[mapserver-users] PHP mapscript recenter problem

Donatas Malinauskas donatas.malinauskas at lgt.lt
Mon Jan 25 02:51:41 EST 2010


Hi Alan,

Thanks for yours reply! Yes now it's clear pixels are integers... It is 
too bad that this simply function mismatches to me.  Is there other 
recenter function which works with x,y in lonlat? I didn't see something 
like that in mapserver/mapscript documentation...

Good day,
Donatas.

Alan Boudreault wrote:
> Donatas,
>
> The x,y given to the zoomPoint function are in PIXEL, not lonlat. You cannot 
> specify a half pixel. That said, pixel are integers, not double.
>  
> Alan
>
> On January 22, 2010 03:22:30 am Donatas Malinauskas wrote:
>   
>> HGood day,
>>
>> I have some problem. I want to recenter my map exactly to users given
>> georeferenced coordinates. For that purpose I use php mapscript function
>> - zoompoint(ZOOMFACTOR,$myXY, WIDTH, HEIGHT, EXTENT) with ZOOMFACTOR=1.
>> But this function doesn't work correctly. ZoomPoint function centers map
>> to rounded x,y position (then I have myX 235.5px and myY 330.42 it
>> rounds to 235px, 330px) and moves map to incorect center coordinates.
>> What should I do in this situation, please give me some advice, how
>> recenter map with  best precision.
>>
>> Thanks,
>> Donatas.
>> _______________________________________________
>> mapserver-users mailing list
>> mapserver-users at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>>
>>     
>
>   



More information about the mapserver-users mailing list