viewing generated images

[Tim Flynn]

Fredrik Lundh wrote:

> 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 )
> 
> instead.
> 
>>        self.bmi = ImageTk.BitmapImage( image = self.pilim,
>>                                        foreground = 'black' )
> 
>>        self.canvas = Canvas( width=100,
>>                              height = 100,
>>                              bg = 'white' )
>>        self.quitButton = Button( self,
>>                                  text="Quit",
>>                                  command=self.quit )
>>        self.quitButton.grid()
>>        self.canvas.grid()
>>        im_id = self.canvas.create_bitmap( 0,
>>                                           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).
> 
> </F>

  That fixed the problem I was having and your right I was confused about
how to create the image but I'm sure I'll be able to figure that out now
that I'm getting some output.

  Thanks much.

Tim