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cartesian3dcoord.cpp
00001 /*************************************************************************** 00002 cartesian3dcoord.cpp - description 00003 ------------------- 00004 begin : Sat Nov 30 2002 00005 copyright : (C) 2002 by Fungmeista 00006 email : mizunoami44@users.sourceforge.net 00007 ***************************************************************************/ 00008 00009 /*************************************************************************** 00010 * * 00011 * This program is free software; you can redistribute it and/or modify * 00012 * it under the terms of the GNU General Public License as published by * 00013 * the Free Software Foundation; either version 2 of the License, or * 00014 * (at your option) any later version. * 00015 * * 00016 ***************************************************************************/ 00017 00018 #include <cmath> 00019 00020 #include "cartesian3dcoord.h" 00021 #include "sphericalcoord.h" 00022 00023 Cartesian3DCoord::Cartesian3DCoord(double x, double y, double z) : _x(x), _y(y), _z(z) 00024 { 00025 } 00026 00027 SphericalCoord Cartesian3DCoord::toSphericalCoord() 00028 { 00029 double azimuthal, polar, radial; 00030 00031 azimuthal = atan2(_y,_x); 00032 radial = sqrt(_x*_x+_y*_y+_z*_z); 00033 polar = acos(_z/radial); 00034 00035 return SphericalCoord(azimuthal,polar,radial); 00036 }