[OSM-dev] Are there a feature rendering rules for Mapnik?

[Dane Springmeyer]

There is also a proposal here [1] for a stroke-border attribute which  
would allow this to be done is one style:

[1] http://trac.mapnik.org/ticket/51

Dane


On Jan 27, 2009, at 3:32 AM, Ed Loach wrote:

> Ivo wrote:
>
> minor-roads
>           minor-roads-casing
> 5 000
> 1 000
> ☡
> ([highway] = 'secondary' or [highway] = 'secondary_link') and not  
> ([tunnel]='yes' or [tunnel]='true')
>           CSS:
>                       stroke: #a37b48 stroke-dasharray: stroke- 
> linecap: round stroke-linejoin: round stroke-width: 17;
>
>
>           minor-roads-fill
> 5 000
> 1 000
> ☡
> ([highway] = 'secondary' or [highway] = 'secondary_link') and not  
> ([tunnel]='yes' or [tunnel]='true')
>           CSS:
>
>                       stroke: #fdbf6f stroke-dasharray: stroke- 
> linecap: round stroke-linejoin: round stroke-width: 14
>
> Where is the difference between "fill" and the "casing"? The  
> conditions are the same, aren't they?
>
> The conditions are the same, but if you look at the Mapnik layer  
> carefully at maximum zoom you will see that secondary roads have  
> very thin lines (the casing) along the sides of the main part (the  
> fill).
>
> Ed (and forgive this horribly formatted reply – can’t work out  
> how to stop Outlook sticking blue lines next to my reply when I want  
> to  reply below the original text)
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