From aada1502e45cdcf63282ae9e4bebc8b00cd1a02e Mon Sep 17 00:00:00 2001
From: nico <nico.pietroni@gmail.com>
Date: Thu, 4 May 2017 03:13:08 +0200
Subject: [PATCH] added the possibility of preserving corners of the triangle
 mesh during the quadrangulation

---
 vcg/complex/algorithms/quadrangulator.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/vcg/complex/algorithms/quadrangulator.h b/vcg/complex/algorithms/quadrangulator.h
index b3f7d057..46ce0831 100644
--- a/vcg/complex/algorithms/quadrangulator.h
+++ b/vcg/complex/algorithms/quadrangulator.h
@@ -671,7 +671,8 @@ public:
 
     void Quadrangulate(TriMesh &Tmesh,
                        PolyMesh &Pmesh,
-                       std::vector< std::vector< short int> > &UV)
+                       std::vector< std::vector< short int> > &UV,
+                       bool preserve_border_corner=true)
     {
         UV.clear();
         Pmesh.Clear();
@@ -714,6 +715,9 @@ public:
         for (int i=0;i<Tmesh.face.size();i++)
             Tmesh.face[i].C()=vcg::Color4b(255,255,255,255);
 
+        if (preserve_border_corner)
+            vcg::tri::UpdateSelection<TriMesh>::VertexCornerBorder(Tmesh,math::ToRad(150.0),true);
+
         std::vector<std::vector<TriVertexType *> > polygons;
         FindPolygons(Tmesh,polygons,UV);