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| author | Joe Hunkeler <jhunkeler@gmail.com> | 2015-08-11 16:51:37 -0400 |
|---|---|---|
| committer | Joe Hunkeler <jhunkeler@gmail.com> | 2015-08-11 16:51:37 -0400 |
| commit | 40e5a5811c6ffce9b0974e93cdd927cbcf60c157 (patch) | |
| tree | 4464880c571602d54f6ae114729bf62a89518057 /sys/vops/alut.gx | |
| download | iraf-osx-40e5a5811c6ffce9b0974e93cdd927cbcf60c157.tar.gz | |
Repatch (from linux) of OSX IRAF
Diffstat (limited to 'sys/vops/alut.gx')
| -rw-r--r-- | sys/vops/alut.gx | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/sys/vops/alut.gx b/sys/vops/alut.gx new file mode 100644 index 00000000..f4e01fb3 --- /dev/null +++ b/sys/vops/alut.gx @@ -0,0 +1,22 @@ +# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc. + +# ALUT -- Map an array using table lookup. Note that an input value of zero +# indexes the first element of the lookup table. No bounds checking is +# performed. + +procedure alut$t (a, b, npix, lut) + +$if (datatype == rd) +int a[ARB] # input array of indices +$else +PIXEL a[ARB] +$endif + +PIXEL b[ARB] # output data array +PIXEL lut[ARB] # lookup table +int npix, i + +begin + do i = 1, npix + b[i] = lut[a[i]+1] +end |