diff options
| 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 /noao/onedspec/ecidentify/ecpeak.x | |
| download | iraf-linux-fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4.tar.gz | |
Initial commit
Diffstat (limited to 'noao/onedspec/ecidentify/ecpeak.x')
| -rw-r--r-- | noao/onedspec/ecidentify/ecpeak.x | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/noao/onedspec/ecidentify/ecpeak.x b/noao/onedspec/ecidentify/ecpeak.x new file mode 100644 index 00000000..f797fbac --- /dev/null +++ b/noao/onedspec/ecidentify/ecpeak.x @@ -0,0 +1,24 @@ +include "ecidentify.h" + +# EC_PEAK -- Find the peak value above continuum. + +double procedure ec_peak (ec, pix) + +pointer ec # ID pointer +double pix # Pixel position +double peak # Peak value + +int c, l, u + +begin + if (IS_INDEFD(pix)) + return (INDEFD) + + c = nint (pix) + l = max (1, nint (pix - EC_FWIDTH(ec))) + u = min (EC_NPTS(ec), nint (pix + EC_FWIDTH(ec))) + peak = IMDATA(ec,c) - (IMDATA(ec,l) + + IMDATA(ec,u)) / 2. + + return (peak) +end |