''' slot.py Copyright (C) 2020 - 2024 Phillip A Carter Copyright (C) 2020 - 2024 Gregory D Carl 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 math import gettext for f in sys.path: if '/lib/python' in f: if '/usr' in f: localeDir = 'usr/share/locale' else: localeDir = os.path.join(f'{f.split("/lib")[0]}', 'share', 'locale') break gettext.install("linuxcnc", localedir=localeDir) # Conv is the upstream calling module def preview(Conv, fTmp, fNgc, fNgcBkp, matNumber, matName, preAmble, postAmble, leadinLength, leadoutLength, isCenter, xOffset, yOffset, kerfWidth, isExternal, length, width, angle): error = '' msg1 = _('entry is invalid') valid, xOffset = Conv.conv_is_float(xOffset) if not valid and xOffset: msg0 = _('X ORIGIN') error += f'{msg0} {msg1}\n\n' valid, yOffset = Conv.conv_is_float(yOffset) if not valid and yOffset: msg0 = _('Y ORIGIN') error += f'{msg0} {msg1}\n\n' valid, leadinLength = Conv.conv_is_float(leadinLength) if not valid and leadinLength: msg0 = _('LEAD IN') error += f'{msg0} {msg1}\n\n' valid, leadoutLength = Conv.conv_is_float(leadoutLength) if not valid and leadoutLength: msg0 = _('LEAD OUT') error += f'{msg0} {msg1}\n\n' valid, length = Conv.conv_is_float(length) if not valid and length: msg0 = _('LENGTH') error += f'{msg0} {msg1}\n\n' valid, width = Conv.conv_is_float(width) if not valid and width: msg0 = _('WIDTH') error += f'{msg0} {msg1}\n\n' valid, angle = Conv.conv_is_float(angle) if not valid and angle: msg0 = _('ANGLE') error += f'{msg0} {msg1}\n\n' valid, kerfWidth = Conv.conv_is_float(kerfWidth) if not valid: msg = _('Invalid Kerf Width entry in material') error += f'{msg}\n\n' if error: return error if length == 0: msg = _('LENGTH cannot be zero') error += f'{msg}\n\n' if width == 0: msg = _('WIDTH cannot be zero') error += f'{msg}\n\n' if width > length: msg = _('WIDTH cannot be greater than LENGTH') error += f'{msg}\n\n' if error: return error if isExternal: length += kerfWidth width += kerfWidth else: length -= kerfWidth width -= kerfWidth angle = math.radians(angle) leadInOffset = math.sin(math.radians(45)) * leadinLength leadOutOffset = math.sin(math.radians(45)) * leadoutLength radius = width / 2 blLength = math.sqrt((length / 2) ** 2 + width ** 2) blAngle = math.atan(width / (length / 2)) length = length - width right = math.radians(0) up = math.radians(90) left = math.radians(180) down = math.radians(270) if isCenter: xS = xOffset + (width / 2) * math.cos(angle + up) yS = yOffset + (width / 2) * math.sin(angle + up) else: xS = xOffset + blLength * math.cos(angle + right + blAngle) yS = yOffset + blLength * math.sin(angle + right + blAngle) if isExternal: dir = [up, left, right] else: dir = [down, right, left] outTmp = open(fTmp, 'w') outNgc = open(fNgc, 'w') inWiz = open(fNgcBkp, 'r') for line in inWiz: line = line.strip() if line and line[0] not in ';': if '(new conversational file)' in line: if('\\n') in preAmble: outNgc.write('(preamble)\n') for l in preAmble.split('\\n'): outNgc.write(f'{l}\n') else: outNgc.write(f'\n{preAmble} (preamble)\n') break elif '(postamble)' in line: break elif 'M2' in line.upper() or 'M02' in line.upper() or 'M30' in