Thanks Giovanni.<div><br></div><div>I'll wait for further developments.</div><div>Zara<br><div><br></div><div><br><br><div class="gmail_quote">On Mon, Mar 26, 2012 at 9:51 AM, Giovanni Manghi <span dir="ltr"><<a href="mailto:giovanni.manghi@faunalia.pt">giovanni.manghi@faunalia.pt</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Zara,<br>
<br>
I tested your dataset, saving it to epsg 3763 and get the issue when<br>
doing the TIN interpolation (I will file a ticket). IDW works fine here,<br>
as also any method in the "raster -> analysis -> grid" tool.<br>
<br>
cheers<br>
<span class="HOEnZb"><font color="#888888"><br>
<br>
-- Giovanni --<br>
</font></span><div class="HOEnZb"><div class="h5"><br>
<br>
<br>
<br>
On Fri, 2012-03-23 at 16:01 +0000, Zara Teixeira wrote:<br>
> It is in fact the 20790, and I had tried that too.<br>
> But the problem remains if I convert it to another CRS.<br>
><br>
><br>
> thanks anyway.<br>
><br>
> On Fri, Mar 23, 2012 at 3:48 PM, ALT SHN <<a href="mailto:i.geografica@alt-shn.org">i.geografica@alt-shn.org</a>><br>
> wrote:<br>
> It seems to be a CRS problem.<br>
><br>
> First you have to be sure what EPSG code is equivalent to ESRI<br>
> 102164 (I think it's the 20790)<br>
><br>
> Before converting to 3763, make sure the layer assumes the<br>
> correct EPSG code as CRS. Go to Properties --> General and<br>
> then declare 20790 as the correct EPSG, Then Save it as 3763.<br>
><br>
> Hope it helps<br>
><br>
> 2012/3/23 Zara Teixeira <<a href="mailto:zarafani@gmail.com">zarafani@gmail.com</a>><br>
> Hi,<br>
><br>
><br>
> I have this shapefile with points in ESRI: 102164<br>
> Because all my work is in EPSG 3763, I changed the CRS<br>
> to this one.<br>
> The problem is that everytime I try to create a TIN<br>
> with the interpolation plugin, both QGIS 1.9.9 and<br>
> 1.7.4 crash. I have them installed in Windows 7.<br>
> This doesn't happen with the original shapefile, or<br>
> even if I use the IDW algorithm, but happens if I<br>
> transform the shapefile to any other CRS.<br>
><br>
><br>
> P.S. I would prefer to change the CRS before I<br>
> interpolate.<br>
><br>
><br>
> Any idea why?<br>
> Thanks in advance.<br>
><br>
><br>
><br>
><br>
> Zara<br>
><br>
><br>
><br>
><br>
><br>
><br>
><br>
><br>
><br>
><br>
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</div></div></blockquote></div><br></div></div>