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-rw-r--r--grapheps.txi12
1 files changed, 6 insertions, 6 deletions
diff --git a/grapheps.txi b/grapheps.txi
index afa5ede..a889dd0 100644
--- a/grapheps.txi
+++ b/grapheps.txi
@@ -337,13 +337,13 @@ and numeric legends are on the right.
@end defun
-@defun rule-horizontal x-coord text tick-height
+@defun rule-horizontal y-coord text tick-height
-Draws a horizontal ruler with X coordinate @var{x-coord} and labeled with
-string @var{text}. If @var{tick-height} is positive, then the ticks are @var{tick-height} long on the
-right side of @var{x-coord}; and @var{text} and numeric legends are on the left. If @var{tick-height}
-is negative, then the ticks are -@var{tick-height} long on the left side of @var{x-coord}; and
-@var{text} and numeric legends are on the right.
+Draws a horizontal ruler with Y coordinate @var{y-coord} and labeled with
+string @var{text}. If @var{tick-height} is positive, then the ticks are @var{tick-height} long on the top
+side of @var{y-coord}; and @var{text} and numeric legends are on the bottom. If @var{tick-height} is
+negative, then the ticks are -@var{tick-height} long on the bottom side of @var{y-coord}; and
+@var{text} and numeric legends are on the top.
@end defun