viewing generated images
fredrik at pythonware.com
Thu Jun 2 10:33:25 CEST 2005
Tim Flynn wrote:
> def createWidgets(self):
> self.image_size = (50,50)
> self.pilim = Image.new( "1", self.image_size )
> # Generate a blank image
> f = lambda(x): 0
> Image.eval( self.pilim, f )
I'm not sure what you think that line is doing, but it probably
doesn't do what you think it does.
try changing the Image.new call to
self.pilim = Image.new( "1", self.image_size, 0 )
> self.bmi = ImageTk.BitmapImage( image = self.pilim,
> foreground = 'black' )
> self.canvas = Canvas( width=100,
> height = 100,
> bg = 'white' )
> self.quitButton = Button( self,
> command=self.quit )
> im_id = self.canvas.create_bitmap( 0,
> anchor = 'nw',
> bitmap = self.bmi )
it's a terminology confusion: for historical reasons, Tkinter distinguishes between
bitmaps and images (this separation comes from the X window system). Bitmap-
Image creates an image.
changing to create_image should fix the problem.
(if you're doing an image viewer, you may want to use PhotoImage
instead of BitmapImage, btw).
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