Generate XDS.INP

This script should be in your $PATH as "generate_XDS.INP" . As the name suggests, it generates XDS.INP based on a list of frame names supplied on the commandline. Currently works for MarCCD, ADSC and Pilatus 6M detectors.

#!/bin/bash

# purpose: generate XDS.INP
# revision 0.03 . Kay Diederichs 2/2010 
# revision 0.04 . Kay Diederichs 4/2010 - include alternative ORGX, ORGY calculations for ADSC
# revision 0.05 . Kay Diederichs 5/2010 - grep for "Corrected" in addition to "marccd"; needed for BESSY 
# revision 0.06 . KD 6/2010 - add UNTRUSTED_RECTANGLE and UNTRUSTED_ELLIPSE; use `whereis catmar` and so on 
# revision 0.07 . KD 6/2010 - decide about ORGX/Y info in MAR header being pixels or mm; other fixes
# revision 0.08 . KD 6/2010 - fixes for Pilatus 6M
# revision 0.09 . KD 6/2010 - get rid of requirement for mccd_xdsparams.pl and/or catmar; rather use "od"
# tested with some datasets from ALS, SSRL, SLS and ESRF; only MARCCD, ADSC/SMV, PILATUS 6M detectors; 
# for other detectors, values marked with XXX must be manually filled in.
#
# usage: e.g. generate_XDS.INP "frms/mydata_1_???.img"
# make sure to have the two quotation marks !
# the ? are wildcards for the frame numbers.
#
# two external programs that can read MAR headers:
# - for MARCCD detectors the "catmar" binary (which can be downloaded from http://www.marresearch.com/download.html) 
# - the [[mccd_xdsparams.pl]] script (see http://strucbio.biologie.uni-konstanz.de/xdswiki/index.php/Mccd_xdsparams.pl ) 
# 
# limitations:
# - frame numbers are assumed to start with 1 and run consecutively
# 
# known problems:
# - for ADSC detectors, there are at least three ways to obtain ORGX and ORGY values from the header (see below);
# - the same might be a problem for MAR headers, too (not sure about this)
#
# notes for debugging of the script:
# - add the -v option to the first line, to see where an error occurs
# - comment out the removal of tmp1 and tmp2 in the last line
#
# ====== Start of script ======
if [ "$1" == "help" ] || [ "$1" == "-help" ] || [ "$1" == "-h" ]; then
  echo usage: generate_XDS.INP \"frms/mydata_1_???.img\"   \(_with_ the quotation marks!\)
  exit
fi
#
# defaults:
#
DETECTOR="XXX MINIMUM_VALID_PIXEL_VALUE=XXX OVERLOAD=XXX"
ORGX=XXX
ORGY=XXX
DETECTOR_DISTANCE=XXX
OSCILLATION_RANGE=XXX
X_RAY_WAVELENGTH=XXX

# see how we are called:
NAME_TEMPLATE_OF_DATA_FRAMES="$1"

# list frames matching the wildcards in NAME_TEMPLATE_OF_DATA_FRAMES
# don't accept the "direct beam" shot at SLS/Pilatus
ls -C1 $1 | grep -v "_00000.cbf" > tmp1 || exit 1

# we can continue - the frames are found
echo Full documentation, including complete detector templates and XDS binaries, can be found at
echo http://www.mpimf-heidelberg.mpg.de/~kabsch/xds . More documentation: see XDSwiki

# set upper limit of DATA_RANGE to number of frames (see "limitations" above)
DATA_RANGE=`wc -l tmp1 | awk '{print $1}'`

# set upper limit of SPOT_RANGE to half of DATA_RANGE, but not less than 1
SPOT_RANGE=`echo "scale=0; $DATA_RANGE/2" | bc -l`
SPOT_RANGE=`echo "if ($SPOT_RANGE<1) 1;if ($SPOT_RANGE>1) $SPOT_RANGE" | bc -l`

echo DATA_RANGE=1 $DATA_RANGE

# find out detector type
DET=XXX
strings `head -1 tmp1` | egrep -q 'marccd|Corrected' && DET=mccd
strings `head -1 tmp1` | grep -q PILATUS             && DET=pilatus
strings `head -1 tmp1` | grep -q BEAM_CENTER_X       && DET=adsc
# identify other detector types in the same way (MAR IP would be straightforward)

