But, if you need them to go away after bringing them in, you need to 
get rid of the page explicitly.  The book points to the page points 
to the picture, so memory fills.

Mark

>je77 --
>
>Note that bookmorphs can be stored externally and brought in one 
>page at a time .....
>
>Cheers,
>
>Alan
>
>------
>
>At 1:48 PM -0400 8/20/01, Jochen F. Rick wrote:
>> > You might want to look at the support for such operations in 
>>bookMorphs.  There is a BookPageSorter invoked by 'sort pages' that 
>>allows instant drag/drop sorting of thumbnails.  This can even be 
>>used from one book to another.  While you'll see the same
>>delay to build the thumbnails, things are instant from then on. 
>>BookMorphs cache the thumbnails, so you can re-sort later with no 
>>delay, except for new pages.
>>
>>Hi Dan,
>>
>>this was actually my inspiration for the reordering stuff. My reordering
>>window works basically in the same way. Once thumbnails are created, they
>>are stored externally, so that you can just move directories around
>>without having to keep anything in memory.
>>
>>Peace and Luck!
>>
>>Je77
>
>
>--

--------------------------
Mark Guzdial : Georgia Tech : College of Computing : Atlanta, GA 30332-0280
Associate Professor - Learning Sciences & Technologies.
Collaborative Software Lab - http://coweb.cc.gatech.edu/csl/
(404) 894-5618 : Fax (404) 894-0673 : guzdial at cc.gatech.edu
http://www.cc.gatech.edu/gvu/people/Faculty/Mark.Guzdial.html