<div dir="ltr">There is a resource called cnFillBackgroundColor, which is set by default to "transparent". This allows you to control whether a fill pattern completely covers what is beneath it. Check out <a href="http://www.ncl.ucar.edu/Applications/coneff.shtml">http://www.ncl.ucar.edu/Applications/coneff.shtml</a> coneff_14.ncl for an example of pattern fill over solid fill.<div>
-dave</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Aug 6, 2014 at 12:00 PM, WU, Cheuk Kuen <span dir="ltr"><<a href="mailto:hkson@connect.hku.hk" target="_blank">hkson@connect.hku.hk</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><div><div><div>Hi,<br><br></div>I also have another question for my MJO study plots apart from the panel plots. But it is quite different and I choose to start a new post. <br>
<br></div>I have done the t-test for my data to test their significance. I have also calculated the critical t-values for each grid by using cdft_t function. For vectors, I plot all the arrows in gray colour first. Then I do another plot in which all insignificant data are set to missing values (by using ndtooned, idx and onedtond). The arrows for significant data are black in colour. The two plots are then overlaid. It is done well for the vector plot.<br>
<br></div>For contour plot, like geopotential height data, I first plot all data with cnFillOn=True and cnLinesOn=False. Again I do another plot and the insignificant data become missing. The significant data are plotted with both cnFillOn and cnLinesOn set to true, and the two plots are overlaid, so that the significant data can be emphasized with the contour lines. However, I realised that this should not be a good method because some data WITHIN the contour fill may be significant but cannot be emphasized. <br>
<br>I think of using cnFillPattern. For example, I want there will be dots over all the significant data. I have not yet tried this, but I wonder that whether the fill patterns have background colour (e.g. white)? If yes, they will cover my original cnFill after overlaying the plots. I want the fill colours of all data can still be seen with dots over the significant data. Is this method possible? Or do you have even better suggestions? Thank you!<br>
<br></div>John<br></div>
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