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/*
# This file is part of the Astrometry.net suite.
# Licensed under a 3-clause BSD style license - see LICENSE
*/
/*
Utilities for noise simulations.
*/
#ifndef NOISE_H
#define NOISE_H
/**
angleArcMin: radius in arcminutes.
*/
void sample_in_circle(const double* center, double angleArcMin,
double* point);
void sample_star_in_ring(double* center,
double minAngleArcMin,
double maxAngleArcMin,
double* point);
void sample_field_in_circle(const double* center, double radius,
double* point);
void add_star_noise(const double* real, double noisestddev, double* noisy);
void add_field_noise(const double* real, double noisestddev, double* noisy);
void compute_star_code(const double* xyz, int dimquads, double* code);
void compute_field_code(const double* pix, int dimquads,
double* code, double* scale);
#endif
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