def make_hole(diameter, length):
pos = [ 0.0 ]
diam = [ diameter ]
radius = diameter*0.5
n = 4
for i in range(0,n):
x = math.pi/2 * float(i)/n
pos.append(length+radius*(math.sin(x)-1))
diam.append(diameter*math.cos(x))
prof = profile.Profile(pos,diam,diam)
hole = shape.extrude_profile(prof)
return hole
def make_hole(diameter, length):
pos = [0.0]
diam = [diameter]
radius = diameter * 0.5
n = 4
for i in range(0, n):
x = math.pi / 2 * float(i) / n
pos.append(length + radius * (math.sin(x) - 1))
diam.append(diameter * math.cos(x))
prof = profile.Profile(pos, diam, diam)
hole = shape.extrude_profile(prof)
return hole
def render(self, bit_diameter, bit_pad):
xsize = self.xsize
ysize = self.ysize
a = bit_pad
b = bit_pad + self.zsize/10.0
pad_cone = shape.extrude_profile(profile.Profile([0,self.zsize],[a*2,b*2],[a*2,b*2]), cross_section=lambda d: shape.circle(d,16))
pad_cylinder = shape.extrude_profile(profile.Profile([0,self.zsize+bit_diameter],[a*2,a*2],[a*2,a*2]), cross_section=lambda d: shape.circle(d,16))
pad = 0.5 + self.zsize/10.0
upper = shape.block(-pad,xsize+pad,-pad,ysize+pad,0,self.zsize)
print 'Cut holes'
for i,(x,y,packable) in enumerate(self.items):
if packable.use_upper:
flat = packable.mask.to_3()
flat.move(x,y,0)
minsum = flat.minkowski_sum(pad_cone)
upper.remove( minsum )
print 'Put things in them'
for x,y,packable in self.items:
if packable.use_upper:
temp = packable.shapes[0].copy()
temp.move(x,y,0)
upper.add(temp)
bol = int(self.xsize / 10.0)
bol_width = 1.0
# 0.5 seemed to allow shifting on a sop flute
bol_height = 1.0
# 0.5 was too low, middle piece tore loose in final pass of
# contour finishing (x-scan of horizontal-like surfaces)
xmins = [ x for x,y,packable in self.items ]
xmaxs = [ x+packable.extent.xmax for x,y,packable in self.items ]
margin = bol_width+bit_diameter+0.25
potential_bols = [ ((i+0.5)*xsize/bol, 0,ysize) for i in xrange(bol) ]
bols = [ ]
while potential_bols:
pos, y_low, y_high = potential_bols.pop()
for i, (x,y,packable) in enumerate(self.items):
if pos-margin <= xmins[i] <= pos+margin or \
pos-margin <= xmaxs[i] <= pos+margin:
low = y-bit_diameter
high = y+packable.extent.ymax+bit_diameter
if low <= y_low and y_high <= high:
break
elif y_low < low and high < y_high:
potential_bols.append((pos, y_low, low))
potential_bols.append((pos, high, y_high))
break
elif y_low < low < y_high <= high:
potential_bols.append((pos, y_low, low))
break
elif low < y_low < high <= y_high:
potential_bols.append((pos, high, y_high))
break
else:
bols.append((pos,y_low,y_high))
for pos, y_low, y_high in bols:
upper.add(shape.block(
pos-bol_width*0.5, pos+bol_width*0.5,
y_low, y_high,
#0,ysize,
#-bit_diameter*0.6, bol_height,
0,bol_height,
))
print 'Underside'
# Cut the bottom of upper with lower, to depth bit_diameter
lower = shape.block(-pad,xsize+pad,-pad,ysize+pad,bit_diameter,self.zsize)
lower.add(upper)
print 'Remove bores'
for x,y,packable in self.items:
temp = packable.shapes[1].copy()
temp.move(x,y,0)
flat = packable.mask.to_3()
flat.move(x,y,0)
minsum = flat.minkowski_sum(pad_cylinder)
temp.clip(minsum)
lower.remove(temp)
lower.rotate(0,1,0, 180)
return lower, upper
def run(self):
zsize = self.thickness
pad = self.wall
diameter = zsize - pad*2
self.log.log('Thickness: %.1fmm\n' % zsize)
