add vcglib

vcglib/apps/sample/trimesh_base/CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.13)
+project(trimesh_base)
+
+if (VCG_HEADER_ONLY)
+	set(SOURCES
+		trimesh_base.cpp)
+endif()
+
+add_executable(trimesh_base
+	${SOURCES})
+
+target_link_libraries(
+	trimesh_base
+	PUBLIC
+		vcglib
+	)

vcglib/apps/sample/trimesh_base/trimesh_base.cpp

@@ -0,0 +1,75 @@
+/****************************************************************************
+* VCGLib                                                            o o     *
+* Visual and Computer Graphics Library                            o     o   *
+*                                                                _   O  _   *
+* Copyright(C) 2004-2016                                           \/)\/    *
+* Visual Computing Lab                                            /\/|      *
+* ISTI - Italian National Research Council                           |      *
+*                                                                    \      *
+* All rights reserved.                                                      *
+*                                                                           *
+* This program is free software; you can redistribute it and/or modify      *
+* it under the terms of the GNU General Public License as published by      *
+* the Free Software Foundation; either version 2 of the License, or         *
+* (at your option) any later version.                                       *
+*                                                                           *
+* This program is distributed in the hope that it will be useful,           *
+* but WITHOUT ANY WARRANTY; without even the implied warranty of            *
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the             *
+* GNU General Public License (http://www.gnu.org/licenses/gpl.txt)          *
+* for more details.                                                         *
+*                                                                           *
+****************************************************************************/
+/*! \file trimesh_base.cpp
+\ingroup code_sample
+
+\brief the minimal example of using the lib
+
+This file contain a minimal example of the library, showing how to load a mesh and how to compute per vertex normals on it.
+
+*/
+
+#include<vcg/complex/complex.h>
+#include<wrap/io_trimesh/import_off.h>
+
+class MyVertex; class MyEdge; class MyFace;
+struct MyUsedTypes : public vcg::UsedTypes<vcg::Use<MyVertex>   ::AsVertexType,
+                                           vcg::Use<MyEdge>     ::AsEdgeType,
+                                           vcg::Use<MyFace>     ::AsFaceType>{};
+
+class MyVertex  : public vcg::Vertex< MyUsedTypes, vcg::vertex::Coord3f, vcg::vertex::Normal3f, vcg::vertex::BitFlags  >{};
+class MyFace    : public vcg::Face<   MyUsedTypes, vcg::face::FFAdj,  vcg::face::VertexRef, vcg::face::BitFlags > {};
+class MyEdge    : public vcg::Edge<   MyUsedTypes> {};
+
+class MyMesh    : public vcg::tri::TriMesh< std::vector<MyVertex>, std::vector<MyFace> , std::vector<MyEdge>  > {};
+
+class MyVertex0  : public vcg::Vertex< MyUsedTypes, vcg::vertex::Coord3f, vcg::vertex::BitFlags  >{};
+class MyVertex1  : public vcg::Vertex< MyUsedTypes, vcg::vertex::Coord3f, vcg::vertex::Normal3f, vcg::vertex::BitFlags  >{};
+class MyVertex2  : public vcg::Vertex< MyUsedTypes, vcg::vertex::Coord3f, vcg::vertex::Color4b, vcg::vertex::CurvatureDirf,
+                                                    vcg::vertex::Qualityf, vcg::vertex::Normal3f, vcg::vertex::BitFlags  >{};
+
+
+int main( int argc, char **argv )
+{
+  if(argc<2)
+  {
+    printf("Usage trimesh_base <meshfilename.obj>\n");
+    return -1;
+  }
+  /*!
+    */
+  MyMesh m;
+
+  if(vcg::tri::io::ImporterOFF<MyMesh>::Open(m,argv[1])!=vcg::tri::io::ImporterOFF<MyMesh>::NoError)
+  {
+    printf("Error reading file  %s\n",argv[1]);
+    exit(0);
+  }
+
+  vcg::tri::RequirePerVertexNormal(m);
+  vcg::tri::UpdateNormal<MyMesh>::PerVertexNormalized(m);
+  printf("Input mesh  vn:%i fn:%i\n",m.VN(),m.FN());
+  printf( "Mesh has %i vert and %i faces\n", m.VN(), m.FN() );
+
+  return 0;
+}

vcglib/apps/sample/trimesh_base/trimesh_base.pro

@@ -0,0 +1,3 @@
+include(../common.pri)
+TARGET = trimesh_base
+SOURCES += trimesh_base.cpp