105 lines
2.9 KiB
C++
105 lines
2.9 KiB
C++
/*
|
|
* Copyright (C) 2010-2015 Paul Davis <paul@linuxaudiosystems.com>
|
|
*
|
|
* 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; either version 2 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 for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <cfloat>
|
|
#include <cmath>
|
|
|
|
#include "pbd/libpbd_visibility.h"
|
|
|
|
namespace PBD {
|
|
|
|
LIBPBD_API void spherical_to_cartesian (double azi, double ele, double len, double& x, double& y, double& z);
|
|
LIBPBD_API void cartesian_to_spherical (double x, double y, double z, double& azi, double& ele, double& len);
|
|
|
|
struct AngularVector;
|
|
|
|
struct LIBPBD_API CartesianVector {
|
|
double x;
|
|
double y;
|
|
double z;
|
|
|
|
CartesianVector () : x(0.0), y(0.0), z(0.0) {}
|
|
CartesianVector (double xp, double yp, double zp = 0.0) : x(xp), y(yp), z(zp) {}
|
|
|
|
CartesianVector& translate (CartesianVector& other, double xtranslate, double ytranslate, double ztranslate = 0.0) {
|
|
other.x += xtranslate;
|
|
other.y += ytranslate;
|
|
other.z += ztranslate;
|
|
return other;
|
|
}
|
|
|
|
CartesianVector& scale (CartesianVector& other, double xscale, double yscale, double zscale = 1.0) {
|
|
other.x *= xscale;
|
|
other.y *= yscale;
|
|
other.z *= zscale;
|
|
return other;
|
|
}
|
|
|
|
inline void angular (AngularVector& a) const;
|
|
};
|
|
|
|
struct LIBPBD_API AngularVector {
|
|
double azi;
|
|
double ele;
|
|
double length;
|
|
|
|
AngularVector () : azi(0.0), ele(0.0), length (0.0) {}
|
|
AngularVector (double a, double e, double l = 1.0) : azi(a), ele(e), length (l) {}
|
|
|
|
AngularVector operator- (const AngularVector& other) const {
|
|
AngularVector r;
|
|
r.azi = azi - other.azi;
|
|
r.ele = ele - other.ele;
|
|
r.length = length - other.length;
|
|
return r;
|
|
}
|
|
|
|
AngularVector operator+ (const AngularVector& other) const {
|
|
AngularVector r;
|
|
r.azi = azi + other.azi;
|
|
r.ele = ele + other.ele;
|
|
r.length = length + other.length;
|
|
return r;
|
|
}
|
|
|
|
bool operator== (const AngularVector& other) const {
|
|
return fabs (azi - other.azi) <= FLT_EPSILON &&
|
|
fabs (ele - other.ele) <= FLT_EPSILON &&
|
|
fabs (length - other.length) <= FLT_EPSILON;
|
|
}
|
|
|
|
bool operator!= (const AngularVector& other) const {
|
|
return fabs (azi - other.azi) > FLT_EPSILON ||
|
|
fabs (ele - other.ele) > FLT_EPSILON ||
|
|
fabs (length - other.length) > FLT_EPSILON;
|
|
}
|
|
|
|
void cartesian (CartesianVector& c) const {
|
|
spherical_to_cartesian (azi, ele, length, c.x, c.y, c.z);
|
|
}
|
|
};
|
|
|
|
inline void CartesianVector::angular (AngularVector& a) const {
|
|
cartesian_to_spherical (x, y, z, a.azi, a.ele, a.length);
|
|
}
|
|
|
|
}
|
|
|