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Thank you very much for sharing this link, Jennifer!</div>
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After more research and trial-and-erroring, I've been able to get the desired result by calling xcbar as an option within color.gs and setting all the display colors/xcbar before displaying the grib variable - voila!</div>
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I will keep your cmorph_nicam.gs option as a backup though!</div>
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Best,</div>
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<div style="font-size:13px; color:rgb(0,0,0); font-family:Tahoma"><font face="Calibri,Arial,Helvetica,sans-serif"><font face="Calibri,Arial,Helvetica,sans-serif" size="2" color="#006FC9" style=""><span style="font-size:11pt"><b><span style="font-size:14pt">Aaron
Perry</span></b></span></font></font></div>
<div style="color:rgb(0,0,0); font-family:Tahoma"><font face="Calibri,Arial,Helvetica,sans-serif" style=""><font face="Calibri,Arial,Helvetica,sans-serif" size="2" color="#006FC9" style="font-size:13px"><span style="font-size:11pt"><span style="font-size:14pt"></span></span></font><font face="Calibri,Arial,Helvetica,sans-serif" color="#006FC9" style=""><span style="font-size:12pt">Meteorologist<br>
</span><span style="font-size:12pt"></span></font><font face="Calibri,Arial,Helvetica,sans-serif" size="2" color="#006FC9" style="font-size:13px"><span style="font-size:12pt">Class of '16</span></font><font face="Calibri,Arial,Helvetica,sans-serif" size="2" color="#006FC9" style="font-size:13px"><span style="font-size:12pt"><br>
</span></font><font face="Calibri,Arial,Helvetica,sans-serif" size="2" color="#006FC9" style="font-size:13px"><span style="font-size:12pt">Northern Vermont University-Lyndon</span></font></font></div>
<div style="font-size:13px; color:rgb(0,0,0); font-family:Tahoma"><font face="Calibri,Arial,Helvetica,sans-serif"><font face="Calibri,Arial,Helvetica,sans-serif" size="2" color="#006FC9"><span style="font-size:12pt"><span style="font-size:10pt">(formerly </span><span style="font-size:10pt">Lyndon
State College)</span></span></font><font face="Calibri,Arial,Helvetica,sans-serif" size="2" color="#006FC9"><span style="font-size:12pt"><br>
<span style="font-size:12pt"></span><span style="font-size:12pt">Boston, Mass.</span></span></font></font></div>
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</span><a href="https://twitter.com/AaronPerryWx" class="OWAAutoLink"><span style="font-size:12pt">@AaronPerryWx</span></a></span></font><font size="2"><span style="font-size:11pt"><span style="font-size:12pt"><a href="https://twitter.com/arnpry" target="_blank" id="LPNoLP"></a><a href="https://twitter.com/AaronPerryWx" class="OWAAutoLink"></a></span></span></font></font></div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> gradsusr <gradsusr-bounces@gradsusr.org> on behalf of Adams, Jennifer M. (GSFC-610.2)[ADNET SYSTEMS INC] <jennifer.m.adams@nasa.gov><br>
<b>Sent:</b> Tuesday, April 19, 2022 12:32 PM<br>
<b>To:</b> GrADS Users Forum <gradsusr@gradsusr.org><br>
<b>Subject:</b> Re: [gradsusr] [EXTERNAL] Re: Plotting xcbar.gs Even When There is No Valid Data</font>
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<p class="x_MsoNormal">I put an old script I wrote (back in 2009!) here for you to see an example:
<a href="https://nam04.safelinks.protection.outlook.com/?url=ftp%3A%2F%2Fcola.gmu.edu%2Fpub%2Fjma%2Fcmorph_nicam.gs&data=05%7C01%7Caxp09171%40alumni.northernvermont.edu%7C0e14aae8ff844d0a496b08da22224d3b%7Cb17e9703dbdd49fa909c03dfd13086af%7C0%7C0%7C637859828460373340%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000%7C%7C%7C&sdata=VUcc9ZWEfjOEpkxQ5MpxAvb5bo9eF9X6aoHJQ39wHhY%3D&reserved=0" originalsrc="ftp://cola.gmu.edu/pub/jma/cmorph_nicam.gs" shash="YpNyil55ZMMvE/7dW2+kKHxvOGZcbKWeVdp9LrMimg6V8Br/GHU+MsUmI32Y6jAWaUXTRDC82Tf9+ypfnh5wFlz/nP+nIj0IH9Z2l+K7qFsOujrAjcTFB8OPU5Pw3Rt+UVPXBcpWY7iu1C9LsknX377W55GMWf7M2dp2yLsZJT4=">
ftp://cola.gmu.edu/pub/jma/cmorph_nicam.gs</a></p>
<p class="x_MsoNormal">You have to copy/paste the code from xcbar.gs into your script as a function, and then _shdinfo will be shared by main script and the function.
