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Diffstat (limited to 'math/slalib/doc/ds2tp.hlp')
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diff --git a/math/slalib/doc/ds2tp.hlp b/math/slalib/doc/ds2tp.hlp new file mode 100644 index 00000000..ff772145 --- /dev/null +++ b/math/slalib/doc/ds2tp.hlp @@ -0,0 +1,30 @@ +.help ds2tp Jun99 "Slalib Package" +.nf + + SUBROUTINE slDSTP (RA, DEC, RAZ, DECZ, XI, ETA, J) + + - - - - - - + D S T P + - - - - - - + + Projection of spherical coordinates onto tangent plane: + "gnomonic" projection - "standard coordinates" (double precision) + + Given: + RA,DEC dp spherical coordinates of point to be projected + RAZ,DECZ dp spherical coordinates of tangent point + + Returned: + XI,ETA dp rectangular coordinates on tangent plane + J int status: 0 = OK, star on tangent plane + 1 = error, star too far from axis + 2 = error, antistar on tangent plane + 3 = error, antistar too far from axis + + P.T.Wallace Starlink 18 July 1996 + + Copyright (C) 1996 Rutherford Appleton Laboratory + Copyright (C) 1995 Association of Universities for Research in Astronomy Inc. + +.fi +.endhelp |