Hi Bob
Good to have this overview.
Maybe I'm missing it, but in my impression, a third way would be as I
described to use the Jmol File menue, and then the "Save Script with
State" function. We believe, the common behavior a user expects is that
the user can save a state, as some kind of input file for a calculation,
on his local machine. This works nicely with the above function,
combined with later using "Open File or URL".
Following your conventions, it would mean
(c) "restore from a previous session using data saved on the client"
Looking forward to anything that can be added to this aspect.
Martin
On 15.06.12 12:30, Robert Hanson wrote:
Martin,
I can't remember if you mean
(a) "restore from a few minutes ago within this session" or
(b) "restore from a previous session using data saved on the server"
So I will use this opportunity to discuss different ways to save the
state, some of which are very new and only a couple of us are aware of.
(a) "restore from a few minutes ago within this session"
This is trivial. All within Jmol. This works for all versions of Jmol:
:
save state xxx
restore state xxx
(b) "restore from a previous session using data saved on the server"
and using 12.3:
Option 1. Slicker-than-ice new method
WITHIN Jmol we will post the entire state to the server, including all
necessary files to restore the state, in PNGJ format. That is, Jmol
basically does its own AJAX to deliver a PNGJ file to its server. You
can do this with the signed or unsigned applet. The load command is
used so that we can confirm that the upload was successful.
print load("myserverurl.xxxx/xxxx?POST?_PNGJ_")
That is really the slickest way to go, because you get an image that
you can check. You have to have a server-side app that can accept a
post. The variable will be server POST variable will be "_PNGJ_" and
it's value will be a base64-encoded image. Server should return
something like "OK". If this is your interest, talk with me, because I
just realized we could easily just send the entire state in binary
format and make this one step simpler. I like this option because on
the server you get an image that can be delivered straight back to a
client either as an image or as a Jmol model. This option is Jmol
12.3.30-only. Use the files in http://chemapps.stolaf.edu/jmol/Jmol-12.zip
Option 2: Just the state to server, no files:
If you know the files are always available (remote or from your site)
and you do not want to save a full PNGJ state, you can just use this
to save the Jmol state script:
print load("myserverurl/saveJmolState.php?POST?state=" +
getProperty("stateInfo"))
For either of these options you would have to figure out how to
restore the state from your server using something like this within Jmol:
script "myserverurl/restoreJmolState.php?....."
and have the server either return the state script or the PNGJ file.
Bob
On Fri, Jun 15, 2012 at 3:16 AM, Martin Hediger <[email protected]
<mailto:[email protected]>> wrote:
Hi Bob, thanks for your answer.
First of all, my question would be what's the best way to restore
the state?
Second, 1.1 and 2.1 are rotatable. 3.1 not.
I'm trying to do it with the signed applet (useing save script
with state) and it seems to work, but I'm highly suscpicious about
anything that works just that easily.
Martin
On 13.06.12 23:53, Robert Hanson wrote:
allowRotateSelected is for all models, right? Not specific to a
specific model, I think.
If models have been rotated using allowRotateSelected, it means
that their atom positions have changed. This will be reflected in
the state, so I imagine everything should be fine when you
restore the state from disk.
Have you seen a problem with that?
Bob
On Wed, Jun 13, 2012 at 1:53 PM, Martin Hediger
<[email protected] <mailto:[email protected]>> wrote:
Dear Jmol Developers
I'm working on our application and I require to enable the
user to
restore a previous Jmol session. In the applet, three models
are loaded,
for two of which "allowRotateSelected" is enabled. That means
when the
user restores a session, the orientation of the two rotatable
models
(1.1 and 2.1) should also be restored.
How should this be done?
Thanks for your input
Martin
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Robert M. Hanson
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St. Olaf College
Northfield, MN
http://www.stolaf.edu/people/hansonr
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it is better to take what answer we get.
-- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900
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--
Robert M. Hanson
Larson-Anderson Professor of Chemistry
Chair, Chemistry Department
St. Olaf College
Northfield, MN
http://www.stolaf.edu/people/hansonr
If nature does not answer first what we want,
it is better to take what answer we get.
-- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900
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