# parse ASCII header of first frame

if [ "$DET" == "XXX" ]; then
  echo "this is not a MAR, ADSC/SMV or PILATUS detector - fill in XXX values manually!"
  DETECTOR="XXX MINIMUM_VALID_PIXEL_VALUE=XXX OVERLOAD=XXX"

# find parameters of first frame
elif [ "$DET" == "mccd" ]; then

  DETECTOR="CCDCHESS MINIMUM_VALID_PIXEL_VALUE= 1 OVERLOAD= 65500"

  # use first frame of dataset to obtain parameters
  MARFRAME=`head -1 tmp1`

  # offsets are documented; values can be find in mccd_xdsparams.pl script
  let SKIP=1024+80
  NX=$(od -t dI --skip-bytes=$SKIP --read-bytes=4 $MARFRAME | head -1 | awk '{print $2}')
  let SKIP=$SKIP+4
  NY=$(od -t dI --skip-bytes=$SKIP --read-bytes=4 $MARFRAME | head -1 | awk '{print $2}')

  let SKIP=1024+256+128+256
  DETECTOR_DISTANCE=$(od -t dI --skip-bytes=$SKIP --read-bytes=4 $MARFRAME | head -1 | awk '{print $2}')
  DETECTOR_DISTANCE=`echo "scale=3; $DETECTOR_DISTANCE/1000" | bc -l`
    
  let SKIP=$SKIP+4
  ORGX=$(od -t dI --skip-bytes=$SKIP --read-bytes=4 $MARFRAME | head -1 | awk '{print $2}')
  ORGX=`echo "scale=2; $ORGX/1000" | bc -l `
  let SKIP=$SKIP+4
  ORGY=$(od -t dI --skip-bytes=$SKIP --read-bytes=4 $MARFRAME | head -1 | awk '{print $2}')
  ORGY=`echo "scale=2; $ORGY/1000" | bc -l `

  let SKIP=1024+256+128+256+44
  PHISTART=$(od -t dI --skip-bytes=$SKIP --read-bytes=4 $MARFRAME | head -1 | awk '{print $2}')
  let SKIP=1024+256+128+256+76
  PHIEND=$(od -t dI --skip-bytes=$SKIP --read-bytes=4 $MARFRAME | head -1 | awk '{print $2}')
  OSCILLATION_RANGE=`echo "scale=3; ($PHIEND-$PHISTART)/1000" | bc -l`
  
  let SKIP=1024+256+128+256+128+4
  QX=$(od -t dI --skip-bytes=$SKIP --read-bytes=4 $MARFRAME | head -1 | awk '{print $2}')
  QX=`echo "scale=10; $QX/1000000" |bc -l `
  let SKIP=$SKIP+4
  QY=$(od -t dI --skip-bytes=$SKIP --read-bytes=4 $MARFRAME | head -1 | awk '{print $2}')
  QY=`echo "scale=10; $QY/1000000" |bc -l `

  let SKIP=1024+256+128+256+128+128+12
  X_RAY_WAVELENGTH=$(od -t dI --skip-bytes=$SKIP --read-bytes=4 $MARFRAME | head -1 | awk '{print $2}')
  X_RAY_WAVELENGTH=`echo "scale=5; $X_RAY_WAVELENGTH/100000" | bc -l`

# at most BLs, ORGX and ORGY are in pixels, but sometimes in mm ... guess:
  NXBYFOUR=`echo "scale=0; $NX/4" | bc -l `
  ORGXINT=`echo "scale=0; $ORGX/1" | bc -l `
  if [ $ORGXINT -lt $NXBYFOUR ]; then
     ORGX=`echo "scale=1; $ORGX/$QX" | bc -l`
     ORGY=`echo "scale=1; $ORGY/$QY" | bc -l`
     echo MARCCD detector: header ORGX, ORGY seem to be in mm ... converting to pixels
  else
     echo MARCCD detector: header ORGX, ORGY seem to be in pixel units
  fi

elif [ "$DET" == "adsc" ]; then

  DETECTOR="ADSC MINIMUM_VALID_PIXEL_VALUE= 1 OVERLOAD= 65000"
  echo this is an ADSC detector. Obtaining ORGX, ORGY from the header depends on beamline setup.
  strings `head -1 tmp1` | sed s/\;// > tmp2

