[mapserver-users] Rendering bridges - SOLVED

Thu Feb 4 03:04:50 PST 2010

Hallo list,

> I don't believe this will get you the desired effect. You'll get the 
> lines but you'll also get the line end caps. 
Yes, this was the problem

>  >>thanks, but unfortunately the rendering of bridges are not 
> configured there.
>
> OK, but you would do bridges similar to tunnels. So look at the 
> tunnels and adjust your styling to match what you want.
>
> -Steve W 
You are right! I did so and got the solution:

SYMBOL
    NAME bridge
    TYPE SIMPLE
END

STYLE
  WIDTH 29
  SYMBOL "bridge"
  OUTLINEWIDTH 1
  OUTLINECOLOR "#24277A"
END
  STYLE
  WIDTH 27
  COLOR 255 195 69
END

The trick was SYMBOL SIMPLE, which is not really documented on the 
official docu (http://mapserver.org/mapfile/symbol.html):
>
> TYPE [vector|ellipse|pixmap|truetype|simple|cartoline|hatch]
>
>         * vector: a simple drawing is used to define the shape of the
>           symbol.
>         * ellipse: radius values in the x and y directions define an
>           ellipse.
>         * pixmap: a user supplied GIF image will be used as the symbol.
>         * truetype: TrueType font to use as defined in the FONTSET.
>         * cartoline: allows for different designs of line ends
>           (mitered, rounded, beveled). More information can be found
>           in the /Cartographic Symbols document/
>           <http://mapserver.org/mapfile/symbology/construction.html#sym-construction>.
>         * hatch: produces hatched lines throughout the shape.
>

Thanks!

Tom

Stephen Woodbridge wrote:
> This is just from memory (haven't tried it, but something like this 
> should work wit agg on 5.6
>
> bridge gets a solid black outline
> tunnel gets a dashed black outline
> others get a normal rendition
>
> Try playing with this
>
> LAYER
>   CLASS  # if its a bridge draw it here
>     EXPRESSION ("[bridge]" == "yes")
>     STYLE
>       COLOR "#888888"
>       WIDTH 11
>       OUTLINECOLOR "#000000"
>       OUTLINEWIDTH 3
>     END
>     STYLE
>       COLOR "#DDDDDD"
>       WIDTH 9
>     END
>   END
>   CLASS # else if it is a tunnel draw it here
>     EXPRESSION ("[tunnel]" == "yes")
>     STYLE
>       COLOR "#000000"
>       SYMBOL "dash"
>       WIDTH 17
>     END
>     STYLE
>       COLOR "#888888"
>       WIDTH 11
>     END
>     STYLE
>       COLOR "#DDDDDD"
>       WIDTH 9
>     END
>   END  CLASS # otherwise draw it here
>     STYLE
>     STYLE
>       COLOR "#888888"
>       WIDTH 11
>     END
>     STYLE
>       COLOR "#DDDDDD"
>       WIDTH 9
>     END
>   END
> END
>
>
> -Steve W
>  http://imaptools.com/
>
> Lime, Steve D (DNR) wrote:
>> Good idea. The width of the bridge would have to  be larger than the 
>> road so it sticks out a bit at well…
>>
>>  
>>
>> *From:* mapserver-users-bounces at lists.osgeo.org 
>> [mailto:mapserver-users-bounces at lists.osgeo.org] *On Behalf Of 
>> *Christy Nieman
>> *Sent:* Wednesday, February 03, 2010 12:13 PM
>> *To:* mapserver-users at lists.osgeo.org
>> *Subject:* Re: [mapserver-users] Rendering bridges
>>
>>  
>>
>> Hi,
>>
>> If you draw it in two layers, one with the colour and width you want 
>> for the bridges, and the other with the road line to go on top, you 
>> will essentially cover up the end caps.  The bridges layer would have 
>> to come first in the mapfile, followed by the road line layer.
>>
>> Christy
>> -- 
>> Christy Nieman
>> GIS Technician
>> DM Solutions Group, Inc.
>> Email: cnieman at dmsolutions.ca <mailto:cnieman at dmsolutions.ca>
>> Web: http://dmsolutions.ca
>> Web: http://research.dmsolutions.ca
>>
>> On 02/03/2010 12:52 PM, Lime, Steve D (DNR) wrote:
>>
>> I don't believe this will get you the desired effect. You'll get the 
>> lines but you'll also get the line end caps. That's the real trick, 
>> turning those off. I'm not sure that you can.
>>
>>  
>>
>> Steve
>>
>>  
>>
>> -----Original Message-----
>>
>> From: Fawcett, David (MPCA)
>> Sent: Wednesday, February 03, 2010 10:13 AM
>>
>> To: Lime, Steve D (DNR); tommasodb; mapserver-users at lists.osgeo.org 
>> <mailto:mapserver-users at lists.osgeo.org>
>>
>> Subject: RE: [mapserver-users] Rendering bridges
>>
>>  
>>
>> The feature that he is referencing is just a line segment with an 
>> additional attribute of 'bridge=yes'. 
>>  
>>
>>     * bridge: yes
>>
>>     * highway: trunk
>>
>>     * layer: 1
>>
>>     * name: Manchester Road
>>
>>     * ref: A56
>>
>>  
>>
>> If you just wanted to use the road data and not create an additional 
>> bridges data set, you would likely need to split up the road features 
>> so that the segment that is a bridge is an individual feature. 
>>  
>>
>> I haven't worked with any shapefile extracts from OSM, so the data 
>> may already be like this.  
>>  
>>
>> Assuming that you have a line shapefile that has a column called 
>> 'bridge', you could set up two classes in your roads layer.  The 
>> first one would have an expression like ('[bridge] = 'yes') and the 
>> second class wouldn't have an expression so it would catch the rest 
>> of the lines. 
>>  
>>
>> In the first class, you would stack two lines, the bottom one being 
>> the color of your bridge and wider than the roads line that will go 
>> on top of it.
>>
>>  
>>
>> David.
>>
>>  
>>
>> -----Original Message-----
>>
>> From: mapserver-users-bounces at lists.osgeo.org 
>> <mailto:mapserver-users-bounces at lists.osgeo.org> 
>> [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Lime, 
>> Steve D (DNR)
>>
>> Sent: Wednesday, February 03, 2010 9:50 AM
>>
>> To: tommasodb; mapserver-users at lists.osgeo.org 
>> <mailto:mapserver-users at lists.osgeo.org>
>>
>> Subject: RE: [mapserver-users] Rendering bridges
>>
>>  
>>
>> What feature type are bridges represented with in OpenStreetMap?
>>
>>  
>>
>> -----Original Message-----
>>
>> From: mapserver-users-bounces at lists.osgeo.org 
>> <mailto:mapserver-users-bounces at lists.osgeo.org> 
>> [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of tommasodb
>>
>> Sent: Wednesday, February 03, 2010 6:08 AM
>>
>> To: mapserver-users at lists.osgeo.org 
>> <mailto:mapserver-users at lists.osgeo.org>
>>
>> Subject: [mapserver-users] Rendering bridges
>>
>>  
>>
>> Hallo list,
>>
>>  
>>
>> how can I render road bridges, like in mapnik?
>>
>> (Example:
>> http://www.openstreetmap.org/?lat=53.398022&lon=-2.352222&zoom=18&layers=null 
>> <http://www.openstreetmap.org/?lat=53.398022&lon=-2.352222&zoom=18&layers=null>) 
>>
>>
>> Which symbol can I use?
>>
>>  
>>
>> Greets,
>>
>> Tom
>>
>> ___