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    Here's a suggestion:<br>
    <br>
    i_save = new(100000,integer)<br>
    j_save = new(100000,integer)<br>
    counter = 0<br>
    <br>
    do i=0,127<br>
    do j=0,364<br>
    if(.not.ismissing(z2(i,j)).and.z2(i,j).lt. 0.0)then<br>
          i_save(counter) = i<br>
          j_save(counter) = j<br>
          counter = counter + 1<br>
    end if<br>
    end do<br>
    end do<br>
    <br>
    add_poly= gsn_add_polymarker(wks,plot,i_save,j_save,polyres)<br>
    draw(plot)<br>
    frame(wks)<br>
    <br>
    <div class="moz-cite-prefix">On 22/02/2016 3:10 PM, Anusha
      sathyanadh wrote:<br>
    </div>
    <blockquote
cite="mid:CAL0pyA-gizsynsY6sQtz76AWSvirWrN7bd9ZFaQ1AScLiERfQg@mail.gmail.com"
      type="cite">
      <div dir="ltr">
        <div>
          <div>Dear Sir,<br>
            (haley_at_nyahnyahspammersnyahnyah)<br>
            <br>
          </div>
          I have seen your reply to the query <em class="">to overcome
            this <br>
            <br>
               warning:TransformPostDraw: tfPolyDrawList element 0 is
            invalid
          </em><br>
          <em class="">&gt; warning:TransformPostDraw: tfPolyDrawList
            element 1 is invalid
          </em><br>
          <em class="">&gt; warning:TransformPostDraw: tfPolyDrawList
            element 2 is invalid
          </em><br>
          <br>
          <br>
          like<br>
          <br>
          <br>
           a = new(3,graphic)
          <br>
             a(0) = gsn_add_polygon(wks,plot,x1,y1,gsres)
          <br>
             a(1) = gsn_add_polyline(wks,plot,x2,y2,gsres)
          <br>
             a(2) = gsn_add_polymarker(wks,plot,x3,y3,gsres)
          <br>
          <br>
        </div>
        but it doesnt work for my script as I have to use loop
        within..Can u help to get out of this trouble?<br>
        <br>
        <br>
        do i=0,127<br>
        do j=0,364<br>
        if(.not.ismissing(z2(i,j)).and.z2(i,j).lt. 0.0)then<br>
        add_poly= gsn_add_polymarker(wks,plot,i,j,polyres)<br>
        <br>
        end if<br>
        draw(plot)<br>
        end do<br>
        end do<br>
        frame(wks)<br clear="all">
        <div>
          <div>
            <div><br>
              -- <br>
              <div class="gmail_signature">
                <div dir="ltr"><b style="color:rgb(0,0,0)"><i><span
                        style="font-family:georgia,serif">ANUSHA
                        SATHYANADH</span><br
                        style="font-family:georgia,serif">
                      <span style="font-family:georgia,serif">Senior
                        Research Fellow</span><br
                        style="font-family:georgia,serif">
                      <span style="font-family:georgia,serif">Deparment
                        of Atmospheric and Space Sciences</span><br
                        style="font-family:georgia,serif">
                      <span style="font-family:georgia,serif">Pune
                        university</span><br>
                    </i></b><br>
                </div>
              </div>
            </div>
          </div>
        </div>
      </div>
      <br>
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      <br>
      <pre wrap="">_______________________________________________
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</pre>
    </blockquote>
    <br>
    <pre class="moz-signature" cols="72">-- 
Dr. Jatin Kala
Lecturer in Atmospheric Science
Murdoch University,Perth, Western Australia
Tel: (+618) 9360 6297
<a class="moz-txt-link-freetext" href="http://www.jatinkala.com/">http://www.jatinkala.com/</a>

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