      # find X_RAY_WAVELENGTH:
      X_RAY_WAVELENGTH=`grep WAVELENGTH tmp2 | sed s/WAVELENGTH=//`

      # find NX, QX, ORGX and ORGY:
      NX=`grep SIZE1 tmp2 | tail -1 | sed s/SIZE1=//`
      QX=`grep PIXEL_SIZE tmp2 | sed s/PIXEL_SIZE=//`
      BEAM_CENTER_X=`grep BEAM_CENTER_X tmp2 | sed s/BEAM_CENTER_X=//`
      BEAM_CENTER_Y=`grep BEAM_CENTER_Y tmp2 | sed s/BEAM_CENTER_Y=//`
# fix 2010-04-26 - tell user about possible ORGX, ORGY alternatives -  
# at ESRF and ... (pls fill in!) the following should be used:
      ORGX=`echo "scale=1; $BEAM_CENTER_Y/$QX" | bc -l `
      ORGY=`echo "scale=1; $BEAM_CENTER_X/$QX" | bc -l `
      echo ATTENTION: at ESRF BLs use: ORGX=$ORGX ORGY=$ORGY 
# this 2nd alternative convention should be used at the following beamlines (pls complete the list): ALS 5.0.3, ...
      ORGX=`echo "scale=1; $NX-$BEAM_CENTER_X/$QX" | bc -l `
      ORGY=`echo "scale=1; $BEAM_CENTER_Y/$QX" | bc -l `
      echo ATTENTION: at e.g. ALS 5.0.3 use: ORGX=$ORGX ORGY=$ORGY 
# this 3rd alternative convention should be used at the following beamlines (pls complete the list): ALS 8.2.2, ... 
      ORGX=`echo "scale=1; $BEAM_CENTER_X/$QX" | bc -l `
      ORGY=`echo "scale=1; $NX-$BEAM_CENTER_Y/$QX" | bc -l `
      echo ATTENTION: at e.g. ALS 8.2.2 use: ORGX=$ORGX ORGY=$ORGY - this is now written to XDS.INP
# the latter alternative is written into the generated XDS.INP ! You have to correct this manually in XDS.INP, or adjust this script.
      # find DETECTOR_DISTANCE and OSCILLATION_RANGE:
      DETECTOR_DISTANCE=`grep DISTANCE tmp2 | sed s/DISTANCE=//`
      OSCILLATION_RANGE=`grep OSC_RANGE tmp2 | sed s/OSC_RANGE=//`

elif [ "$DET" == "pilatus" ]; then
  DETECTOR="PILATUS MINIMUM_VALID_PIXEL_VALUE=0 OVERLOAD= 1048576 QX=0.172 QY=0.172 !PILATUS 6M"
  echo this is a Pilatus detector
  head -50 `head -1 tmp1` | sed s/#//> tmp2

      # find X_RAY_WAVELENGTH:
      X_RAY_WAVELENGTH=`grep Wavelength tmp2 | sed -e s/Wavelength// -e s/A// | awk '{print $1}'`

      # find ORGX and ORGY:
      ORGX=`grep Beam_xy tmp2 | sed -e s/\(// -e s/\)// -e s/\,// | awk '{print $2}'`
      ORGY=`grep Beam_xy tmp2 | sed -e s/\(// -e s/\)// -e s/\,// | awk '{print $3}'`

      # find DETECTOR_DISTANCE and OSCILLATION_RANGE:
      DETECTOR_DISTANCE=`awk '/distance/{print $2}' tmp2`
      DETECTOR_DISTANCE=`echo "$DETECTOR_DISTANCE*1000" | bc -l`

