[mapserver-users] symbology showing line direction

[G. Allegri]

David, I had your opinion too, but Adam seems to have solved it. Adam,
do you confirm that you can display correctly directions?

2008/2/29, Fawcett, David <David.Fawcett at state.mn.us>:
>
>
> Adam,
>
> I am quite sure that MapServer is not going to read the line topology.  To
> display direction, you will need to add an attribute for flow direction and
> populate it.  You would then use an expression for each class that combined
> both the pipe type and the direction.  (Maybe use -1 and 1 for values?)
>
> Something like ('[FUNCTION]' = 'Main' AND [DIRECTION] = -1)
>
> I haven't tested this.  Note the difference in quoting for string fields vs
> number fields.
>
> David.
>
>
> -----Original Message-----
> From: mapserver-users-bounces at lists.osgeo.org
> [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf
> Of Adam Feidt
> Sent: Friday, February 29, 2008 8:43 AM
> To: Fawcett, David; mapserver-users at lists.osgeo.org
> Subject: RE: [mapserver-users] symbology showing line direction
>
>
>
>
> David,
>
>      Below is my Layer definition.  I've tried a truetype symbol and label
> with the ANGLE parameter set to AUTO or FOLLOW.  Neither case pointed out
> actual shapefile line direction.  I'm reading an ESRI shapefile so there is
> no specific column for line direction.
>
>
>
> LAYER
>
>             NAME 'Utilities Sanitary Lines'
>
>             DATA './UtilitiesSanitaryLines.shp'
>
>             TYPE LINE
>
>             STATUS DEFAULT
>
>             CLASSITEM "Function"
>
>             CLASS
>
>                   NAME 'Main'
>
>                   EXPRESSION ""
>
>                   STYLE
>
>                     COLOR 85 255 0
>
>                     SYMBOL "plainline"
>
>                     SIZE 2
>
>                   END
>
>             END # end class
>
>             CLASS
>
>                   NAME 'Low Pressure'
>
>                   EXPRESSION "Low Pressure"
>
>                   STYLE
>
>                     COLOR 255 85 0
>
>                     SYMBOL "plainline"
>
>                     SIZE 2
>
>                   END
>
>             END # end class
>
>             CLASS
>
>                   NAME 'Sub Trunk'
>
>                   EXPRESSION "Sub Trunk"
>
>                   STYLE
>
>                     COLOR 85 255 0
>
>                     SYMBOL "plainline"
>
>                     SIZE 2
>
>                   END
>
>             END # end class
>
>             CLASS
>
>                   NAME 'Trunk'
>
>                   EXPRESSION "Trunk"
>
>                   STYLE
>
>                     COLOR 112 168 0
>
>                     SYMBOL "plainline"
>
>                     SIZE 2
>
>                   END
>
>             END # end class
>
>             CLASS
>
>                   NAME 'Force Main'
>
>                   EXPRESSION "forcemain"
>
>                   STYLE
>
>                     COLOR 255 170 0
>
>                     SYMBOL 'dashed1'
>
>                     SIZE 2
>
>                   END
>
>             END # end class
>
>             CLASS
>
>                   NAME 'Private'
>
>                   EXPRESSION "private"
>
>                   STYLE
>
>                     COLOR 161 33 240
>
>                     SYMBOL 'plainline'
>
>                     SIZE 2
>
>                   END
>
>             END # end class
>
>       END #end layer
>
>
>
>
>
>
> Adam M. Feidt
>
> GIS Coordinator
>
> City of Eden Prairie
>
> 8080 Mitchell Rd
>
> Eden Prairie, MN 55344
>
> phone# 952-949-8443
>
> fax# 952-949-8334
>
>
>
>
>
> From: Fawcett, David [mailto:David.Fawcett at state.mn.us]
> Sent: Friday, February 29, 2008 8:19 AM
> To: Adam Feidt; mapserver-users at lists.osgeo.org
> Subject: RE: [mapserver-users] symbology showing line direction
>
>
>
>
> Adam,
>
>
>
>
>
> What does your layer definition, with the classes look like?
>
>
>
>
>
> Does your data have the direction column properly populated for all records?
>
>
>
>
>
>
> David.
>
>
> -----Original Message-----
> From: mapserver-users-bounces at lists.osgeo.org
> [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf
> Of Adam Feidt
> Sent: Friday, February 29, 2008 8:14 AM
> To: mapserver-users at lists.osgeo.org
> Subject: [mapserver-users] symbology showing line direction
>
>       I'm working in a GeoMoose application and trying to display utility
> lines with the correct line direction via some arrow character or symbol.
> I've had no luck so far.  I've successfully labeled my lines with a truetype
> font character by defining the TEXT ">" parameter in the CLASS object.  I've
> also tried a pixelmap symbol definition using a .gif file.  Both appear to
> work at first, but when you compare it to the actual line direction it isn't
> true in all cases.  Has anybody found a way to accomplish this?  I would
> appreciate if you could send me any examples.
>
>
>
>
>
> Adam M. Feidt
>
> GIS Coordinator
>
> City of Eden Prairie
>
> 8080 Mitchell Rd
>
> Eden Prairie, MN 55344
>
> phone# 952-949-8443
>
> fax# 952-949-8334
>
>
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