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    <font face="Arial">Before displaying the shading use the following:<br>
      <br>
      'set csmooth on'</font><br>
    <pre class="moz-signature" cols="72">--

Bill Reilly

(+34) 686-110-748

<a class="moz-txt-link-abbreviated" href="mailto:bill@passageweather.com">bill@passageweather.com</a>
<a class="moz-txt-link-abbreviated" href="http://www.passageweather.com">www.passageweather.com</a>

<a class="moz-txt-link-abbreviated" href="mailto:bill@brwebworks.com">bill@brwebworks.com</a>
<a class="moz-txt-link-abbreviated" href="http://www.brwebworks.com">www.brwebworks.com</a> 

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    <div class="moz-cite-prefix">On 27/12/2017 05:48, Lyndon Mark
      Olaguera wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CA+V+8dWspj8H_M+KBiLshp945kCB8BHAS8DR5x_6A9qQT+521Q@mail.gmail.com">
      <div dir="ltr">Dear GrADS experts,
        <div><br>
        </div>
        <div>I am trying to plot a difference plot.In particular, a
          height-longitude cross section attached in this email. I am
          shading only the significant areas.¬†</div>
        <div><br>
        </div>
        <div>Is there a way to smoothen the shading in the
          plot?Currently, the shading appears like "blocks".</div>
        <div>Here's a part of my script.</div>
        <div><br>
        </div>
        <div>'define sig=maskout(ttest1,ttest1-3.055)'<br>
        </div>
        <div>
          <div>'set lon 40 180'</div>
          <div>'define b=maskout(num,sig)'</div>
          <div>'set lev 1000 100'</div>
          <div>'set lon 40 180'</div>
          <div>'define c=ave(b,lat=0,lat=18)'</div>
        </div>
        <div><br>
        </div>
        <div>
          <div>'set display color white'</div>
          <div>'c'</div>
          <div>'set parea 1.5 10.5 1.5 8'</div>
          <div>'set lon 40 180'</div>
          <div>'set grads off'</div>
          <div>'set grid off'</div>
          <div>'set xlopts 1 5 0.2'</div>
          <div>'set ylopts 1 5 0.2'</div>
          <div>'set xlint 20'</div>
          <div>'set font 1'</div>
        </div>
        <div><br>
        </div>
        <div>
          <div>'set gxout shaded'</div>
          <div>'set lev 1000 100'</div>
          <div>'set y 1'</div>
          <div>'set zlog on'</div>
        </div>
        <div>
          <div><b>'color -8 8 1 -gxout shaded -kind gray-&gt;gray'</b></div>
          <div>'d -c*100'</div>
        </div>
        <div><br>
        </div>
        <div>I'll appreciate any help.</div>
        <div><br>
        </div>
        <div>Sincerely,</div>
        <div><br>
        </div>
        <div><br>
        </div>
        <div>
          <div>
            <div class="gmail_signature">
              <div dir="ltr">
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                    <div>
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                            <div dir="ltr">
                              <div dir="ltr">
                                <div dir="ltr">
                                  <div dir="ltr"><font face="comic sans
                                      ms, sans-serif"><b><u>Lyndon Mark
                                          P. Olaguera</u></b></font>
                                    <div>PhD Student¬†</div>
                                    <div>Laboratory of Climatology</div>
                                    <div>Department of Geography</div>
                                    <div>Faculty of Urban Environmental
                                      Science</div>
                                    <div><span style="font-size:12.8px">Minami-Osawa
                                        Campus</span><br>
                                    </div>
                                    <div>Tokyo Metropolitan University</div>
                                    <div>Hachioji Tokyo, Japan</div>
                                    <div><br>
                                    </div>
                                  </div>
                                </div>
                              </div>
                            </div>
                          </div>
                        </div>
                      </div>
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      <br>
      <pre wrap="">_______________________________________________
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