I don't believe this is possible because there is no geometry associated
with the leader line (MapServer cannot tell where the "start" and "end"
is). But I agree that this would be a useful enhancement to the LEADER
object, to include an optional parameter to turn on arrows.
PS. it's great to see that I made available the full mapfile and data
used in the leader documentation, I'll keep doing that!
-jeff
--
Jeff McKenna
MapServer Consulting and Training Services
http://www.gatewaygeomatics.com/
On 2017-03-22 5:01 PM, pe_lord wrote:
There is a way to add arrows at the end of a label leader.
At this time, my leaders are working properly ( Leader
<http://mapserver.gis.umn.edu/mapfile/leader.html> ). At the moment I try
to add another style by geotransform as explained here ( Geotransform
<http://mapserver.org/fr/mapfile/geomtransform.html#end-and-start> )
Here my result
<http://osgeo-org.1560.x6.nabble.com/file/n5313718/leader.png>
Now a part of my mapfile:
LEADER
GRIDSTEP 10 # number of pixels between positions that are tested
MAXDISTANCE 100 # distance in pixels that leader text can be drawn
STYLE
GEOMTRANSFORM "start"
SYMBOL "circle"
COLOR 255 0 0
SIZE 20
END # STYLE
STYLE
COLOR 0 0 0
WIDTH 4
END # STYLE
STYLE
GEOMTRANSFORM "end"
SYMBOL "circle"
COLOR 0 255 0
SIZE 20
END # STYLE
END
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