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-rw-r--r--src/indexamajig.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/indexamajig.c b/src/indexamajig.c
index 9bdfa5e0..5a47254f 100644
--- a/src/indexamajig.c
+++ b/src/indexamajig.c
@@ -52,6 +52,11 @@ static void show_help(const char *s)
" --gpu Use the GPU to speed up the simulation.\n"
"\n"
" --near-bragg Output a list of reflection intensities to stdout.\n"
+" The intensities in this list are the sum of\n"
+" the values in a 7x7 square centered on the pixel\n"
+" closest to the Bragg condition. Only pixels with\n"
+" fractional indices within 0.1 of the Bragg\n"
+" condition will be counted.\n"
" --simulate Simulate the diffraction pattern using the indexed\n"
" unit cell.\n"
" --filter-cm Perform common-mode noise subtraction on images\n"
@@ -67,6 +72,8 @@ static void show_help(const char *s)
" 'none'. Beware: the units in this file are\n"
" reciprocal Angstroms.\n"
" --dump-peaks Write the results of the peak search to stdout.\n"
+" The intensities in this list are from the\n"
+" centroid/integration procedure.\n"
" --no-match Don't attempt to match the indexed cell to the\n"
" model, just proceed with the one generated by the\n"
" auto-indexing procedure.\n"