Diffraction Image Library
F. Remacle & G. Winter
What is it?
• A C++ library to access data of various
formats of diffraction images in a
standard way.
• Originally developed for DNA and XIA,
now being developed further as part of
the CCP4 library.
What can be done with it?
• Reading images from the following
detectors:
– ADSC (all)
– Rigaku: R-AXIS IV, SATURN
– Mar: MAR300, MAR345, MARCCD
– CBF (in development)
– Bruker
What can be done with it?
• Access to “standard” information
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Beam centre coordinates
Distance to detector
Wavelength
2 Theta value
Exposure time
Image size
Collection time
Pixel size
Oscillation range
Image data (pixel values)
What can be done with it?
• Different calculations (histogram,
asymmetry, corner, radial profile, gain)
• Writing image data as jpeg or ppm.
• Peak finding and other peak operations
with the PeakList object.
• Available as Tcl and Python modules!
Who is using it?
• Me, for writing a Tcl new version of
ipdisp. Now called idiffdisp.
• xia2 currently wraps compiled
programs built on the library, but will
use the python module directly in the
future.
idiffdisp