[mapserver-users] mapfiles layer extent control

[Joe Bussell]

I have a few layers which seem to behave in a manner which I had not
intended.  Specifically, as I decrease the scale (zoom in) polygon
shapes disappear which I expect to be present.

What controls the choice of whether or not to display a particular layer
other than the MAXSCALE and MINSCALE parameters?  A layer definition
follows which shows the erroneous behavior.  Moving from a scale of 8200
to 4100 drops a small pond which would still fit entirely in the image.


LAYER
    NAME    majorWater
    GROUP   defaultLayer
    TYPE    POLYGON
    TILEINDEX td_wa.shp
    STATUS  ON
    LABELITEM "NAME"
    CLASSITEM "NAME"
    MAXSCALE    9000

    CLASS
        COLOR   0 0 255
        OUTLINECOLOR    71 60 139
        SIZE    1
        SYMBOL  0
        LABEL
            ANGLE           AUTO
            ANTIALIAS       TRUE
            BUFFER          2
            COLOR           96 96 96
            FONT            Arial
            FORCE           FALSE
            OFFSET          0 0
            PARTIALS        FALSE
            POSITION        AUTO
            SIZE            14
            TYPE            TRUETYPE
        END
    END
END


Cordially,

Joe Bussell