josch/lego-parts-generator
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more optimizations

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josch 2013-07-17 20:11:38 +02:00
parent a4dcde887a
commit b4559841ad
1 changed files with 135 additions and 157 deletions
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200
partsgen.py
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@ -133,12 +133,17 @@ def drawstud(studsx, studsz, x, z, lines, triangles, quads):
def render_part(part):
partid, parttext = part[:2]
###################################################
# parse part text into usable information #
###################################################
m = re.match(r"(?P<type>[A-Za-z0-9 ]+?) (?P<studsz>\d+)"+
r" x (?P<studsx>\d+)(?: x (?P<height>\d+(?:/\d+)?))?"+
r"(?: (?P<corner>Corner)| "+
r"(?P<slope>(?:Double|Triple|Inverted|Concave|Convex| |/)+))?",
parttext)
# sanity checks
###################################################
# sanity checks #
###################################################
if m.group('type') not in ['Brick', 'Plate', 'Slope Brick 18',
'Slope Brick 31', 'Slope Brick 33', 'Slope Brick 45',
'Slope Brick 65', 'Slope Brick 75']:
@ -153,6 +158,9 @@ def render_part(part):
if m.group('corner') and (m.group('studsx') != m.group('studsz')):
print "corners must be squares"
exit(1)
###################################################
# set up data structures #
###################################################
lines = list()
triangles = list()
quads = list()
@ -172,8 +180,12 @@ def render_part(part):
height = 1
# convert plate height to LDraw units
height *= 8
if m.group('type') in ['Brick', 'Plate']:
###################################################
# handle bricks, plates and slope brick 31 #
###################################################
if m.group('type') in ['Brick', 'Plate', 'Slope Brick 31']:
# draw studs
if m.group('type') != 'Slope Brick 31':
for z in range(studsz):
for x in range(studsx):
if not m.group('corner') or z >= studsz/2 or x >= studsx/2:
@ -184,10 +196,14 @@ def render_part(part):
coords = [(0,0),(1,0),(1,-1),(-1,-1),(-1,1),(0,1)]
else:
coords = [(1,1),(1,-1),(-1,-1),(-1,1)]
outertopcoords = [(studsx*10*x, 0, studsz*10*z) for x,z in coords]
outerbottomcoords = [(x, height, z) for x,y,z in outertopcoords]
# walls are 4 LDU thick, use sign() in case x or y are zero
if m.group('type') == 'Slope Brick 31':
outertopcoords = [(studsx*10*x, 0 if z == 1 else height-4, studsz*10*z) for x,z in coords]
innertopcoords = [(studsx*10*x-sign(x)*4, height-4, studsz*10*z-sign(z)*4) for x,z in coords]
else:
outertopcoords = [(studsx*10*x, 0, studsz*10*z) for x,z in coords]
innertopcoords = [(studsx*10*x-sign(x)*4, 4, studsz*10*z-sign(z)*4) for x,z in coords]
outerbottomcoords = [(x, height, z) for x,y,z in outertopcoords]
innerbottomcoords = [(x, height, z) for x,y,z in innertopcoords]
# write outer top plate and lines
# in case of a corner draw two trapezoids, otherwise draw a rectangle
@ -220,18 +236,25 @@ def render_part(part):
quads.append((p1, p2, p4, p3))
lines.append((p1, p2))
lines.append((p3, p4))
elif m.group('type') == 'Slope Brick 31':
# create top, bottom, inner and outer rectangles
###################################################
# handle slopes #
###################################################
elif m.group('type') in ['Slope Brick 18', 'Slope Brick 33',
'Slope Brick 45', 'Slope Brick 65', 'Slope Brick 75']:
# draw studs (draw an L if double concave)
coordsL = [(0,0),(0,-1),(-1,-1),(-1,1),(1,1),(1,0)]
coords = [(-1,-1),(-1,1),(1,1),(1,-1)]
###################################################
# handle double, triple slopes #
###################################################
if m.group('slope') in ['Double', 'Triple', 'Double Concave / Double Convex']:
coords = [(1,1),(1,-1),(-1,-1),(-1,1)]
