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authorThomas White <taw@physics.org>2021-01-06 15:03:26 +0100
committerThomas White <taw@physics.org>2021-01-06 15:03:26 +0100
commit6445bd6887ac815d07f38692a98d0b1dd166fed6 (patch)
tree2b994b2da95a326ad663627e7565c83cb03cb161 /libcrystfel/src/cell-utils.h
parentd7adbd7e4a316cbb7d9fd9ca2fef234239e62797 (diff)
partialator: Reject crystals with obviously too large profile radii
The criterion for "too large" is 20% of the 1/d value for the lowest reflection which is not systematically absent according to the centering. A profile radius larger than the 1/d value for a reflection will crash the xsphere partiality model, and some visualisation shows that this is a clearly non-physical situation. The profile radius shouldn't be anywhere near the inter-Bragg spacing for reasonable data. However, feedback shows that this is happening quite often in real data, probably due to bad indexing.
Diffstat (limited to 'libcrystfel/src/cell-utils.h')
-rw-r--r--libcrystfel/src/cell-utils.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/libcrystfel/src/cell-utils.h b/libcrystfel/src/cell-utils.h
index 00563ee6..0a110bf2 100644
--- a/libcrystfel/src/cell-utils.h
+++ b/libcrystfel/src/cell-utils.h
@@ -3,7 +3,7 @@
*
* Unit Cell utility functions
*
- * Copyright © 2012-2020 Deutsches Elektronen-Synchrotron DESY,
+ * Copyright © 2012-2021 Deutsches Elektronen-Synchrotron DESY,
* a research centre of the Helmholtz Association.
* Copyright © 2012 Lorenzo Galli
*
@@ -79,6 +79,8 @@ extern int forbidden_reflection(UnitCell *cell,
extern double cell_get_volume(UnitCell *cell);
+extern double lowest_reflection(UnitCell *cell);
+
extern int compare_cell_parameters(UnitCell *cell, UnitCell *reference,
const double *tols);