lsst::jointcal::Histo2d Class Reference

#include <Histo2d.h>

Public Member Functions
	Histo2d ()
	Histo2d (int nx, float minx, float maxx, int ny, float miny, float maxy)
	Histo2d (const Histo2d &other)
void	fill (float x, float y, float weight=1.)
double	maxBin (double &x, double &y) const
void	binWidth (double &Hdx, double &Hdy) const
double	binContent (double x, double y) const
void	zeroBin (double x, double y)
	~Histo2d ()

Detailed Description

Definition at line 31 of file Histo2d.h.

Constructor & Destructor Documentation

Histo2d() [1/3]

lsst::jointcal::Histo2d::Histo2d ( )

inline

Definition at line 33 of file Histo2d.h.

: data() {}

Histo2d() [2/3]

lsst::jointcal::Histo2d::Histo2d	(	int	nx,
		float	minx,
		float	maxx,
		int	ny,
		float	miny,
		float	maxy
	)

Definition at line 39 of file Histo2d.cc.

                                                                                     {
    nx = nnx;
    ny = nny;
    minx = mminx;
    miny = mminy;
    if (mmaxx != mminx)
        scalex = nx / (mmaxx - mminx);
    else {
        LOGL_WARN(_log, "Histo2d: minx = maxx requested");
        scalex = 1.0;
    }
    if (mmaxy != mminy)
        scaley = ny / (mmaxy - mminy);
    else {
        LOGL_WARN(_log, "Histo2d: maxy = miny requested");
        scaley = 1.0;
    }
    data.reset(new float[nx * ny]);
    memset(data.get(), 0, nx * ny * sizeof(float));
}

Histo2d() [3/3]

lsst::jointcal::Histo2d::Histo2d

(

const Histo2d &

other

)

Definition at line 60 of file Histo2d.cc.

                                     {
    memcpy(this, &other, sizeof(Histo2d));
    data.reset(new float[nx * ny]);
    memcpy((data).get(), other.data.get(), nx * ny * sizeof(float));
}

~Histo2d()

lsst::jointcal::Histo2d::~Histo2d ( )

inline

Definition at line 51 of file Histo2d.h.

{}

Member Function Documentation

binContent()

double lsst::jointcal::Histo2d::binContent	(	double	x,
		double	y
	)		const

Definition at line 101 of file Histo2d.cc.

                                                   {
    int ix, iy;
    if (indices(x, y, ix, iy)) return data[iy + ny * ix];
    LOGL_WARN(_log, "Histo2D::binContent outside limits requested");
    return -1e30;
}

binWidth()

void lsst::jointcal::Histo2d::binWidth ( double &  Hdx, double &  Hdy  ) const

inline

Definition at line 42 of file Histo2d.h.

                                                  {
        Hdx = 1. / scalex;
        Hdy = 1. / scaley;
    }

fill()

void lsst::jointcal::Histo2d::fill	(	float	x,
		float	y,
		float	weight = 1.
	)

Definition at line 73 of file Histo2d.cc.

                                                 {
    int ix, iy;
    if (indices(x, y, ix, iy)) data[iy + ny * ix] += weight;
}

maxBin()

double lsst::jointcal::Histo2d::maxBin	(	double &	x,
		double &	y
	)		const

Definition at line 78 of file Histo2d.cc.

                                                 {
    float *p, *pend;
    int imax = 0;
    float valmax = -1e30;

    for (p = data.get(), pend = p + nx * ny; pend - p; p++) {
        if (*p > valmax) {
            valmax = *p;
            imax = p - (data.get());
        }
    }
    int ix = imax / ny;
    int iy = imax - ix * ny;
    x = minx + ((float)ix + 0.5) / scalex;
    y = miny + ((float)iy + 0.5) / scaley;
    return valmax;
}

zeroBin()

void lsst::jointcal::Histo2d::zeroBin	(	double	x,
		double	y
	)

Definition at line 96 of file Histo2d.cc.

                                        {
    int ix, iy;
    if (indices(x, y, ix, iy)) data[iy + ny * ix] = 0;
}

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

• /j/snowflake/release/lsstsw/stack/Linux64/jointcal/16.0-28-gfc9ea6c+4/include/lsst/jointcal/Histo2d.h
• /j/snowflake/release/lsstsw/stack/Linux64/jointcal/16.0-28-gfc9ea6c+4/src/Histo2d.cc