add new compile target for viewer

code/include/example_include.hpp

@@ -1,7 +0,0 @@
-//exmaple include hedder 
-#ifndef EXAMPLE_INCLUDE_HPP
-#define EXAMPLE_INCLUDE_HPP
-
-
-
-#endif // EXAMPLE_INCLUDE_HPP

code/include/mesh_utils.hpp

@@ -1,15 +1,16 @@
 #pragma once
 #include <CGAL/Surface_mesh.h>
 #include <Eigen/Dense>
-#include <igl/opengl/glfw/Viewer.h>
 #include <CGAL/Polygon_mesh_processing/triangulate_faces.h>
 
 
 namespace mesh_utils {
-
 template <typename Kernel>
 void cgal_to_eigen(CGAL::Surface_mesh<typename Kernel::Point_3>& mesh,
                    Eigen::MatrixXd& V, Eigen::MatrixXi& F) {
+  
+ CGAL::Polygon_mesh_processing::triangulate_faces(mesh);
+
   V.resize(mesh.num_vertices(), 3);
   F.resize(mesh.num_faces(), 3);
 
@@ -17,7 +18,7 @@ void cgal_to_eigen(CGAL::Surface_mesh<typename Kernel::Point_3>& mesh,
     auto p = mesh.point(v);
     V.row(v.idx()) << p.x(), p.y(), p.z();
   }
-  
+
   Eigen::Index face_idx = 0;
   for (auto f : mesh.faces()) {
     int vertex_count = 0;
@@ -29,29 +30,12 @@ void cgal_to_eigen(CGAL::Surface_mesh<typename Kernel::Point_3>& mesh,
     face_idx++;
   }
 }
-
 template <typename Kernel>
-void simple_visualize_mesh( CGAL::Surface_mesh<typename Kernel::Point_3>& mesh, bool triangulate = true) {
-  if(!CGAL::is_triangle_mesh(mesh)) {
-    std::cerr << "Warning: Mesh is not triangulated. Visualizer expects triangles.\n";
-    
-
-    if(triangulate){
-      std::cout << "Triangulating mesh for visualization...\n";
-      CGAL::Polygon_mesh_processing::triangulate_faces(mesh);
-    }
-    else{
-      std::cout << " exit without visualizetion.\n";
-      return;
-    }
-  }
-  Eigen::MatrixXd V; Eigen::MatrixXi F;
-  cgal_to_eigen<Kernel>(mesh, V, F);
+void simple_visualize_mesh(Eigen::MatrixXd& V, Eigen::MatrixXi& F) {
   igl::opengl::glfw::Viewer viewer;
   viewer.data().set_mesh(V, F);
   viewer.launch();
 }
-
 // Zero-Copy Map für V (optional)
 template <typename Kernel>
 Eigen::Map<Eigen::Matrix<double, Eigen::Dynamic, 3, Eigen::RowMajor>>
@@ -60,5 +44,4 @@ get_vertex_map(CGAL::Surface_mesh<typename Kernel::Point_3>& mesh) {
   double* data = reinterpret_cast<double*>(&points[0][0]);
   return {data, static_cast<Eigen::Index>(points.size()), 3};
 }
-
 }  // namespace

code/include/viewer_utils.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include <Eigen/Dense>
+#include <igl/opengl/glfw/Viewer.h>
+
+namespace viewer_utils {
+
+// Deklaration (Implementation in viewer.cpp)
+void simple_visualize(Eigen::MatrixXd& V, Eigen::MatrixXi& F);
+
+}