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<p class="x_MsoNormal"><span style="font-size:9.0pt">-- <span style="color:black"><br>
Jennifer Miletta Adams<br>
Senior Scientific Software Developer<br>
Goddard Earth Sciences Data and Information Services Center (GES DISC)</span></span></p>
<p class="x_MsoNormal"><span style="font-size:9.0pt; color:black">NASA/GSFC, Code 610.2</span><span style="font-size:9.0pt">
</span></p>
<p class="x_MsoNormal"><span style="font-size:9.0pt; color:#AFABAB">Building 32, Room S159</span></p>
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<p class="x_MsoNormal"><b><span style="font-size:12.0pt; color:black">From: </span>
</b><span style="font-size:12.0pt; color:black">gradsusr <gradsusr-bounces@gradsusr.org> on behalf of "Perry, Aaron" <axp09171@alumni.northernvermont.edu><br>
<b>Reply-To: </b>GrADS Users Forum <gradsusr@gradsusr.org><br>
<b>Date: </b>Tuesday, April 12, 2022 at 5:33 PM<br>
<b>To: </b>GrADS Users Forum <gradsusr@gradsusr.org><br>
<b>Subject: </b>Re: [gradsusr] [EXTERNAL] Re: Plotting xcbar.gs Even When There is No Valid Data</span></p>
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<p class="x_MsoNormal"> </p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">I've modified (highlighted text) Lines 157 through 189 in xcbar.gs to save the result (a text file called ref_shade_info) of 'q shades' for future use. I'm having trouble figuring out how to
use the _shdinfo variable you had suggested for use outside of xcbar.gs.</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">I've also attached ref_shade_info to this email for reference.</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">My colorbar is</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_MsoNormal"><b><u><span style="font-size:12.0pt; color:black">My Attempt:</span></u></b><span style="font-size:12.0pt; color:black"></span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">*** get shade information ***
</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> if( cnum = -1 )</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">* 'q shades'</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black; background:yellow"> istat = 0</span><span style="font-size:12.0pt; color:black"></span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black; background:yellow"> while (istat != 2)</span><span style="font-size:12.0pt; color:black"></span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black; background:yellow"> data = read('ref_shade_info')</span><span style="font-size:12.0pt; color:black"></span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black; background:yellow"> shdinfo = sublin(data,2)</span><span style="font-size:12.0pt; color:black"></span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black; background:yellow"> say shdinfo</span><span style="font-size:12.0pt; color:black"></span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">* dummy=write('ref_shade_info',shdinfo)</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> if ( subwrd( shdinfo, 1 ) = 'None' )
</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> say 'Error in xcbar.gs: No shading information'</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> return</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> endif</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">* number of colors</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> cnum = subwrd( shdinfo, 5 )</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> if( cnum <= 0 )</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> say 'Error in xcbar.gs: Number of color is zero'</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> return</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> endif</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">* color and (higher) levels</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> i = 1</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> while( i <= cnum )</span></p>
</div>
<div>
<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> rec = sublin( shdinfo, i+1 )</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> col.i = subwrd( rec, 1 )</span></p>
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<div>
<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> hi.i = subwrd( rec, 3 )</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> i = i + 1</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> endwhile</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black; background:yellow"> endwhile</span><span style="font-size:12.0pt; color:black"></span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> endif</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
