merge fold into main

include/ufo/fold.hpp

@@ -0,0 +1,33 @@
+# pragma once
+# include <ufo/solver.hpp>
+
+namespace ufo
+{
+  class FoldSolver : public Solver
+  {
+    public:
+      struct InputType
+      {
+        Eigen::Matrix3d PrimativeCell;
+        Eigen::Vector<unsigned, 3> SuperCellMultiplier;
+        std::optional<Eigen::Matrix<double, 3, 3>> SuperCellDeformation;
+        std::vector<Eigen::Vector3d> Qpoints;
+        std::string OutputFilename;
+
+        InputType(std::string config_file);
+      };
+      struct OutputType
+      {
+        std::vector<Eigen::Vector3d> QPoints;
+        void write(std::string filename) const;
+      };
+    protected:
+      InputType Input_;
+      std::optional<OutputType> Output_;
+    public:
+      FoldSolver(std::string config_file);
+      FoldSolver& operator()() override;
+      static Eigen::Vector3d fold(Eigen::Vector3d qpoint, Eigen::Vector<unsigned, 3> super_cell_multiplier,
+        std::optional<Eigen::Matrix<double, 3, 3>> super_cell_deformation);
+  };
+}