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: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Adam Feidt
Sent: Friday, February 29, 2008 8:43 AM
To: Fawcett, David; [email protected]
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:[EMAIL PROTECTED]
Sent: Friday, February 29, 2008 8:19 AM
To: Adam Feidt; [email protected]
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: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Adam Feidt
Sent: Friday, February 29, 2008 8:14 AM
To: [email protected]
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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