<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Sep 27, 2014 at 8:28 AM, teeschke <span dir="ltr"><<a href="mailto:daniel.teske@web.de" target="_blank">daniel.teske@web.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi list,<br>
<br>
I am totally excitedabout the vector visualizations of Wind Map* and Earth<br>
Wind**. So I'm now trying to extract this kind of vector from meteorological<br>
grib files, which has set the wind parameters angle and speed per cell.<br>
<br></blockquote><div>Hi, I was also excited.<br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
I tried to work with r.to.vect, but this seems to be not the best starting<br>
point, because the stream vectors must be calculated before. Right? Could<br>
you please give me any hints to extract some kind of wind stream vectors?<br>
<br></blockquote><div>So, I have created:<br><br><a href="https://github.com/ncsu-osgeorel/comet-like-visualization">https://github.com/ncsu-osgeorel/comet-like-visualization</a><br><br></div><div>the result can be seen here:<br><br><a href="http://geospatial.ncsu.edu/osgeorel/foss4g-2014-spatio-temporal-visualization.html">http://geospatial.ncsu.edu/osgeorel/foss4g-2014-spatio-temporal-visualization.html</a><br><br></div><div>Let me know what do you think. There is not much documentation but it should be pretty clear, although it is quite sensitive to sizes, so you must be careful in setting region right.<br><br></div><div>Vaclav<br></div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
Thank you very much and best regards,<br>
teeschke<br>
<br>
*<a href="http://hint.fm/wind/" target="_blank">http://hint.fm/wind/</a><br>
** <a href="http://earth.nullschool.net/" target="_blank">http://earth.nullschool.net/</a><br>
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