[mapserver-users] How does MINDISTANCE work exactly?

[Stephen Woodbridge]

Only ONE label is produced per line object, regardless of how long it
is. MINDISTANCE controls how close another label of the same name on a
different object may be. This is for thinning out label NOT adding
additional labels.

-Steve W

GMail wrote:
> Greetings!
> 
> We are using MapServer 5.2.0, and we've got a long line to render with 
> labels.
> 
> The CLASS goes as:
>     CLASS
>         NAME            "Local Road (2.5K)"
>         MINSCALEDENOM        2500
>         MAXSCALEDENOM        5000
>         EXPRESSION        "3430"
>         STYLE
>             WIDTH        8
>             COLOR        96 96 96
>         END
>         STYLE
>             WIDTH        6
>             COLOR        255 255 255
>         END
>         LABEL
>             ANGLE        FOLLOW
>             PRIORITY    8
>             ENCODING    "UTF-8"
>             COLOR        0 0 0
>             OUTLINECOLOR    255 255 255
>             TYPE        TRUETYPE
>             FONT        arial
>             SIZE        7
>             POSITION    CC
>             PARTIALS    FALSE
>             MINDISTANCE    10
>             BUFFER        1
>             #MINFEATURESIZE AUTO
>         END
>     END
> 
> And we've got the attached image in result.
> 
> However, the image isn't what we were expecting. We expect that there 
> should be 3 to 4 labels along the line, since it's long enough to hold 
> them, and the MINDISTANCE is just 10 pixels. We've tried to change the 
> POSITION to left aligned, but still have the same resulting image.
> 
> What exactly goes wrong here? Or we've just misunderstood something?
> ------------------------------------------------------------------------
> 
> 
> ------------------------------------------------------------------------
> 
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