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Re: POLYFILL erases my tick values - solution? [message #21852]

Sun, 24 September 2000 23:23

R.Bauer
Messages: 1424
Registered: November 1998

Senior Member

Andrew wrote:
>
> Dear c.l.i-p,
>
> I am using POLYFILL to shade various regions of an X-Y plot different
> shades of grey. I use PLOT (with /nodata) to draw the axes, then I
> use PLOTS to draw a bunch of lines, etc. (In this case, I'm making a
> simple diagram, not really plotting data, but the question is pretty
> general.)
>
> I'm making PostScript output so I am limited to solid colors
> as opposed to patterns (is there a good reason for that???), but
> so far that's not my real problem.
>
> The problem is that POLYFILL seems to obliterate everything in
> its path, including axis tick values. For the lines I draw, there is
> an easy solution: I just shade first, then draw. But I am working with
> \DATA coordinates, so I'm quite sure (???) I have to PLOT before I can
> POLYFILL, hence the problem that the tick values are over-shaded.
>
> Even the RSI "Using IDL" manual, 1998 paper version, p. 190,
> shows a (very ugly!) example of shading that erases tick values.
>
> The best solution I have found is to use the AXIS procedure
> after POLYFILL, to re-draw the axis.
>
> IS THIS THE BEST SOLUTION?
>
> TIA,
> Andrew
>
> Sent via Deja.com http://www.deja.com/
> Before you buy.

That's true.
But you can use first a routine which will set the data coordinates to
the plot.
This is done with plot and the keyword /nodata.

regards

Reimar Bauer

--
R.Bauer

Institut fuer Stratosphaerische Chemie (ICG-1)
Forschungszentrum Juelich
email: R.Bauer@fz-juelich.de

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[Message index]

		Re: POLYFILL erases my tick values - solution? By: R.Bauer on Sun, 24 September 2000 23:23
		Re: POLYFILL erases my tick values - solution? By: davidf on Fri, 22 September 2000 00:00
		Re: POLYFILL erases my tick values - solution? By: Liam E. Gumley on Fri, 22 September 2000 00:00
		Re: POLYFILL erases my tick values - solution? By: Craig Markwardt on Fri, 22 September 2000 00:00
		Re: POLYFILL erases my tick values - solution? By: noymer on Fri, 22 September 2000 00:00

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