 0) radius5 = int(ini.find('PLASMAC', 'ARC_RADIUS_5') or 0) reduce1 = int(ini.find('PLASMAC', 'ARC_VELOCITY_1') or 100) reduce2 = int(ini.find('PLASMAC', 'ARC_VELOCITY_2') or 100) reduce3 = int(ini.find('PLASMAC', 'ARC_VELOCITY_3') or 100) reduce4 = int(ini.find('PLASMAC', 'ARC_VELOCITY_4') or 100) reduce5 = int(ini.find('PLASMAC', 'ARC_VELOCITY_5') or 100) materialsExist = True lastLineArc = False lastX = 0 lastY = 0 reduction = 0 # get arc radius and set velocity percentage def get_arc_radius(lastX, lastY, endX, endY, setI, setJ): global reduction global lastLineArc if 'r' in line: radius = float(line.split('r')[1]) else: radius = math.sqrt(((endX - (lastX + setI)) ** 2) + ((endY - (lastY + setJ)) ** 2)) if radius < radius1: if reduction != reduce1: arc_setup(reduce1, radius) elif radius < radius2: if reduction != reduce2: arc_setup(reduce2, radius) elif radius < radius3: if reduction != reduce3: arc_setup(reduce3, radius) elif radius < radius4: if reduction != reduce4: arc_setup(reduce4, radius) elif radius < radius5: if reduction != reduce5: arc_setup(reduce5, radius) else: # no reduction required if lastLineArc: print('m67e3q0 (Arc Complete, Velocity 100%)') lastLineArc = False reduction = 0 # output the velocity percentage def arc_setup(velocity, radius): global lastLineArc print('m67e3q{0} (Radius: {1:0.3f}, Velocity: {0}%)'.format(velocity, radius)) lastLineArc = True reduction = velocity # get a position def get_position(axis): tmp1 = line.split(axis)[1] if not tmp1[0].isdigit() and not tmp1[0] == '-': tmp1 = tmp1[1:] tmp2 = '' while tmp1[0].isdigit() or tmp1[0] == '.' or tmp1[0] == '-': tmp2 += tmp1[0] tmp1 = tmp1[1:] return float(tmp2) # get the last X and Y positions def get_last_position(Xpos, Ypos): if line.startswith('g') or \ line.startswith('x') or \ line.startswith('y'): if 'x' in line: Xpos = get_position('x') if 'y' in line: Ypos = get_position('y') return Xpos, Ypos # comment out all Z commands def comment_z_commands(): global lastLineArc newline = '' newz = '' removing = 0 comment = 0 for bit in line: if comment: if bit == ')': comment = 0 newline += bit elif removing: if bit in '0123456789.- ': newz += bit else: removing = 0 if newz: newz = newz.rstrip() + ')' newline += bit elif bit == '(': comment = 1 newline += bit elif bit == 'z': removing = 1 newz += '(' + bit else: newline += bit if arcsEnable and lastLineArc: print 'm67e3q0 (Arc Complete, Velocity 100%)' lastLineArc = False reduction = 0 print('{} {}'.format(newline.rstrip(), newz)) # get a list of known materials with open(materialFile, 'r') as f_in: materialList = [0] for line in f_in: if not line.startswith('#'): if line.startswith('[MATERIAL_NUMBER_') and line.strip().endswith(']'): a,b,c = line.split('_') t_number = int(c.replace(']','')) materialList.append(t_number) f = open(infile, 'r') # check for valid material number for line in f: if 'm190' in line.lower(): first, last = line.lower().strip().split('p',1) material = '' # get the material number for mNumber in last.strip(): if mNumber in '0123456789': material += mNumber else: break # if invalid material number if int(material) not in materialList: if materialsExist: print(';The following materials are missing from:\n;{}'.format(materialFile)) materialsExist = False print(';Material #{}'.format(material)) # process every line if materialsExist: f = open(infile, 'r') for line in f: # convert to lower case and remove spaces line = line.strip(' ').lower().replace(' ','') # remove line numbers if line.startswith('n'): line = line.split('n',1)[-1] while line[0].isdigit() or line[0] == '.': line = line[1:] # remove leading 0's from G & M codes if line.startswith('g') or line.startswith('m'): while line[1] == '0': if line[2].isdigit(): line = line[:1] + line[2:] else: break # test for an arc if (line.startswith('g2') or line.startswith('g3')) and line[2].isalpha(): if arcsEnable: endX = lastX endY = lastY setI = setJ = 0 if 'x' in line: endX = get_position('x') if 'y' in line: endY = get_position('y') if 'i' in line: setI = get_position('i') if 'j' in line: setJ = get_position('j') if arcsAll or (lastX == endX and lastY == endY): get_arc_radius(lastX, lastY, endX, endY, setI, setJ) lastX, lastY = get_last_position(lastX, lastY) print(line.rstrip()) # if a commented line then print it elif line.startswith(';') or line.startswith('('): print line.rstrip() # if no Z in line then print it elif not 'z' in line: if arcsEnable: lastX, lastY = get_last_position(lastX, lastY) if lastLineArc: print('m67e3q0 (Arc Complete)') lastLineArc = False reduction = 0 if line.startswith('m2') or line.startswith('m30') or line.startswith('%'): print('m68e3q0') lastX, lastY = get_last_position(lastX, lastY) print(line.rstrip()) # if no other axes in line then print it elif 1 not in [c in line for c in 'xyabcuvw']: print(line.rstrip()) # mixed axes in line else: if arcsEnable: lastX, lastY = get_last_position(lastX, lastY) comment_z_commands() else: if arcsEnable: print('m68e3q0\n') print('M2')