[ka-Map-users] position discrepancy

Paul Spencer pspencer at dmsolutions.ca
Wed Mar 15 11:31:58 EST 2006


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)



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
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> ka-Map-users at lists.maptools.org
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|Paul Spencer                           pspencer at dmsolutions.ca   |
|Applications & Software Development                              |
|DM Solutions Group Inc                 http://www.dmsolutions.ca/|

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