From 337fb4571deb7b02f49312f58e962053361a0fba Mon Sep 17 00:00:00 2001
From: Max Lyon <lyon@cs.rwth-aachen.de>
Date: Wed, 5 Feb 2020 22:12:53 +0100
Subject: [PATCH] add methods to import to set positions and normals from
 doubles

---
 src/OpenMesh/Core/IO/importer/BaseImporter.hh |  6 ++++++
 src/OpenMesh/Core/IO/importer/ImporterT.hh    | 16 ++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/src/OpenMesh/Core/IO/importer/BaseImporter.hh b/src/OpenMesh/Core/IO/importer/BaseImporter.hh
index ff86dadd..8f66ba24 100644
--- a/src/OpenMesh/Core/IO/importer/BaseImporter.hh
+++ b/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;
 
diff --git a/src/OpenMesh/Core/IO/importer/ImporterT.hh b/src/OpenMesh/Core/IO/importer/ImporterT.hh
index 50ee3192..bb223e74 100644
--- a/src/OpenMesh/Core/IO/importer/ImporterT.hh
+++ b/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())