[mapserver-users] Map seems like it is shifted to the north by a few meters

[Ben Kuek]

Hi Robert,

Thank you for your response. I tried using the settings you recommended 
on both the top level and the
layer object but the map remained the same.

I can now confirm the problem lies in the map source. Even using a well 
known map viewer to compare it to
a reliable source like G00GLE maps, I can see the similar problem.


Cheers,

Ben


Robert Sanson wrote:
> Hi Ben
>  
> This looks like WGS84. You should haev the following in your Map file, 
> top level and/or layer level:
>  
> PROJECTION
>    "init=epsg:4326"
> END
>  
> regards,
>  
> Robert Sanson
>
> >>> Ben Kuek <ben.kuek at abridge.com.au> 28/05/2008 3:44:09 p.m. >>>
>
> Hi,
>
> My understanding of map projections is a bit rusty so I hope anyone can
> point out where I am wrong.
>
> I have a vector map source in shapefiles where it's .prj file has only
> the following definition
>
> GEOGCS["Geographic Coordinate System",DATUM["WGS84",SPHEROID["GRS
> 1980",6378137,298.2572220960423]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433]]
>
> When the map loaded, I can confirm that the map is wrong by it's
> shifting to the north by a few hundred meters.
>
> I can use :
>   OFFSET 0 70
> in the STYLE object but it doesn't seem like the right thing to do.
>
> I am not very sure if the issue lies with projection or the map source
> and if there's a specific projection setting I must use.
>
>
> Regards,
>
> Ben
>
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>
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