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diff --git a/pkg/obsolete/doc/radplt.hlp b/pkg/obsolete/doc/radplt.hlp new file mode 100644 index 00000000..eb98d038 --- /dev/null +++ b/pkg/obsolete/doc/radplt.hlp @@ -0,0 +1,57 @@ +.help radplt Dec85 obsolete +.ih +NAME +radplt -- plot a radial profile of a stellar image +.ih +USAGE +radplt input x_init y_init +.ih +PARAMETERS +.ls input +the list of images which contain the star whose profile is to be plotted +.le +.ls x_init +the approximate column coordinate as a starting point for the centering +.le +.ls y_init +the approximate line (row) coordinate as a starting point for the centering +.le +.ls cboxsize = 5 +the size of the extraction box to be used during the centering process +.le +.ls rboxsize = 21 +the size of the extraction box to be used for the radial profile. The +profile will extend to sqrt(2) * rboxsize / 2. This is the length +of the diagonal from the box center to a corner, and corresponds to about +14 pixels for the default value. +.le +.ih +DESCRIPTION +Given the approximate coordinates of the center of a star, (x_init, y_init), +RADPLT will compute a more accurate center using the algorithms described in +the Kitt Peak publication "Stellar Magnitudes from Digital Images" under +the Mountain Photometry Code section and then plot the intensity values +in the profile extraction box as a function of distance from the center. +This is effectively a radial profile. + +The values for both box sizes should be odd. +.ih +EXAMPLES +The following example plots the profile of a star near (123, 234): +.sp 1 +.nj +.nf +cl> radplt m92red 123 234 +.fi +.ju +.ih +BUGS +The routine will probably fail if the desired star is within 2 or 3 pixels +of the image boundary. +.ih +USE INSTEAD +plot.pradprof +.ih +SEE ALSO +imcntr +.endhelp |