self.log.log('Min wall thickness: %.1fmm\n' % pad)
self.log.log('Hole diameter: %.1fmm\n' % diameter)
negatives = [ ]
lengths = [ ]
xs = [ ]
for i, note in enumerate(SCALE):
print 'Make hole %d / %d' % (i+1,len(SCALE))
length = design.wavelength(note,self.transpose)*0.25 + LENGTH_CORRECTION*diameter
x = i*(diameter+pad)
lengths.append(length)
xs.append(x)
hole = make_hole(diameter, length)
hole.move(x,0,0)
negatives.append(hole)
string_hole_diameter = diameter*1.5
string_hole_loop = shape.circle(string_hole_diameter)
string_hole = shape.extrusion([-zsize,zsize],[string_hole_loop,string_hole_loop])
string_hole.rotate(1,0,0, 90)
xlow = xs[0]-zsize
#xmid = xs[-1]*0.5
xhigh = xs[-1]+zsize
zhigh = lengths[0]+zsize*0.5
#zmid = max(lengths[-1]+zsize*0.5, zhigh-(xhigh-xmid))
trim = min(xhigh-xlow,zhigh) * 0.5
#string_x = (xmid+xhigh)*0.5 - diameter
#string_z = (zmid+zhigh)*0.5 - diameter
#string_z = lengths[3] + diameter*2
#string_x = xhigh-trim*0.5-diameter
#string_z = zhigh-trim*0.5-diameter
a = math.pi*-5/8
d = diameter * 1.5
string_x = xhigh-trim + math.cos(a)*d
string_z = zhigh + math.sin(a)*d
string_hole.move(string_x,0,string_z)
#p = pad*0.5
#loop = shape.Loop([(0,p),(p*2,-p),(-p*2,p)])
#r = diameter-pad
#stick = shape.extrusion([-r,r],[loop,loop])
#
#for i in xrange(-1,len(SCALE)+2):
# for j in xrange(int(zhigh / (diameter+pad))+1):
# x = (i-0.5)*(diameter+pad)
# z = r + j*(diameter+pad)
# c = stick.copy()
# if (i^j)&1:
# c.rotate(0,1,0,90)
# c.move(x,-diameter*0.5-pad,z)
# negatives.append(c)
loop = shape.Loop([
(xlow,0),
(xhigh,0),
(xhigh,zhigh-trim),
(xhigh-trim,zhigh),
(xlow,zhigh)
])
bev = zsize / 4.0
loop_bevel = shape.Loop([
(xlow,bev),
(xhigh,bev),
(xhigh,zhigh-trim),
(xhigh-trim,zhigh),
(xlow,zhigh)
])
#mask = loop.mask(RES)
#amount = diameter * 0.5
#op = shape.circle(amount).mask(RES)
#mask = mask.open(op)
#loop = mask.trace(RES)[0]
#sloop = mask.erode(op).trace(RES)[0]
#z1 = zsize*0.5-amount
z2 = zsize*0.5
#positive = shape.extrusion([-z2,z2],[loop,loop])
positive = shape.extrusion([-z2,-z2+bev,z2-bev,z2],[loop_bevel,loop,loop,loop_bevel])
positive.rotate(1,0,0,90)
negative = string_hole.copy()
for i, item in enumerate(negatives):
print 'Merge %d / %d' % (i+1,len(negatives))
negative.add(item)
del negatives
instrument = positive.copy()
print 'Remove holes from instrument'
instrument.remove(negative)
del positive
del negative
instrument.rotate(1,0,0,90)
extent = instrument.extent()
copy = instrument.copy()
copy.rotate(0,0,1,-45)
cextent = copy.extent()
copy.move(-(cextent.xmin+cextent.xmax)*0.5,
-(cextent.ymin+cextent.ymax)*0.5,
-cextent.zmin)
self.save(copy,'instrument')
del copy
top = shape.block(
extent.xmin-1,extent.xmax+1,
extent.ymin-1,extent.ymax+1,
0,extent.zmax+1
)
bottom = shape.block(
extent.xmin-1,extent.xmax+1,
extent.ymin-1,extent.ymax+1,
extent.zmin-1,0
)
top.clip(instrument)
bottom.clip(instrument)
top.rotate(1,0,0,180)
top.move(0,4,0)
bottom.add(top)
pattern = bottom
del top
del bottom
pattern.move(0,0,z2)
pattern.rotate(0,0,1, -90)
bit_pad = 4.0
extra_depth = 3.0
a = bit_pad
b = bit_pad + z2/10.0
pad_cone = shape.extrude_profile(profile.Profile(
[-extra_depth,0,z2],[a*2,a*2,b*2]
),
cross_section=lambda d: shape.circle(d,16))
extra = b + 0.5
extent = pattern.extent()
mill = shape.block(
extent.xmin-extra, extent.xmax+extra,
