LinearQuadtreeExpansion.h

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#pragma once
 
#include <ogdf/energybased/fast_multipole_embedder/FastUtils.h>
 
#include <cstdint>
 
namespace ogdf::fast_multipole_embedder {
class LinearQuadtree;
} // namespace ogdf::fast_multipole_embedder
 
namespace ogdf {
namespace fast_multipole_embedder {
 
class LinearQuadtreeExpansion {
public:
    LinearQuadtreeExpansion(uint32_t precision, const LinearQuadtree& tree);
 
    ~LinearQuadtreeExpansion(void);
 
    void P2M(uint32_t point, uint32_t receiver);
 
    void M2M(uint32_t source, uint32_t receiver);
 
    void M2L(uint32_t source, uint32_t receiver);
 
    void L2L(uint32_t source, uint32_t receiver);
 
    void L2P(uint32_t source, uint32_t point, float& fx, float& fy);
 
    uint32_t sizeInBytes() const { return m_numExp * m_numCoeff * (uint32_t)sizeof(double) * 4; }
 
    inline double* multiExp() const { return m_multiExp; }
 
    inline double* localExp() const { return m_localExp; }
 
    inline uint32_t numCoeff() const { return m_numCoeff; }
 
    const LinearQuadtree& tree() { return m_tree; }
 
private:
    void allocate();
 
    void deallocate();
 
    const LinearQuadtree& m_tree;
 
public:
    double* m_multiExp;
 
    double* m_localExp;
 
public:
    uint32_t m_numExp;
 
    uint32_t m_numCoeff;
 
    BinCoeff<double> binCoef;
};
 
}
}