On Saturday, March 31, 2012 11:03:07 PM UTC+5:30, Stefan Krastanov wrote:
>
> > The initial block is going to be huge. The block is recursively 
> subdivided
> > and evaluated. If I have a false positive on one of the big blocks, the 
> plot
> > will be outright wrong. One thing we can do is to break down the whole
> > region
> > into a grid and assume that the function is monotonic in each cell and
> > evaluate the expression. I think this will be the best solution to such
> > functions.
>
> I suppose this is the problem that I was unable to see. Nonetheless,
> the solution you propose seems interesting. 
>
One other thing - using `fill_between` will work for the big blocks
> but it will fail for the smaller ones. If you will be working on
> pixels you may want to check `showimage`. Another thing that may be
> better than fill_between is to use directly the  polygon collection
> class. I don't know a good way to do this for the vector formats
> (svgfig).
>
Thanks again for helping me in making my ideas clear. Discussions with you
really helped me understand the Jeff Tupper's ideas better and I think I 
will be 
able to negotiate a lots of pitfalls due to these discussions. 
I will look into polygon collection class and the `showimage` function. 
Thanks again.  

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