./toolbox
gauss_plot_fn.pro

Last modification date:

Wed Sep 28 13:27:11 2016

gauss_plot_fn

function gauss_plot_fn(params, minchan, maxchan, chanperpix, count=variable)

Generate x, y pairs to be plotted (x in channels) given a structure describing the number of gaussians and the current limits and resolution of the plotter.

This is used by gshow to call oplotfn so that the function is used to regenerate the gaussian values to be plotted as the plotter changes (e.g. zooming) which might otherwise lead to poorly sampled gaussians on unzoomed plots being unnecessarily jagged when zoomed in.

Most users will never use this directly although it could be used as a template when generating functions to use with oplotfn.

Returns

arr - 2D array, arr[0,*] is the x values and arr[1,*] the y.

Version

$Id$

Parameters
params in, required structure	The fields in this structure are the names of the last 3 parameters in make_gauss_data. See the documention there for more information (fields are a, noise and offset).
minchan in, required double	The minimum channel number of the current plot window's x-axis.
maxchan in, required double	The maximum channel number of the current plot window's x-axis.
chanperpix in, required double	The channels per pixel of the current plot window's x-axis. This value is always positive.

Keywords
count out, required variable	The total number of points in arr to plot. Should be equal to 0 (do not plot any points) or the number of elements along the second axis of arr.