[ka-Map-users] position discrepancy

[Paul Spencer]

Hi,

it is most likely an accuracy problem either in the calculations  
(because they are pixel based, some rounding happens) or your data  
(perhaps differing projections?  A datum shift can easily cause  
discrepancies of 200m in some cases)

Cheers

Paul

On 15-Mar-06, at 10:00 AM, Laurent PIERRE wrote:

> Hi,
>
> I 'v just finished to develop a web site with ka_map (0.2) (in my  
> opinion a very good framework to produce appealing web mapping  
> applications ... thanks to developpers) and I figured out that the  
> localisation of objects created on maps have a small dicrepancy  
> with the actual x y given to 'addObj' (about 50 m). Is it a known  
> issue of Ka_map ?
>
> Thanks
>
> Laurent Pierre
> EDF R&D
>
>
> _______________________________________________
> ka-Map-users mailing list
> ka-Map-users at lists.maptools.org
> http://lists.maptools.org/mailman/listinfo/ka-map-users

+-----------------------------------------------------------------+
|Paul Spencer                           pspencer at dmsolutions.ca   |
+-----------------------------------------------------------------+
|Applications & Software Development                              |
|DM Solutions Group Inc                 http://www.dmsolutions.ca/|
+-----------------------------------------------------------------+