/usr/include/casacore/coordinates/Coordinates/GaussianConvert.h is in casacore-dev 2.2.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 | //# GaussianConvert.h: Class to convert units of Gaussians from pixel to world
//# Copyright (C) 1997,1998,1999,2000
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This library is free software; you can redistribute it and/or modify it
//# under the terms of the GNU Library General Public License as published by
//# the Free Software Foundation; either version 2 of the License, or (at your
//# option) any later version.
//#
//# This library 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 Library General Public
//# License for more details.
//#
//# You should have received a copy of the GNU Library General Public License
//# along with this library; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//# Internet email: aips2-request@nrao.edu.
//# Postal address: AIPS++ Project Office
//# National Radio Astronomy Observatory
//# 520 Edgemont Road
//# Charlottesville, VA 22903-2475 USA
//#
//# $Id$
#ifndef COORDINATES_GAUSSIANCONVERT_H
#define COORDINATES_GAUSSIANCONVERT_H
//# Includes
#include <casacore/casa/aips.h>
#include <casacore/casa/Arrays/Vector.h>
#include <casacore/coordinates/Coordinates/CoordinateSystem.h>
namespace casacore { //# NAMESPACE CASACORE - BEGIN
template<class T> class Quantum;
// <summary>
// Converts Gaussian parameters between pixel and world
// </summary>
// <use visibility=export>
// <reviewed reviewer="" date="" tests="">
// </reviewed>
// <prerequisite>
// <li> <linkto class=CoordinateSystem>CoordinateSystem</linkto>
// </prerequisite>
// <synopsis>
// Converts Gaussian parameters between world and pixel.
// In the pixel coordinate system ([0,0] in center of image)
// the position angle is positive +y to -x. This is consistent
// with Gaussian2D. In the world coordinate system the pa
// is positive N through E
// </synopsis>
// <example>
// <srcblock>
// </srcblock>
// </example>
// <todo asof="1998/12/11">
// <li> Position angle signs require more thinking in Casacore
// </todo>
class GaussianConvert
{
public:
// Default constructor
GaussianConvert ();
// Constructor. You specify which world axes (must be length 2)
// of the coordinate system are the relevant ones for
// your gaussian (x then y)
GaussianConvert (const CoordinateSystem& cSys,
const Vector<uInt>& worldAxes);
// Destructor
~GaussianConvert ();
// Copy constructor. Uses copy semantics.
GaussianConvert(const GaussianConvert& other);
// Assignment operator. Uses copy semantics.
GaussianConvert& operator=(const GaussianConvert& other);
// (Re)set the coordinate system
void setCoordinateSystem (const CoordinateSystem& cSys);
// Re(set) the world axes
void setWorldAxes (const Vector<uInt>& worldAxes);
// Convert Gaussian parameters from pixels to world. Returns
// False if it fails with an error message recoverable with
// function errorMessage. If you set the units of the output
// axis quanta they will be honoured, otherwise they will come out
// in the axis units of the coordinate system. For the output position angle,
// if the output units are not set, the units of the input position angle
// will be used.
Bool toWorld(Quantum<Double>& majorAxisOut, Quantum<Double>& minorAxisOut,
Quantum<Double>& positionAngleOut, Double majorAxisIn,
Double minorAxisIn, const Quantum<Double>& positionAngleIn);
// Convert Gaussian parameters from world to pixel. Returns
// False if it fails with an error message recoverable with
// function errorMessage. For the output position angle,
// if the output units are not set, the units of the input position angle
// will be used.
Bool toPixel(Double& majorAxisOut, Double& minorAxisOut,
Quantum<Double>& positionAngleOut, const Quantum<Double>& majorAxisIn,
const Quantum<Double>& minorAxisIn, const Quantum<Double>& positionAngleIn);
// Convert location
// <group>
Bool toPixel(Vector<Double>& pixel,
const Vector<Quantum<Double> >& world);
Bool toWorld(Vector<Quantum<Double> >& world,
const Vector<Double>& pixel);
// </group>
// Recover error messages from the conversion functions
String errorMessage() const {return itsErrorMessage;}
private:
CoordinateSystem itsCSys;
Vector<uInt> itsWorldAxes;
String itsErrorMessage;
Bool itsValid;
void convertAxes (Double& minorAxisOut, Double& majorAxisOut,
Quantum<Double>& positionAngleOut,
Double minorAxisIn, Double majorAxisIn,
const Quantum<Double>& positionAngleIn,
const CoordinateSystem& cSys,
String dir);
void checkCoordinateSystem();
void checkWorldAxes();
Double positionAngleRange(Double pa);
};
} //# NAMESPACE CASACORE - END
#endif
|