Hi Galebonwe:<br>Please, see this example about how to define your own gray scale.<br><br><a href="http://cookbooks.opengrads.org/index.php?title=Recipe-026:_Using_World_Coordinates_to_Annotate_your_Plots">http://cookbooks.opengrads.org/index.php?title=Recipe-026:_Using_World_Coordinates_to_Annotate_your_Plots</a><br>
<br>Cheers,<br>Hernán<br><br><br><div class="gmail_quote">2010/4/1 Galebonwe Ramaphane <span dir="ltr"><<a href="mailto:GRamaphane@gov.bw">GRamaphane@gov.bw</a>></span><br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Graduser,<br>
<br>
I'm attempting to display cloud cover in grayscale. I would like<br>
something like ;<br>
<br>
25% cover ----- very light gray<br>
50% cover ----- light gray<br>
75% cover ----gray<br>
100% cover ----dark gray/black<br>
<br>
I have also attempted to define my RGB gray scale( see attached script).<br>
However I seem to get only one color on the plot( see attached picture)<br>
<br>
I defined my clevs and ccols thus;<br>
<br>
rgb_gray1<br>
set gxout shaded<br>
* set cmin 15<br>
set clevs 25 50 75 100<br>
set ccols 0 23 24 28 30<br>
display clcm<br>
cbarn<br>
<br>
Any suggestions will be welcome.<br>
<font color="#888888"><br>
Galebonwe Ramaphane<br>
Department of Meteorological Services<br>
P.O. BOX 10100<br>
Gaborone<br>
Botswana<br>
Tel: +267 3612200<br>
<br>
<br>
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<br></blockquote></div><br>