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Diffstat (limited to 'sys/vops/altr.gx')
| -rw-r--r-- | sys/vops/altr.gx | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/sys/vops/altr.gx b/sys/vops/altr.gx new file mode 100644 index 00000000..866c9e03 --- /dev/null +++ b/sys/vops/altr.gx @@ -0,0 +1,20 @@ +# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc. + +# ALTR -- Linearly map a vector into another vector of the same datatype. +# This is the most general form. See also ALTA and ALTM. +# b[i] = (a[i] + k1) * k2 + k3 + +procedure altr$t (a, b, npix, k1, k2, k3) + +PIXEL a[ARB], b[ARB] +$if (datatype == ld) +double k1, k2, k3 +$else +real k1, k2, k3 +$endif +int npix, i + +begin + do i = 1, npix + b[i] = (a[i] + k1) * k2 + k3 +end |