BlockDragPartial.hpp

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#pragma once
 
#include "AstGlobal.h"
#include "AstCore/BlockDrag.hpp"
#include "AstMath/Matrix.hpp"
 
AST_NAMESPACE_BEGIN
 
class AST_CORE_API BlockDragPartial : public BlockDrag
{
public:
    BlockDragPartial();
 
    BlockDragPartial(const BlockDragPartial&) = delete;
    BlockDragPartial& operator=(const BlockDragPartial&) = delete;
 
    BlockDragPartial(Atmosphere* atmosphere, double dragCoefficient, double dragArea, Frame* propagationFrame);
 
    errc_t run(const SimTime& simTime) override;
 
    void setUseDragSensitivity(bool v) { useDragSensitivity_ = v; }
private:
    void init();
 
    Matrix3d computeDensityGradientContribution(const Vector3d& relVelocity, double relSpeed, double k,
        const TimePoint& tp, const Vector3d& posInAtmosFrame, double density, const Matrix3d& rotToAtmos);
 
    Matrix6d* aMatrixPtr_{&aMatrixBuffer_};   
    Matrix6d  aMatrixBuffer_{};               
 
    bool      useDragSensitivity_{false};                             
    Vector3d* accSensitivityToDrag_{&accSensitivityToDragBuffer_};   
    Vector3d  accSensitivityToDragBuffer_{};                          
};
 
AST_NAMESPACE_END