add custom property support for PLY reader ASCII version

git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@1181 fdac6126-5c0c-442c-9429-916003d36597

src/OpenMesh/Core/IO/importer/BaseImporter.hh

@@ -89,6 +89,9 @@ public:
   // add a vertex with coordinate \c _point
   virtual VertexHandle add_vertex(const Vec3f& _point) = 0;
 
+  // add a vertex without coordinate. Use set_point to set the position deferred
+  virtual VertexHandle add_vertex() = 0;
+
   // add a face with indices _indices refering to vertices
   typedef std::vector<VertexHandle> VHandles;
   virtual FaceHandle add_face(const VHandles& _indices) = 0;
@@ -99,6 +102,9 @@ public:
   // Set the texture index for a face
   virtual void set_face_texindex( FaceHandle _fh, int _texId ) = 0;
 
+  // Set coordinate of the given vertex. Use this function, if you created a vertex without coordinate
+  virtual void set_point(VertexHandle _vh, const Vec3f& _point) = 0;
+
   // set vertex normal
   virtual void set_normal(VertexHandle _vh, const Vec3f& _normal) = 0;
 

src/OpenMesh/Core/IO/importer/ImporterT.hh

@@ -94,6 +94,10 @@ public:
     return mesh_.add_vertex(vector_cast<Point>(_point));
   }
 
+  virtual VertexHandle add_vertex()
+  {
+    return mesh_.new_vertex();
+  }
 
   virtual FaceHandle add_face(const VHandles& _indices)
   {
@@ -154,6 +158,11 @@ public:
 
   // vertex attributes
 
+  virtual void set_point(VertexHandle _vh, const Vec3f& _point)
+  {
+    mesh_.set_point(_vh,vector_cast<Point>(_point));
+  }
+
   virtual void set_normal(VertexHandle _vh, const Vec3f& _normal)
   {
     if (mesh_.has_vertex_normals())