I applied that to the raster layer, and it had no effect. The entire background remains yellow.<div><br></div><div>Here's the command: <b>r.null test_fail_heatmap null=0.0</b><br><div><br></div><div>I also re-ran v.kernel and got no change.</div>
<div><br></div><div>Does <a href="http://trac.osgeo.org/grass/ticket/1276">http://trac.osgeo.org/grass/ticket/1276</a> have anything to do with this?</div><div><br></div><div>Aren<br><br><div class="gmail_quote">On Sun, Sep 11, 2011 at 4:27 PM, Markus Neteler <span dir="ltr"><<a href="mailto:neteler@osgeo.org">neteler@osgeo.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div><div></div><div class="h5">On Sun, Sep 11, 2011 at 10:49 PM, Aren Cambre <<a href="mailto:aren@arencambre.com">aren@arencambre.com</a>> wrote:<br>
> I am running v.kernel on a vector layer of points. The points are mostly<br>
> bunched up in small-ish areas, but when I run v.kernel, the entire<br>
> background is yellow.<br>
> Is it possible to make v.kernel use a transparent (clear) background where<br>
> it finds no activity, rather than painting everything yellow first?<br>
<br>
</div></div>I suppose that you got the value 0.000000 in those cells.<br>
This is different from NULL, hence it is not "transparent".<br>
<br>
With r.null you can assign 0.0 to NULL.<br>
<br>
Hope this helps<br>
<font color="#888888">Markus<br>
</font></blockquote></div><br></div></div>