forked from bartvdbraak/blender
d34f89b755
* Added items for importing DXF, VRML, etc. in the File->Import menu, that just call the normal Open function. Most people don't even know that you can open these formats through the normal Open fileselect, so this will make it more obvious. * Removed the 'Export Selected' menu, and put poor old lonely STL in the Import and Export menus too. Most of the exporters export only the selected object anyway, so it's not really a necessary distinction to make.
291 lines
9.2 KiB
Python
291 lines
9.2 KiB
Python
#!BPY
|
||
|
||
"""
|
||
Name: 'Wings3D (.wings)...'
|
||
Blender: 232
|
||
Group: 'Import'
|
||
Tooltip: 'Import Wings3D File Format (.wings)'
|
||
"""
|
||
|
||
# $Id$
|
||
#
|
||
# +---------------------------------------------------------+
|
||
# | Copyright (c) 2002 Anthony D'Agostino |
|
||
# | http://www.redrival.com/scorpius |
|
||
# | scorpius@netzero.com |
|
||
# | Feb 19, 2002 |
|
||
# | Released under the Blender Artistic Licence (BAL) |
|
||
# | Import Export Suite v0.5 |
|
||
# +---------------------------------------------------------+
|
||
# | Read and write Wings3D File Format (*.wings) |
|
||
# +---------------------------------------------------------+
|
||
|
||
import Blender, mod_meshtools
|
||
import struct, time, sys, os, zlib, cStringIO
|
||
|
||
# ==============================================
|
||
# === Read The 'Header' Common To All Chunks ===
|
||
# ==============================================
|
||
def read_chunkheader(data):
|
||
data.read(2) #version, tag = struct.unpack(">BB", data.read(2))
|
||
misc, namelen = struct.unpack(">BH", data.read(3))
|
||
name = data.read(namelen)
|
||
return name
|
||
|
||
# ==============================
|
||
# === Read The Material Mode ===
|
||
# ==============================
|
||
def read_mode(data):
|
||
data.read(5) # BL
|
||
read_chunkheader(data) # "mode"
|
||
misc, namelen = struct.unpack(">BH", data.read(3))
|
||
data.read(namelen)
|
||
data.read(1) # 6A
|
||
|
||
# =======================
|
||
# === Read Hard Edges ===
|
||
# =======================
|
||
def read_hardedges(data):
|
||
tag = data.read(1)
|
||
if tag == '\x6A':
|
||
return # There are no hard edges
|
||
elif tag == '\x6B':
|
||
numhardedges, = struct.unpack(">H", data.read(2))
|
||
print "numhardedges:", numhardedges
|
||
for i in range(numhardedges):
|
||
data.read(1)
|
||
elif tag == '\x6C':
|
||
numhardedges, = struct.unpack(">L", data.read(4))
|
||
print "numhardedges:", numhardedges
|
||
for i in range(numhardedges):
|
||
misc = data.read(1)
|
||
if misc == '\x61': # next value is stored as a byte
|
||
data.read(1)
|
||
elif misc == '\x62': # next value is stored as a long
|
||
data.read(4)
|
||
data.read(1) # 6A
|
||
else:
|
||
print tag
|
||
|
||
# ==================
|
||
# === Read Edges ===
|
||
# ==================
|
||
def read_edges(data):
|
||
misc, numedges = struct.unpack(">BL", data.read(5))
|
||
edge_table = {} # the winged-edge table
|
||
for i in range(numedges):
|
||
if not i%100 and mod_meshtools.show_progress: Blender.Window.DrawProgressBar(float(i)/numedges, "Reading Edges")
|
||
misc, etype = struct.unpack(">BL", data.read(5))
|
||
if etype == 2: # Vertex Colors
|
||
data.read(10) # or read_chunkheader(data) # "color"
|
||
data.read(5) # BL
|
||
r1,g1,b1,r2,g2,b2 = struct.unpack(">dddddd", data.read(48))
|
||
#print "%3d %3d %3d | %3d %3d %3d" % (r1*255,g1*255,b1*255,r2*255,g2*255,b2*255),
|
||
#print "%f %f %f | %f %f %f" % (r1, g1, b1, r2, g2, b2)
|
||
data.read(9) # or read_chunkheader(data) # "edge"
|
||
