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| author | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-07-08 20:46:52 -0400 |
|---|---|---|
| committer | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-07-08 20:46:52 -0400 |
| commit | fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 (patch) | |
| tree | bdda434976bc09c864f2e4fa6f16ba1952b1e555 /sys/vops/abgtk.gx | |
| download | iraf-linux-fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4.tar.gz | |
Initial commit
Diffstat (limited to 'sys/vops/abgtk.gx')
| -rw-r--r-- | sys/vops/abgtk.gx | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/sys/vops/abgtk.gx b/sys/vops/abgtk.gx new file mode 100644 index 00000000..93be1524 --- /dev/null +++ b/sys/vops/abgtk.gx @@ -0,0 +1,45 @@ +# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc. + +# ABGTK -- Vector boolean greater than constant. C[i], type INT, is set to 1 +# if A[i] is greater than B, else C[i] is set to zero. + +procedure abgtk$t (a, b, c, npix) + +PIXEL a[ARB] +PIXEL b +int c[ARB] +int npix +int i +$if (datatype == x) +real abs_b +$endif + +begin + # The case b==0 is perhaps worth optimizing. On many machines this + # will save a memory fetch. + + if (b == 0$f) { + do i = 1, npix + $if (datatype == x) + if (abs (a[i]) > 0) + $else + if (a[i] > 0) + $endif + c[i] = 1 + else + c[i] = 0 + } else { + $if (datatype == x) + abs_b = abs (b) + $endif + do i = 1, npix + $if (datatype == x) + if (abs (a[i]) > abs_b) + $else + if (a[i] > b) + $endif + c[i] = 1 + else + c[i] = 0 + } +end |