DRAW-PLOT-USING-CURSOR

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DRAW-PLOT-USING-CURSOR

I am still not sure whether I should have written this function. This takes an existing spectrum, and lets you edit it interactively using the graphics cursor. Just move the cursor to the point at which you want to start modifying, and hit the `+' key. Then move the cursor again. Each time you hit the `+' key again the straight line segment between the last two positions is plotted on the terminal, and substituted for the data in the X-register. Hit the `E' or `Q' keys to stop, in the usual way.

Clearly only applicable when the plot device is the terminal and INTERACTIVE is set true (i.e.INTERACTIVE mode is selected).

Examples:

    >> draw-plot-using-cursor<CR>

$\begin{figure} % latex2html id marker 1490 \psfig{psfile=draw-plot.ps hoffset=60... ...ursor; the outer parts of the spectrum are unchanged.} }\end{center}\end{figure}$

Jamie Leech 2004-08-16