[mapserver-users] Color palette for road-like layers

[Paul Spencer]

Adrian,

that is a fairly simple trick, you need to draw roads twice to do it.   
You can do that with two separate layers or two STYLE objects within a  
class depending on what effect you want to achieve.

In both cases, you just draw the road 2 pixels wider in your 'outline'  
color (called a casement).  For instance, assuming you are using two  
STYLE objects:

LAYER
   NAME "Major Roads"
   TYPE LINE
   DATA myroads
   CLASS
     NAME "Major Roads"
     STYLE #Casement style
         SIZE 9
         COLOR 192 192 192
         SYMBOL "circle"
     END
     STYLE #Center style
         SIZE 7
         COLOR 255 255 255
         SYMBOL "circle"
     END
   END
END

You would use two separate layers to draw the casement and center  
style if you had several layers and/or classes of roads that you  
wanted to 'merge' the casements - in your google screenshoot, you  
should notice that the grey casement on Hollywood St merges with the  
casement on W 8th St and there is no grey line between the two center  
colors, this would be how to achieve a similar effect in MapServer.

Cheers

Paul

On 6-Jan-09, at 3:51 AM, Adrian Popa wrote:

> Yes Bob, I like the roads. :)
> Can you show me how you are able to draw contours around your roads?
>
> Thanks
>
>
> Bob Basques wrote:
>>
>> Adrian,
>>
>> Would the lines used for this map work for you?
>>
>> https://gis.ci.stpaul.mn.us/gis/gismo_public/html/
>>
>> Looks like the original Mapfile link is broken though, I'll need to  
>> fix that in the morning.
>>
>> bobb
>>
>>
>>
>
>
> -- 
> Adrian Popa
>
> Network Engineer
> Romtelecom S.A.
> Divizia Centrul National de Operare Retea
> Departament Transport IP & Metro
> Compartiment IP Core
>
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__________________________________________

    Paul Spencer
    Chief Technology Officer
    DM Solutions Group Inc
    http://research.dmsolutions.ca/