[maplab-users] PhpMapScript- setExtent problem - URGENT

[Paul Spencer]

$dx = abs(($rect->maxx - $rect->minx) * 0.1);
$dy = abs(($rect->maxy - $rect->miny) * 0.1);
$rect->setExtent( $minx - $dx, $miny - $dy, $maxx + $dx, $maxy + $dy );

this should work (untested)

Cheers,

Paul

Swapan Mazumdar wrote:

> I am trying to implement zoom to feature. Infact I can easily do that. 
> But the problem is the zoom to (Polygon feature) fits the map extent 
> full and no breathing space is left around it. How can I implement this. 
> Pl. look at the code:
> 
>  
> 
> $shpObject = $layerObj->getShape(-1, 
> intval($http_form_vars["searchIndex"]));       //returns chape object
> 
> $rect = $shpObject->bounds; //returns enclosing rectangle
> 
> $oMap->setExtent($rect->minx, $rect->miny, $rect->maxx, $rect->maxy); // 
> HERE I NEED SOME HELP.
> 
>  
> 
> What calculations are needed to zoom out by 10%. Unfortunately map 
> object’s nZoomFactor doesn’t take values in fractions.
> 
> Your quick pointers will help me a lot, its kindda urgent.
> 
>  
> 
> TIA
> 
> Swapan Mazumdar
> 
> Durban, South Africa
> 
> 
> ------------------------------------------------------------------------
> 
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> Maplab-users at lists.maptools.org
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|Paul Spencer                           pspencer at dmsolutions.ca   |
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|Applications & Software Development                              |
|DM Solutions Group Inc                 http://www.dmsolutions.ca/|
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