From 7b7fdcdcfead843e399644e0ca6f7e4bc649a51b Mon Sep 17 00:00:00 2001
From: Dario Sassi <dario.s@egaltech.com>
Date: Tue, 1 Apr 2014 07:38:24 +0000
Subject: [PATCH] Include : - aggiunti triangoli.

---
 EGkTriangle3d.h  | 53 ++++++++++++++++++++++++++++++++++++++++++++++++
 EgkSurfTriMesh.h | 10 +++++++--
 2 files changed, 61 insertions(+), 2 deletions(-)
 create mode 100644 EGkTriangle3d.h

diff --git a/EGkTriangle3d.h b/EGkTriangle3d.h
new file mode 100644
index 0000000..d570091
--- /dev/null
+++ b/EGkTriangle3d.h
@@ -0,0 +1,53 @@
+//----------------------------------------------------------------------------
+//  EgalTech 2014-2014
+//----------------------------------------------------------------------------
+// File : EGkTria3d.h           Data : 30.03.14          Versione : 1.5c9
+// Contenuto : Dichiarazione classe triangolo Triangle3d.
+//
+//
+//
+// Modifiche : 30.03.14 DS Creazione modulo.
+//
+//
+//----------------------------------------------------------------------------
+
+#pragma once
+
+#include "/EgtDev/Include/EGkPoint3d.h"
+
+//-----------------------------------------------------------------------------
+class Triangle3d
+{
+   public :
+      Triangle3d( void)
+              {}
+      void Set( const Point3d& ptP0, const Point3d& ptP1, const Point3d& ptP2) 
+              { ptP[0] = ptP0 ; ptP[1] = ptP1 ; ptP[2] = ptP2 ; vtN.Set( 0, 0, 0) ; }
+      void Set( const Point3d& ptP0, const Point3d& ptP1, const Point3d& ptP2, const Vector3d& vtV) 
+              { ptP[0] = ptP0 ; ptP[1] = ptP1 ; ptP[2] = ptP2 ; vtN = vtV ; }
+      bool Validate( void)
+              { if ( AreSamePointNear( ptP[0], ptP[1])  ||  AreSamePointNear( ptP[0], ptP[2]))
+                   return false ;
+                Vector3d vtV = ( ptP[1] - ptP[0]) ^ ( ptP[2] - ptP[0]) ;
+                vtV.Normalize() ;
+                if ( ! vtN.IsZero())
+                   return AreSameVectorNear( vtV, vtN) ;
+                vtN = vtV ;
+                return true ;
+              }
+      const Point3d& GetP( int nId) const
+              { if ( nId >= 0  &&  nId < 3)
+                   return ptP[nId] ;
+                else if ( nId < 0)
+                   return ptP[0] ;
+                else
+                   return ptP[2] ;
+              }
+      const Vector3d& GetN( void) const
+              { return vtN ; }
+
+   private :
+      Point3d  ptP[3] ;
+      Vector3d vtN ;
+} ;
+
diff --git a/EgkSurfTriMesh.h b/EgkSurfTriMesh.h
index bc08e25..7757664 100644
--- a/EgkSurfTriMesh.h
+++ b/EgkSurfTriMesh.h
@@ -14,6 +14,7 @@
 #pragma once
 
 #include "/EgtDev/Include/EGkSurf.h"
+#include "/EgtDev/Include/EGkTriangle3d.h"
 
 //----------------------------------------------------------------------------
 class __declspec( novtable) ISurfTriMesh : public ISurf
@@ -23,8 +24,13 @@ class __declspec( novtable) ISurfTriMesh : public ISurf
       virtual bool Init( int nNumVert, int nNumTria) = 0 ;
       virtual int AddVertex( const Point3d& ptVert) = 0 ;
       virtual int AddTriangle( const int nIdVert[3]) = 0 ;
-      virtual int GetFirstTriangle( Point3d& ptP0, Point3d& ptP1, Point3d& ptP2) const = 0 ; 
-      virtual int GetNextTriangle( int nId, Point3d& ptP0, Point3d& ptP1, Point3d& ptP2) const = 0 ; 
+      virtual bool AdjustTopology( void) = 0 ;
+      virtual int GetVertexNum( void) const = 0 ;
+      virtual int GetTriangleNum( void) const = 0 ;
+      virtual int GetFirstVertex( Point3d& ptP) const = 0 ;
+      virtual int GetNextVertex( int nId, Point3d& ptP) const = 0 ;
+      virtual int GetFirstTriangle( Triangle3d& Tria) const = 0 ; 
+      virtual int GetNextTriangle( int nId, Triangle3d& Tria) const = 0 ; 
 } ;
 
 //-----------------------------------------------------------------------------