GooseActiveForageLocation Class Reference

A class to hold an active goose foraging location and the number of birds of different types there. More...

#include <Goose_Population_Manager.h>

Public Member Functions
	GooseActiveForageLocation (GooseSpeciesType a_type, int a_number, int a_polyref, int a_area, double a_graindensity, double a_maizedensity, double *a_grazing, Goose_Population_Manager *p_NPM)
	Constructor for GooseActiveForageLocation. More...
void	SetArea (int a_area)
	Set the area in m. More...
double	GetArea ()
	Get the area in m. More...
int	GetPolygonref ()
	Get the landscape element ( LE ) reference number used by the Landscape class to identify this location. More...
int	GetMaxBirdsPresent ()
	Sum of the maximum of all geese present (this may not be the same as the real maximum) More...
int	GetMaxSpBirdsPresent (GooseSpecies a_goose)
	Sum of the maximum of each goose species present (this may not be the same as the real maximum) More...
void	SetPolygonref (int a_polyref)
	Set the landscape element ( LE ) reference number used by the Landscape class to identify this location. More...
int	GetHuntables (void)
	Returns the number of huntable birds at the location. More...
int	GetGooseNumbers (void)
	Returns the total number of geese at the location. More...
double	GetGooseDensity (void)
	Returns the density of geese at the location. More...
int	GetBirds (GooseSpeciesType a_type)
	Get how many birds of a type. More...
int	GetBirds (GooseSpecies a_goose)
	Get how many birds of a species. More...
void	AddGeese (GooseSpeciesType a_type, int a_number)
	Adds geese to the location. More...
void	RemoveGeese (GooseSpeciesType a_type, int a_number)
	Removes geese to the location. More...
double	GetGrainDensity (void)
	Returns the current forage density (grain/m2) More...
void	SetGrainDensity (double a_density)
	Sets forage density (grain/m2) More...
double	GetMaizeDensity (void)
	Returns the current maize forage density (kJ/m2) More...
bool	GetHabitatType (void)
	Returns whether the current crop is a cereal. More...
void	SetMaizeDensity (double a_density)
	Sets maize forage density (kJ/m2) More...
double	GetGrazing (int gs)
	Returns the current forage rate kJ/min assuming no other geese affect this. More...
double	GetRoostDist (int gs)
	Returns the distance to the closest roost for gs. More...
double	GetGrazedBiomass (void)
	Returns the current grazing forage eaten in g. More...
void	SetGrazing (int gs, double a_density)
	Sets forage density (kJ/m2) More...
void	SetDistToClosestRoost (int gs, double a_dist)
	Sets the distance to the closest roost in meters. More...
void	ResetGrazing ()
	Sets grazed biomass to zero. More...
void	RemoveGrainKJ (double a_kJ)
	Removes grain from the field as kJ. More...
void	RemoveMaizeKJ (double a_kJ)
	Removes maize from the field as kJ. More...
void	Graze (double a_kJ)
	Records forage removed as kJ from the field as grams. More...
void	ClearBirds ()
	Empties the bird recording arrays. More...
void	UpdateKJ ()
	Updates the grain or maize density based on the current total grain or maize amount. More...

Protected Attributes
int	m_polygonref
	A landscape element ( LE ) reference number used by the Landscape class to identify this location. More...
double	m_area
	The area of feeding location. More...
double	m_graindensity
	The grain density in kJ/m2. More...
double	m_maizedensity
	The maize density in kJ/m2. More...
double	m_grazingrate [gs_foobar]
	The grazing intake rate in kJ/min. More...
double	m_grazedbiomass
	Contains the total amount of grazing eaten today. More...
double	m_grainKJ_total
	The total grain kJ. More...
double	m_maizeKJ_total
	The total maize kJ. More...
TTypeOfMaxIntakeSource	m_HabitatType
	Whether it is a cereal crop, grass etc. More...
int	m_BirdsPresent [gst_foobar]
	An array holding the number of geese of different type i.e. Pinkfoot families, juvs, Barnacle families, juvs, Greylag familes, juvs. More...
int	m_MaxBirdsPresent [gst_foobar]
	An array holding the maximum number of geese of different types and total i.e. Pinkfoot families, juvs, Barnacle families, juvs, Greylag familes, juvs present on the field at one time for each day. More...
double	m_dist_to_closest_roost [gs_foobar]
	An array holding the distance to the closest roost. More...
Goose_Population_Manager *	m_OurPopulationManager
	This is a time saving pointer to the correct population manager object. More...

