def setBackImage(self, name):
"""Set a new image on the back material."""
self.backmaterial.texture.imagename = name
img = Image.open(name)
if img.mode!="RGB" and img.mode!="RGBA":
img = img.convert("RGB")
self.backmaterial.texture.image = img
w,h = img.size
f = (4.0*h)/(3.0*w)
if f>=1.0:
S = mat4(1).scale(vec3(f,1,1))
S.translate(vec3(-0.5+0.5/f,0,0))
draw = ImageDraw.Draw(img)
draw.line([(0,0), (0,h)], fill=(0,0,0))
draw.line([(1,0), (1,h)], fill=(0,0,0))
draw.line([(w-1,0), (w-1,h)], fill=(0,0,0))
draw.line([(w-2,0), (w-2,h)], fill=(0,0,0))
else:
f = (3.0*w)/(4.0*h)
S = mat4(1).scale(vec3(1,f,1))
S.translate(vec3(0,-0.5+0.5/f,0))
draw = ImageDraw.Draw(img)
draw.line([(0,0), (w,0)], fill=(0,0,0))
draw.line([(0,1), (w,1)], fill=(0,0,0))
draw.line([(0,h-1), (w,h-1)], fill=(0,0,0))
draw.line([(0,h-2), (w,h-2)], fill=(0,0,0))
invY = mat4(1).translate(vec3(0,1,0)).scale(vec3(1,-1,1))
self.backmaterial.texture.transform = invY*S
def loadTexData(self):
"""Load and apply texture file.
"""
# No image data set? Then use the file name and load the image...
if self.image==None:
if self.imagename=="":
return
print 'Loading "%s"...'%self.imagename,
fullname = os.path.join(self._path, self.imagename)
try:
img = Image.open(fullname)
self._passPILImage(img)
except IOError, e:
print "failed"
print e
return
def loadTexData(self):
"""Load and apply texture file.
"""
# No image data set? Then use the file name and load the image...
if self.image==None:
if self.imagename=="":
return
print 'Loading "%s"...'%self.imagename,
fullname = os.path.join(self._path, self.imagename)
try:
img = Image.open(fullname)
self._passPILImage(img)
except IOError, e:
print "failed"
print e
return
def stitch(filename, removetiles=False, infostream=None):
"""Stitch several image tiles together.
filename is the base name of the image that determines the file names
of the tiles. filename is also the name of the output image.
If removetiles is True, the individual image files will be deleted
after the image has been stitched.
If infostream is set to a file like object it is used to output
status information about the stitching process.
The name of an image tile must contain the crop information that was
used to create the image. For example, the name of a tile for an
image "out.tif" could look like this: "out_0.0_0.5_0.75_1.0.tif".
The four values are the x1,x2,y1,y2 values of the crop window. Those
values together with the resolution of the tile determine the resolution
of the entire image. The position of the tile within that image is
given by x1,y1.
"""
inname,inext = os.path.splitext(filename)
tilenames = glob.glob("%s*%s"%(inname,inext))
# A list of tuples (tilename, coords, img)
tiles = []
mode = None
# Filter tiles and fill the tiles list...
for tilename in tilenames:
# No tile at all?
if not isTile(tilename):
continue
name,ext,coords = splitTileName(tilename)
# A tile of another image?
if name!=inname or ext!=inext:
continue
# Open the tile image...
img = Image.open(tilename)
# Set required mode
if mode==None:
mode = img.mode
if img.mode!=mode:
raise ValueError, "%s: Mode mismatch, %s instead of %s"%(tilename, img.mode, mode)
tiles.append((tilename, coords, img))
# No tiles? then exit
if len(tiles)==0:
if infostream!=None:
print >>infostream, 'No image tiles found for image "%s"'%filename
return
# Create the output image...
width, height, xposs, yposs = outputSpecs(tiles)
mode = tiles[0][2].mode
if infostream!=None:
print >>infostream, "Final resolution: %dx%d, mode: %s"%(width, height, mode)
outimg = Image.new(mode, (width, height))
# Paste the tiles into the output image...
for tilename, coords, img in tiles:
x = xposs[coords[0]]
y = yposs[coords[2]]
outimg.paste(img, (x, y))
# Delete the reference to the image
img = None
# Save the output image
if infostream!=None:
print >>infostream, "Stitched %d tiles"%len(tiles)
print >>infostream, 'Saving "%s"...'%filename
outimg.save(filename)
# Remove tiles (if desired)
if removetiles:
if infostream!=None:
print >>infostream, "Removing tiles..."
# Get the tile names and delete the tiles list
# so that the images are no longer referenced
# (otherwise they couldn't be deleted)
tilenames = map(lambda x: x[0], tiles)
tiles = None
for tilename in tilenames:
os.remove(tilename)
def stitch(filename, removetiles=False, infostream=None):
"""Stitch several image tiles together.
filename is the base name of the image that determines the file names
of the tiles. filename is also the name of the output image.
If removetiles is True, the individual image files will be deleted
after the image has been stitched.
If infostream is set to a file like object it is used to output
status information about the stitching process.
The name of an image tile must contain the crop information that was
used to create the image. For example, the name of a tile for an
image "out.tif" could look like this: "out_0.0_0.5_0.75_1.0.tif".
The four values are the x1,x2,y1,y2 values of the crop window. Those
values together with the resolution of the tile determine the resolution
of the entire image. The position of the tile within that image is
given by x1,y1.
"""
inname, inext = os.path.splitext(filename)
tilenames = glob.glob("%s*%s" % (inname, inext))
# A list of tuples (tilename, coords, img)
tiles = []
mode = None
# Filter tiles and fill the tiles list...
for tilename in tilenames:
# No tile at all?
if not isTile(tilename):
continue
name, ext, coords = splitTileName(tilename)
# A tile of another image?
if name != inname or ext != inext:
continue
# Open the tile image...
img = Image.open(tilename)
# Set required mode
if mode == None:
mode = img.mode
if img.mode != mode:
raise ValueError("%s: Mode mismatch, %s instead of %s" %
(tilename, img.mode, mode))
tiles.append((tilename, coords, img))
# No tiles? then exit
if len(tiles) == 0:
if infostream != None:
print >> infostream, 'No image tiles found for image "%s"' % filename
return
# Create the output image...
width, height, xposs, yposs = outputSpecs(tiles)
mode = tiles[0][2].mode
if infostream != None:
print >> infostream, "Final resolution: %dx%d, mode: %s" % (
width, height, mode)
outimg = Image.new(mode, (width, height))
# Paste the tiles into the output image...
for tilename, coords, img in tiles:
x = xposs[coords[0]]
y = yposs[coords[2]]
outimg.paste(img, (x, y))
# Delete the reference to the image
img = None
# Save the output image
if infostream != None:
print >> infostream, "Stitched %d tiles" % len(tiles)
print >> infostream, 'Saving "%s"...' % filename
outimg.save(filename)
# Remove tiles (if desired)
if removetiles:
if infostream != None:
print >> infostream, "Removing tiles..."
# Get the tile names and delete the tiles list
# so that the images are no longer referenced
# (otherwise they couldn't be deleted)
tilenames = map(lambda x: x[0], tiles)
tiles = None
for tilename in tilenames:
os.remove(tilename)