outertopcoords = [(studsx*10*x, 0 if z == 1 else height-4, studsz*10*z) for x,z in coords]
outerbottomcoords = [(x, height, z) for x,y,z in outertopcoords]
# create top, bottom, inner and outer rectangles
outertopcoords = [(studsx*10*x, 24-4, studsz*10*z) for x,z in coords]
outerbottomcoords = [(x, 24, z) for x,y,z in outertopcoords]
# walls are 4 LDU thick, use sign() in case x or y are zero
innertopcoords = [(studsx*10*x-sign(x)*4, height-4, studsz*10*z-sign(z)*4) for x,z in coords]
innerbottomcoords = [(x, height, z) for x,y,z in innertopcoords]
# write outer top plate and lines
quads.append(outertopcoords)
for p1, p2 in wrap(outertopcoords):
lines.append((p1, p2))
innertopcoords = [(studsx*10*x-sign(x)*4, 24-4, studsz*10*z-sign(z)*4) for x,z in coords]
innerbottomcoords = [(x, 24, z) for x,y,z in innertopcoords]
# outer sides and lines
for (p1, p2), (p3, p4) in zip(wrap(outertopcoords), wrap(outerbottomcoords)):
quads.append((p1,p2,p4,p3))
@ -249,19 +272,22 @@ def render_part(part):
quads.append((p1, p2, p4, p3))
lines.append((p1, p2))
lines.append((p3, p4))
elif m.group('type') in ['Slope Brick 18', 'Slope Brick 33',
'Slope Brick 45', 'Slope Brick 65', 'Slope Brick 75']:
# draw studs (draw an L if double concave)
coordsL = [(0,0),(0,-1),(-1,-1),(-1,1),(1,1),(1,0)]
coords = [(-1,-1),(-1,1),(1,1),(1,-1)]
if 'Double' == m.group('slope'):
# create top, bottom, inner and outer rectangles
coords = [(1,1),(1,-1),(-1,-1),(-1,1)]
outertopcoords = [(studsx*10*x, 24-4, studsz*10*z) for x,z in coords]
outerbottomcoords = [(x, 24, z) for x,y,z in outertopcoords]
# walls are 4 LDU thick, use sign() in case x or y are zero
innertopcoords = [(studsx*10*x-sign(x)*4, 24-4, studsz*10*z-sign(z)*4) for x,z in coords]
innerbottomcoords = [(x, 24, z) for x,y,z in innertopcoords]
###################################################
# handle triple slopes #
###################################################
if 'Triple' == m.group('slope'):
tip = (0,0,studsz*10)
# write outer top lines
for p1, p2 in wrap(outertopcoords)[:-1]:
lines.append((p1, p2))
# write out slopes and lines
for p1, p2 in wrap(outertopcoords):
triangles.append([p1,p2,tip])
lines.append((p1,tip))
###################################################
# handle double slopes #
###################################################
elif 'Double' == m.group('slope'):
if m.group('type') == 'Slope Brick 45':
ridge = [(studsx*10,0,0),(-studsx*10,0,0)]
elif m.group('type') == 'Slope Brick 33':
@ -272,23 +298,6 @@ def render_part(part):
# write outer top lines
lines.append(outertopcoords[1:3])
lines.append(outertopcoords[:1]+outertopcoords[-1:])
# outer sides and lines
for (p1, p2), (p3, p4) in zip(wrap(outertopcoords), wrap(outerbottomcoords)):
quads.append((p1,p2,p4,p3))
lines.append((p1,p3))
# write inner top plate and lines
quads.append(innertopcoords)
for p1, p2 in wrap(innertopcoords):
lines.append((p1, p2))
# inner sides and lines
for (p1, p2), (p3, p4) in zip(wrap(innertopcoords), wrap(innerbottomcoords)):
quads.append((p1,p2,p4,p3))
lines.append((p1,p3))
# write out bottom with trapezoids and lines
for (p1, p2), (p3, p4) in zip(wrap(innerbottomcoords), wrap(outerbottomcoords)):
quads.append((p1, p2, p4, p3))
lines.append((p1, p2))
lines.append((p3, p4))
# draw gables
triangles.append(ridge[:1]+outertopcoords[:2])
triangles.append(ridge[-1:]+outertopcoords[2:])
@ -301,47 +310,10 @@ def render_part(part):
lines.append(ridge[:1]+outertopcoords[1:2])
lines.append(ridge[-1:]+outertopcoords[-1:])
lines.append(ridge[-1:]+outertopcoords[2:3])
elif 'Triple' == m.group('slope'):
# create top, bottom, inner and outer rectangles
coords = [(1,1),(1,-1),(-1,-1),(-1,1)]
outertopcoords = [(studsx*10*x, 24-4, studsz*10*z) for x,z in coords]
outerbottomcoords = [(x, 24, z) for x,y,z in outertopcoords]
