<div dir="ltr"><div class="gmail_default" style="font-size:small">Did you try setting tfPolyDrawOrder to "PreDraw" instead of "Draw"?</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">If this continues to be a problem, then instead of using gsnYRefLine, you can try using gsn_add_polyline instead, and just make sure you call it *after* you call gsn_add_polygon.</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><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Feb 11, 2015 at 7:31 AM, Jian Zheng <span dir="ltr"><<a href="mailto:jzheng8606@gmail.com" target="_blank">jzheng8606@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">Hi NCLers,<div><br></div><div>I want to draw some time series with a zero line and some filled boxes for highlight. I use gsnYRefLine to draw the zero line and gsn_add_polygon to draw the boxes. I find the boxes cover the zero line (see attachment). I have set tfPolyDrawOrder as "Draw". Does anyone know how to set the order to make the boxes at the bottom and NOT covering the zero line?</div><div><br></div><div>Thanks in advance.</div><span class="HOEnZb"><font color="#888888"><div>Jian</div></font></span></div>
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