NaMaster
|
Curved-sky information. More...
#include <namaster.h>
Data Fields | |
int | is_healpix |
is this HEALPix pixelization? More... | |
long | n_eq |
equivalent of nside, number of pixels in the equatorial ring More... | |
int | lmax_sht |
Maximum multipole to compute spherical harmonic transform. More... | |
int | nx_short |
Number of grid points in the x dimension before completing the circle. More... | |
int | nx |
Number of grid points in the phi dimension. More... | |
int | ny |
Number of grid points in the theta dimension. More... | |
long | npix |
Total number of pixels (given by nx * ny . More... | |
flouble | Delta_theta |
pixel size in theta direction More... | |
flouble | Delta_phi |
pixel size in phi direction More... | |
flouble | phi0 |
flouble | theta0 |
Curved-sky information.
This structure contains all the information defining a given full-sky patch. It describes either a HEALPix grid (in which case is_healpix!=0) or a CAR patch (for is_healpix==0). If the latter, then the CAR pixelization must conform to the Clenshaw-Curtis sampling. In this case the colatitude theta must be sampled at N points going from 0 to pi (including both), separated by an interval Dtheta = pi/(N-1). Not all iso-latitude rings must be stored in the patch (i.e. ny!=N necessarily). See the documentation for nmt_curvedsky_info_alloc for further information on the constraints that some of the members of this structure must fulfill.
flouble nmt_curvedsky_info::Delta_phi |
pixel size in phi direction
flouble nmt_curvedsky_info::Delta_theta |
pixel size in theta direction
int nmt_curvedsky_info::is_healpix |
is this HEALPix pixelization?
int nmt_curvedsky_info::lmax_sht |
Maximum multipole to compute spherical harmonic transform.
long nmt_curvedsky_info::n_eq |
equivalent of nside, number of pixels in the equatorial ring
long nmt_curvedsky_info::npix |
Total number of pixels (given by nx
* ny
.
int nmt_curvedsky_info::nx |
Number of grid points in the phi dimension.
int nmt_curvedsky_info::nx_short |
Number of grid points in the x dimension before completing the circle.
int nmt_curvedsky_info::ny |
Number of grid points in the theta dimension.
flouble nmt_curvedsky_info::phi0 |
flouble nmt_curvedsky_info::theta0 |