From 3382182dab76c7f9f3aacd7643c8dc51562c0040 Mon Sep 17 00:00:00 2001
From: "J. Derek Tukcer" <jdtuck@sandia.gov>
Date: Sun, 25 Oct 2020 19:37:00 -0600
Subject: [PATCH] add check to make sure sampling of curve is clock-wise

mostly useful when resampling an entire data set to make sure sampling is the same direction
---
 ReSampleCurve.m | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ReSampleCurve.m b/ReSampleCurve.m
index 7476087..3679cd8 100644
--- a/ReSampleCurve.m
+++ b/ReSampleCurve.m
@@ -20,6 +20,10 @@
 [n,T] = size(X);
 del = zeros(1,T);
 del(1) = 0;
+tst = X(:,2)-X(:,1);
+if tst(1) < 0
+    X = fliplr(X);
+end
 for r = 2:T
     del(r) = norm(X(:,r) - X(:,r-1));
 end