A structure containing a spatial two-axis WCS. More...
#include <muse_wcs.h>
Data Fields | |
| double | crpix2 |
| double | crval2 |
| double | cd22 |
| double | cddet |
| cpl_boolean | iscelsph |
A structure containing a spatial two-axis WCS.
This structure is specially adapted to speed up coordinate transforms in the muse_wcs_*_fast() functions, it does not contain a full spatial WCS as cpl_wcs. But the latter is more complicated and time-consuming to handle.
Definition at line 105 of file muse_wcs.h.
| double muse_wcs::cd22 |
the four elements of the CDi_j matrix
Definition at line 108 of file muse_wcs.h.
Referenced by muse_pixgrid_create(), muse_resampling_collapse_pixgrid(), muse_wcs_celestial_from_pixel_fast(), muse_wcs_new(), muse_wcs_pixel_from_celestial_fast(), muse_wcs_pixel_from_projplane_fast(), and muse_wcs_projplane_from_pixel_fast().
| double muse_wcs::cddet |
the deteminant of the CDi_j matrix
Definition at line 109 of file muse_wcs.h.
Referenced by muse_wcs_new(), muse_wcs_pixel_from_celestial(), muse_wcs_pixel_from_celestial_fast(), muse_wcs_pixel_from_projplane(), and muse_wcs_pixel_from_projplane_fast().
| double muse_wcs::crpix2 |
the reference point
Definition at line 106 of file muse_wcs.h.
Referenced by muse_pixgrid_create(), muse_wcs_celestial_from_pixel_fast(), muse_wcs_new(), muse_wcs_pixel_from_celestial_fast(), muse_wcs_pixel_from_projplane_fast(), and muse_wcs_projplane_from_pixel_fast().
| double muse_wcs::crval2 |
the coordinate values at the reference point
Definition at line 107 of file muse_wcs.h.
Referenced by muse_euro3dcube_collapse(), muse_pixgrid_create(), muse_wcs_celestial_from_pixel_fast(), muse_wcs_new(), muse_wcs_pixel_from_celestial(), muse_wcs_pixel_from_celestial_fast(), muse_wcs_pixel_from_projplane_fast(), and muse_wcs_projplane_from_pixel_fast().
| cpl_boolean muse_wcs::iscelsph |
TRUE signifies an existing celestial spherical projection, * FALSE for other types
Definition at line 112 of file muse_wcs.h.
Referenced by muse_euro3dcube_collapse(), muse_pixgrid_create(), muse_resampling_collapse_pixgrid(), and muse_resampling_euro3d().
1.6.1