Detailed Description

A class to hold an active goose foraging location and the number of birds of different types there.

Constructor & Destructor Documentation

GooseActiveForageLocation()

GooseActiveForageLocation::GooseActiveForageLocation	(	GooseSpeciesType	a_type,
		int	a_number,
		int	a_polyref,
		int	a_area,
		double	a_graindensity,
		double	a_maizedensity,
		double *	a_grazing,
		Goose_Population_Manager *	p_NPM
	)

Constructor for GooseActiveForageLocation.

The grain density is measured in number of grains. To go from grains to grams we use the weight of a grain being 0.04

17.67 kJ/g dw grain & 0.04 grain/g

 {
     m_HabitatType = tomis_foobar;
     SetPolygonref(a_polyref);
     SetArea(a_area);
     SetGrainDensity(a_graindensity); // grain/m2
     SetMaizeDensity(a_maizedensity); // kJ/m2
     m_grainKJ_total = a_area * a_graindensity * 17.67 * 0.04; 
     m_maizeKJ_total = a_area * a_maizedensity;                // Already in kJ/m2
     for (int i = 0; i < gs_foobar; i++)
     {
         SetGrazing(i, a_grazing[i]);
     }
     for (int i = 0; i < gst_foobar; i++)
     {
         m_BirdsPresent[i] = 0;
         m_MaxBirdsPresent[i] = 0;
     }
     UpdateKJ(); // Scales m_xxxxKJ_total to area. Used also when recalculating after consumption by geese.
     AddGeese(a_type, a_number);
     m_OurPopulationManager = p_NPM;
}

References AddGeese(), gst_foobar, m_BirdsPresent, m_grainKJ_total, m_HabitatType, m_maizeKJ_total, m_MaxBirdsPresent, m_OurPopulationManager, SetArea(), SetGrainDensity(), SetGrazing(), SetMaizeDensity(), SetPolygonref(), tomis_foobar, and UpdateKJ().

Member Function Documentation

AddGeese()

void GooseActiveForageLocation::AddGeese ( GooseSpeciesType  a_type, int  a_number  )

inline

Adds geese to the location.

    {
        m_BirdsPresent[(int)a_type] += a_number; 
        if (m_BirdsPresent[(int)a_type] > m_MaxBirdsPresent[(int)a_type])
        {
            m_MaxBirdsPresent[(int)a_type] = m_BirdsPresent[(int)a_type];
        }
    }

References m_BirdsPresent, and m_MaxBirdsPresent.

Referenced by GooseActiveForageLocation().

ClearBirds()

void GooseActiveForageLocation::ClearBirds

(

)

Empties the bird recording arrays.

{
    for (int i = 0; i < gst_foobar; i++)
    {
        if (m_BirdsPresent[i] != 0)
        {
            g_land->Warn("GooseActiveForageLocation::ClearBirds() - still birds on field", "");
            std::exit(1);
            break;
        }
        m_MaxBirdsPresent[i] = 0;
    }
}

References g_land, gst_foobar, m_BirdsPresent, m_MaxBirdsPresent, and Landscape::Warn().

GetArea()

double GooseActiveForageLocation::GetArea ( void  )

inline

Get the area in m.

{ return m_area; }

References m_area.

GetBirds() [1/2]

int GooseActiveForageLocation::GetBirds ( GooseSpecies  a_goose )

inline

Get how many birds of a species.

                                         {
                int sum = 0;
        switch (a_goose) {
            case gs_Pinkfoot:
                sum += (GetBirds(gst_PinkfootFamilyGroup) + GetBirds(gst_PinkfootNonBreeder));
                break;
            case gs_Barnacle:
                sum += (GetBirds(gst_BarnacleFamilyGroup) + GetBirds(gst_BarnacleNonBreeder));
                break;
            case gs_Greylag:
                sum += (GetBirds(gst_GreylagFamilyGroup) + GetBirds(gst_GreylagNonBreeder));
                break;
            default:
                return -1;
        }
        return sum;
    }

References GetBirds(), gst_BarnacleFamilyGroup, gst_BarnacleNonBreeder, gst_GreylagFamilyGroup, gst_GreylagNonBreeder, gst_PinkfootFamilyGroup, and gst_PinkfootNonBreeder.

