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https://github.com/f4exb/sdrangel.git
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1a9b6d1763
Add GS232 Rotator Controller feature plugin. Add altitude and station name to My Positon. Use QtDeploy to ensure all required Qt libraries are included (Should fix OpenGL issues)
134 lines
4.1 KiB
C++
134 lines
4.1 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2020 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_AZ_EL_H
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#define INCLUDE_AZ_EL_H
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#include "export.h"
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// Spherical coordinate
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struct SDRBASE_API AzElSpherical
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{
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double m_latitude; // Degrees
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double m_longitude; // Degrees
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double m_altitude; // Metres
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};
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// Cartesian coordinate
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struct SDRBASE_API AzElCartesian
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{
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double m_x; // Metres
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double m_y; // Metres
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double m_z; // Metres
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};
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struct SDRBASE_API AzElPoint
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{
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AzElSpherical m_spherical; // Spherical coordinates
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AzElCartesian m_cart; // Cartesian coordinates
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AzElCartesian m_norm; // Normal vector on surface of sphere
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double m_radius; // Radius from centre of sphere to the point
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};
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// Class to calculate azimuth, elevation and distance between two points specified
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// by latitude, longitude and altitude
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// See: https://doncross.net/geocalc
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class SDRBASE_API AzEl
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{
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public:
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// Location is the point we are looking from
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void setLocation(double latitude, double longitude, double altitude)
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{
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m_location.m_spherical.m_latitude = latitude;
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m_location.m_spherical.m_longitude = longitude;
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m_location.m_spherical.m_altitude = altitude;
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sphericalToCartesian(m_location);
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}
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// Target is the point we are looking at
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void setTarget(double latiude, double longitude, double altitude)
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{
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m_target.m_spherical.m_latitude = latiude;
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m_target.m_spherical.m_longitude = longitude;
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m_target.m_spherical.m_altitude = altitude;
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sphericalToCartesian(m_target);
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}
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AzElSpherical getLocationSpherical()
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{
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return m_location.m_spherical;
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}
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AzElCartesian getLocationCartesian()
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{
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return m_location.m_cart;
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}
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AzElSpherical getTargetSpherical()
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{
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return m_target.m_spherical;
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}
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AzElCartesian getTargetCartesian()
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{
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return m_target.m_cart;
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}
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void calculate()
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{
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m_distance = cartDistance(m_location, m_target);
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calcAzimuth();
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calcElevation();
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}
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double getDistance()
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{
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return m_distance;
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}
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double getAzimuth()
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{
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return m_azimuth;
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}
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double getElevation()
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{
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return m_elevation;
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}
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private:
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double cartDistance(const AzElPoint& a, const AzElPoint& b);
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bool normVectorDiff(const AzElCartesian& a, const AzElCartesian& b, AzElCartesian& n);
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double geocentricLatitude(double latRad) const;
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double earthRadiusInMetres(double geodeticLatRad) const;
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void sphericalToCartesian(AzElPoint& point);
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void calcAzimuth();
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void calcElevation();
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AzElPoint m_location;
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AzElPoint m_target;
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double m_azimuth;
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double m_elevation;
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double m_distance;
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};
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#endif
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