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authorRichard A. Kirian <rkirian@asu.edu>2012-01-27 17:04:09 -0800
committerThomas White <taw@physics.org>2012-02-22 15:27:44 +0100
commitb2a9f6fbde9564fdbb0909e20c2fe5538f0f7686 (patch)
tree42a027564e582ad6b6ba9ef250b0a9f8b79143f6
parent252cca2f0ceb760e2a491e25b2ae6e5a2cbeb640 (diff)
hdfsee: document --show-rings and --simple-rings options
-rw-r--r--src/hdfsee.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/hdfsee.c b/src/hdfsee.c
index 73373928..0ec15212 100644
--- a/src/hdfsee.c
+++ b/src/hdfsee.c
@@ -44,6 +44,9 @@ static void show_help(const char *s)
" sets all pixels in each 3x3 region to\n"
" zero if any of them have negative\n"
" values.\n"
+" --show-rings Overlay rings that indicate resolution.\n"
+" --simple-rings=XX,YY,... Overlay rings at specified radii XX, YY, ...\n"
+" in pixel units.\n"
" -c, --colscale=<scale> Use the given colour scale. Choose from:\n"
" mono : Greyscale, black is zero.\n"
" invmono : Greyscale, white is zero.\n"