Hi Julien,
the data are bubbling thru classes until the expression is true, so you may
use simply the syntax:
CLASS
NAME "0 - 200"
EXPRESSION ([ELEVAC]< 200)
...
END
CLASS
NAME "201 - 300"
EXPRESSION ([ELEVAC]< 300)
...
etc
If the data are preclassified to unique values (eg 2,3,4,5), you will get
better performance
CLASSITEM "ELEVAC"
CLASS
NAME "0-200"
EXPRESSION "2"
...
For the best performance use the most frequent dataset values in the first
class.
Stepan Kafka
Hi,
i'm working with fgs-mapserver and php-mapscript.
i was wondering if i'd rather develop the php code using the php class or on
the contrary develop the map file.
For example, i want to display a layer with level line. I could build the class
with php or i could write several class in my map file, someting like:
CLASS
NAME "201-300"
EXPRESSION (([ELEVAC]> 200) and ([ELEVAC]< 301))
STYLE
SIZE 1
COLOR 100 40 0
END
END
what's the best way?
thx for your advice.
julien
