With ongoing sf.net outage...

We are looking to move xia2 to github, so for those of you who pull xia2 from subversion this will be a significant change. Also the "home" of xia2 will change as well - though this blog will remain, so watch this space...

sf.net outage

You may have noticed that xia2 things are not working - the svn is dead; the nightly builds are empty etc. - this is because the hosting service I use (sourceforge.net) is currently broken and has been for getting on for four days. They're in the process of restoring services (web now back, but svn is not) and normal service should resume soon.

See here for more details.

Windows...

Does anyone use xia2 / DIALS on MS Windows? Would you want to? Was pointed out to me that the changes referred to in the previous post would not work gracefully on MS Windows due to the c:\ type file paths... this should probably be fixed anyhow. Shout if you have an opinion.

New logs in the LogFiles directory; more image= options

If you look in LogFiles and you use xia2 -dials you will find some new stuff in there:

Graemes-MacBook-Pro-2:image_range graeme$ ls LogFiles/

AUTOMATIC_DEFAULT_NATIVE_truncate.log AUTOMATIC_DEFAULT_pointless.log

AUTOMATIC_DEFAULT_aimless.log SWEEP1_INDEX.log

AUTOMATIC_DEFAULT_aimless_xml.xml SWEEP1_LATTICE.log

This now includes the indexing log file and the lattice determination one; these can be useful to see how xia2 made it's decisions.

Also, if you want to combine some data from several sweeps, but only use limited image ranges, you can with:

xia2 unify_setting=true -atom Ti -small_molecule -dials image=/Users/graeme/data/i04-KTP/1/KTP_1_0001.cbf:1:100 image=/Users/graeme/data/i04-KTP/2/KTP_2_0001.cbf:1:100

so this will use the first 100 images of two sweeps and will make this xinfo file:

BEGIN PROJECT AUTOMATIC

BEGIN CRYSTAL DEFAULT

BEGIN HA_INFO

ATOM ti

!NUMBER_PER_MONOMER N

!NUMBER_TOTAL M

END HA_INFO

BEGIN WAVELENGTH SAD

WAVELENGTH 0.729320

END WAVELENGTH SAD

BEGIN SWEEP SWEEP1

WAVELENGTH SAD

DIRECTORY /Users/graeme/data/i04-KTP/1

IMAGE KTP_1_0001.cbf

START_END 1 100

END SWEEP SWEEP1

BEGIN SWEEP SWEEP2

WAVELENGTH SAD

DIRECTORY /Users/graeme/data/i04-KTP/2

IMAGE KTP_2_0001.cbf

START_END 1 100

END SWEEP SWEEP2

END CRYSTAL DEFAULT

END PROJECT AUTOMATIC

Word of warning though that this will currently (as of noon today) only cope with one subset per sweep; should be easy enough to add multiple image ranges for this though need to think what syntax to use... as always feedback welcome to xia2.support@gmail.com; to get this you will need to pull a new DIALS nightly build later today or tomorrow.

More output: how much is too much?

Request of additional output from xia2 e.g. in the indexing table:

------------------- Autoindexing SWEEP1 --------------------

All possible indexing solutions:

oP   6.39  10.59  12.80  90.00  90.00  90.00

mP   6.39  12.80  10.59  90.00  89.99  90.00

aP   6.39  10.59  12.80  90.00  90.00  89.99

Indexing solution:

oP   6.39  10.59  12.80  90.00  90.00  90.00

adding the R.M.S.D., metric penalty etc. from for example dials.index.  This will however make for more "junk" in the output and will also depend on the package being run underneath. Also requested was number of spots indexed vs. total number of spots. This will make for more information in the output which could make it cluttered and will also have the potential to "break" other software which uses this.

Thoughts anyone?