GetBirds() [2/2]

int GooseActiveForageLocation::GetBirds ( GooseSpeciesType  a_type )

inline

Get how many birds of a type.

{ return m_BirdsPresent[(int)a_type]; }

References m_BirdsPresent.

Referenced by GetBirds().

GetGooseDensity()

double GooseActiveForageLocation::GetGooseDensity ( void  )

inline

Returns the density of geese at the location.

Todo:

Testing a new implementation which uses flock size and not density.

                                   {
        //return GetGooseNumbers() / m_area;
        return GetGooseNumbers();  
    }

References GetGooseNumbers().

GetGooseNumbers()

int GooseActiveForageLocation::GetGooseNumbers ( void  )

inline

Returns the total number of geese at the location.

                                {
        int sum = 0;
        for (int i = 0; i < gst_foobar; i++) {
            sum += m_BirdsPresent[ i ];
        }
        return sum;
    }

References gst_foobar, and m_BirdsPresent.

Referenced by GetGooseDensity().

GetGrainDensity()

double GooseActiveForageLocation::GetGrainDensity ( void  )

inline

Returns the current forage density (grain/m2)

{ return m_graindensity; }

References m_graindensity.

Referenced by Goose_Base::st_ChooseForageLocation().

GetGrazedBiomass()

double GooseActiveForageLocation::GetGrazedBiomass ( void  )

inline

Returns the current grazing forage eaten in g.

{ return m_grazedbiomass; }

References m_grazedbiomass.

GetGrazing()

double GooseActiveForageLocation::GetGrazing ( int  gs )

inline

Returns the current forage rate kJ/min assuming no other geese affect this.

{ return m_grazingrate[gs]; }

References m_grazingrate.

Referenced by Goose_Base::st_ChooseForageLocation().

GetHabitatType()

bool GooseActiveForageLocation::GetHabitatType ( void  )

inline

Returns whether the current crop is a cereal.

                              {
        return m_HabitatType;
    }

References m_HabitatType.

GetHuntables()

int GooseActiveForageLocation::GetHuntables

(

void

)

Returns the number of huntable birds at the location.

{
    int huntables = 0;
    if (m_OurPopulationManager->InPinkfootSeason()) {
        huntables += m_BirdsPresent[gst_PinkfootFamilyGroup] + m_BirdsPresent[gst_PinkfootNonBreeder];
    }
    if (m_OurPopulationManager->InGreylagSeason()) {
        huntables += m_BirdsPresent[gst_GreylagFamilyGroup] + m_BirdsPresent[gst_GreylagNonBreeder];
    }
    return huntables;
}

References gst_GreylagFamilyGroup, gst_GreylagNonBreeder, gst_PinkfootFamilyGroup, gst_PinkfootNonBreeder, Goose_Population_Manager::InGreylagSeason(), Goose_Population_Manager::InPinkfootSeason(), m_BirdsPresent, and m_OurPopulationManager.

GetMaizeDensity()

double GooseActiveForageLocation::GetMaizeDensity ( void  )

inline

Returns the current maize forage density (kJ/m2)

                                 {
        return m_maizedensity;
    }

References m_maizedensity.

Referenced by Goose_Base::st_ChooseForageLocation().

GetMaxBirdsPresent()

int GooseActiveForageLocation::GetMaxBirdsPresent ( )

inline

Sum of the maximum of all geese present (this may not be the same as the real maximum)

    {       
        int sum=0; 
        for (int i = (int) 0; i<gst_foobar;i++) 
            sum+=m_MaxBirdsPresent[i]; 
        return sum; 
    }

References gst_foobar, and m_MaxBirdsPresent.