</div>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">Am I on the right track?</span></p>
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<p class="x_MsoNormal" style="background:white"><span style="font-size:10.0pt; font-family:"Tahoma",sans-serif; color:black"> </span></p>
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<p class="x_MsoNormal" style="background:white"><b><span style="font-size:14.0pt; color:#006FC9">Aaron Perry</span></b><span style="font-size:10.0pt; font-family:"Tahoma",sans-serif; color:black"></span></p>
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<p class="x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:#006FC9">Meteorologist<br>
Class of '16<br>
Northern Vermont University-Lyndon</span><span style="font-family:"Tahoma",sans-serif; color:black"></span></p>
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<p class="x_MsoNormal" style="background:white"><span style="font-size:10.0pt; color:#006FC9">(formerly Lyndon State College)</span><span style="font-size:12.0pt; color:#006FC9"><br>
Boston, Mass.</span><span style="font-size:10.0pt; font-family:"Tahoma",sans-serif; color:black"></span></p>
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<p class="x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:#006FC9">Twitter:
<a href="https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftwitter.com%2FAaronPerryWx&data=05%7C01%7Caxp09171%40alumni.northernvermont.edu%7C0e14aae8ff844d0a496b08da22224d3b%7Cb17e9703dbdd49fa909c03dfd13086af%7C0%7C0%7C637859828460373340%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000%7C%7C%7C&sdata=3ejMYuEFyTHAL2w5JGOxGVhSCfA85a%2FXhLywQGCTWQE%3D&reserved=0" originalsrc="https://twitter.com/AaronPerryWx" shash="sTV2hOP2kDWXioU2WFyJsAmwkQSWgLd/wQb9Mi7vTpMXxY6DtqWTBH+M6zZLywX4bslyk2IhjEFP7jmpqd2IoCJNvri5z4Fg7R5QT3rVC1Ew9NXuSlrTaOaDeGwlNY3bFqsvD/fMxtdGgveDYkG59BN8Tx2xHCInm9Mz8iZzbS4=">
@AaronPerryWx</a></span><span style="font-size:10.0pt; font-family:"Tahoma",sans-serif; color:black"></span></p>
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<p class="x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:#006FC9">Email: </span><span style="font-size:12.0pt; color:black"><a href="mailto:axp09171@vsc.edu" title="axp09171@vsc.edu">axp09171@vsc.edu</a></span><span style="font-size:10.0pt; font-family:"Tahoma",sans-serif; color:black"></span></p>
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<p class="x_MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> gradsusr <gradsusr-bounces@gradsusr.org> on behalf of Perry, Aaron <axp09171@alumni.northernvermont.edu><br>
<b>Sent:</b> Tuesday, April 12, 2022 9:08 AM<br>
<b>To:</b> GrADS Users Forum <gradsusr@gradsusr.org><br>
<b>Subject:</b> Re: [gradsusr] [EXTERNAL] Re: Plotting xcbar.gs Even When There is No Valid Data</span>
</p>
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<p class="x_MsoNormal"> </p>
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<h4 style="background:white"><span style="color:red">This message is from an external sender. Please be careful when clicking on links and attachments.</span></h4>
<p class="x_MsoNormal" style="margin-bottom:12.0pt"> </p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">Ok, thank you for that clarification!</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black">I will give the process a try and update back later today.</span></p>
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<p class="x_MsoNormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_MsoNormal" style="background:white"><b><span style="font-size:14.0pt; color:#006FC9">Aaron Perry</span></b><span style="font-size:10.0pt; font-family:"Tahoma",sans-serif; color:black"></span></p>
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<div>
<p class="x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:#006FC9">Meteorologist<br>
Class of '16<br>
Northern Vermont University-Lyndon</span><span style="font-family:"Tahoma",sans-serif; color:black"></span></p>
</div>
<div>
<p class="x_MsoNormal" style="background:white"><span style="font-size:10.0pt; color:#006FC9">(formerly Lyndon State College)</span><span style="font-size:12.0pt; color:#006FC9"><br>
Boston, Mass.</span><span style="font-size:10.0pt; font-family:"Tahoma",sans-serif; color:black"></span></p>
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<p class="x_MsoNormal" style="background:white"><span style="font-size:12.0pt; color:#006FC9">Twitter:
