From 53da9a97e15e4474c3aa81f78f42821d3ebe63f4 Mon Sep 17 00:00:00 2001
From: cignoni <paolo.cignoni@isti.cnr.it>
Date: Fri, 17 Jun 2005 00:49:29 +0000
Subject: [PATCH] Added missing Sphere function

---
 vcg/complex/trimesh/create/platonic.h | 47 +++++++++++++++++----------
 1 file changed, 29 insertions(+), 18 deletions(-)

diff --git a/vcg/complex/trimesh/create/platonic.h b/vcg/complex/trimesh/create/platonic.h
index 7dcc962a..1366519e 100644
--- a/vcg/complex/trimesh/create/platonic.h
+++ b/vcg/complex/trimesh/create/platonic.h
@@ -24,6 +24,9 @@
   History
 
 $Log: not supported by cvs2svn $
+Revision 1.2  2005/02/25 11:41:08  pietroni
+Fixed bug in Square
+
 Revision 1.1  2005/01/19 15:43:15  fiorin
 Moved from vcg/complex/trimesh to vcg/complex/trimesh/create
 
@@ -54,8 +57,11 @@ First working version (tetrahedron!)
 #ifndef __VCGLIB_PLATONIC
 #define __VCGLIB_PLATONIC
 
-#include<vcg/complex/trimesh/allocate.h>
 #include<vcg/math/base.h>
+#include<vcg/complex/trimesh/allocate.h>
+#include<vcg/complex/trimesh/refine.h>
+#include<vcg/complex/trimesh/update/flag.h>
+
 namespace vcg {
 namespace tri {
 /** \addtogroup trimesh */
@@ -358,23 +364,28 @@ void Square(MeshType &in)
  (*fi).V(0)=ivp[0];  (*fi).V(1)=ivp[2]; (*fi).V(2)=ivp[3]; 
 }
 
-//template <class MESH_TYPE>
-//void Sphere(MESH_TYPE &in, const int subdiv = 3 )
-//{
-//	Icosahedron(in);
-//	in.ComputeBorderFlag();
-//	int lastsize = 0;
-//	for(int i=0;i<subdiv;++i)
-//	{
-//		Refine<MESH_TYPE, MidPoint<MESH_TYPE> >(in,MidPoint<MESH_TYPE>(),0);
-//		MESH_TYPE::vertex_iterator vi;
-//
-//		for(vi = in.vert.begin()+lastsize;vi!=in.vert.end();++vi)
-//			vi->P().Normalize();
-//
-//		lastsize = in.vert.size();
-//	}
-//}
+// this function build a sphere starting from a possibly not empty mesh.
+// if the mesh is not empty it is used as base for the subdivision process.
+// otherwise an icosahedron is used.
+template <class MESH_TYPE>
+void Sphere(MESH_TYPE &in, const int subdiv = 3 )
+{
+	if(in.vn==0 && in.fn==0) Icosahedron(in);
+	//in.ComputeBorderFlag();
+  tri::UpdateFlags<AMesh>::FaceBorderFromNone(in);
+      
+	int lastsize = 0;
+	for(int i=0;i<subdiv;++i)
+	{
+		Refine<MESH_TYPE, MidPoint<MESH_TYPE> >(in,MidPoint<MESH_TYPE>(),0);
+		MESH_TYPE::VertexIterator vi;
+
+		for(vi = in.vert.begin()+lastsize;vi!=in.vert.end();++vi)
+			vi->P().Normalize();
+
+		lastsize = in.vert.size();
+	}
+}
 
 
 	/// r1 = raggio 1, r2 = raggio2, h = altezza (asse y)