ardour/ardour
ardour/ardour
13
1
Fork 0
Code Pull Requests Releases Activity

remove cruft

Browse Source
This commit is contained in:
Robin Gareus 2015-08-07 21:10:47 +02:00
parent 69ac138bf2
commit 9e918563df
1 changed files with 1 additions and 43 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
libs/pbd/cartesian.cc
View File

@ -41,13 +41,12 @@ PBD::spherical_to_cartesian (double azi, double ele, double len, double& x, doub
void
PBD::cartesian_to_spherical (double x, double y, double z, double& azimuth, double& elevation, double& length)
{
#if 1
/* converts cartesian coordinates to cylindrical in degrees*/
double rho, theta, phi;
rho = sqrt (x*x + y*y + z*z);
phi = acos (1.0/rho);
//phi = acos (1.0 / rho);
theta = atan2 (y, x);
/* XXX for now, clamp phi to zero */
@ -67,46 +66,5 @@ PBD::cartesian_to_spherical (double x, double y, double z, double& azimuth, doub
}
length = rho;
#else
/* converts cartesian coordinates to cylindrical in degrees*/
const double atorad = 2.0 * M_PI / 360.0;
double atan_y_per_x, atan_x_pl_y_per_z;
double distance;
if (x == 0.0) {
atan_y_per_x = M_PI / 2;
} else {
atan_y_per_x = atan2 (y,x);
}
if (y < 0.0) {
/* below x-axis: atan2 returns 0 .. -PI (negative) so convert to degrees and ADD to 180 */
azimuth = 180.0 + (atan_y_per_x / (M_PI/180.0) + 180.0);
} else {
/* above x-axis: atan2 returns 0 .. +PI so convert to degrees */
azimuth = atan_y_per_x / atorad;
}
distance = sqrt (x*x + y*y);
if (z == 0.0) {
atan_x_pl_y_per_z = 0.0;
} else {
atan_x_pl_y_per_z = atan2 (z,distance);
}
if (distance == 0.0) {
if (z < 0.0) {
atan_x_pl_y_per_z = -M_PI/2.0;
} else if (z > 0.0) {
atan_x_pl_y_per_z = M_PI/2.0;
}
}
elevation = atan_x_pl_y_per_z / atorad;
// distance = sqrtf (x*x + y*y + z*z);
#endif
}