# walls are 4 LDU thick, use sign() in case x or y are zero
innertopcoords = [(studsx*10*x-sign(x)*4, 24-4, studsz*10*z-sign(z)*4) for x,z in coords]
innerbottomcoords = [(x, 24, z) for x,y,z in innertopcoords]
tip = (0,0,studsz*10)
# write outer top lines
for p1, p2 in wrap(outertopcoords)[:-1]:
lines.append((p1, p2))
# outer sides and lines
for (p1, p2), (p3, p4) in zip(wrap(outertopcoords), wrap(outerbottomcoords)):
quads.append((p1,p2,p4,p3))
lines.append((p1,p3))
# write inner top plate and lines
quads.append(innertopcoords)
for p1, p2 in wrap(innertopcoords):
lines.append((p1, p2))
# inner sides and lines
for (p1, p2), (p3, p4) in zip(wrap(innertopcoords), wrap(innerbottomcoords)):
quads.append((p1,p2,p4,p3))
lines.append((p1,p3))
# write out bottom with trapezoids and lines
for (p1, p2), (p3, p4) in zip(wrap(innerbottomcoords), wrap(outerbottomcoords)):
quads.append((p1, p2, p4, p3))
lines.append((p1, p2))
lines.append((p3, p4))
# write out slopes and lines
for p1, p2 in wrap(outertopcoords):
triangles.append([p1,p2,tip])
lines.append((p1,tip))
###################################################
# handle double concave / double convex slopes #
###################################################
elif 'Double Concave / Double Convex' == m.group('slope'):
# create top, bottom, inner and outer rectangles
coords = [(1,1),(1,-1),(-1,-1),(-1,1)]
outertopcoords = [(studsx*10*x, 24-4, studsz*10*z) for x,z in coords]
outerbottomcoords = [(x, 24, z) for x,y,z in outertopcoords]
# walls are 4 LDU thick, use sign() in case x or y are zero
innertopcoords = [(studsx*10*x-sign(x)*4, 24-4, studsz*10*z-sign(z)*4) for x,z in coords]
innerbottomcoords = [(x, 24, z) for x,y,z in innertopcoords]
if m.group('type') != 'Slope Brick 45':
print "unsupported slope type for double concave / double convex"
exit(1)
@ -350,23 +322,6 @@ def render_part(part):
# write outer top lines (eaves)
lines.append(outertopcoords[1:3])
lines.append(outertopcoords[:2])
# outer sides and lines
for (p1, p2), (p3, p4) in zip(wrap(outertopcoords), wrap(outerbottomcoords)):
quads.append((p1,p2,p4,p3))
lines.append((p1,p3))
# write inner top plate and lines
quads.append(innertopcoords)
for p1, p2 in wrap(innertopcoords):
lines.append((p1, p2))
# inner sides and lines
for (p1, p2), (p3, p4) in zip(wrap(innertopcoords), wrap(innerbottomcoords)):
quads.append((p1,p2,p4,p3))
lines.append((p1,p3))
# write out bottom with trapezoids and lines
for (p1, p2), (p3, p4) in zip(wrap(innerbottomcoords), wrap(outerbottomcoords)):
quads.append((p1, p2, p4, p3))
lines.append((p1, p2))
lines.append((p3, p4))
# draw gables
triangles.append(ridge1[-1:]+outertopcoords[2:])
triangles.append(ridge2[:1]+outertopcoords[:1]+outertopcoords[-1:])
@ -386,6 +341,9 @@ def render_part(part):
# draw valley and hip
lines.append(((0,0,0),outertopcoords[-1]))
lines.append(((0,0,0),outertopcoords[1]))
###################################################
# handle all other slopes #
###################################################
else:
if m.group('slope') in ['Inverted', 'Inverted Double Convex']:
for z in range(studsz):
@ -401,7 +359,9 @@ def render_part(part):
else:
for x in range(studsx):
drawstud(studsx, studsz, x, 0, lines, triangles, quads)
# create top, bottom, inner and outer rectangles
###################################################
# create top, bottom, inner and outer rectangles #
###################################################
if m.group('slope') in ['Double Convex', 'Inverted Double Convex']:
outertopcoords = [((x-studsx+1)*10, 0, (z+studsz-1)*10) for x,z in coords]
outerbottomcoords = [(studsx*10*x, height, studsz*10*z) for x,z in coords] # big
@ -449,7 +409,9 @@ def render_part(part):
[(x,4,z) for x,y,z in innertopcoords],
[(x,height,z) for x,y,z in innertopcoords])
noseup, nosedown = [(x,0,z) for x,y,z in nosedown], [(x,4,z) for x,y,z in noseup]
