<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Easiest way would be to draw 2 separate plots (a positive one and a negative one) and then overlay them. <div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">Alan. </div><div class=""><br class=""></div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On 15 Oct 2015, at 06:55, Nirupam Karmakar <<a href="mailto:nirupam.ju@gmail.com" class="">nirupam.ju@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><div class="gmail_default" style="font-family:garamond,serif">Hi,<br class=""></div><div class="gmail_default" style="font-family:garamond,serif"> Does anyone know how to set the contour lines off for positive values and set dashed lines for negative values in a black and white contour figure?<br clear="all" class=""></div><br class="">-- <br class=""><div class="gmail_signature"><div dir="ltr" class="">Best Regards,<br class=""><br class="">Nirupam Karmakar, PhD Student,<br class="">Centre for Atmospheric and Oceanic Sciences,<br class="">Indian Institute of Science, Bangalore.<br class="">Mobile: +91-9483716347<br class=""></div></div>
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