<html>
<head>
<style>
.hmmessage P
{
margin:0px;
padding:0px
}
body.hmmessage
{
font-size: 10pt;
font-family:Verdana
}
</style>
</head>
<body class='hmmessage'>
Yes, you have understood my question. I've tried that you have recommended to
my and now I have the next problem, I've tried to do “v.patch”
with the option “copy also attribute table” with my two GRASS
vector maps and I have the error “Number of columns differ”. Do
you know how can I solve this?<div class="ExternalClass" id="MsgContainer">
<br>Xavier</div><br><br>> Date: Thu, 25 Jun 2009 13:00:35 +0300<br>> From: micha@arava.co.il<br>> To: epistacio@hotmail.com<br>> CC: grass-user@lists.osgeo.org<br>> Subject: Re: [GRASS-user] Point attributes to a polygons<br>> <br>> xavier garcia acosta wrote:<br>> <br>> > Hello everybody,<br>> ><br>> ><br>> > I'm working with cadastre information and I've got the next problem. <br>> > I've the polygons that represent the plots of the houses but without <br>> > any attribute. I've also the points with the attributes of the <br>> > previous polygons. That I would like to do is to add the attributes of <br>> > the points to the polygons. Has anybody got any idea how to do it?<br>> ><br>> Are these GRASS vectors? If so, then "polygons" do not have attributes. <br>> An area feature is made of closed boundary lines and the centroid. The <br>> boundary lines can belong to several areas, so attributes that are <br>> attached to the boundary lines do not represent a particular area. The <br>> centroid, on the other hand, will exactly correspond to the area.<br>> <br>> So, if I understand your question, all you have to do is merge the two <br>> vectors (v.patch), then convert the points to centroids (v.type) and <br>> you're done. The points as centroids already hold the attributes.<br>> <br>> <br>> <br>> > Thanks<br>> ><br>> ><br>> > Nuevo Windows Live, un mundo lleno de posibilidades Descu'brelo. <br>> > <http://www.microsoft.com/windows/windowslive/default.aspx><br>> ><br>> > This mail was received via Mail-SeCure System.<br>> > ------------------------------------------------------------------------<br>> ><br>> > _______________________________________________<br>> > grass-user mailing list<br>> > grass-user@lists.osgeo.org<br>> > http://lists.osgeo.org/mailman/listinfo/grass-user<br>> ><br>> > This mail was received via Mail-SeCure System.<br>> ><br>> ><br>> > <br>> <br><br /><hr />Charlas más divertidas con el nuevo <a href='http://download.live.com' target='_new'>Windows Live Messenger</a></body>
</html>