# outer sides and lines
###################################################
# create outer sides and lines #
###################################################
if m.group('slope') in ['Double Convex', 'Inverted Double Convex']:
for (p1, p2), (p3, p4) in zip(wrap(outertopcoords)[:2], wrap(helpercoords)[:2]):
quads.append((p1,p2,p4,p3))
@ -465,13 +427,17 @@ def render_part(part):
quads.append((p1,p2,p4,p3))
for (p1, p2), (p3, p4) in zip(wrap(outertopcoords)[1:3], wrap(helpercoords)[1:3]):
lines.append((p1,p3))
# draw nose
###################################################
# draw nose #
###################################################
if m.group('slope') in ['Inverted Double Convex', 'Double Convex']:
quads.append(noseup1+[nosedown1[1]]+[nosedown1[0]])
quads.append(noseup2+[nosedown2[1]]+[nosedown2[0]])
elif m.group('slope') != 'Double Concave':
quads.append(noseup+[nosedown[1]]+[nosedown[0]])
# draw sides and lines to the nose
###################################################
# draw sides and lines to the nose #
###################################################
if m.group('slope') in ['Double Convex', 'Inverted Double Convex']:
quads.append(outertopcoords[-2:-1]+helpercoords[-2:-1]+noseup2[:1]+nosedown2[:1])
quads.append(outertopcoords[:1]+helpercoords[:1]+noseup1[:1]+nosedown1[:1])
@ -491,7 +457,9 @@ def render_part(part):
else:
lines.append(noseup[:1]+nosedown[:1])
lines.append(noseup[-1:]+nosedown[-1:])
# write inner top plate and lines
###################################################
# write inner top plate and lines #
###################################################
if m.group('slope') == 'Double Concave':
quads.append(innertopcoords[:4])
quads.append(innertopcoords[3:]+innertopcoords[:1])
@ -499,7 +467,9 @@ def render_part(part):
quads.append(innertopcoords)
for p1, p2 in wrap(innertopcoords):
lines.append((p1, p2))
# inner sides and lines
###################################################
# inner sides and lines #
###################################################
if m.group('slope') == 'Double Concave':
# the quadrilateral sides
for (p1, p2), (p3, p4) in zip(wrap(innertopcoords)[1:5],
@ -517,7 +487,9 @@ def render_part(part):
for (p1, p2), (p3, p4) in zip(wrap(innertopcoords), wrap(innerbottomcoords)):
quads.append((p1,p2,p4,p3))
lines.append((p1,p3))
# draw slope and lines around it
###################################################
# draw slope and lines around it #
###################################################
if m.group('slope') in ['Double Convex', 'Inverted Double Convex']:
if m.group('slope') == 'Inverted Double Convex':
noseup1, nosedown1, noseup2, nosedown2 = nosedown1, noseup1, nosedown2, noseup2
@ -541,15 +513,21 @@ def render_part(part):
lines.append(noseup[:1]+outertopcoords[:1])
lines.append(noseup[-1:]+outertopcoords[-1:])
lines.append(noseup[:1]+noseup[-1:])
# for drawing the top and bottom, switch the coords if necessary
###################################################
# for drawing top/bottom, switch the coords #
###################################################
if m.group('slope') in ['Inverted Double Convex', 'Inverted']:
outertopcoords, outerbottomcoords = outerbottomcoords, outertopcoords
# write out bottom with trapezoids and lines
###################################################
# write out bottom with trapezoids and lines #
###################################################
for (p1, p2), (p3, p4) in zip(wrap(innerbottomcoords), wrap(outerbottomcoords)):
quads.append((p1, p2, p4, p3))
lines.append((p1, p2))
lines.append((p3, p4))
# write outer top plate and lines
###################################################
# write outer top plate and lines #
###################################################
if m.group('slope') == 'Double Concave':
quads.append(outertopcoords[:4])
quads.append(outertopcoords[3:]+outertopcoords[:1])