<div dir="ltr"><div class="gmail_default" style="font-size:small">Tao,</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">I was out last week.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">You can contour by region using the "overlay" procedure.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">See the attached script, which contains the URL where you can get the data file in the comments. I first draw the plot using the full data set. I then arbitrarily divide the lat/lon into subregions and draw the data again.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">This is a rectilinear grid, so it's easy to divide the data into subregions. If you have curvilinear data, then you will need to subset the 2D lat/lon data as well as the data itself.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">--Mary</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small"><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Feb 2, 2017 at 11:03 PM, Tao Lu <span dir="ltr"><<a href="mailto:hakufu.asano@gmail.com" target="_blank">hakufu.asano@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Mary,<div><br></div><div>Thank you for your helpful information.</div><div>I will try that.</div><div><br></div><div>On my occasion, i am more interested in how to add some data to contour.</div><div>You know when you make contour plot you have to assign the data to array.</div><div>If the data is too big, the array will be over memory allowed.</div><div>So i want to know if it is possible to divide a single complete contour (e.g. pressure contour of specific time) into several part.</div><div>Just like, "a" in <strong style="color:rgb(0,0,0);font-family:courier;font-size:13.3333px;margin:0px;padding:0px">write_table</strong><span style="color:rgb(0,0,0);font-family:courier;font-size:13.3333px">("list.txt", "a", flist, "%s")</span>, which means add.</div><div>You plot one part , then add other parts of the contour plot.</div><div><br></div><div>Thank you,</div><div>Tao</div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Feb 3, 2017 at 2:50 PM, Mary Haley <span dir="ltr"><<a href="mailto:haley@ucar.edu" target="_blank">haley@ucar.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_default" style="font-size:small">Tao,</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">One of the first things I try with contouring large data is to turn on raster contours by setting:</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">res@cnFillMode = "RasterFill"</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">This can sometimes make a significant difference in speed.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">If this doesn't help, you can add a second resource:</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">res@trGridType = "TriangularMesh"</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">Finally, if you are getting a message:</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default"><div class="gmail_default" style="font-size:small"> fatal:ContourPlotDraw: Workspace reallocation would exceed maximum size</div><div class="gmail_default" style="font-size:small"> 16777216</div><div class="gmail_default" style="font-size:small"> fatal:ContourPlotDraw: draw error</div><div class="gmail_default" style="font-size:small"> fatal:ContourPlotDraw: draw error</div><div class="gmail_default" style="font-size:small"> fatal:PlotManagerDraw: error in plot draw</div><div class="gmail_default" style="font-size:small"> fatal:_NhlPlotManagerDraw: Draw error</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">Then see this URL, which provides some information about things to try.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default"><a href="http://www.ncl.ucar.edu/FAQ/#err_msgs_012" target="_blank">http://www.ncl.ucar.edu/FAQ/#e<wbr>rr_msgs_012</a><br></div><div class="gmail_default"><br></div><div class="gmail_default">--Mary</div><div class="gmail_default"><br></div></div></div><div class="gmail_extra"><br><div class="gmail_quote"><div><div class="m_-8429095527723279786h5">On Thu, Feb 2, 2017 at 6:10 PM, Tao Lu <span dir="ltr"><<a href="mailto:hakufu.asano@gmail.com" target="_blank">hakufu.asano@gmail.com</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="m_-8429095527723279786h5"><div dir="ltr">Dear ncl-talk,<div><br></div><div>I have a large ASCII data (200files, each of them is 2 mb binary).</div><div>The contour plot I want to get need all the files' data.</div><div><br></div><div>What I have done now is to convert binary to the ascii format which is easy to plot.