extent.ymin-extra, extent.ymax+extra,
-extra_depth, z2,
)
mill.remove( pattern.polygon_mask().to_3().minkowski_sum(pad_cone) )
mill.add( pattern )
del pad_cone
del pattern
self.save(mill, 'mill')
def run(self):
zsize = self.thickness
pad = self.wall
diameter = zsize - pad * 2
self.log.log('Thickness: %.1fmm\n' % zsize)
self.log.log('Min wall thickness: %.1fmm\n' % pad)
self.log.log('Hole diameter: %.1fmm\n' % diameter)
negatives = []
lengths = []
xs = []
for i, note in enumerate(SCALE):
print 'Make hole %d / %d' % (i + 1, len(SCALE))
length = design.wavelength(
note, self.transpose) * 0.25 + LENGTH_CORRECTION * diameter
x = i * (diameter + pad)
lengths.append(length)
xs.append(x)
hole = make_hole(diameter, length)
hole.move(x, 0, 0)
negatives.append(hole)
string_hole_diameter = diameter * 1.5
string_hole_loop = shape.circle(string_hole_diameter)
string_hole = shape.extrusion([-zsize, zsize],
[string_hole_loop, string_hole_loop])
string_hole.rotate(1, 0, 0, 90)
xlow = xs[0] - zsize
#xmid = xs[-1]*0.5
xhigh = xs[-1] + zsize
zhigh = lengths[0] + zsize * 0.5
#zmid = max(lengths[-1]+zsize*0.5, zhigh-(xhigh-xmid))
trim = min(xhigh - xlow, zhigh) * 0.5
#string_x = (xmid+xhigh)*0.5 - diameter
#string_z = (zmid+zhigh)*0.5 - diameter
#string_z = lengths[3] + diameter*2
#string_x = xhigh-trim*0.5-diameter
#string_z = zhigh-trim*0.5-diameter
a = math.pi * -5 / 8
d = diameter * 1.5
string_x = xhigh - trim + math.cos(a) * d
string_z = zhigh + math.sin(a) * d
string_hole.move(string_x, 0, string_z)
#p = pad*0.5
#loop = shape.Loop([(0,p),(p*2,-p),(-p*2,p)])
#r = diameter-pad
#stick = shape.extrusion([-r,r],[loop,loop])
#
#for i in xrange(-1,len(SCALE)+2):
# for j in xrange(int(zhigh / (diameter+pad))+1):
# x = (i-0.5)*(diameter+pad)
# z = r + j*(diameter+pad)
# c = stick.copy()
# if (i^j)&1:
# c.rotate(0,1,0,90)
# c.move(x,-diameter*0.5-pad,z)
# negatives.append(c)
loop = shape.Loop([(xlow, 0), (xhigh, 0), (xhigh, zhigh - trim),
(xhigh - trim, zhigh), (xlow, zhigh)])
bev = zsize / 4.0
loop_bevel = shape.Loop([(xlow, bev), (xhigh, bev),
(xhigh, zhigh - trim), (xhigh - trim, zhigh),
(xlow, zhigh)])
#mask = loop.mask(RES)
#amount = diameter * 0.5
#op = shape.circle(amount).mask(RES)
#mask = mask.open(op)
#loop = mask.trace(RES)[0]
#sloop = mask.erode(op).trace(RES)[0]
#z1 = zsize*0.5-amount
z2 = zsize * 0.5
#positive = shape.extrusion([-z2,z2],[loop,loop])
positive = shape.extrusion([-z2, -z2 + bev, z2 - bev, z2],
[loop_bevel, loop, loop, loop_bevel])
positive.rotate(1, 0, 0, 90)
negative = string_hole.copy()
for i, item in enumerate(negatives):
print 'Merge %d / %d' % (i + 1, len(negatives))
negative.add(item)
del negatives
instrument = positive.copy()
print 'Remove holes from instrument'
instrument.remove(negative)
del positive
del negative
instrument.rotate(1, 0, 0, 90)
extent = instrument.extent()
copy = instrument.copy()
copy.rotate(0, 0, 1, -45)
cextent = copy.extent()
copy.move(-(cextent.xmin + cextent.xmax) * 0.5,
-(cextent.ymin + cextent.ymax) * 0.5, -cextent.zmin)
self.save(copy, 'instrument')
del copy
top = shape.block(extent.xmin - 1, extent.xmax + 1, extent.ymin - 1,
extent.ymax + 1, 0, extent.zmax + 1)
bottom = shape.block(extent.xmin - 1, extent.xmax + 1, extent.ymin - 1,
extent.ymax + 1, extent.zmin - 1, 0)
top.clip(instrument)
bottom.clip(instrument)
