height_from_lai.h

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#ifndef HEIGHT_FROM_LAI_H
#define HEIGHT_FROM_LAI_H
 
#include "../framework/module.h"
#include "../framework/state_map.h"
 
namespace standardBML
{
class height_from_lai : public direct_module
{
   public:
    height_from_lai(
        state_map const& input_quantities,
        state_map* output_quantities)
        : direct_module{},
 
          // Get pointers to input quantities
          heightf{get_input(input_quantities, "heightf")},
          lai{get_input(input_quantities, "lai")},
 
          // Get pointers to output quantities
          canopy_height_op{get_op(output_quantities, "canopy_height")}
    {
    }
    static string_vector get_inputs();
    static string_vector get_outputs();
    static std::string get_name() { return "height_from_lai"; }
 
   private:
    // References to input quantities
    double const& heightf;
    double const& lai;
 
    // Pointers to output quantities
    double* canopy_height_op;
 
    // Main operation
    void do_operation() const;
};
 
string_vector height_from_lai::get_inputs()
{
    return {
        "heightf",  // m^(-1)
        "lai"       // dimensionless
    };
}
 
string_vector height_from_lai::get_outputs()
{
    return {
        "canopy_height"  // m
    };
}
 
void height_from_lai::do_operation() const
{
    update(canopy_height_op, lai / heightf);  // m
}
 
}  // namespace standardBML
#endif