[Qgis-user] Clipping tool for non-georeferenced data

[Alexia Mondot]

Hello,

I've add to QGIS non georeferenced data. It is added in 0,0, north up, 
south down. So the y is negative.
When I tried to extract a part of my data with the clipper, I get an error :

Error: Computed -srcwin 266 -145 175 -126 has negative width and/or height.

or
Computed -srcwin falls outside raster size of 156x144.


I understand that it is because the coordinate y is negative and the 
tool can't match it with the real coordinate.
Is there a way to clip a non georeferenced data ?

Thanks by advance,
Alexia

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