<br><br><div class="gmail_quote">On Tue, Jul 10, 2012 at 12:47 PM, Pedro Costa <span dir="ltr"><<a href="mailto:pedrocostaarma@sapo.pt" target="_blank">pedrocostaarma@sapo.pt</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>I'm confused.<br>
My map is in srs 900913 and my tables in postgis are in srs
27492.<br>
<br>
In workshop example the points are converted to srs 4326 why?<br>
Because the funcion findnearestedge needs the data in srs 4326?<br>
If yes, i just need to convert to my table srs (900913) correct?<br></div></div></blockquote><div><br></div><div><br></div><div>Hi Pedro,</div><div><br></div><div>OSM data imported with osm2pgrouting or osm2po are WGS84 (4326), so this is what you have in the database.</div>
<div>OpenLayers uses World Mercator projection (900913 and there are some aliases), so start point and end point in the workshop need to be transformed to 4326.</div><div><br></div><div>In your case you had to replace 4326 with 27492, I guess, assuming that you use OpenLayers (GeoExt) and your dataset.</div>
<div><br></div><div>Daniel</div><div><br></div><div><br></div><div><br></div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div bgcolor="#FFFFFF" text="#000000">
<div>
<br>
<br>
Thanks<br>
<br>
<br>
<br>
<br>
[1] var startpoint = layer.features[0].geometry.clone();<br>
startpoint.transform(epsg_900913, epsg_4326);<br>
var finalpoint = layer.features[1].geometry.clone();<br>
finalpoint.transform(epsg_900913, epsg_4326);<br>
<br>
<br>
<br>
<br>
<br>
<br>
Em 10-07-2012 11:09, Daniel Kastl escreveu:<br>
</div><div><div class="h5">
<blockquote type="cite">
<div>Hi Pedro,</div>
<div><br>
</div>
In which projection are your start and end point?
<div>You need to use ST_transform(<geom>,<srid>) if
the projection is different.</div>
<div>In the workshop the data is in 4326 (WGS84) and so you can
find this SRID in the SQL statement.</div>
<div><br>
</div>
<div>Daniel</div>
<div><br>
</div>
<div><br>
<br>
<div class="gmail_quote">On Tue, Jul 10, 2012 at 11:42 AM, Pedro
Costa <span dir="ltr"><<a href="mailto:pedrocostaarma@sapo.pt" target="_blank">pedrocostaarma@sapo.pt</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>I'm trying to adapt this function (findnearestedge)
[1] to my routing data that are in srs 27492.<br>
<br>
Someone can help me with that? <br>
<br>
<br>
thanks<br>
<br>
<br>
<br>
<br>
<br>
[1]<br>
<br>
$startEdge = findNearestEdge($startPoint);<br>
$endEdge = findNearestEdge($endPoint);<br>
<br>
function findNearestEdge($lonlat) {<br>
<br>
SELECT gid, source, target, the_geom, <br>
distance(the_geom, GeometryFromText(<br>
'POINT(".$lonlat[0]."
".$lonlat[1].")', 4326)) AS dist <br>
FROM ".TABLE." <br>
WHERE the_geom && setsrid(<br>
'BOX3D(".($lonlat[0]-0.1)." <br>
".($lonlat[1]-0.1).", <br>
".($lonlat[0]+0.1)." <br>
".($lonlat[1]+0.1).")'::box3d, 4326) <br>
ORDER BY dist LIMIT 1"<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
Em 10-07-2012 09:33, Daniel Kastl escreveu:<br>
</div>
<blockquote type="cite">Hi Pedro,
<div><br>
</div>
<div>The years before it was always available on OSGeo
server: <a href="http://download.osgeo.org/pgrouting/foss4g2010/" target="_blank">http://download.osgeo.org/pgrouting/foss4g2010/</a></div>
<div> It seems I forgot to place the 2011 workshop there
as well. </div>
<div><br>
</div>
<div>The workshop documentation source is on Github: <a href="https://github.com/pgRouting/workshop" target="_blank">https://github.com/pgRouting/workshop</a></div>
<div>So all you're missing is the sample data. But you
can download any OSM data or even use the sample data
of 2010.</div>
<div><br>
</div>
<div>In case you're using Ubuntu/Debian you can install
last years workshop as a package easily:</div>
<div><a href="https://launchpad.net/%7Egeorepublic/+archive/pgrouting/+packages" target="_blank">https://launchpad.net/~georepublic/+archive/pgrouting/+packages</a></div>
<div>It contains the sample data of Denver as well. Or
you download the tarball [1] and extract it. </div>
<div><br>
</div>
<div>Or, you use OSGeo Live DVD. It contains the
workshop as well:</div>
<div><a href="http://live.osgeo.org/en/quickstart/pgrouting_quickstart.html" target="_blank">http://live.osgeo.org/en/quickstart/pgrouting_quickstart.html</a> (see
"What's next" at the end of the page).</div>
<div><br>
</div>
<div>Hope that helps,</div>
<div>Daniel</div>
<div><br>
</div>
<div>[1] <a href="https://launchpad.net/%7Egeorepublic/+archive/pgrouting/+files/pgrouting%2Bworkshop_0.6.1.orig.tar.gz" target="_blank">https://launchpad.net/~georepublic/+archive/pgrouting/+files/pgrouting%2Bworkshop_0.6.1.orig.tar.gz</a></div>
<div><br>
</div>
<div><br>
<br>
<div class="gmail_quote">On Tue, Jul 10, 2012 at 10:15
AM, Pedro Costa <span dir="ltr"><<a href="mailto:pedrocostaarma@sapo.pt" target="_blank">pedrocostaarma@sapo.pt</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi
guys,<br>
<br>
I'm playing with pgrouting workshop of FOSS4G
2011.<br>
There is any link to download the workshop
material?<br>
<br>
Thanks<br>
<br>
Pedro<br>
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