</div><div>Then each binary data will become 140 mb ascii.</div><div>And it takes more time to plot.</div><div><br></div><div>If I have to plot them, with limited memory and fast speed, anyone have any idea?</div><div><br></div><div>Thank you,</div><div>Tao<br clear="all"><div><br></div>-- <br><div class="m_-8429095527723279786m_2799880611240281108m_8993896714899982915gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div style="font-size:12.8000001907349px"><span style="font-size:12.8000001907349px">******************************<wbr>************************</span><br></div><div style="font-size:12.8000001907349px"><span style="font-size:12.8000001907349px">盧 涛 (ル タオ) </span><span style="font-family:arial,helvetica,sans-serif;font-size:small">修士課程2年</span><br style="font-size:12.8000001907349px"><p style="font-size:12.8000001907349px;margin:0px"><font size="2" face="arial, helvetica, sans-serif">〒<span lang="EN-US">112-8551 </span>東京都文京区春日<span lang="EN-US">1-13-27</span></font></p><p style="font-size:12.8000001907349px;margin:0px"><font size="2" face="arial, helvetica, sans-serif">中央大学理工学研究科都市環境学専攻</font></p><p style="font-size:12.8000001907349px;margin:0px"><font size="2" face="arial, helvetica, sans-serif">河川・水文<span lang="EN-US"><span lang="EN-US"><span lang="EN-US">研究</span></span><span lang="EN-US"><span lang="EN-US">室</span></span></span></font><span style="font-family:arial,helvetica,sans-serif;font-size:small">（山田正教授）</span></p></div><div style="font-size:12.8000001907349px"><p style="font-size:12.8000001907349px;margin:0px"><font size="2" face="arial, helvetica, sans-serif"><span lang="EN-US"><br></span></font></p><p style="font-size:12.8000001907349px;margin:0px"><font size="2" face="arial, helvetica, sans-serif"><span lang="EN-US">TEL: 03-3817-3406; </span></font><span style="font-family:arial,helvetica,sans-serif;font-size:small">Phone: 070-2188-7509</span></p>Email1: <a href="mailto:mail%3Amet.yamos@gmail.com" style="color:rgb(17,85,204);font-size:12.8000001907349px" target="_blank">hakufu.asano@gmail.com</a><br style="font-size:12.8000001907349px">Email2: <a href="mailto:mail%3Ayamoto@civil.chuo-u.ac.jp" style="color:rgb(17,85,204);font-size:12.8000001907349px" target="_blank">lutao@civil.chuo-u.ac.<wbr>jp</a><br style="font-size:12.8000001907349px"><span style="font-size:12.8000001907349px">******************************<wbr>*************************</span></div><div style="font-size:12.8000001907349px"><span style="font-size:small;font-family:arial">******************************</span><span style="font-size:small;font-family:arial"><wbr>************************</span><br></div><div><span style="font-size:small;font-family:arial">Tao Lu (M. Eng)</span></div><div><span style="font-family:arial,helvetica,sans-serif;font-size:12.8px">Laboratory of River Engineering and Hydrology,</span><br style="font-family:arial;font-size:small"><span style="font-size:small;font-family:arial">Dept. of Civil and Environmental Engineering,</span><br style="font-family:arial;font-size:small"><span style="font-family:arial,helvetica,sans-serif;font-size:12.8px">Graduate School of Science and Engineering,</span><br style="font-family:arial;font-size:small"><span style="font-size:small;font-family:arial">Chuo University</span><br style="font-family:arial;font-size:small"><span style="font-size:small;font-family:arial"> </span><br style="font-family:arial;font-size:small">1-13-27<span style="font-size:small;font-family:arial">,Kasuga,Bunkyo-ku,Tokyo</span><br style="font-family:arial;font-size:small"><span style="font-size:small;font-family:arial">112-8551, Japan</span><br style="font-family:arial;font-size:small"><span style="font-size:small;font-family:arial">TEL: </span>03-3817-1805<font size="2" face="arial, helvetica, sans-serif"><span lang="EN-US">; </span></font><span style="font-family:arial,helvetica,sans-serif;font-size:small">Phone: 070-2188-7509</span><br style="font-family:arial;font-size:small"><span style="font-size:12.8px">Email1: </span><a href="mailto:mail%3Amet.yamos@gmail.com" style="font-size:12.8px;color:rgb(17,85,204)" target="_blank">hakufu.asano@gmail.com</a><br style="font-size:12.8px"><span style="font-size:12.8px">Email2: </span><a href="mailto:mail%3Ayamoto@civil.chuo-u.ac.jp" style="font-size:12.8px;color:rgb(17,85,204)" target="_blank">lutao@civil.chuo-u.ac.