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<p class="x_MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> gradsusr <gradsusr-bounces@gradsusr.org> on behalf of Adams, Jennifer M. (GSFC-610.2)[ADNET SYSTEMS INC] <jennifer.m.adams@nasa.gov><br>
<b>Sent:</b> Tuesday, April 12, 2022 8:49 AM<br>
<b>To:</b> GrADS Users Forum <gradsusr@gradsusr.org><br>
<b>Subject:</b> Re: [gradsusr] [EXTERNAL] Re: Plotting xcbar.gs Even When There is No Valid Data</span>
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<p class="x_xxmsonormal">Yes, but you also need to use a modified version of xcbar.gs that uses your saved shade information instead of calling ‘q shades’ again.
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<p class="x_xxmsonormal"> </p>
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<p class="x_xxmsonormal"><span style="font-size:9.0pt">-- <span style="color:black"><br>
Jennifer Miletta Adams<br>
Senior Scientific Software Developer<br>
Goddard Earth Sciences Data and Information Services Center (GES DISC)</span></span></p>
<p class="x_xxmsonormal"><span style="font-size:9.0pt; color:black">NASA/GSFC, Code 610.2</span><span style="font-size:9.0pt">
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<p class="x_xxmsonormal"><span style="font-size:9.0pt; color:#AFABAB">Building 32, Room S159</span></p>
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<p class="x_xxmsonormal"><b><span style="font-size:12.0pt; color:black">From: </span>
</b><span style="font-size:12.0pt; color:black">gradsusr <gradsusr-bounces@gradsusr.org> on behalf of "Perry, Aaron" <axp09171@alumni.northernvermont.edu><br>
<b>Reply-To: </b>GrADS Users Forum <gradsusr@gradsusr.org><br>
<b>Date: </b>Tuesday, April 12, 2022 at 8:45 AM<br>
<b>To: </b>GrADS Users Forum <gradsusr@gradsusr.org><br>
<b>Subject: </b>[EXTERNAL] Re: [gradsusr] Plotting xcbar.gs Even When There is No Valid Data</span></p>
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<p class="x_xxmsonormal"><span style="font-size:12.0pt; color:black">Thank you very much for the quick reply, Jennifer!</span></p>
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<p class="x_xxmsonormal"><span style="font-size:12.0pt; color:black">So to reiterate, I need to save the 'q shades' output from a forecast hour with valid data and then use that same output for a forecast hour that has no data, (instead of running 'q shades'
again on the forecast hour with no data) therefore preserving the desired colorbar on the plot.</span></p>
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<p class="x_xxmsonormal" style="background:white"><b><span style="font-size:14.0pt; color:#006FC9">Aaron Perry</span></b></p>
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<p class="x_xxmsonormal" style="background:white"><span style="font-size:12.0pt; color:#006FC9">Meteorologist<br>
Class of '16<br>
Northern Vermont University-Lyndon</span></p>
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<p class="x_xxmsonormal" style="background:white"><span style="font-size:10.0pt; color:#006FC9">(formerly Lyndon State College)</span><span style="font-size:12.0pt; color:#006FC9"><br>
Boston, Mass.</span></p>
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@AaronPerryWx</a></span></p>
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<p class="x_xxmsonormal" style="background:white"><span style="font-size:12.0pt; color:#006FC9">Email: </span><span style="font-size:12.0pt; color:black"><a href="mailto:axp09171@vsc.edu" title="axp09171@vsc.edu">axp09171@vsc.edu</a></span></p>
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<p class="x_xxmsonormal"><b><span style="color:black">From:</span></b><span style="color:black"> gradsusr <gradsusr-bounces@gradsusr.org> on behalf of Jennifer M Adams <jadams21@gmu.edu><br>
<b>Sent:</b> Tuesday, April 12, 2022 7:31 AM<br>
<b>To:</b> (gradsusr@gradsusr.org) <gradsusr@gradsusr.org><br>
<b>Subject:</b> Re: [gradsusr] Plotting xcbar.gs Even When There is No Valid Data</span>
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<p class="x_xxmsonormal"><span style="font-size:12.0pt; color:black">The colorbar scripts generally run 'q shades' and then parse the output in the 'result' variable. I have worked around this by setting up a plot with the contour levels and colors I want,
then saving the output from 'q shades' in a script variable for later use:<br>
'q shades'<br>
_shdinfo = result<br>
<br>
Then I append a modified copy of the colorbar script as a function in my main drawing script that uses _shdinfo instead of running 'q shades' again.
