add methods to import to set positions and normals from doubles

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

@@ -91,6 +91,9 @@ public:
   // add a vertex with coordinate \c _point
   virtual VertexHandle add_vertex(const Vec3f& _point) = 0;
 
+  // add a vertex with coordinate \c _point
+  virtual VertexHandle add_vertex(const Vec3d& _point) { return add_vertex(Vec3f(_point)); }
+
   // add a vertex without coordinate. Use set_point to set the position deferred
   virtual VertexHandle add_vertex() = 0;
 
@@ -122,6 +125,9 @@ public:
   // set vertex normal
   virtual void set_normal(VertexHandle _vh, const Vec3f& _normal) = 0;
 
+  // set vertex normal
+  virtual void set_normal(VertexHandle _vh, const Vec3d& _normal) { set_normal(_vh, Vec3f(_normal)); }
+
   // set vertex color
   virtual void set_color(VertexHandle _vh, const Vec3uc& _color) = 0;
 

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

@@ -97,6 +97,11 @@ public:
     return mesh_.add_vertex(vector_cast<Point>(_point));
   }
 
+  virtual VertexHandle add_vertex(const Vec3d& _point) override
+  {
+    return mesh_.add_vertex(vector_cast<Point>(_point));
+  }
+
   virtual VertexHandle add_vertex() override
   {
     return mesh_.new_vertex();
@@ -222,6 +227,17 @@ public:
       halfedgeNormals_[_vh] = vector_cast<Normal>(_normal);
   }
 
+  virtual void set_normal(VertexHandle _vh, const Vec3d& _normal) override
+  {
+    if (mesh_.has_vertex_normals())
+      mesh_.set_normal(_vh, vector_cast<Normal>(_normal));
+
+    //saves normals for half edges.
+    //they will be written, when the face is added
+    if (mesh_.has_halfedge_normals())
+      halfedgeNormals_[_vh] = vector_cast<Normal>(_normal);
+  }
+
   virtual void set_color(VertexHandle _vh, const Vec4uc& _color) override
   {
     if (mesh_.has_vertex_colors())