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sdrangel/sdrbase/util/fits.h
Jon Beniston cddc8c9b83 Star Tracker updates.
Plot Sun and Moon on sky temperature chart.
Plot markers on Galactic line-of-sight chart.
Create animations from Galactic line-of-sight chart.
Allow weather at antenna location to be downloaded from openweathermap.org
Allow target to be entered as Galactic longitude / latitude.
Add azimuth and elevation offsets to support scans around targets.
Add S7, S8 and S9 targets.
Refactor some code from GUI to main plugin, so computed values can be used in other plugins.
2021-10-12 11:07:56 +01:00

67 lines
2.7 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2021 Jon Beniston, M7RCE //
// //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation as version 3 of the License, or //
// (at your option) any later version. //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#ifndef INCLUDE_UTIL_FITS_H
#define INCLUDE_UTIL_FITS_H
#include <QString>
#include <QByteArray>
#include "export.h"
// Flexible Image Transport System
// Specification: https://fits.gsfc.nasa.gov/standard40/fits_standard40aa-le.pdf
// This just implements the minimum functionality used by the files
// used by the StarTracker plugin
class SDRBASE_API FITS {
bool m_valid;
int m_width; // In pixels
int m_height; // In pixels
int m_bitsPerPixel; // BITPIX=-32 means single precision floating point
int m_bytesPerPixel;
int m_bzero;
double m_bscale;
QString m_buint; // "K TB" "MILLIK TB" "K"
float m_uintScale;
double m_cdelta1; // How many degrees RA per horizontal pixel
double m_cdelta2; // How many degrees Declination per vertical pixel
int m_dataStart;
QByteArray m_data;
public:
FITS(QString resourceName);
float value(int x, int y) const;
float scaledValue(int x, int y) const;
float scaledWrappedValue(int x, int y) const;
double degreesPerPixelH() const { return m_cdelta1; }
double degreesPerPixelV() const { return m_cdelta2; }
int width() const { return m_width; }
int height() const { return m_height; }
bool valid() const { return m_valid; }
protected:
int mod(int a, int b) const;
};
#endif // INCLUDE_UTIL_FITS_H