From a8220b3bdacc6ac8e0a3eea072bf1b6df8b9b879 Mon Sep 17 00:00:00 2001
From: Paolo Cignoni <paolo.cignoni@isti.cnr.it>
Date: Tue, 5 Sep 2017 00:36:53 +0200
Subject: [PATCH] Added ForEachEdge helper

---
 vcg/complex/foreach.h | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/vcg/complex/foreach.h b/vcg/complex/foreach.h
index 61a70de3..15180e5c 100644
--- a/vcg/complex/foreach.h
+++ b/vcg/complex/foreach.h
@@ -127,6 +127,34 @@ inline void ForEachVertex(MeshType &m, std::function<void (typename MeshType::Ve
   }
 }
 
+/**
+ * ForEachEdge Helper
+ * to traverse all the vertexes of a mesh you can simply write something like:
+ * 
+ *      ForEachEdge(m, [&](const EdgeType &e){
+ *         MakeSomethingWithEdge(e);
+ *      });
+ *  
+ */
+
+template <class MeshType>
+inline void ForEachEdge(MeshType &m, std::function<void (typename MeshType::EdgeType &)> action)
+{
+  if(m.en == (int) m.edge.size())
+  {
+    for(auto ei=m.edge.begin();ei!=m.edge.end();++ei) {
+      action(*ei);
+    }       
+  }
+  else
+  {
+    for(auto ei=m.edge.begin();ei!=m.edge.end();++ei)
+      if(!(*ei).IsD())
+      {
+        action(*ei);
+      }    
+  }
+}