line.upper(): continue outNgc.write(f"{line}\n") outTmp.write('\n(conversational slot)\n') outTmp.write(f';using material #{matNumber}: {matName}\n') outTmp.write(f'M190 P{matNumber}\n') outTmp.write('M66 P3 L3 Q1\n') outTmp.write('F#<_hal[plasmac.cut-feed-rate]>\n') if leadInOffset > 0: xlCentre = xS + (leadInOffset * math.cos(angle + dir[0])) ylCentre = yS + (leadInOffset * math.sin(angle + dir[0])) xlStart = xlCentre + (leadInOffset * math.cos(angle + dir[1])) ylStart = ylCentre + (leadInOffset * math.sin(angle + dir[1])) outTmp.write(f'G00 X{xlStart:.6f} Y{ylStart:.6f}\n') outTmp.write('M03 $0 S1\n') outTmp.write(f'G03 X{xS:.6f} Y{yS:.6f} I{xlCentre - xlStart:.6f} J{ylCentre - ylStart:.6f}\n') else: outTmp.write(f'G00 X{xS:.6f} Y{yS:.6f}\n') outTmp.write('M03 $0 S1\n') x1 = xS + (length / 2) * math.cos(angle + dir[2]) y1 = yS + (length / 2) * math.sin(angle + dir[2]) outTmp.write(f'G01 X{x1:.6f} Y{y1:.6f}\n') if isExternal: xrCentre = x1 + (radius * math.cos(angle + down)) yrCentre = y1 + (radius * math.sin(angle + down)) xrEnd = xrCentre + (radius * math.cos(angle + down)) yrEnd = yrCentre + (radius * math.sin(angle + down)) outTmp.write(f'G02 X{xrEnd:.6f} Y{yrEnd:.6f} I{xrCentre - x1:.6f} J{yrCentre - y1:.6f}\n') x2 = xrEnd + length * math.cos(angle + left) y2 = yrEnd + length * math.sin(angle + left) outTmp.write(f'G01 X{x2:.6f} Y{y2:.6f}\n') xrCentre = x2 + (radius * math.cos(angle + up)) yrCentre = y2 + (radius * math.sin(angle + up)) xrEnd = xrCentre + (radius * math.cos(angle + up)) yrEnd = yrCentre + (radius * math.sin(angle + up)) outTmp.write(f'G02 X{xrEnd:.6f} Y{yrEnd:.6f} I{xrCentre - x2:.6f} J{yrCentre - y2:.6f}\n') else: xrCentre = x1 + (radius * math.cos(angle + down)) yrCentre = y1 + (radius * math.sin(angle + down)) xrEnd = xrCentre + (radius * math.cos(angle + down)) yrEnd = yrCentre + (radius * math.sin(angle + down)) outTmp.write(f'G03 X{xrEnd:.6f} Y{yrEnd:.6f} I{xrCentre - x1:.6f} J{yrCentre - y1:.6f}\n') x2 = xrEnd + length * math.cos(angle + right) y2 = yrEnd + length * math.sin(angle + right) outTmp.write(f'G01 X{x2:.6f} Y{y2:.6f}\n') xrCentre = x2 + (radius * math.cos(angle + up)) yrCentre = y2 + (radius * math.sin(angle + up)) xrEnd = xrCentre + (radius * math.cos(angle + up)) yrEnd = yrCentre + (radius * math.sin(angle + up)) outTmp.write(f'G03 X{xrEnd:.6f} Y{yrEnd:.6f} I{xrCentre - x2:.6f} J{yrCentre - y2:.6f}\n') outTmp.write(f'G01 X{xS:.6f} Y{yS:.6f}\n') if leadOutOffset > 0: if isExternal: dir = [up, right] else: dir = [down, left] xlCentre = xS + (leadOutOffset * math.cos(angle + dir[0])) ylCentre = yS + (leadOutOffset * math.sin(angle + dir[0])) xlEnd = xlCentre + (leadOutOffset * math.cos(angle + dir[1])) ylEnd = ylCentre + (leadOutOffset * math.sin(angle + dir[1])) outTmp.write(f'G03 X{xlEnd:.6f} Y{ylEnd:.6f} I{xlCentre - xS:.6f} J{ylCentre - yS:.6f}\n') outTmp.write('M05 $0\n') outTmp.close() outTmp = open(fTmp, 'r') for line in outTmp: outNgc.write(line) outTmp.close() if('\\n') in postAmble: outNgc.write('\n(postamble)\n') for l in postAmble.split('\\n'): outNgc.write(f'{l}\n') else: outNgc.write(f'\n{postAmble} (postamble)\n') outNgc.write('M02\n') outNgc.close() return False