JacobiSet.h

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#pragma once
 
// base code includes
#include <Debug.h>
#include <ScalarFieldCriticalPoints.h>
#include <Triangulation.h>
#include <UnionFind.h>
#include <vector>
 
namespace ttk {
 
  class JacobiSet : virtual public Debug {
  public:
    JacobiSet();
 
    template <class dataTypeU, class dataTypeV, typename triangulationType>
    int execute(std::vector<std::pair<SimplexId, char>> &jacobiSet,
                const dataTypeU *const uField,
                const dataTypeV *const vField,
                const triangulationType &triangulation,
                std::vector<char> *isPareto = nullptr);
 
    template <class dataTypeU, class dataTypeV, typename triangulationType>
    char getCriticalType(const SimplexId &edgeId,
                         const dataTypeU *const uField,
                         const dataTypeV *const vField,
                         const triangulationType &triangulation);
 
    template <class dataTypeU, class dataTypeV>
    int perturb(const dataTypeU *const uField,
                const dataTypeV *const vField,
                const dataTypeU uEpsilon = Geometry::powIntTen(-DBL_DIG),
                const dataTypeV vEpsilon = Geometry::powIntTen(-DBL_DIG)) const;
 
    inline void
      setEdgeFans(const std::vector<std::vector<SimplexId>> *edgeFans) {
      edgeFans_ = edgeFans;
    }
 
    inline void setEdgeFanLinkEdgeList(
      const std::vector<std::vector<std::pair<SimplexId, SimplexId>>>
        *edgeFanLinkEdgeLists) {
      edgeFanLinkEdgeLists_ = edgeFanLinkEdgeLists;
    }
 
    inline void setEdgeList(
      const std::vector<std::pair<SimplexId, SimplexId>> *edgeList) {
      edgeList_ = edgeList;
    }
 
    inline void setSosOffsets(std::vector<SimplexId> *sosOffsets) {
      // legacy API
      setSosOffsetsU(sosOffsets->data());
    }

    inline void setSosOffsetsU(const SimplexId *const sosOffsets) {
      sosOffsetsU_ = sosOffsets;
    }

    inline void setSosOffsetsV(const SimplexId *const sosOffsets) {
      sosOffsetsV_ = sosOffsets;
    }
 
    // NOTE: here it's not clear how vtk builds vtkIdType
    // to check on bigger data-sets
    inline void setTetList(const SimplexId *tetList) {
      tetList_ = tetList;
    }
 
    inline void setVertexNumber(const SimplexId &vertexNumber) {
      vertexNumber_ = vertexNumber;
    }
 
    inline void
      preconditionTriangulation(AbstractTriangulation *const triangulation) {
      if(triangulation) {
        triangulation->preconditionEdges();
        triangulation->preconditionEdgeStars();
      }
    }
 
  protected:
    template <class dataTypeU, class dataTypeV>
    int executeLegacy(std::vector<std::pair<SimplexId, char>> &jacobiSet,
                      const dataTypeU *const uField,
                      const dataTypeV *const vField);
 
    SimplexId vertexNumber_{};
    const SimplexId *tetList_{};
    const std::vector<std::pair<SimplexId, SimplexId>> *edgeList_{};
    // for each edge, one skeleton of its triangle fan
    const std::vector<std::vector<std::pair<SimplexId, SimplexId>>>
      *edgeFanLinkEdgeLists_{};
    // for each edge, the one skeleton of its triangle fan
    const std::vector<std::vector<SimplexId>> *edgeFans_{};
    const SimplexId *sosOffsetsU_{}, *sosOffsetsV_{};
  };
} // namespace ttk
 
// if the package is not a template, comment the following line
#include "JacobiSet_Template.h"