From b5b314b7eb32dcf1f0a7e5d5f428e6e2e5f8f4ff Mon Sep 17 00:00:00 2001 From: Thomas White Date: Thu, 22 Sep 2022 14:14:00 +0200 Subject: speed.rst: Add a note about static detector geometry --- doc/articles/speed.rst | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'doc') diff --git a/doc/articles/speed.rst b/doc/articles/speed.rst index f4c4808d..5b3a8fbd 100644 --- a/doc/articles/speed.rst +++ b/doc/articles/speed.rst @@ -127,3 +127,13 @@ you limit the resolution at the integration stage, the number of reflections to be integrated will be much smaller, which can lead to a significant speed improvement. However, the ``--push-res`` value that you use for merging must be smaller than the value used for integration. + + +Use a static detector geometry +============================== + +CrystFEL geometry files allow some aspects of the geometry to come from the +data files, such as the panel z-positions ("clen"/camera length) and overall +detector shifts. If you can instead give fixed numerical values for +everything, then some parts of CrystFEL can prepare calculations in advance. +In some cases, this can make a significant speed improvement. -- cgit v1.2.3