<wbr>jp</a><br style="font-family:arial;font-size:small"><span style="font-size:small;font-family:arial">******************************</span><span style="font-size:small;font-family:arial"><wbr>***********************</span><span style="font-size:12.8px"><br></span></div></div></div></div></div></div></div></div></div></div></div></div></div>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="m_-8429095527723279786gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div style="font-size:12.8000001907349px"><span style="font-size:12.8000001907349px">******************************<wbr>************************</span><br></div><div style="font-size:12.8000001907349px"><span style="font-size:12.8000001907349px">盧 涛 (ル タオ) </span><span style="font-family:arial,helvetica,sans-serif;font-size:small">修士課程2年</span><br style="font-size:12.8000001907349px"><p style="font-size:12.8000001907349px;margin:0px"><font size="2" face="arial, helvetica, sans-serif">〒<span lang="EN-US">112-8551 </span>東京都文京区春日<span lang="EN-US">1-13-27</span></font></p><p style="font-size:12.8000001907349px;margin:0px"><font size="2" face="arial, helvetica, sans-serif">中央大学理工学研究科都市環境学専攻</font></p><p style="font-size:12.8000001907349px;margin:0px"><font size="2" face="arial, helvetica, sans-serif">河川・水文<span lang="EN-US"><span lang="EN-US"><span lang="EN-US">研究</span></span><span lang="EN-US"><span lang="EN-US">室</span></span></span></font><span style="font-family:arial,helvetica,sans-serif;font-size:small">（山田正教授）</span></p></div><div style="font-size:12.8000001907349px"><p style="font-size:12.8000001907349px;margin:0px"><font size="2" face="arial, helvetica, sans-serif"><span lang="EN-US"><br></span></font></p><p style="font-size:12.8000001907349px;margin:0px"><font size="2" face="arial, helvetica, sans-serif"><span lang="EN-US">TEL: 03-3817-3406; </span></font><span style="font-family:arial,helvetica,sans-serif;font-size:small">Phone: 070-2188-7509</span></p>Email1: <a href="mailto:mail%3Amet.yamos@gmail.com" style="color:rgb(17,85,204);font-size:12.8000001907349px" target="_blank">hakufu.asano@gmail.com</a><br style="font-size:12.8000001907349px">Email2: <a href="mailto:mail%3Ayamoto@civil.chuo-u.ac.jp" style="color:rgb(17,85,204);font-size:12.8000001907349px" target="_blank">lutao@civil.chuo-u.ac.<wbr>jp</a><br style="font-size:12.8000001907349px"><span style="font-size:12.8000001907349px">******************************<wbr>*************************</span></div><div style="font-size:12.8000001907349px"><span style="font-size:small;font-family:arial">******************************</span><span style="font-size:small;font-family:arial"><wbr>************************</span><br></div><div><span style="font-size:small;font-family:arial">Tao Lu (M. Eng)</span></div><div><span style="font-family:arial,helvetica,sans-serif;font-size:12.8px">Laboratory of River Engineering and Hydrology,</span><br style="font-family:arial;font-size:small"><span style="font-size:small;font-family:arial">Dept. of Civil and Environmental Engineering,</span><br style="font-family:arial;font-size:small"><span style="font-family:arial,helvetica,sans-serif;font-size:12.8px">Graduate School of Science and Engineering,</span><br style="font-family:arial;font-size:small"><span style="font-size:small;font-family:arial">Chuo University</span><br style="font-family:arial;font-size:small"><span style="font-size:small;font-family:arial"> </span><br style="font-family:arial;font-size:small">1-13-27<span style="font-size:small;font-family:arial">,Kasuga,Bunkyo-ku,Tokyo</span><br style="font-family:arial;font-size:small"><span style="font-size:small;font-family:arial">112-8551, Japan</span><br style="font-family:arial;font-size:small"><span style="font-size:small;font-family:arial">TEL: </span>03-3817-1805<font size="2" face="arial, helvetica, sans-serif"><span lang="EN-US">; </span></font><span style="font-family:arial,helvetica,sans-serif;font-size:small">Phone: 070-2188-7509</span><br style="font-family:arial;font-size:small"><span style="font-size:12.8px">Email1: </span><a href="mailto:mail%3Amet.yamos@gmail.com" style="font-size:12.8px;color:rgb(17,85,204)" target="_blank">hakufu.asano@gmail.com</a><br style="font-size:12.8px"><span style="font-size:12.8px">Email2: </span><a href="mailto:mail%3Ayamoto@civil.chuo-u.ac.jp" style="font-size:12.8px;color:rgb(17,85,204)" target="_blank">lutao@civil.chuo-u.ac.<wbr>jp</a><br style="font-family:arial;font-size:small"><span style="font-size:small;font-family:arial">******************************</span><span style="font-size:small;font-family:arial"><wbr>***********************</span><span style="font-size:12.8px"><br></span></div></div></div></div></div></div></div></div></div></div></div></div></div>
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