212 lines
7.7 KiB
Python
212 lines
7.7 KiB
Python
'''
|
|
circle.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,
|
|
isOvercut, overCut,
|
|
smallHoleDia, smallHoleSpeed,
|
|
diameter, invalidLeads):
|
|
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, diameter = Conv.conv_is_float(diameter)
|
|
if not valid and diameter:
|
|
msg0 = _('DIAMETER')
|
|
error += f'{msg0} {msg1}\n\n'
|
|
valid, overCut = Conv.conv_is_float(overCut)
|
|
if not valid and overCut:
|
|
msg0 = _('OC LENGTH')
|
|
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 diameter == 0:
|
|
msg = _('DIAMETER cannot be zero')
|
|
error += f'{msg}\n\n'
|
|
if error:
|
|
return error
|
|
kOffset = kerfWidth / 2
|
|
radius = diameter / 2
|
|
angle = math.radians(45)
|
|
leadInOffset = math.sin(angle) * leadinLength
|
|
leadOutOffset = math.sin(math.radians(45)) * leadoutLength
|
|
if leadInOffset > radius - kOffset:
|
|
leadInOffset = radius - kOffset
|
|
if isExternal:
|
|
ijOffset = (radius + kOffset) * math.sin(angle)
|
|
else:
|
|
ijOffset = (radius - kOffset) * math.sin(angle)
|
|
if isCenter:
|
|
xC = xOffset
|
|
yC = yOffset
|
|
else:
|
|
if isExternal:
|
|
xC = xOffset + radius + kOffset
|
|
yC = yOffset + radius + kOffset
|
|
else:
|
|
xC = xOffset + radius - kOffset
|
|
yC = yOffset + radius - kOffset
|
|
xS = xC - ijOffset
|
|
yS = yC - ijOffset
|
|
right = math.radians(0)
|
|
up = math.radians(90)
|
|
left = math.radians(180)
|
|
down = math.radians(270)
|
|
if isExternal:
|
|
dir = [left, down]
|
|
else:
|
|
dir = [right, up]
|
|
if diameter < smallHoleDia:
|
|
sHole = True
|
|
else:
|
|
sHole = False
|
|
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 circle)\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:
|
|
if (sHole and not isExternal) or invalidLeads == 2:
|
|
xlStart = xS + leadInOffset * math.cos(angle)
|
|
ylStart = yS + leadInOffset * math.sin(angle)
|
|
else:
|
|
xlcenter = xS + (leadInOffset * math.cos(angle + dir[0]))
|
|
ylcenter = yS + (leadInOffset * math.sin(angle + dir[0]))
|
|
xlStart = xlcenter + (leadInOffset * math.cos(angle + dir[1]))
|
|
ylStart = ylcenter + (leadInOffset * math.sin(angle + dir[1]))
|
|
outTmp.write(f'G00 X{xlStart:.6f} Y{ylStart:.6f}\n')
|
|
outTmp.write('M03 $0 S1\n')
|
|
if sHole:
|
|
outTmp.write(f'M67 E3 Q{smallHoleSpeed} (reduce feed rate to 60%)\n')
|
|
if (sHole and not isExternal) or invalidLeads == 2:
|
|
outTmp.write(f'G01 X{xS:.6f} Y{yS:.6f}\n')
|
|
else:
|
|
outTmp.write(f'G03 X{xS:.6f} Y{yS:.6f} I{xlcenter - xlStart:.6f} J{ylcenter - ylStart:.6f}\n')
|
|
else:
|
|
outTmp.write(f'G00 X{xS:.6f} Y{yS:.6f}\n')
|
|
outTmp.write('M3 $0 S1\n')
|
|
if sHole:
|
|
outTmp.write(f'M67 E3 Q{smallHoleSpeed} (reduce feed rate to 60%)\n')
|
|
if isExternal:
|
|
outTmp.write(f'G02 X{xS:.6f} Y{yS:.6f} I{ijOffset:.6f} J{ijOffset:.6f}\n')
|
|
else:
|
|
outTmp.write(f'G03 X{xS:.6f} Y{yS:.6f} I{ijOffset:.6f} J{ijOffset:.6f}\n')
|
|
if leadOutOffset and not isOvercut and not (not isExternal and sHole) and not invalidLeads:
|
|
if isExternal:
|
|
dir = [left, up]
|
|
else:
|
|
dir = [right, down]
|
|
xlcenter = xS + (leadOutOffset * math.cos(angle + dir[0]))
|
|
ylcenter = yS + (leadOutOffset * math.sin(angle + dir[0]))
|
|
xlEnd = xlcenter + (leadOutOffset * math.cos(angle + dir[1]))
|
|
ylEnd = ylcenter + (leadOutOffset * math.sin(angle + dir[1]))
|
|
outTmp.write(f'G03 X{xlEnd:.6f} Y{ylEnd:.6f} I{xlcenter - xS:.6f} J{ylcenter - yS:.6f}\n')
|
|
torch = True
|
|
if isOvercut and sHole and not isExternal:
|
|
torch = False
|
|
outTmp.write('M62 P3 (disable torch)\n')
|
|
centerX = xS + ijOffset
|
|
centerY = yS + ijOffset
|
|
cosA = math.cos(overCut / radius)
|
|
sinA = math.sin(overCut / radius)
|
|
cosB = ((xS - centerX) / radius)
|
|
sinB = ((yS - centerY) / radius)
|
|
endX = centerX + radius * ((cosB * cosA) - (sinB * sinA))
|
|
endY = centerY + radius * ((sinB * cosA) + (cosB * sinA))
|
|
outTmp.write(f'G03 X{endX:.6f} Y{endY:.6f} I{ijOffset:.6f} J{ijOffset:.6f}\n')
|
|
outTmp.write('M05 $0\n')
|
|
if sHole:
|
|
outTmp.write('M68 E3 Q0 (reset feed rate to 100%)\n')
|
|
if not torch:
|
|
torch = True
|
|
outTmp.write('M65 P3 (enable torch)\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
|