astSetRefPosastSetRefPos
-
Set the reference position in a specified celestial coordinate system
- Description:
- This function
sets the reference position (see attributes RefRARefRA and RefDecRefDec) using
axis values (in radians) supplied within the celestial coordinate
system represented by a supplied SkyFrameSkyFrame.
- Synopsis:
- void astSetRefPos( AstSpecFrame
this, AstSkyFrame
frm, double lon,
double lat )
- Parameters:
-
this
-
Pointer to the SpecFrameSpecFrame.
-
frm
-
Pointer to the SkyFrame which defines the celestial coordinate
system in which the longitude and latitude values are supplied.
If NULL
is supplied, then the supplied longitude and latitude values are
assumed to be FK5 J2000 RA and Dec values.
-
lon
-
The longitude of the reference point, in the coordinate system
represented by the supplied SkyFrame (radians).
-
lat
-
The latitude of the reference point, in the coordinate system
represented by the supplied SkyFrame (radians).