Organic Maps sources as of 02.04.2025 (fad26bbf22ac3da75e01e62aa01e5c8e11861005)

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poly_borders/borders_data.hpp

@@ -0,0 +1,71 @@
+#pragma once
+
+#include "poly_borders/help_structures.hpp"
+
+#include "base/control_flow.hpp"
+
+#include <map>
+#include <string>
+#include <vector>
+
+namespace poly_borders
+{
+/// \note All methods of this class are not thread-safe except |MarkPoint()| method.
+class BordersData
+{
+public:
+  inline static double const kEqualityEpsilon = 1e-20;
+  inline static std::string const kBorderExtension = ".poly";
+
+  void Init(std::string const & bordersDir);
+  /// \brief Runs |MarkPoint(borderId, pointId)| for each borderId and its pointId. Look to
+  /// |MarkPoint| for more details.
+  void MarkPoints();
+
+  void RemoveEmptySpaceBetweenBorders();
+
+  void DumpPolyFiles(std::string const & targetDir);
+  Polygon const & GetBordersPolygonByName(std::string const & name) const;
+  void PrintDiff();
+
+private:
+  struct Processor
+  {
+    explicit Processor(BordersData & data) : m_data(data) {}
+    void operator()(size_t borderId);
+
+    BordersData & m_data;
+  };
+
+  /// \brief Some polygons can have sequentially same points - duplicates. This method removes such
+  /// points and leaves only unique.
+  size_t RemoveDuplicatePoints();
+
+  /// \brief Finds point on other polygons equal to points passed as in the argument. If such point
+  /// is found, the method will create a link of the form "some border (with id = anotherBorderId)
+  /// has the same point (with id = anotherPointId)".
+  //  If point belongs to more than 2 polygons, the link will be created for an arbitrary pair.
+  void MarkPoint(size_t curBorderId, size_t curPointId);
+
+  /// \brief Checks whether we can replace points from segment: [curLeftPointId, curRightPointId]
+  /// of |curBorderId| to points from another border in order to get rid of empty space
+  /// between curBorder and anotherBorder.
+  base::ControlFlow TryToReplace(size_t curBorderId, size_t & curLeftPointId,
+                                 size_t curRightPointId);
+
+  bool HasLinkAt(size_t curBorderId, size_t pointId);
+
+  /// \brief Replace points using |Polygon::ReplaceData| that is filled by
+  /// |RemoveEmptySpaceBetweenBorders()|.
+  void DoReplace();
+
+  size_t m_removedPointsCount = 0;
+  size_t m_duplicatedPointsCount = 0;
+  std::map<size_t, double> m_additionalAreaMetersSqr;
+
+  std::map<std::string, size_t> m_polyFileNameToIndex;
+  std::map<size_t, std::string> m_indexToPolyFileName;
+  std::vector<Polygon> m_bordersPolygons;
+  std::vector<Polygon> m_prevCopy;
+};
+}  // namespace poly_borders