Hi Nicolas.<br>
Thank you.<br>
Very good.<br>
My problem now is that I am receiving the following message:<br>
SELECT Transform(the_geom,32723) FROM tb_my;<br>
ERROR: Input geometry has unknown (-1) SRID<br>
Observing the table geometry_columns, the field srid=-1<br>
Help me.<br>
<br><br><div><span class="gmail_quote">On 7/4/05, <b class="gmail_sendername">Nicolas Ribot</b> <<a href="mailto:nicky666@gmail.com">nicky666@gmail.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
> Hi all.<br>> As it is that I make in the POSTGIS, to change a projection UTM and Datum<br>> SAD 69. Zone 23 (south -), for the projection UTM and Datum WGS84?<br>><br>> Help me.<br>> Thank you.<br>>
<br><br>Hello Carlos.<br>First identify the SRID corresponding to the target projection (UTM 23<br>on Datum WGS84) (32723 for me for postgis 1.0, but check your SRID).<br>Then, use the transform() function to reproject your data in the new
<br>Spatial Reference System:<br><br>select transform(geometry, target_srid) from your_table;<br><br>Nicolas<br></blockquote></div><br><br><br>-- <br>-------------------------------------------------------------------------------
<br>Carlos F. Gonçalves<br>"E
não há salvação em nenhum outro; porque abaixo do céu não existe nenhum
outro nome, dado entre os homens, pelo qual importa que sejamos
salvos"(Atos 4:12)<br>JESUS CRISTO<br><br>Center for Metropolitan Studies (Centro de Estudos da Metropole).<br><br>Know the Metropolitan Region of São Paulo (Conheça a Região Metropolitana<br>de São Paulo).<br><a href="http://www.mapas.centrodametropole.org.br/servidormapas/html/index.html">
http://www.mapas.centrodametropole.org.br/servidormapas/html/index.html</a><br><br>For the good operation of this application, it is necessary to have<br>installed in yours computer the plug-in Adobe SVG Viewer (Para o bom
<br>funcionamento deste aplicativo, é necessário ter instalado em seu<br>computador o plug-in Adobe SVG Viewer).<br><br>Português:<br><a href="http://download.adobe.com/pub/adobe/magic/svgviewer/win/3.x/3.02/pt/SVGView.exe">
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