Marco Cerruti wrote:
Hi all,
I'm a new user of Mapserver. I'm working with MS4W (version 2.2.3) via CGI and I'm having troubles with queries on classified rasters. Queries on non-classified rasters work fine, while in cases of classified ones (already tried several formats: img, bil, tif, png) I get the following error: msDrawShape(): General error message. Unknown layer type. If I comment CLASS definitions the same query shows me correct results (one or more pixels queried, according to the set tolerance, but of course no information on [class] value). I post an extract of my mapfile, with the definition of the raster layer and one of its classes. Maybe I'm doing something wrong with class template (and layer header/footer ...). Hoping to receive a little help ... and sorry for my English!

Marco,

I think this is a bug in mapserver.  That I did not touch all the
parts of the code I should have when implementing raster query support.

Could you boil this down to a minimum test to demonstrate the problem
and submit a bug report?  If I can easily reproduce the problem with
your test data, I'll try and fix it fairly promptly.

Best regards,
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