edge = [] # the eight entries for this edge
|
||
for e in range(8): # Sv Ev | Lf Rf | Lp Ls | Rp Rs
|
||
misc = data.read(1)
|
||
if misc == '\x61': # next value is stored as a byte
|
||
entry, = struct.unpack(">B", data.read(1))
|
||
edge.append(entry)
|
||
elif misc == '\x62': # next value is stored as a long
|
||
entry, = struct.unpack(">L", data.read(4))
|
||
edge.append(entry)
|
||
edge_table[i] = edge
|
||
data.read(1) # 6A
|
||
data.read(1) # 6A
|
||
return edge_table
|
||
|
||
# ==================
|
||
# === Read Faces ===
|
||
# ==================
|
||
def read_faces(data):
|
||
misc, numfaces = struct.unpack(">BL", data.read(5))
|
||
for i in range(numfaces):
|
||
if not i%100 and mod_meshtools.show_progress: Blender.Window.DrawProgressBar(float(i)/numfaces, "Reading Faces")
|
||
if data.read(1) == '\x6C': # a material follows
|
||
data.read(4)
|
||
read_chunkheader(data)
|
||
misc, namelen = struct.unpack(">BH", data.read(3))
|
||
materialname = data.read(namelen)
|
||
data.read(1)
|
||
data.read(1) # 6A
|
||
return numfaces
|
||
|
||
# ==================
|
||
# === Read Verts ===
|
||
# ==================
|
||
def read_verts(data):
|
||
misc, numverts = struct.unpack(">BL", data.read(5))
|
||
verts = [] # a list of verts
|
||
for i in range(numverts):
|
||
if not i%100 and mod_meshtools.show_progress: Blender.Window.DrawProgressBar(float(i)/numverts, "Reading Verts")
|
||
data.read(10)
|
||
x, y, z = struct.unpack(">ddd", data.read(24)) # double precision
|
||
verts.append((x, -z, y))
|
||
data.read(1) # 6A
|
||
data.read(1) # 6A
|
||
return verts
|
||
|
||
# =======================
|
||
# === Make Face Table ===
|
||
# =======================
|
||
def make_face_table(edge_table): # For Wings
|
||
face_table = {}
|
||
for i in range(len(edge_table)):
|
||
Lf = edge_table[i][2]
|
||
Rf = edge_table[i][3]
|
||
face_table[Lf] = i
|
||
face_table[Rf] = i
|
||
return face_table
|
||
|
||
# =======================
|
||
# === Make Vert Table ===
|
||
# =======================
|
||
def make_vert_table(edge_table): # For Wings
|
||
vert_table = {}
|
||
for i in range(len(edge_table)):
|
||
Sv = edge_table[i][0]
|
||
Ev = edge_table[i][1]
|
||
vert_table[Sv] = i
|
||
vert_table[Ev] = i
|
||
return vert_table
|
||
|
||
# ==================
|
||
# === Make Faces ===
|
||
# ==================
|
||
def make_faces(edge_table): # For Wings
|
||
face_table = make_face_table(edge_table)
|
||
faces=[]
|
||
for i in range(len(face_table)):
|
||
face_verts = []
|
||
current_edge = face_table[i]
|
||
while(1):
|
||
if i == edge_table[current_edge][3]:
|
||
next_edge = edge_table[current_edge][7] # Right successor edge
|
||
next_vert = edge_table[current_edge][0]
|
||
else:
|
||
next_edge = edge_table[current_edge][5] # Left successor edge
|
||
next_vert = edge_table[current_edge][1]
|
||
face_verts.append(next_vert)
|
||
current_edge = next_edge
|
||
if current_edge == face_table[i]: break
|
||
face_verts.reverse()
|
||
faces.append(face_verts)
|
||
return faces
|
||
|
||
# =======================
|
||
# === Dump Wings File ===
|
||
# =======================
|
||
def dump_wings(filename):
|
||
import pprint
|
||
start = time.clock()
|
||
file = open(filename, "rb")
|
||
header = file.read(15)
|
||
fsize, = struct.unpack(">L", file.read(4)) # file_size - 19
|
||
misc, = struct.unpack(">H", file.read(2))
|
||
dsize, = struct.unpack(">L", file.read(4)) # uncompressed data size
|
||
data = file.read(fsize-6)
|
||
file.close()
|
||
data = zlib.decompress(data)
|
||
if dsize != len(data): print "ERROR: uncompressed size does not match."
