Re: handle grapics with Document/View design

[Bill Denney]

On Thu, 18 Aug 2005, John W. Eaton wrote:

> So all the uiobjects are in a flat structure array?  What if the set
> of uiobjects is arranged in a tree structure, where one uiobject might
> have other uiobjects as children?  Then I don't think the find trick
> is enough.  In that case, wouldn't you need to search through the tree
> recursively, looking at each set of children in the uiobject tree?

I believe that one method could be similar to matlab's method. 
Sub-objects are sub-integers.  Such as:

figure = 1
title = 1.01
title's font = 1.0101

And the structure would look something like:
figure = {
  id = 1
  title = {
    id = 1.01
    font = {
      1.0101
    }
    text = {
      id = 1.0102
      value = 'foo bar'
    }
  }
}

etc.

That could make lookups reasonably fast and make the tree searchable.  The 
downside is that if you were to get about 10 levels deep, machine 
precision would start working against you.

Bill

--
"This school has everything... Their periodic table has 250 elements."
  -- Lisa Simpson