From 54d19e3059db1c92b42a7bdc8d2052d450153c0e Mon Sep 17 00:00:00 2001
From: Luigi Malomo <malomo.luigi@gmail.com>
Date: Thu, 5 Apr 2018 18:43:05 +0200
Subject: [PATCH] added function to compute mesh boundary length

---
 vcg/complex/algorithms/stat.h | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/vcg/complex/algorithms/stat.h b/vcg/complex/algorithms/stat.h
index 8b3c8d90..ca1f3de5 100644
--- a/vcg/complex/algorithms/stat.h
+++ b/vcg/complex/algorithms/stat.h
@@ -212,6 +212,21 @@ public:
     return area/ScalarType(2.0);
   }
 
+	static ScalarType ComputeBorderLength(MeshType & m)
+	{
+		RequireFFAdjacency(m);
+		ScalarType sum = 0;
+		tri::UpdateTopology<MeshType>::FaceFace(m);
+		ForEachFace(m, [&](FaceType &f) {
+			for (int k=0; k<f.VN(); k++)
+				if (face::IsBorder(f, k))
+				{
+					sum += Distance(f.cP(k), f.cP(1));
+				}
+		});
+		return sum;
+	}
+
   static void ComputePerVertexQualityDistribution( MeshType & m, Distribution<ScalarType> &h, bool selectionOnly = false)    // V1.0
   {
     tri::RequirePerVertexQuality(m);