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authorJoseph Hunkeler <jhunkeler@gmail.com>2015-07-08 20:46:52 -0400
committerJoseph Hunkeler <jhunkeler@gmail.com>2015-07-08 20:46:52 -0400
commitfa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 (patch)
treebdda434976bc09c864f2e4fa6f16ba1952b1e555 /pkg/xtools/skywcs/doc/skstati.hlp
downloadiraf-linux-fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4.tar.gz
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+.help skstati Mar00 Skywcs
+.ih
+NAME
+skstati -- get an integer sky coordinate descriptor parameter
+.ih
+SYNOPSIS
+include <skywcs.h>
+
+ival = sk_stati (coo, parameter)
+
+.nf
+pointer coo # the input sky coordinate descriptor
+int parameter # the integer parameter to be returned
+.fi
+.ih
+ARGUMENTS
+.ls coo
+The sky coordinate descriptor.
+.le
+.ls parameter
+Parameter to be returned. The integer parameter definitions in skywcs.h are:
+.nf
+ S_CTYPE # the celestial coordinate system type
+ S_RADECSYS # the equatorial system type
+ S_NLNGUNITS # the ra / longitude units
+ S_NLATUNITS # the dec/ latitude units
+ S_WTYPE # the projection type
+ S_PLNGAX # the physical ra / longitude axis
+ S_PLATAX # the physical dec / latitude axis
+ S_XLAX # the logical ra / longitude axis
+ S_YLAX # the logical dec / latitude axis
+ S_PIXTYPE # the IRAF pixel coordinate system type
+ S_NLNGAX # the length of the ra / longitude axis
+ S_NLATAX # the length of the dec / latitude axis
+ S_STATUS # the coordinate system status
+.fi
+.le
+.ih
+DESCRIPTION
+Sk_stati returns the values of integer sky coordinate descriptor parameters.
+
+.ih
+NOTES
+Permitted values of S_CTYPE are CTYPE_EQUATORIAL, CTYPE_ECLIPTIC,
+CTYPE_GALACTIC, and CTYPE_SUPERGALACTIC. The corresponding string dictionary
+is CTYPE_LIST.
+
+Permitted types of S_RADECSYS are EQTYPE_FK4, EQTYPE_FK4NOE,
+EQTYPE_FK5, EQTYPE, ICRS, and EQTYPE_GAPPT. The corresponding string
+dictionary is EQTYPE_LIST.
+
+Permitted values of S_WTYPE are WTYPE_LIN, WTYPE_AZP, WTYPE_TAN, WTYPE_SIN,
+WTYPE_STG, WTYPE_ARC, WTYPE_ZPN, WTYPE_ZEA, WTYPE_AIR, WTYPE_CYP, WTYPE_CAR,
+WTYPE_MER, WTYPE_CEA, WTYPE_COP, WTYPE_COD, WTYPE_COE, WTYPE_COO, WTYPE_BON,
+WTYPE_PCO, WTYPE_GLS, WTYPE_PAR, WTYPE_AIT, WTYPE_MOL, WTYPE_CSC, WTYPE_QSC,
+WTYPE_TSC, WTYPE_TNX, WTYPE_ZPX. The corresponding string dictionary is
+WTYPE_LIST.
+
+Permitted values of S_PIXTYPE are PIXTYPE_LOGICAL, PIXTYPE_TV,
+PIXTYPE_PHYSICAL. and PIXTPE_WORLD. The corresponding string dictionary
+is PIXTYPE_LIST.
+
+Permitted values of S_NLNGUNITS are SKY_HOURS, SKY_DEGREES, and SKY_RADIANS.
+The corresponding string dictionary is SKY_LNG_UNITLIST.
+Permitted values of S_NLATUNITS are SKY_DEGREES, and SKY_RADIANS.
+The corresponding string dictionary is SKY_LAT_UNITLIST.
+
+The parameters S_CTYPE, S_RADECSYS, S_NLNGUNITS, and S_NLATUNITS are
+important for all sky coordinate descriptors regardless of the source.
+The parameters S_WTYPE, S_PLNGAX, S_PLATAX, S_XLAX, S_YLAX, S_PIXTYPE,
+S_NLNGAX, and S_NLATAX are only important for sky coordinate descriptors
+derived from an image sky coordinate systems. S_STATUS is OK if the sky
+coordinate descriptor describes a valid celestial coordinate system, ERR
+otherwise.
+
+.ih
+SEE ALSO
+skstatd, skstats
+.endhelp