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Finding out ORGX ORGY: Difference between revisions
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# use the Unix command line tools to look at the header of the frame. E.g. "strings <frame-name>|more" would should you the (hopefully correct) information stored in the header, like wavelength, delta-phi, X and Y beamcentre and so on. | # use the Unix command line tools to look at the header of the frame. E.g. "strings <frame-name>|more" would should you the (hopefully correct) information stored in the header, like wavelength, delta-phi, X and Y beamcentre and so on. | ||
The error you make in the determination of ORGX ORGY should in principle be less than half of the distance between two spots. If you have a reasonable estimate (from one of the methods above), but the error is bigger than that, ''you can still find out the true ORGY ORGY by inspecting [[IDXREF.LP]] . This works best if [[COLSPOT]] has seen a significant fraction of all frames.'' | The error you make in the determination of ORGX ORGY should in principle be less than half of the distance between two spots. If you have a reasonable estimate (from one of the methods above), but the error is bigger than that, ''you can still find out the true ORGY ORGY by inspecting [[IDXREF.LP]] . This works best if [[COLSPOT]] has seen a significant fraction of all frames.'' This procedure is [[Thaumatin_ACA2014#Digression:_a_computational_investigation_into_the_robustness_of_the_indexing|documented]]. | ||