I've got a large map that, for various reasons, wants to have all the layers on by default. Since
it's all the streets in the US, some of them highlighted by size, it takes a long time to draw - in
fact, mapserver often takes too long to respond, such that apache times out.
I'm trying to use the MIN/MAXSCALEDENOM to control display. The examples are not immediately
helpful, since they only use a single value, and don't leave me with a sense of how "min" or "max"
applies.
For example - which of these is correct if I want the layer to only appear when the map scale is
lower than 1:50000 (that is, between 1:1 and 1:50000, or rather, with very small features shown)?
LAYER
NAME "controlled-access-fc5"
TYPE LINE
STATUS DEFAULT
TILEINDEX /maps/NAVTEQ/20092FC14/USstreets.shp
TILEITEM "LOCATION"
CLASS
NAME "Controlled Access FC5"
EXPRESSION (('[FUNC_CLASS]' eq '5') and ('[CONTRACC]' eq 'Y'))
MAXSCALEDENOM 50000
STYLE
SYMBOL 1
SIZE 3
COLOR 0 255 0
END
END
END
or
LAYER
NAME "controlled-access-fc5"
TYPE LINE
STATUS DEFAULT
TILEINDEX /maps/NAVTEQ/20092FC14/USstreets.shp
TILEITEM "LOCATION"
CLASS
NAME "Controlled Access FC5"
EXPRESSION (('[FUNC_CLASS]' eq '5') and ('[CONTRACC]' eq 'Y'))
MINSCALEDENOM 50000
STYLE
SYMBOL 1
SIZE 3
COLOR 0 255 0
END
END
END
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