On Feb 22, 2007, at 2:20 PM, Jonathan Wright wrote:
From http://www.iucr.org/iucr-top/cif/faq/
# What is DDL3?
DDL version 3 is the name given to some work in progress by Syd
Hall and his colleagues at the University of Western Australia. It
is intended to build on the greater consistency and data typing
abilities of DDL2 without tying the data model too closely to that
of a relational database. A particular goal of DDL3 is to
introduce methods into data dictionaries through a formal language
known as dREL (Dictionary Regular Expression Language).
I've not seen a DDL3 example, but many cases can probably be
covered with what is in pdCIF already.
The application which does the plotting doesn't need to end up
inside the cif as part of the file, but the equation linking
detector pixels to Q could be very useful. There has been a good
deal of effort already in ImageCIF for single crystal experimental
data.
I understood Maud can read and plot cifs already, and is written in
Java? Could there be a browser plugin version for this?
Correct, it read data (datafiles and structures) in CIF format. It
use the CIF sintax also for saving its own analysis files (with the
addition of some extra non cif definitions missing in the formal cif
but needed by the program and extra file substructures embedded as
comments).
In the past there was a browser/java applet version of Maud as well
as a subsequent java webstart version, both are still in there and
with the successive modifications I tried to keep the program
compliant with them, with the idea to be able to activate them if
needed. Only I have not used both of them recently so the first
programmer rule states that what has not been tested does not work
for sure.
But with a little work a java applet can be put again to work
especially with the specific purpose of plotting CIF datafiles.
Well, in case someone is interested on it, he can just contact me
with the idea/project and I may try to find out some spare time to do
it. But I would prefer to have in case some specifications, files and
what we need to just finalize and optimize it in the shortest time as
possible.
Best regards,
Luca Lutterotti
Best,
Jon
On Thu, 22 Feb 2007, Alan Hewat wrote:
Now this sounds interesting. Certainly the raw data should be
archived
and people could then plot it as they wish. But are there examples
of interactive plotting applications embedded in powderCIF files,
and what language might they use ? I would like to see a profile
plotting package in Java or some other really portable language
that would read in CIF files and plot calculated-observed patterns
like Jmol now plots structures.
Alan.
_____________________________________________________________
Dr Alan Hewat, ILL Grenoble, FRANCE<[EMAIL PROTECTED]>fax+33.476.20.76.48
+33.476.20.72.13 (.26 Mme Guillermet) http://www.ill.fr/dif/
people/hewat/
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