scale difference in 5.0?

[Daniel Morissette]

Hi Bart,

I have created a ticket about this and will check now:
http://trac.osgeo.org/mapserver/ticket/2300

Daniel


Bart van den Eijnden wrote:
> Hi list,
> 
> I was surprised to get a different scale back in 5.0 than in 4.8. I 
> tracked it down to the following difference in mapscale.c:
> 
> 4.8.4:
> md = width/(resolution*msInchesPerUnit(units, center_y)); /* was 
> (width-1) */
> 
> 5.0:
> md = (width-1)/(resolution*msInchesPerUnit(units, center_y)); /* 
> remember, we use a pixel-center to pixel-center extent, hence the width-1 */
> 
> 
> But PHP/Mapscript's zoomscale function does not seem to deal correctly 
> with this new change:
> 
> from Chameleon's map_navigator:
> 
>         // call the zoomscale function
>         echo $nScale;
>         $this->oSession->oMap->zoomscale($nScale, $oPixelPos,
>           $this->oSession->oMap->width, $this->oSession->oMap->height, 
> $oRect);
>         echo '<br/>'.$this->moMapObject->oMap->scale;
> 
> 
> will output:
> 
> 4278<br/>4287.52783964
> 
> Best regards,
> Bart
> 


-- 
Daniel Morissette
http://www.mapgears.com/