      OSCILLATION_RANGE=`awk '/Angle/{print $2}' tmp2`

else
  echo should never come here
  exit 1
fi

echo ORGX= $ORGX ORGY= $ORGY - check these values with adxv !
echo DETECTOR_DISTANCE= $DETECTOR_DISTANCE
echo OSCILLATION_RANGE= $OSCILLATION_RANGE
echo X-RAY_WAVELENGTH= $X_RAY_WAVELENGTH

# now we know everything that is required to generate XDS.INP

cat > XDS.INP << eof
JOB= XYCORR INIT COLSPOT IDXREF DEFPIX INTEGRATE CORRECT
ORGX= $ORGX ORGY= $ORGY  ! check these values with adxv !
DETECTOR_DISTANCE= $DETECTOR_DISTANCE
OSCILLATION_RANGE= $OSCILLATION_RANGE
X-RAY_WAVELENGTH= $X_RAY_WAVELENGTH
NAME_TEMPLATE_OF_DATA_FRAMES=$NAME_TEMPLATE_OF_DATA_FRAMES
! REFERENCE_DATA_SET=xxx/XDS_ASCII.HKL ! e.g. to ensure consistent indexing  
DATA_RANGE=1 $DATA_RANGE
SPOT_RANGE=1 $SPOT_RANGE
! BACKGROUND_RANGE=1 10 ! rather use defaults (first 5 degree of rotation)

SPACE_GROUP_NUMBER=0                   ! 0 if unknown
UNIT_CELL_CONSTANTS= 70 80 90 90 90 90 ! put correct values if known
INCLUDE_RESOLUTION_RANGE=50 0  ! after CORRECT, insert high resol limit; re-run CORRECT


FRIEDEL'S_LAW=FALSE     ! This acts only on the CORRECT step
! If the anom signal turns out to be, or is known to be, very low or absent,
! use FRIEDEL'S_LAW=TRUE instead (or comment out the line); re-run CORRECT

! remove the "!" in the following line:
! STRICT_ABSORPTION_CORRECTION=TRUE
! if the anomalous signal is strong: in that case, in CORRECT.LP the three
! "CHI^2-VALUE OF FIT OF CORRECTION FACTORS" values are significantly> 1, e.g. 1.5
!
! exclude (mask) untrusted areas of detector, e.g. beamstop shadow :
! UNTRUSTED_RECTANGLE= 1800 1950 2100 2150 ! x-min x-max y-min y-max ! repeat
! UNTRUSTED_ELLIPSE= 2034 2070 1850 2240 ! x-min x-max y-min y-max ! if needed
!
! parameters with changes wrt default values:
TRUSTED_REGION=0.00 1.2  ! partially use corners of detectors; 1.41421=full use
VALUE_RANGE_FOR_TRUSTED_DETECTOR_PIXELS=7000. 30000. ! often 8000 is ok
MINIMUM_ZETA=0.05        ! integrate close to the Lorentz zone; 0.15 is default
STRONG_PIXEL=6           ! COLSPOT: only use strong reflections (default is 3)
REFINE(INTEGRATE)=CELL BEAM ORIENTATION ! AXIS DISTANCE 

! parameters specifically for this detector and beamline:
DETECTOR= $DETECTOR
!NX= 3072 NY= 3072  QX= 0.10260  QY= 0.10260 ! XDS finds this out by itself (not for Pilatus)
DIRECTION_OF_DETECTOR_X-AXIS=1 0 0
DIRECTION_OF_DETECTOR_Y-AXIS=0 1 0
INCIDENT_BEAM_DIRECTION=0 0 1
ROTATION_AXIS=1 0 0    ! at e.g. SERCAT ID-22 this needs to be -1 0 0
FRACTION_OF_POLARIZATION=0.98   ! better value is provided by beamline staff!
POLARIZATION_PLANE_NORMAL=0 1 0
eof
echo XDS.INP is ready for use. The file has only the most important keywords.
echo After running xds, inspect at least BKGPIX.cbf and FRAME.cbf with XDS-Viewer!
rm -f tmp1 tmp2