On Sun, Sep 19, 2010 at 2:40 AM, Lie Ryan <lie.1...@gmail.com> wrote:
> > More slowly and takes huge amount of memory. A single Tk canvas object > takes at least 14 words (= 114 bytes in 64-bit OS = 56 bytes in 32-bit > OS) + the amount of data is needed to store the `kind of object`. That's > much larger than the ideal 3 bytes per pixel (or 4 bytes with alpha). > > Tkinter's Canvas intentionally doesn't provide create_pixel() because > unlike most other Canvas implementations, Tkinter's Canvas holds a > stateful canvas objects instead of a simple drawing surface. Providing a > create_pixel() will be too tempting for abuse, which would make the > canvas unbearably slow and memory consuming. In short, Canvas is not > designed for pixel drawing. > > > Digging a little deeper it seems the idiomatic way to do this in Python > > is to use PIL the Python Imaging Library to create a GIF or bitmap > > image and then insert that into Tkinters cancvas as an image object. > > > > The Pil ImageDraw class has a point() ethod > > If you need to plot pixels, do use pygame, PIL, or at least the > PhotoImage trick. > > Thanks for the feedback! That does make a lot a sense as to why a pixel_plot() type function would not be directly implemented in Canvas. As this is still largely a learning exercise for me, I may try more than one approach. I think first I will try the PhotoImage approach, which might be the most efficient method. However, I will definitely give Pygame a try. I have seen several programs that were written in Pygame and I am really impressed! It is obviously designed to task. -Bill
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