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-rw-r--r--filter-hamilton/hamilton-tools.cpp135
1 files changed, 0 insertions, 135 deletions
diff --git a/filter-hamilton/hamilton-tools.cpp b/filter-hamilton/hamilton-tools.cpp
deleted file mode 100644
index e18082a8..00000000
--- a/filter-hamilton/hamilton-tools.cpp
+++ /dev/null
@@ -1,135 +0,0 @@
-#include "hamilton-tools.h"
-#include <cmath>
-
-double VectorLength(const tVector v)
-{
- return(sqrt(v.v[0]*v.v[0] + v.v[1]*v.v[1] + v.v[2]*v.v[2]));
-}
-
-double sqr(const double v) { return(v*v); }
-
-double VectorDistance(const double v1[], const tVector v2)
-{
- return(sqrt(sqr(v2.v[0]-v1[0])+sqr(v2.v[1]-v1[1])+sqr(v2.v[2]-v1[2])));
-}
-
-tVector Lerp(const tVector s, const double d[], const double alpha)
-{
- tVector V;
- V.v[0] = s.v[0] + (d[0] - s.v[0]) * alpha;
- V.v[1] = s.v[1] + (d[1] - s.v[1]) * alpha;
- V.v[2] = s.v[2] + (d[2] - s.v[2]) * alpha;
- return(V);
-}
-
-tQuat QuatFromAngleAxe(const double angle, const tVector axe)
-{
- double a = TO_RAD * 0.5 * angle;
- double d = sin(a) / VectorLength(axe);
- return ( tQuat (
- axe.v[0] * d,
- axe.v[1] * d,
- axe.v[2] * d,
- cos(a)
- )
- );
-}
-
-tQuat QuatMultiply(const tQuat qL, const tQuat qR)
-{
- tQuat Q;
- Q.x = qL.w*qR.x + qL.x*qR.w + qL.y*qR.z - qL.z*qR.y;
- Q.y = qL.w*qR.y + qL.y*qR.w + qL.z*qR.x - qL.x*qR.z;
- Q.z = qL.w*qR.z + qL.z*qR.w + qL.x*qR.y - qL.y*qR.x;
- Q.w = qL.w*qR.w - qL.x*qR.x - qL.y*qR.y - qL.z*qR.z;
- return(Q);
-}
-
-double AngleBetween(const tQuat S, const tQuat D)
-{
- return( TO_DEG * 2*acos(fabs(S.x*D.x + S.y*D.y + S.z*D.z + S.w*D.w)) );
-}
-
-tQuat QuatFromYPR(const double YPR[])
-{
- tQuat Q, Qp, Qy;
- Q = QuatFromAngleAxe( -YPR[2], {0, 0, 1} ); //Roll, Z axe
- Qp = QuatFromAngleAxe( -YPR[1], {1, 0, 0} ); //Pitch, X axe
- Qy = QuatFromAngleAxe( -YPR[0], {0, 1, 0} ); //Yaw, Y axe
-
- Q = QuatMultiply(Qp, Q);
- return(QuatMultiply(Qy, Q));
-}
-
-void Normalize(tQuat Q)
-{
- double m = sqrt(Q.x*Q.x + Q.y*Q.y + Q.z*Q.z + Q.w*Q.w);
- if (m > EPSILON)
- {
- m = 1 / m;
- Q.x = Q.x * m;
- Q.y = Q.y * m;
- Q.z = Q.z * m;
- Q.w = Q.w * m;
- }
- else Q = tQuat(0, 0, 0, 1);
-}
-
-tQuat Slerp(const tQuat S, const tQuat D, const double alpha)
-{
- // calc cosine of half angle
- double cosin = S.x*D.x + S.y*D.y + S.z*D.z + S.w*D.w;
-
- // select nearest rotation direction
- tQuat Q;
- if (cosin < 0)
- {
- cosin = - cosin;
- Q.x = - D.x;
- Q.y = - D.y;
- Q.z = - D.z;
- Q.w = - D.w;
- }
- else Q = D;
-
- // calculate coefficients
- double scale0, scale1;
- if ((1.0 - cosin) > EPSILON)
- {
- double omega = acos(cosin);
- double sinus = 1 / sin(omega);
- scale0 = sin((1.0 - alpha) * omega) * sinus;
- scale1 = sin(alpha * omega)* sinus;
- }
- else
- {
- scale0 = 1.0 - alpha;
- scale1 = alpha;
- }
-
- Q.x = scale0 * S.x + scale1 * Q.x;
- Q.y = scale0 * S.y + scale1 * Q.y;
- Q.z = scale0 * S.z + scale1 * Q.z;
- Q.w = scale0 * S.w + scale1 * Q.w;
-
- Normalize(Q);
-
- return( Q );
-}
-
-void QuatToYPR(const tQuat Q, double YPR[])
-{
- const double xx = Q.x * Q.x;
- const double xy = Q.x * Q.y;
- const double xz = Q.x * Q.z;
- const double xw = Q.x * Q.w;
- const double yy = Q.y * Q.y;
- const double yz = Q.y * Q.z;
- const double yw = Q.y * Q.w;
- const double zz = Q.z * Q.z;
- const double zw = Q.z * Q.w;
-
- YPR[0] = TO_DEG * ( -atan2( 2 * ( xz + yw ), 1 - 2 * ( xx + yy ) ));
- YPR[1] = TO_DEG * ( asin ( 2 * ( yz - xw ) ));
- YPR[2] = TO_DEG * ( -atan2( 2 * ( xy + zw ), 1 - 2 * ( xx + zz ) ));
-}