OK, this is great. I think I learned something new then.
With ANGLE AUTO you can ask GD to draw the whole string at the specified
angle. But there is not equivalent function in GD for ANGLE FOLLOW. The
only way we can do that is one character at a time, changing the
insertion point and angle of each character.
I know Thomas has put a lot of effort into make the AGG render well
integrated with mapserver. It would probably be a good idea to document
this issue and the fact that the outlinecolor is what is causing in a
bug. http://trac.osgeo.org/mapserver/ If you do not have an OSGeo
userid, follow the link to get one first.
Thank you for your patience and Thank you, Tanya, for your excellent
observations on this issue.
-Steve W
Jackey Cheung wrote:
Following TC's suggestion, I've done a test.
With this map file layer:
LAYER
NAME "road"
STATUS DEFAULT
TYPE LINE
UNITS METERS
CONNECTIONTYPE POSTGIS
CONNECTION "host=localhost dbname=ttt user=uuu
password=xxx"
DATA "geom FROM view_road_ar USING
UNIQUE oid USING SRID=4326"
LABELITEM "name"
CLASS
STYLE
WIDTH 16
COLOR 0 0 0
ANTIALIAS TRUE
END
STYLE
WIDTH 15.8
COLOR 255 200 64
ANTIALIAS TRUE
END
LABEL
ANGLE FOLLOW
ENCODING "UTF-8"
COLOR 0 0 0
OUTLINECOLOR 255 255 255
TYPE TRUETYPE
FONT arial
SIZE 24
ANTIALIAS TRUE
POSITION AUTO
PARTIALS FALSE
BUFFER 50
END
END
END
With nothing changed, only change the ANGLE to AUTO and FOLLOW, the
generated images confirms the different processs of ANGLE AUTO & FOLLOW.
Then I've done one more test which uses ANGLE FOLLOW, but with
OUTLINECOLOR removed, then generated image shows "fractured" words.
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