</span></p>
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<p class="x_xxmsonormal"><span style="font-size:12.0pt; color:black">--Jennifer</span></p>
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<p class="x_xxmsonormal"><b><span style="color:black">From:</span></b><span style="color:black"> gradsusr <gradsusr-bounces@gradsusr.org> on behalf of Perry, Aaron <axp09171@alumni.northernvermont.edu><br>
<b>Sent:</b> Tuesday, April 12, 2022 4:29 AM<br>
<b>To:</b> (gradsusr@gradsusr.org) <gradsusr@gradsusr.org><br>
<b>Subject:</b> [gradsusr] Plotting xcbar.gs Even When There is No Valid Data</span>
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<p class="x_xxmsonormal"><span style="font-size:12.0pt; color:black">Good Morning All,</span></p>
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<p class="x_xxmsonormal"><span style="font-size:12.0pt; color:black">I am trying to figure out a way to plot xcbar.gs even when there is no valid data in the grid to plot.</span></p>
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<p class="x_xxmsonormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_xxmsonormal"><span style="font-size:12.0pt; color:black">For instance, there is no GFS precipitation values in a certain domain, say the Northeastern US, for Forecast Hour 12. xcbar.gs says that there is no shading information and therefore, does
not plot a colorbar for that one frame. I want to have that precipitation colorbar plot for every frame regardless of if there is data in the grid or not.</span></p>
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<p class="x_xxmsonormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_xxmsonormal"><span style="font-size:12.0pt; color:black">I've tried going into xcbar.gs to see if there is an override to plot regardless of valid data or not but, there doesn't appear to be.</span></p>
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<p class="x_xxmsonormal"><span style="font-size:12.0pt; color:black"> </span></p>
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<p class="x_xxmsonormal"><span style="font-size:12.0pt; color:black">Any and all suggestions would be greatly appreciated.</span></p>
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<p class="x_xxmsonormal" style="background:white"><b><span style="font-size:14.0pt; color:#006FC9">Aaron Perry</span></b></p>
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<p class="x_xxmsonormal" style="background:white"><span style="font-size:12.0pt; color:#006FC9">Meteorologist<br>
Class of '16<br>
Northern Vermont University-Lyndon</span></p>
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<p class="x_xxmsonormal" style="background:white"><span style="font-size:10.0pt; color:#006FC9">(formerly Lyndon State College)</span><span style="font-size:12.0pt; color:#006FC9"><br>
Boston, Mass.</span></p>
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<p class="x_xxmsonormal" style="background:white"><span style="font-size:12.0pt; color:#006FC9">Twitter:
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<p class="x_xxmsonormal" style="background:white"><span style="font-size:12.0pt; color:#006FC9">Email: </span><span style="font-size:12.0pt; color:black"><a href="mailto:axp09171@vsc.edu" title="axp09171@vsc.edu">axp09171@vsc.edu</a></span></p>
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