Minimum Feature Size

[Brock Anderson]

Drew,

If you have some attribute data that indicates the size or importance of 
your feautres (such as 'area'), you could use that to control which 
features are shown at certain scales.

For example:

LAYER
...
CLASS
   #show some features
   EXPRESSION ([area] > 500)
   MINSCALE 500000
   MAXSCALE 750000
   ...
END #CLASS

CLASS
   #show more features
   EXPRESSION ([area] > 100)
   MINSCALE 250000
   MAXSCALE 500000
   ...
END #CLASS

CLASS
   #show all features
   MAXSCALE 250000
   ...
END #CLASS

END #LAYER

Brock

Simpson wrote:

>At certain scales some of my vector features are too small to bother
>rendering, but MS draws a little blob to represent the feature.
>
>Is it possible in the mapfile to limit features to a certain minimum size?
>
>I see LABEL has MINFEATURESIZE, but don't see how to do the same with the
>feature.
>
>Thanks for any help,
>Drew.
>  
>