GetMaxSpBirdsPresent()

int GooseActiveForageLocation::GetMaxSpBirdsPresent ( GooseSpecies  a_goose )

inline

Sum of the maximum of each goose species present (this may not be the same as the real maximum)

                                                   {
        int sum = 0;
            switch (a_goose) {
                case gs_Pinkfoot:
                    sum += (m_MaxBirdsPresent[ gst_PinkfootFamilyGroup ] + m_MaxBirdsPresent[ gst_PinkfootNonBreeder ]);
                    break;
                case gs_Barnacle:
                    sum += (m_MaxBirdsPresent[ gst_BarnacleFamilyGroup ] + m_MaxBirdsPresent[ gst_BarnacleNonBreeder ]);
                    break;
                case gs_Greylag:
                    sum += (m_MaxBirdsPresent[ gst_GreylagFamilyGroup ] + m_MaxBirdsPresent[ gst_GreylagNonBreeder ]);
                    break;
                default:
                    return -1;
            }
            return sum;
        }

References gst_BarnacleFamilyGroup, gst_BarnacleNonBreeder, gst_GreylagFamilyGroup, gst_GreylagNonBreeder, gst_PinkfootFamilyGroup, gst_PinkfootNonBreeder, and m_MaxBirdsPresent.

GetPolygonref()

int GooseActiveForageLocation::GetPolygonref ( )

inline

Get the landscape element ( LE ) reference number used by the Landscape class to identify this location.

{ return m_polygonref; }

References m_polygonref.

Referenced by Goose_Base::st_ChooseForageLocation(), and Goose_Population_Manager::XYDump().

GetRoostDist()

double GooseActiveForageLocation::GetRoostDist ( int  gs )

inline

Returns the distance to the closest roost for gs.

{ return m_dist_to_closest_roost[gs]; }

References m_dist_to_closest_roost.

Graze()

void GooseActiveForageLocation::Graze ( double  a_kJ )

inline

Records forage removed as kJ from the field as grams.

3.5 kJ/gram ww; Robbins 1993

                            {
        m_grazedbiomass += a_kJ * 0.2857;  
    }

References m_grazedbiomass.

RemoveGeese()

void GooseActiveForageLocation::RemoveGeese ( GooseSpeciesType  a_type, int  a_number  )

inline

Removes geese to the location.

                                                            { 
        m_BirdsPresent[a_type] -= a_number; 
#ifdef __DEBUG_GOOSE
        if (m_BirdsPresent[a_type]<0) 
        {
            g_msg->Warn("GooseActiveForageLocation::RemoveGeese - Negative birds at forage location", (double)m_BirdsPresent[a_type]);
            exit(0);
        }
#endif
    }

References g_msg, m_BirdsPresent, and MapErrorMsg::Warn().

RemoveGrainKJ()

void GooseActiveForageLocation::RemoveGrainKJ ( double  a_kJ )

inline

Removes grain from the field as kJ.

{ m_grainKJ_total -= a_kJ; }

References m_grainKJ_total.

RemoveMaizeKJ()

void GooseActiveForageLocation::RemoveMaizeKJ ( double  a_kJ )

inline

Removes maize from the field as kJ.

                                      {
        m_maizeKJ_total -= a_kJ;
    }

References m_maizeKJ_total.

ResetGrazing()

void GooseActiveForageLocation::ResetGrazing ( )

inline

Sets grazed biomass to zero.

{ m_grazedbiomass = 0.0; }

References m_grazedbiomass.

Referenced by Goose_Population_Manager::NewForageLocation().

SetArea()

void GooseActiveForageLocation::SetArea ( int  a_area )

inline

Set the area in m.

{ m_area = a_area; }

References m_area.

Referenced by GooseActiveForageLocation().

SetDistToClosestRoost()

void GooseActiveForageLocation::SetDistToClosestRoost ( int  gs, double  a_dist  )

inline

Sets the distance to the closest roost in meters.

{ m_dist_to_closest_roost[gs] = a_dist; }

References m_dist_to_closest_roost.

Referenced by Goose_Population_Manager::NewForageLocation().

SetGrainDensity()

void GooseActiveForageLocation::SetGrainDensity ( double  a_density )

inline

Sets forage density (grain/m2)

{ m_graindensity = a_density; }

References m_graindensity.

Referenced by GooseActiveForageLocation().

SetGrazing()

void GooseActiveForageLocation::SetGrazing ( int  gs, double  a_density  )

inline

Sets forage density (kJ/m2)

{ m_grazingrate[gs] = a_density; }

References m_grazingrate.

Referenced by GooseActiveForageLocation().

SetMaizeDensity()

void GooseActiveForageLocation::SetMaizeDensity ( double  a_density )

inline

Sets maize forage density (kJ/m2)

                                             {
        m_maizedensity = a_density;
    }

References m_maizedensity.

Referenced by GooseActiveForageLocation().

