diff options
author | Stanislaw Halik <sthalik@misaki.pl> | 2013-09-14 15:34:44 +0200 |
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committer | Stanislaw Halik <sthalik@misaki.pl> | 2013-09-14 15:34:44 +0200 |
commit | c58c0af311892929dbce4e5437c4035214552438 (patch) | |
tree | 2a6d78d740b2a83f7fe5822068bbb006a3e8a8a9 /facetracknoir/rotation.h | |
parent | e695bca32e6f34461dfa720a2b693835adbb9422 (diff) |
Run dos2unix on the tree. No user-facing changes.
Diffstat (limited to 'facetracknoir/rotation.h')
-rw-r--r-- | facetracknoir/rotation.h | 128 |
1 files changed, 64 insertions, 64 deletions
diff --git a/facetracknoir/rotation.h b/facetracknoir/rotation.h index dd70ca77..e97ec0f0 100644 --- a/facetracknoir/rotation.h +++ b/facetracknoir/rotation.h @@ -1,64 +1,64 @@ -/* Copyright (c) 2012 Patrick Ruoff
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- */
-
-#ifndef ROTATION_H
-#define ROTATION_H
-#include <cmath>
-// ----------------------------------------------------------------------------
-class Rotation {
-
-public:
- Rotation() : a(1.0),b(0.0),c(0.0),d(0.0) {}
- Rotation(double yaw, double pitch, double roll) { fromEuler(yaw, pitch, roll); }
- Rotation(double a, double b, double c, double d) : a(a),b(b),c(c),d(d) {}
-
- Rotation inv(){ // inverse
- return Rotation(a,-b,-c, -d);
- }
-
-
- // conversions
- // see http://en.wikipedia.org/wiki/Conversion_between_quaternions_and_Euler_angles
- void fromEuler(double yaw, double pitch, double roll)
- {
-
- double sin_phi = sin(roll/2.0);
- double cos_phi = cos(roll/2.0);
- double sin_the = sin(pitch/2.0);
- double cos_the = cos(pitch/2.0);
- double sin_psi = sin(yaw/2.0);
- double cos_psi = cos(yaw/2.0);
-
- a = cos_phi*cos_the*cos_psi + sin_phi*sin_the*sin_psi;
- b = sin_phi*cos_the*cos_psi - cos_phi*sin_the*sin_psi;
- c = cos_phi*sin_the*cos_psi + sin_phi*cos_the*sin_psi;
- d = cos_phi*cos_the*sin_psi - sin_phi*sin_the*cos_psi;
- }
-
- void toEuler(double& yaw, double& pitch, double& roll)
- {
- roll = atan2(2.0*(a*b + c*d), 1.0 - 2.0*(b*b + c*c));
- pitch = asin(2.0*(a*c - b*d));
- yaw = atan2(2.0*(a*d + b*c), 1.0 - 2.0*(c*c + d*d));
- }
-
- const Rotation operator*(const Rotation& B)
- {
- const Rotation& A = *this;
- return Rotation(A.a*B.a - A.b*B.b - A.c*B.c - A.d*B.d, // quaternion multiplication
- A.a*B.b + A.b*B.a + A.c*B.d - A.d*B.c,
- A.a*B.c - A.b*B.d + A.c*B.a + A.d*B.b,
- A.a*B.d + A.b*B.c - A.c*B.b + A.d*B.a);
- }
-
-protected:
- double a,b,c,d; // quaternion coefficients
-};
-
-
-
-#endif //ROTATION_H
+/* Copyright (c) 2012 Patrick Ruoff + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + */ + +#ifndef ROTATION_H +#define ROTATION_H +#include <cmath> +// ---------------------------------------------------------------------------- +class Rotation { + +public: + Rotation() : a(1.0),b(0.0),c(0.0),d(0.0) {} + Rotation(double yaw, double pitch, double roll) { fromEuler(yaw, pitch, roll); } + Rotation(double a, double b, double c, double d) : a(a),b(b),c(c),d(d) {} + + Rotation inv(){ // inverse + return Rotation(a,-b,-c, -d); + } + + + // conversions + // see http://en.wikipedia.org/wiki/Conversion_between_quaternions_and_Euler_angles + void fromEuler(double yaw, double pitch, double roll) + { + + double sin_phi = sin(roll/2.0); + double cos_phi = cos(roll/2.0); + double sin_the = sin(pitch/2.0); + double cos_the = cos(pitch/2.0); + double sin_psi = sin(yaw/2.0); + double cos_psi = cos(yaw/2.0); + + a = cos_phi*cos_the*cos_psi + sin_phi*sin_the*sin_psi; + b = sin_phi*cos_the*cos_psi - cos_phi*sin_the*sin_psi; + c = cos_phi*sin_the*cos_psi + sin_phi*cos_the*sin_psi; + d = cos_phi*cos_the*sin_psi - sin_phi*sin_the*cos_psi; + } + + void toEuler(double& yaw, double& pitch, double& roll) + { + roll = atan2(2.0*(a*b + c*d), 1.0 - 2.0*(b*b + c*c)); + pitch = asin(2.0*(a*c - b*d)); + yaw = atan2(2.0*(a*d + b*c), 1.0 - 2.0*(c*c + d*d)); + } + + const Rotation operator*(const Rotation& B) + { + const Rotation& A = *this; + return Rotation(A.a*B.a - A.b*B.b - A.c*B.c - A.d*B.d, // quaternion multiplication + A.a*B.b + A.b*B.a + A.c*B.d - A.d*B.c, + A.a*B.c - A.b*B.d + A.c*B.a + A.d*B.b, + A.a*B.d + A.b*B.c - A.c*B.b + A.d*B.a); + } + +protected: + double a,b,c,d; // quaternion coefficients +}; + + + +#endif //ROTATION_H |