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