SetPolygonref()

void GooseActiveForageLocation::SetPolygonref ( int  a_polyref )

inline

Set the landscape element ( LE ) reference number used by the Landscape class to identify this location.

{ m_polygonref = a_polyref; }

References m_polygonref.

Referenced by GooseActiveForageLocation().

UpdateKJ()

void GooseActiveForageLocation::UpdateKJ ( )

inline

Updates the grain or maize density based on the current total grain or maize amount.

17.67 kJ/g dw grain & 0.04 g/grain

                    {
        m_graindensity = (m_grainKJ_total / m_area) / 17.67 / 0.04;  
        m_maizedensity = m_maizeKJ_total / m_area;
    }

References m_area, m_graindensity, m_grainKJ_total, m_maizedensity, and m_maizeKJ_total.

Referenced by GooseActiveForageLocation().

Member Data Documentation

m_area

double GooseActiveForageLocation::m_area

protected

The area of feeding location.

Referenced by GetArea(), SetArea(), and UpdateKJ().

m_BirdsPresent

int GooseActiveForageLocation::m_BirdsPresent[gst_foobar]

protected

An array holding the number of geese of different type i.e. Pinkfoot families, juvs, Barnacle families, juvs, Greylag familes, juvs.

Referenced by AddGeese(), ClearBirds(), GetBirds(), GetGooseNumbers(), GetHuntables(), GooseActiveForageLocation(), and RemoveGeese().

m_dist_to_closest_roost

double GooseActiveForageLocation::m_dist_to_closest_roost[gs_foobar]

protected

An array holding the distance to the closest roost.

Referenced by GetRoostDist(), and SetDistToClosestRoost().

m_graindensity

double GooseActiveForageLocation::m_graindensity

protected

The grain density in kJ/m2.

Referenced by GetGrainDensity(), SetGrainDensity(), and UpdateKJ().

m_grainKJ_total

double GooseActiveForageLocation::m_grainKJ_total

protected

The total grain kJ.

Referenced by GooseActiveForageLocation(), RemoveGrainKJ(), and UpdateKJ().

m_grazedbiomass

double GooseActiveForageLocation::m_grazedbiomass

protected

Contains the total amount of grazing eaten today.

Referenced by GetGrazedBiomass(), Graze(), and ResetGrazing().

m_grazingrate

double GooseActiveForageLocation::m_grazingrate[gs_foobar]

protected

The grazing intake rate in kJ/min.

Referenced by GetGrazing(), and SetGrazing().

m_HabitatType

TTypeOfMaxIntakeSource GooseActiveForageLocation::m_HabitatType

protected

Whether it is a cereal crop, grass etc.

Referenced by GetHabitatType(), and GooseActiveForageLocation().

m_maizedensity

double GooseActiveForageLocation::m_maizedensity

protected

The maize density in kJ/m2.

Referenced by GetMaizeDensity(), SetMaizeDensity(), and UpdateKJ().

m_maizeKJ_total

double GooseActiveForageLocation::m_maizeKJ_total

protected

The total maize kJ.

Referenced by GooseActiveForageLocation(), RemoveMaizeKJ(), and UpdateKJ().

m_MaxBirdsPresent

int GooseActiveForageLocation::m_MaxBirdsPresent[gst_foobar]

protected

An array holding the maximum number of geese of different types and total i.e. Pinkfoot families, juvs, Barnacle families, juvs, Greylag familes, juvs present on the field at one time for each day.

Referenced by AddGeese(), ClearBirds(), GetMaxBirdsPresent(), GetMaxSpBirdsPresent(), and GooseActiveForageLocation().

m_OurPopulationManager

Goose_Population_Manager* GooseActiveForageLocation::m_OurPopulationManager

protected

This is a time saving pointer to the correct population manager object.

Referenced by GetHuntables(), and GooseActiveForageLocation().

m_polygonref

int GooseActiveForageLocation::m_polygonref

protected

A landscape element ( LE ) reference number used by the Landscape class to identify this location.

Referenced by GetPolygonref(), and SetPolygonref().

---

The documentation for this class was generated from the following files:

• /builds/a1mass/almass_stable_oddox/GooseManagement/Goose_Population_Manager.h
• /builds/a1mass/almass_stable_oddox/GooseManagement/Goose_Population_Manager.cpp