top.rotate(1, 0, 0, 180)
top.move(0, 4, 0)
bottom.add(top)
pattern = bottom
del top
del bottom
pattern.move(0, 0, z2)
pattern.rotate(0, 0, 1, -90)
bit_pad = 4.0
extra_depth = 3.0
a = bit_pad
b = bit_pad + z2 / 10.0
pad_cone = shape.extrude_profile(
profile.Profile([-extra_depth, 0, z2], [a * 2, a * 2, b * 2]),
cross_section=lambda d: shape.circle(d, 16))
extra = b + 0.5
extent = pattern.extent()
mill = shape.block(
extent.xmin - extra,
extent.xmax + extra,
extent.ymin - extra,
extent.ymax + extra,
-extra_depth,
z2,
)
mill.remove(pattern.polygon_mask().to_3().minkowski_sum(pad_cone))
mill.add(pattern)
del pad_cone
del pattern
self.save(mill, 'mill')
def render(self, bit_diameter, bit_pad):
xsize = self.xsize
ysize = self.ysize
a = bit_pad
b = bit_pad + self.zsize / 10.0
pad_cone = shape.extrude_profile(
profile.Profile([0, self.zsize], [a * 2, b * 2], [a * 2, b * 2]),
cross_section=lambda d: shape.circle(d, 16))
pad_cylinder = shape.extrude_profile(
profile.Profile([0, self.zsize + bit_diameter], [a * 2, a * 2],
[a * 2, a * 2]),
cross_section=lambda d: shape.circle(d, 16))
pad = 0.5 + self.zsize / 10.0
upper = shape.block(-pad, xsize + pad, -pad, ysize + pad, 0,
self.zsize)
print 'Cut holes'
for i, (x, y, packable) in enumerate(self.items):
if packable.use_upper:
flat = packable.mask.to_3()
flat.move(x, y, 0)
minsum = flat.minkowski_sum(pad_cone)
upper.remove(minsum)
print 'Put things in them'
for x, y, packable in self.items:
if packable.use_upper:
temp = packable.shapes[0].copy()
temp.move(x, y, 0)
upper.add(temp)
bol = int(self.xsize / 10.0)
bol_width = 1.0
# 0.5 seemed to allow shifting on a sop flute
bol_height = 1.0
# 0.5 was too low, middle piece tore loose in final pass of
# contour finishing (x-scan of horizontal-like surfaces)
xmins = [x for x, y, packable in self.items]
xmaxs = [x + packable.extent.xmax for x, y, packable in self.items]
margin = bol_width + bit_diameter + 0.25
potential_bols = [((i + 0.5) * xsize / bol, 0, ysize)
for i in xrange(bol)]
bols = []
while potential_bols:
pos, y_low, y_high = potential_bols.pop()
for i, (x, y, packable) in enumerate(self.items):
if pos-margin <= xmins[i] <= pos+margin or \
pos-margin <= xmaxs[i] <= pos+margin:
low = y - bit_diameter
high = y + packable.extent.ymax + bit_diameter
if low <= y_low and y_high <= high:
break
elif y_low < low and high < y_high:
potential_bols.append((pos, y_low, low))
potential_bols.append((pos, high, y_high))
break
elif y_low < low < y_high <= high:
potential_bols.append((pos, y_low, low))
break
elif low < y_low < high <= y_high:
potential_bols.append((pos, high, y_high))
break
else:
bols.append((pos, y_low, y_high))
for pos, y_low, y_high in bols:
upper.add(
shape.block(
pos - bol_width * 0.5,
pos + bol_width * 0.5,
y_low,
y_high,
#0,ysize,
#-bit_diameter*0.6, bol_height,
0,
bol_height,
))
print 'Underside'
# Cut the bottom of upper with lower, to depth bit_diameter
lower = shape.block(-pad, xsize + pad, -pad, ysize + pad, bit_diameter,
self.zsize)
lower.add(upper)
print 'Remove bores'
for x, y, packable in self.items:
temp = packable.shapes[1].copy()
temp.move(x, y, 0)
flat = packable.mask.to_3()
flat.move(x, y, 0)
minsum = flat.minkowski_sum(pad_cylinder)
temp.clip(minsum)
lower.remove(temp)
lower.rotate(0, 1, 0, 180)
return lower, upper