Paul Davis
553cf2982c
git-svn-id: svn://localhost/ardour2/branches/3.0@8091 d708f5d6-7413-0410-9779-e7cbd77b26cf
106 lines
3.2 KiB
C++
106 lines
3.2 KiB
C++
/*
|
|
Copyright (C) 2010 Paul Davis
|
|
|
|
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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#ifndef __libpbd_cartesian_h__
|
|
#define __libpbd_cartesian_h__
|
|
|
|
#include <cfloat>
|
|
#include <cmath>
|
|
|
|
namespace PBD {
|
|
|
|
void azi_ele_to_cart (double azi, double ele, double& x, double& y, double& z);
|
|
void cart_to_azi_ele (double x, double y, double z, double& azi, double& ele);
|
|
|
|
struct AngularVector;
|
|
|
|
struct 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;
|
|
}
|
|
|
|
void angular (AngularVector&) const;
|
|
};
|
|
|
|
struct 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 {
|
|
azi_ele_to_cart (azi, ele, c.x, c.y, c.z);
|
|
}
|
|
};
|
|
|
|
inline
|
|
void CartesianVector::angular (AngularVector& a) const {
|
|
cart_to_azi_ele (x, y, z, a.azi, a.ele);
|
|
}
|
|
|
|
}
|
|
|
|
#endif /* __libpbd_cartesian_h__ */
|