|
||
data = cStringIO.StringIO(data)
|
||
print "header:", header
|
||
print read_chunkheader(data) # === wings chunk ===
|
||
data.read(4) # misc bytes
|
||
misc, numobjs, = struct.unpack(">BL", data.read(5))
|
||
print "filename:", filename
|
||
print "numobjs :", numobjs
|
||
for obj in range(numobjs):
|
||
print read_chunkheader(data) # === object chunk ===
|
||
misc, namelen = struct.unpack(">BH", data.read(3))
|
||
objname = data.read(namelen)
|
||
print read_chunkheader(data) # === winged chunk ===
|
||
edge_table = read_edges(data)
|
||
numfaces = read_faces(data)
|
||
verts = read_verts(data)
|
||
read_hardedges(data)
|
||
|
||
face_table = {} # contains an incident edge
|
||
vert_table = {} # contains an incident edge
|
||
for i in range(len(edge_table)):
|
||
face_table[edge_table[i][2]] = i # generate face_table
|
||
face_table[edge_table[i][3]] = i
|
||
vert_table[edge_table[i][0]] = i # generate vert_table
|
||
vert_table[edge_table[i][1]] = i
|
||
|
||
print "objname :", objname
|
||
print "numedges:", len(edge_table)
|
||
print "numfaces:", numfaces
|
||
print "numverts:", len(verts)
|
||
print
|
||
print "<EFBFBD>"*79
|
||
print "edge_table:"
|
||
pprint.pprint(edge_table)
|
||
#for i in range(len(edge_table)): print "%2d" % (i), edge_table[i]
|
||
print
|
||
print "face_table:"
|
||
pprint.pprint(face_table)
|
||
#for i in range(len(face_table)): print "%2d %2d" % (i, face_table[i])
|
||
print
|
||
print "vert_table:"
|
||
pprint.pprint(vert_table)
|
||
#for i in range(len(vert_table)): print "%2d %2d" % (i, vert_table[i])
|
||
file.close()
|
||
end = time.clock()
|
||
print '\a\r',
|
||
sys.stderr.write("\nDone in %.2f %s" % (end-start, "seconds"))
|
||
|
||
# =========================
|
||
# === Read Wings Format ===
|
||
# =========================
|
||
def read(filename):
|
||
start = time.clock()
|
||
file = open(filename, "rb")
|
||
header = file.read(15)
|
||
fsize, = struct.unpack(">L", file.read(4)) # file_size - 19
|
||
misc, = struct.unpack(">H", file.read(2))
|
||
dsize, = struct.unpack(">L", file.read(4)) # uncompressed data size
|
||
data = file.read(fsize-6)
|
||
#print file.tell(), "bytes"
|
||
file.close()
|
||
Blender.Window.DrawProgressBar(1.0, "Decompressing Data")
|
||
data = zlib.decompress(data)
|
||
data = cStringIO.StringIO(data)
|
||
read_chunkheader(data) # wings chunk
|
||
data.read(4) # misc bytes
|
||
misc, numobjs = struct.unpack(">BL", data.read(5))
|
||
message = "Successfully imported " + os.path.basename(filename) + '\n\n'
|
||
message += "%s %8s %8s %8s\n" % ("Object".ljust(15), "faces", "edges", "verts")
|
||
message += "%s %8s %8s %8s\n" % ("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>".ljust(15), "<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>", "<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>", "<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>")
|
||
|
||
for obj in range(numobjs):
|
||
read_chunkheader(data) # object chunk
|
||
misc, namelen = struct.unpack(">BH", data.read(3))
|
||
objname = data.read(namelen)
|
||
read_chunkheader(data) # winged chunk
|
||
edge_table = read_edges(data)
|
||
numfaces = read_faces(data)
|
||
verts = read_verts(data)
|
||
read_hardedges(data)
|
||
read_mode(data)
|
||
faces = make_faces(edge_table)
|
||
message += "%s %8s %8s %8s\n" % (objname.ljust(15), len(faces), len(edge_table), len(verts))
|
||
mod_meshtools.create_mesh(verts, faces, objname)
|
||
|
||
material = data.read()
|
||
#for i in material[0:6]: print "%02X" % ord(i),
|
||
#print
|
||
Blender.Window.DrawProgressBar(1.0, "Done") # clear progressbar
|
||
data.close()
|
||
end = time.clock()
|
||
seconds = "\nDone in %.2f %s" % (end-start, "seconds")
|
||
message += seconds
|
||
mod_meshtools.print_boxed(message)
|
||
|
||
def fs_callback(filename):
|
||
read(filename)
|
||
|
||
Blender.Window.FileSelector(fs_callback, "Import Wings3D")
|