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'''
slot.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, \
length, width, angle):
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, length = Conv.conv_is_float(length)
if not valid and length:
msg0 = _('LENGTH')
error += '{} {}\n\n'.format(msg0, msg1)
valid, width = Conv.conv_is_float(width)
if not valid and width:
msg0 = _('WIDTH')
error += '{} {}\n\n'.format(msg0, msg1)
valid, angle = Conv.conv_is_float(angle)
if not valid and angle:
msg0 = _('ANGLE')
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 length == 0:
msg = _('LENGTH cannot be zero')
error += '{}\n\n'.format(msg)
if width == 0:
msg = _('WIDTH cannot be zero')
error += '{}\n\n'.format(msg)
if width > length:
msg = _('WIDTH cannot be greater than LENGTH')
error += '{}\n\n'.format(msg)
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:
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 slot)\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 > 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('g0 x{:.6f} y{:.6f}\n'.format(xlStart, ylStart))
outTmp.write('m3 $0 s1\n')
outTmp.write('g3 x{:.6f} y{:.6f} i{:.6f} j{:.6f}\n'.format(xS, yS , xlCentre - xlStart, ylCentre - ylStart))
else:
outTmp.write('g0 x{:.6f} y{:.6f}\n'.format(xS, yS))
outTmp.write('m3 $0 s1\n')
x1 = xS + (length / 2) * math.cos(angle + dir[2])
y1 = yS + (length / 2) * math.sin(angle + dir[2])
outTmp.write('g1 x{:.6f} y{:.6f}\n'.format(x1, y1))
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('g2 x{:.6f} y{:.6f} i{:.6f} j{:.6f}\n'.format(xrEnd, yrEnd, xrCentre - x1, yrCentre - y1))
x2 = xrEnd + length * math.cos(angle + left)
y2 = yrEnd + length * math.sin(angle + left)
outTmp.write('g1 x{:.6f} y{:.6f}\n'.format(x2, y2))
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('g2 x{:.6f} y{:.6f} i{:.6f} j{:.6f}\n'.format(xrEnd, yrEnd, xrCentre - x2, yrCentre - y2))
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('g3 x{:.6f} y{:.6f} i{:.6f} j{:.6f}\n'.format(xrEnd, yrEnd, xrCentre - x1, yrCentre - y1))
x2 = xrEnd + length * math.cos(angle + right)
y2 = yrEnd + length * math.sin(angle + right)
outTmp.write('g1 x{:.6f} y{:.6f}\n'.format(x2, y2))
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('g3 x{:.6f} y{:.6f} i{:.6f} j{:.6f}\n'.format(xrEnd, yrEnd, xrCentre - x2, yrCentre - y2))
outTmp.write('g1 x{:.6f} y{:.6f}\n'.format(xS, yS))
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('g3 x{:.6f} y{:.6f} i{:.6f} j{:.6f}\n'.format(xlEnd, ylEnd , xlCentre - xS, ylCentre - yS))
outTmp.write('m5 $0\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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