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blender/release/scripts/wings_import.py
Willian Padovani Germano 62147bba30 Scripts (making some changes to the scripts dir): 
- moved bpydata/ to scripts/bpydata/ and added a config/ subdir to it;
- created scripts/bpymodules for py modules (also got rid of those "mod_"'s appended to the files);
- updated scripts accordingly.

This will require you to "reinstall" (just copy the scripts/ dir over your older one) if you have a .blender/scripts/ dir somewhere.  Otherwise some scripts won't work.  You can use the updated "Help->System->System Information" script here to check all is fine.  An installer script yet to be written will help users with these issues, specially to make the user defined dir have the same structure expected from the default scripts dir, so the basic facilities (module search; saved config data; scripts: installer, help browser, config editor) are also available for a user's own collection of written and downloaded scripts.

BPython:
- slikdigit's crash was because he had no <home or blender exe location>/.blender/:
  proper check added and also now if all else fails the <cvsblender>/release/scripts/ dir is also searched for scripts.  All this registration dirs stuff is a little messy (installation!), so please report any troubles (I only tested on linux).
- slight change in error report in BPY_interface.c's BPY_menu_do_python; remembering to set globaldict pointer to NULL there, too.
- moved bpy_gethome() to EXPP_interface.[ch]
- "//" as user defined python dir is ignored while looking for scripts, considering it's only a default some users use, not really meant for a scripts dir.
2005-03-21 05:26:52 +00:00

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#!BPY
"""
Name: 'Wings3D (.wings)...'
Blender: 232
Group: 'Import'
Tooltip: 'Import Wings3D File Format (.wings)'
"""
__author__ = "Anthony D'Agostino (Scorpius)"
__url__ = ("blender", "elysiun",
"Author's homepage, http://www.redrival.com/scorpius",
"Wings 3D, http://www.wings3d.com")
__version__ = "Part of IOSuite 0.5"
__bpydoc__ = """\
This script imports Wings3D files to Blender.
Wings3D is an open source polygon modeler written in Erlang, a
language similar to Lisp. The .wings file format is a binary
representation of erlang terms (lists, tuples, atoms, etc.) and is
compressed with zlib.
Usage:<br>
Execute this script from the "File->Import" menu and choose a Wings file
to open.
Supported:<br>
Meshes only. Not guaranteed to work in all situations.
Missing:<br>
Materials, UV Coordinates, and Vertex Color info will be ignored.
Known issues:<br>
Triangulation of convex polygons works fine, and uses a very simple
fanning algorithm. Convex polygons (i.e., shaped like the letter "U")
require a different algorithm, and will be triagulated incorrectly.
Notes:<br>
Last tested with Wings 3D 0.98.25 & Blender 2.35a.
"""
# $Id$
#
# +---------------------------------------------------------+
# | 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, 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 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 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 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))
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
meshtools.print_boxed(message)
def fs_callback(filename):
read(filename)
Blender.Window.FileSelector(fs_callback, "Import Wings3D")
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