Bug in CLASS expression in 4.2.4 ??

[Jan Hartmann]

Can others comfirm this very weird problem with CLASS expressions in
4.2.4? I'm using the following elementary MapFile:

layer
    name municipalities
    type polygon
    status default
    data "municipalities.shp"
    class
       expression([GEM_NUM] < 500)
       color 255 0 0
       outlinecolor 0 0 0
    end
    class
       expression([GEM_NUM] >= 500)
       color  0 255  0
       outlinecolor 0 0 0
    end
end

It should show Dutch municipalities with administrative numbers
(variable GEM_NUM) below 500 in red and above in green. It works in
4.2.3, but not in 4.2.4 (see attached gifs). In 4.2.4 everything gets
assigned to the first class, whatever the expression. However, simple
expressions, with a CLASSITEM and a string or a regex, are correct in
both versions. I can't imagine that this has gone unnoticed, but I can't
imagine either what I could have done wrong. It is an extremely simple
MapFile. I had the same problem with a much more complex PostGIS case,
so I first thought it was the PostGIS connector, but it is the same for
a simple shapefile. Any ideas?

Jan


Jan Hartmann
Department of Geography
University of Amsterdam
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