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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 /pkg/images/tv/tvmark/mkmag.x | |
| download | iraf-osx-40e5a5811c6ffce9b0974e93cdd927cbcf60c157.tar.gz | |
Repatch (from linux) of OSX IRAF
Diffstat (limited to 'pkg/images/tv/tvmark/mkmag.x')
| -rw-r--r-- | pkg/images/tv/tvmark/mkmag.x | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/pkg/images/tv/tvmark/mkmag.x b/pkg/images/tv/tvmark/mkmag.x new file mode 100644 index 00000000..956f50b4 --- /dev/null +++ b/pkg/images/tv/tvmark/mkmag.x @@ -0,0 +1,20 @@ +include <imhdr.h> + +# MK_MAG -- Procedure to compute the x and y magnification factors. + +procedure mk_mag (im, iw, xmag, ymag) + +pointer im # pointer to the frame buffer +pointer iw # pointer to the wcs structure +real xmag, ymag # x and y magnifications + +real xll, yll, xur, yur + +begin + # Compute the x and y magnification. + call iw_fb2im (iw, 1.0, 1.0, xll, yll) + call iw_fb2im (iw, real (IM_LEN(im,1)), real (IM_LEN(im,2)), xur, yur) + + xmag = abs (xur - xll) / (IM_LEN(im,1) - 1) + ymag = abs (yur - yll) / (IM_LEN(im,2) - 1) +end |