netgen/libsrc/meshing/debugging.hpp

#include "meshing.hpp"

// #define NETGEN_DEBUGGING_GUI

#ifdef NETGEN_DEBUGGING_GUI
#include "json.hpp"
using json = nlohmann::json;
#endif  // NETGEN_DEBUGGING_GUI

namespace netgen {
unique_ptr<Mesh> GetOpenElements(const Mesh& m, int dom = 0);

unique_ptr<Mesh> FilterMesh(
    const Mesh& m, FlatArray<PointIndex> points,
    FlatArray<SurfaceElementIndex> sels = Array<SurfaceElementIndex>{},
    FlatArray<ElementIndex> els = Array<ElementIndex>{});

#ifdef NETGEN_DEBUGGING_GUI
class DebuggingGUI {
 public:
  DebuggingGUI();
  ~DebuggingGUI();

  void Start();
  void Stop();

  void DrawMesh(const Mesh& m);
  void DrawPoints(FlatArray<Point<3>> position, string name = "points",
                  string color = "black");
  void DrawLines(FlatArray<Point<3>> position, string name = "lines",
                 string color = "black");
  void DrawTrigs(FlatArray<Point<3>> position, string name = "trigs",
                 string color = "black");

  void DrawObject(FlatArray<Point<3>> position, string type, string name,
                  string color);
  void ResetObjects() { data["objects"] = json::array_t(); }

 private:
  thread gui_thread;
  void *app, *loop, *token;
  std::set<void*> websockets;
  json data;
  shared_ptr<Mesh> mesh;

  void Send(const json& data) { Send(data.dump()); }
  void Send(const string& message);
};

extern DebuggingGUI debug_gui;
#endif  // NETGEN_DEBUGGING_GUI

}  // namespace netgen