<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hello,<div class=""><br class=""></div><div class="">My name is Olivier and I’m from France. I use GrADS to make the maps which describe the weather and the migration of the birds.</div><div class=""><br class=""></div><div class="">Could see my map on this site : </div><div class=""><br class=""></div><div class=""><a href="http://www.chasseurdemigrateurs.com/meteo/view/2014/10/19" class="">http://www.chasseurdemigrateurs.com/meteo/view/2014/10/19</a></div><div class=""><br class=""></div><div class="">The wind is important but I don’t have found how to make cute arrows and so I use the streamlines. But I’m not happy.</div><div class=""><br class=""></div><div class="">What I want to make is small arrows when the wind is light and big one filled for example in red when the wind is stronger. </div><div class=""><br class=""></div><div class="">I think it could be possible drawing a rectangle and a triangle at the right place and with the right size… but I’m not aware with this type of manipulation.</div><div class=""><br class=""></div><div class="">If somebody could help me !</div><div class=""><br class=""></div><div class="">Many thanks</div><div class=""><br class=""></div><div class=""><span style="font-family: Georgia; orphans: 2; text-align: -webkit-auto; widows: 2;" class="">Olivier TRECA</span></div><div apple-content-edited="true" class=""><span class="Apple-style-span" style="border-collapse: separate; font-family: Georgia; border-spacing: 0px;"><div class=""><a href="mailto:otreca@me.com" class="">otreca@me.com</a></div><div class=""><br class=""></div></span><br class="Apple-interchange-newline"><span><img height="160" width="200" apple-inline="yes" id="EBC6ED69-3B2D-464F-9196-6A79870F1DE5" apple-width="yes" apple-height="yes" src="cid:7205E93D-74A6-4D61-A6B4-6E7B65568125" class=""></span>
</div>
<br class=""></body></html>