Could you enter a ticket for the coordinate select problem in Maestro:
http://trac.osgeo.org/mapguide/newticket
(You must login with an OSGeo ID, and select Maestro as the component)

IIRC the layer's coordinate system must be the same as the map's coordinate system. That means that a given point, say (5,3), must be at the same location in both the map coordinate system as well as the layer data. If that holds, you simply have to read out what coordinate system your MapDefinition uses,
and use the same for the coordinate system override.

If they are not value compatible, I don't think it will work with the regular buffer procedures.

Regards, Kenneth Skovhede, GEOGRAF A/S



sergi nistal skrev:
Hi,

I made a map with 'MapGuide Maestro' about some data (the format of the data is shp, not sdf), but when I use the operation 'buffer' it doesn´t create the buffer and a warning appears (Warning: 1 layers were excluded from buffer computation because their coordinate systems are incompatible with the coordinate system of the map, or because they have no coordinate system at all). I can´t open the section of 'Coordinate System' of MapGuide Maestro (a exception appears), I use webstudio to modify the coordinate system but with the three default coordinate systems that appears it occurs the same warning. How can I know the coordinate system of my data?.

Thanks.

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