Used to be that it required the signed applet to read and write files
locally. Well, well, what do you know? I'm liking HTML5 more and more. The
following commands, previously for the signed applet only, now work in
JSmol/HTML5.
load ? x = load("?")
write file ?
write xxx.jpg write xxx.png write PNGJ xxx.png
write PNGJ 500 500 "xxx.png"
write xxx.zip write xxx.jmol
write xxx.pdb write xxx.mol write xxx.v2000
write xxx.v3000 write xxx.xyz
What's especially satisfying for me is that the loading is done
asynchronously. I had thought that would be extremely difficult to do -- to
pause a running script of however many levels of depth and deep into
however many function calls while an asynchronous file load was happening,
then restart upon completion at the right place. Well, guess what? It was
only moderately difficult! The HTML5 FileReader API is great. [
http://www.w3.org/TR/FileAPI/ ] Looks like this has reasonable support
across browsers (http://caniuse.com/#feat=filereader), although one cannot
go back very far in time.
Writing files to disk still requires "reflecting" the data from
Info.serverUrl, but I'm optimistic (based on http://caniuse.com/filesystem)
that the HTML5 FileWriter API will continue to be introduced and at some
point will allow us to get rid of the need of a server for local file
writing. Certainly what we have now is close to ideal.
Check it out at http://chemapps.stolaf.edu/jmol/jsmol/jsmol.htm
http://chemapps.stolaf.edu/jmol/zip/jmol-13.3.6_2013.09.17.zip
Bob
--
Robert M. Hanson
Larson-Anderson Professor of Chemistry
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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