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'''
circle.py
Copyright (C) 2020, 2021, 2022 Phillip A Carter
Copyright (C) 2020, 2021, 2022 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('{}'.format(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 += '{} {}\n\n'.format(msg0, msg1)
valid, yOffset = Conv.conv_is_float(yOffset)
if not valid and yOffset:
msg0 = _('Y ORIGIN')
error += '{} {}\n\n'.format(msg0, msg1)
valid, leadinLength = Conv.conv_is_float(leadinLength)
if not valid and leadinLength :
msg0 = _('LEAD IN')
error += '{} {}\n\n'.format(msg0, msg1)
valid, leadoutLength = Conv.conv_is_float(leadoutLength)
if not valid and leadoutLength:
msg0 = _('LEAD OUT')
error += '{} {}\n\n'.format(msg0, msg1)
valid, diameter = Conv.conv_is_float(diameter)
if not valid and diameter:
msg0 = _('DIAMETER')
error += '{} {}\n\n'.format(msg0, msg1)
valid, overCut = Conv.conv_is_float(overCut)
if not valid and overCut:
msg0 = _('OC LENGTH')
error += '{} {}\n\n'.format(msg0, msg1)
valid, kerfWidth = Conv.conv_is_float(kerfWidth)
if not valid:
msg = _('Invalid Kerf Width entry in material')
error += '{}\n\n'.format(msg)
if error:
return error
if diameter == 0:
msg = _('DIAMETER cannot be zero')
error += '{}\n\n'.format(msg)
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:
if '(new conversational file)' in line:
if('\\n') in preAmble:
outNgc.write('(preamble)\n')
for l in preAmble.split('\\n'):
outNgc.write('{}\n'.format(l))
else:
outNgc.write('\n{} (preamble)\n'.format(preAmble))
break
elif '(postamble)' in line:
break
elif 'm2' in line.lower() or 'm30' in line.lower():
continue
outNgc.write(line)
outTmp.write('\n(conversational circle)\n')
outTmp.write(';using material #{}: {}\n'.format(matNumber, matName))
outTmp.write('M190 P{}\n'.format(matNumber))
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('g0 x{:.6f} y{:.6f}\n'.format(xlStart, ylStart))
outTmp.write('m3 $0 s1\n')
if sHole:
outTmp.write('M67 E3 Q{} (reduce feed rate to 60%)\n'.format(smallHoleSpeed))
if (sHole and not isExternal) or invalidLeads == 2:
outTmp.write('g1 x{:.6f} y{:.6f}\n'.format(xS, yS))
else:
outTmp.write('g3 x{:.6f} y{:.6f} i{:.6f} j{:.6f}\n'.format(xS, yS, xlcenter - xlStart, ylcenter - ylStart))
else:
outTmp.write('g0 x{:.6f} y{:.6f}\n'.format(xS, yS))
outTmp.write('m3 $0 s1\n')
if sHole:
outTmp.write('M67 E3 Q{} (reduce feed rate to 60%)\n'.format(smallHoleSpeed))
if isExternal:
outTmp.write('g2 x{0:.6f} y{1:.6f} i{2:.6f} j{2:.6f}\n'.format(xS, yS, ijOffset))
else:
outTmp.write('g3 x{0:.6f} y{1:.6f} i{2:.6f} j{2:.6f}\n'.format(xS, yS, ijOffset))
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('g3 x{:.6f} y{:.6f} i{:.6f} j{:.6f}\n'.format(xlEnd, ylEnd, xlcenter - xS, ylcenter - yS))
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('g3 x{0:.6f} y{1:.6f} i{2:.6f} j{2:.6f}\n'.format(endX, endY, ijOffset))
outTmp.write('m5 $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('(postamble)\n')
for l in postAmble.split('\\n'):
outNgc.write('{}\n'.format(l))
else:
outNgc.write('\n{} (postamble)\n'.format(postAmble))
outNgc.write('m2\n')
outNgc.close()
return False
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