Re: bookmarking images

[Joe Wielgosz <joew@xxxxxxxxxxxxx>]

Have you considered adding some way to do this? This would be highly 
desirable based on the type of usage we get for our current image 
pages. A lot of people decide which variables and regions they are 
interested in, set a bookmark, and check back each time our model 
output updates.

Also, we put together web pages containing predefined collections of 
images. We could use links to a LAS to generate these images on demand 
if there was a way to encode the constraints in the URL.

- Joe


On Wednesday, December 18, 2002, at 03:51 PM, Jonathan Callahan wrote:

> Joe,
>
> The output filename does not expire with each session.  It is generated
> with the Digest-MD5 perl module.  This module converts arbitrary input
> into an RSA encrypted string, called a 'digest'.  In the case of LAS,
> the arbitrary input is the xml request coming to the data server.
>
> So, whenever you ask for exactly the same thing, you will generate
> exactly the same encrypted file name.  Unfortunately, you cannot
> regenerate the xml request from the file name.
>
> This doesn't address your issue of a permanent URL for a specific 
> output
> graphic.  Currently there is no mechanism for this in LAS.
>
>
> -- Jon
>
>
> Joe Wielgosz wrote:
>
> > Is there a way to bookmark a las-generated image so that it will be
> > automatically regenerated if it has expired from the cache?
> >
> > I assume that URLs of the form
> > las-output/d6c5e016e894cd5f0c1995547cc00e46.gif are just temporary
> > unique ID's which are only valid within a session..
> >
> > - Joe
> >
> > Joe Wielgosz / joew@cola.iges.org
> > ---------------------------------------------------
> > Center for Ocean-Land-Atmosphere Studies (COLA)
> > Institute for Global Environment and Society (IGES)
> > http://www.iges.org
Joe Wielgosz / joew@cola.iges.org
---------------------------------------------------
Center for Ocean-Land-Atmosphere Studies (COLA)
Institute for Global Environment and Society (IGES)
http://www.iges.org