I think this explains how to do it:
http://gis.stackexchange.com/questions/157472/mapserver-symbol-v-line-style-that-automatically-follows-line-direction
On 2/27/2017 3:54 PM, Björn Danielsson wrote:
Hello and thanks for answering!
Look at the attached png.
I would like to replace the '>' on the line with the little red arrow
symbol at the top.
'Riktning' means direction. That is if the flow of the creek has the
same direction as the 'flow' of the line, or not.
Mapfile:
CLASS
NAME "bäck/dike"
EXPRESSION ("[TYP]"="40")
STYLE
COLOR 0 0 255
WIDTH 3
END
# STYLE
# GEOMTRANSFORM "start"
# SYMBOL "pil3"
# SIZE 10
# ANGLE AUTO
# END
LABEL
EXPRESSION ("[riktning]"="R")
TEXT ">"
COLOR "#ffffff"
OUTLINECOLOR "#0000ff"
SIZE 10
POSITION CC
REPEATDISTANCE 75
ANGLE AUTO2
FORCE TRUE
END
LABEL
EXPRESSION ("[riktning]"="F")
TEXT "<"
COLOR "#ffffff"
OUTLINECOLOR "#0000ff"
SIZE 10
POSITION CC
REPEATDISTANCE 75
ANGLE AUTO2
FORCE TRUE
END
LABEL
TEXT "[text]"
COLOR 0 0 255
OUTLINECOLOR 255 255 255
TYPE TRUETYPE
FONT arial
SIZE 8
ANTIALIAS FALSE
POSITION CC
PARTIALS FALSE
FORCE TRUE
MINDISTANCE 0
BUFFER 0
ANGLE FOLLOW
MAXOVERLAPANGLE 180
OFFSET 7 99
END
END
Björn Danielsson
-----Original Message-----
From: Stephen Woodbridge <[email protected]>
To: [email protected]
Date: Mon, 27 Feb 2017 10:02:32 -0500
Subject: Re: [mapserver-users] Road shields on Mapserver 7
Don't use the geotransform labelpnt, in fact don't label it:
symbol
name "arrow-north"
type truetype
font arrows
character ""
filled true
end
LABEL
...
CLASS
STYLE
COLOR "#444488"
SIZE 8
END
END
CLASS
STYLE
SYMBOL "arrow-north"
GAP -60
ANGLE -90
COLOR "#555555"
SIZE 8
END
END
END
-Steve W
On 2/27/2017 4:04 AM, Björn Danielsson wrote:
> Interesting discussion!
> I have an issue with geotransform 'labelpnt' I so far have failed
to solve.
>
> Consider a line that depicts a creek. Sometimes it is important to
show
> the direction of flow. That is mostly achieved on maps by placing
arrows
> along the creek showing which way the water flows.
>
> I have tried to use LABEL and GEOMTRANSFORM 'labelpoint' with an arrow
> symbol and where the label has no text but has REPEATDISTANCE and
ANGLE.
> Problem is that the symbol is not affected by ANGLE ( neither FOLLOW,
> AUTO or AUTO2 ). Does anybody know how to rotate labelpoint symbols or
> is it not possible?.
>
> Plan B is to use a LABEL with TEXT = ">" which works fine but is not
> that elegant.
>
> Björn D
>
>
> -----Original Message-----
> From: [email protected]
<mailto:lars.schylberg%40blixtmail.se>
> To: [email protected]
<mailto:mapserver-users%40lists.osgeo.org>
> Date: Thu, 23 Feb 2017 21:15:36 +0100
> Subject: Re: [mapserver-users] Road shields on Mapserver 7
>
> Hi,
>
> I more detail in my previous example the offset in the style block
> is because the example is part of a block with three road shields
> stacked.
>
> /Lars S.
>
> One single shield would be like this:
>
> LABEL
> EXPRESSION ('[VAGNR1]' ~ '^[0-9][0-9]$' )
> # Blue two digits
> STYLE
> GEOMTRANSFORM "labelpnt"
> SYMBOL VAGNRBOX
> COLOR 64 168 217
> SIZE 10
> END
> TEXT '[VAGNR1]'
> FONT 'sc'
> TYPE truetype
> POSITION cc
> COLOR 255 255 255
> SIZE 7
> # FORCE: TRUE
> REPEATDISTANCE 150
> MINDISTANCE 300
> PRIORITY 2
> END
>
>
>
>
------------------------------------------------------------------------
> -----Originalmeddelande-----
> Från: [email protected]
<mailto:lars.schylberg%40blixtmail.se>
> <mailto:[email protected]
<mailto:lars.schylberg%40blixtmail.se> >
> Till: [email protected]
<mailto:mapserver-users%40lists.osgeo.org>
> <mailto:[email protected]
<mailto:mapserver-users%40lists.osgeo.org>>
> Datum: 2017-02-23 21:04
> Ämne: Re: [mapserver-users] Road shields on Mapserver 7
>
>
>
> Hi,
>
> This is how I do it in MS7.0. This is just part of the class
> with the first two labels. I have different shield
depending on
> the number of digits.
> I also have different color depending on the color of the
> shield. This is following European road label standard.
>
> /Lars S
>
>
> CLASS
> EXPRESSION ("[VAGNR1]" ~ "^[E0-9]*$" AND
"[VAGNR2]"
> ~ "^[E0-9]*$" AND "[VAGNR3]" ~ "^[E0-9]*$" )
> LABEL
> EXPRESSION ('[VAGNR1]' ~ '^E.$')
> # first shield - green - one digit
> STYLE
> GEOMTRANSFORM "labelpnt"
> SYMBOL VAGNRBOX
> COLOR 115 179 115
> OFFSET 0 -13
> SIZE 10
> END
> TEXT '[VAGNR1]'
> FONT 'sc'
> TYPE truetype
> POSITION CC
> COLOR 255 255 255
> SIZE 7
> OFFSET 0 -13
> REPEATDISTANCE 100
> MINDISTANCE 100
> PRIORITY 9
> FORCE GROUP
> END
> LABEL
> EXPRESSION ('[VAGNR1]' ~ '^E..$')
> # first shield - green - two digits
> STYLE
> GEOMTRANSFORM "labelpnt"
> SYMBOL VAGNRBOX_3TKN
> COLOR 115 179 115
> OFFSET 0 -13
> SIZE 10
> END
> TEXT '[VAGNR1]'
> FONT 'sc'
> TYPE truetype
> POSITION CC
> COLOR 255 255 255
> SIZE 7
> OFFSET 0 -13
> REPEATDISTANCE 100
> MINDISTANCE 100
> PRIORITY 9
> FORCE GROUP
> END
>
>
------------------------------------------------------------------------
>
>
------------------------------------------------------------------------
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>
>
> --
>
>
>
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