diff --git a/apps/sample/trimesh_base/trimesh_definition.cpp b/apps/sample/trimesh_base/trimesh_definition.cpp
new file mode 100644
index 00000000..f62d7d9c
--- /dev/null
+++ b/apps/sample/trimesh_base/trimesh_definition.cpp
@@ -0,0 +1,22 @@
+#include <vector>
+
+#include <vcg/simplex/vertexplus/base.h>   
+#include <vcg/simplex/vertexplus/component.h>   
+#include <vcg/simplex/faceplus/base.h>   
+#include <vcg/simplex/faceplus/component.h>   
+
+#include <vcg/complex/trimesh/base.h>   
+
+class MyEdge;
+class MyFace;
+
+class MyVertex: public vcg::VertexSimp2<MyVertex,MyEdge,MyFace, vcg::vert::Coord3d, vcg::vert::Normal3f>{};
+class MyFace: public vcg::FaceSimp2<MyVertex,MyEdge,MyFace, vcg::face::VertexRef>{};
+
+class MyMesh: public vcg::tri::TriMesh< std::vector<MyVertex>, std::vector<MyFace> > {};
+
+int main()
+{
+	MyMesh m;
+	return 0;
+}
\ No newline at end of file