From dd6b572ab03a605da7379c29d3d0bb6b00280cbb Mon Sep 17 00:00:00 2001 From: Hugo Ledoux Date: Tue, 26 Nov 2024 08:41:40 +0100 Subject: [PATCH] Fix typo spotted by @MCHU-1999 Fixes #55 --- topofeatures/topofeatures.tex | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/topofeatures/topofeatures.tex b/topofeatures/topofeatures.tex index ecf4251..dfda0a2 100755 --- a/topofeatures/topofeatures.tex +++ b/topofeatures/topofeatures.tex @@ -246,7 +246,7 @@ \subsection{Curvature}% If there is no contour segment, then $v$ is either a peak or a pit. A peak will be profile and plan convex; a pit will be profile and plan concave. -If there are 2 segments, then we can use these to estimate the direction of the aspect, it will be perpendicular (thus the bisector between the 2 segments is a good estimate) in the direction or lower elevations. +If there are 2 segments, then we can use these to estimate the direction of the aspect, it will be perpendicular (thus the bisector between the 2 segments is a good estimate) in the direction of lower elevations. If we simply look at the elevations higher and lower than $v$ along this direction, then we can easily verify whether $v$ is profile convex or concave. For the plan curvature, we can simply walk along one of the 2 edges so that higher elevations are on our left, $v$ is plan convex if the contour line makes a left turn at $v$, if it makes a right turn it is concave, and if it is straight then it is plan flat.