<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content="text/html; charset=us-ascii" http-equiv=Content-Type>
<META name=GENERATOR content="MSHTML 8.00.6001.18702"></HEAD>
<BODY>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=314541217-03032014>If not using the new fancy-dancy transparent colour
stuff ...</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=314541217-03032014></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=314541217-03032014>I just use maskout for this .. eg ..
plotting precip that as a coloured shaded field I was plotting over another
shaded field such as outgoing longwave radiation (stand-in for clouds) using
only grayshades.</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=314541217-03032014></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=314541217-03032014>In your case</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=314541217-03032014></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=314541217-03032014>mymask = var -9</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=314541217-03032014>d maskout(var,mymask)</SPAN></FONT></DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=314541217-03032014></SPAN></FONT> </DIV>
<DIV dir=ltr align=left><FONT color=#0000ff size=2 face=Arial><SPAN
class=314541217-03032014>ron</SPAN></FONT></DIV>
<DIV> </DIV><BR>
<DIV dir=ltr lang=en-us class=OutlookMessageHeader align=left>
<HR tabIndex=-1>
<FONT size=2 face=Tahoma><B>From:</B> gradsusr-bounces@gradsusr.org
[mailto:gradsusr-bounces@gradsusr.org] <B>On Behalf Of </B>Thomas
Robinson<BR><B>Sent:</B> February 28, 2014 7:56 PM<BR><B>To:</B> GrADS Users
Forum<BR><B>Subject:</B> Re: [gradsusr] Shaded plot only for values above a
minmum<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV dir=ltr>Thank you Jeff. I actually have a plot of terrain, and I
would like to plot 'var' on top of that with the terrain in the background.
So I really want to make a shaded plot overlaid on a shaded plot.
Just using a background value won't work for that. It there any way
to just eliminate the lower values?
<DIV class=gmail_extra><BR><BR>
<DIV class=gmail_quote>On Fri, Feb 28, 2014 at 1:13 PM, Jeff Duda <SPAN
dir=ltr><<A href="mailto:jeffduda319@gmail.com"
target=_blank>jeffduda319@gmail.com</A>></SPAN> wrote:<BR>
<BLOCKQUOTE
style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex"
class=gmail_quote>
<DIV dir=ltr>use the ccols command to manually set the color levels. If
you have N contour values, you need N+1 colors, the first one in the list is
the color corresponding to values below the lowest contour. Set that to
0 (background), so that it will appear not to color values below your minimum
contour value. See the <A
href="http://www.iges.org/grads/gadoc/colorcontrol.html"
target=_blank>controlling colors</A> section of the documentation index
for more information.
<DIV><BR>Jeff Duda</DIV></DIV>
<DIV class=gmail_extra><BR><BR>
<DIV class=gmail_quote>
<DIV>
<DIV class=h5>On Fri, Feb 28, 2014 at 4:58 PM, Thomas Robinson <SPAN
dir=ltr><<A href="mailto:ter@hawaii.edu"
target=_blank>ter@hawaii.edu</A>></SPAN> wrote:<BR></DIV></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex"
class=gmail_quote>
<DIV>
<DIV class=h5>
<DIV dir=ltr>Aloha Grads Users,
<DIV><BR></DIV>
<DIV>I am trying to make a shaded plot where values only show up if they are
greater than 9. So I do:</DIV>
<DIV><BR></DIV>
<DIV>set clevs 9 10 11 12 13 14 15</DIV>
<DIV>d val</DIV>
<DIV>cbarn</DIV>
<DIV><BR></DIV>
<DIV>That works great, but it fills in purple (default) for everything below
9 which is most of the plot. Is there a way to turn off coloring in
the areas below 9? </DIV>
<DIV><BR></DIV>
<DIV>Thanks, </DIV>
<DIV>Tom<SPAN><FONT color=#888888><BR clear=all>
<DIV><BR></DIV>-- <BR>
<DIV dir=ltr>Tom Robinson<BR>President - Graduate Student Organization
<BR>Chair - Student Athletic Fee Committee <BR>Graduate Student - Department
of
Meteorology<BR><BR></DIV></FONT></SPAN></DIV></DIV><BR></DIV></DIV>_______________________________________________<BR>gradsusr
mailing list<BR><A href="mailto:gradsusr@gradsusr.org"
target=_blank>gradsusr@gradsusr.org</A><BR><A
href="http://gradsusr.org/mailman/listinfo/gradsusr"
target=_blank>http://gradsusr.org/mailman/listinfo/gradsusr</A><BR><BR></BLOCKQUOTE></DIV><SPAN
class=HOEnZb><FONT color=#888888><BR><BR clear=all>
<DIV><BR></DIV>-- <BR>Jeff Duda<BR>Graduate research assistant<BR>University
of Oklahoma School of Meteorology<BR>Center for Analysis and Prediction of
Storms<BR></FONT></SPAN></DIV><BR>_______________________________________________<BR>gradsusr
mailing list<BR><A
href="mailto:gradsusr@gradsusr.org">gradsusr@gradsusr.org</A><BR><A
href="http://gradsusr.org/mailman/listinfo/gradsusr"
target=_blank>http://gradsusr.org/mailman/listinfo/gradsusr</A><BR><BR></BLOCKQUOTE></DIV><BR><BR
clear=all>
<DIV><BR></DIV>-- <BR>
<DIV dir=ltr>Tom Robinson<BR>President - Graduate Student Organization <BR>Chair
- Student Athletic Fee Committee <BR>Graduate Student - Department of
Meteorology<BR><BR></DIV></DIV></DIV></BODY></HTML>