php Mapscript $Layer->getExtent returns strange BBOX

Andreas Albarello andreas.albarello at TERRITORIUMONLINE.COM
Tue Sep 11 13:10:39 PDT 2007


Milo van der Linden wrote:
> $newLayer = ms_newLayerObj($map, $map->getLayerByName('original_layer'));
>   $newLayer->set('data', '\'the geom from (select * from myLayer where 
> F_id in (select F_id from anotherLayer where project_id=1)) as lppg 
> USING UNIQUE F_id USING SRID=4326\'');
>   //$newLayer->set('status', MS_ON);
>   echo $newLayer->data;
>   $rectObj = $newLayer->getExtent();
>  
>   var_dump($rectObj);
> 
> The vardump returns:
> { ["_handle_"]=> resource(47) of type (Unknown) ["minx"]=> 
> float(-25000000) ["miny"]=> float(-25000000) ["maxx"]=> float(25000000) 
> ["maxy"]=> float(25000000) }
> 
> But I need coordinates in lat/lon wgs84?

Milo,

the getExtent() call is not implemented for PostGIS layers and therefore 
always returns +/-FLT_MAX, which is +/-25000000.

Best regards,
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Andreas Albarello
Analysis & SW Development

Territorium Online srl/GmbH
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email: andreas.albarello at territoriumonline.com
web:   www.territoriumonline.com
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