Line Labels (multiple Labels) {Scanned}

Siki Zoltan siki at AGT.BME.HU
Tue Nov 22 06:38:26 PST 2005


Hi,

You can add the same shape file to your map file, and you can specify 
different label location (e.g. LL, LR, UL, UR).

LAYER
	NAME "l1"
	DATA "<your_data>
	LABELITEM "from_left"
	TYPE ANNOTATION
	CLASS
		LABEL
			...
			POSITION UL
			ANGLE AUTO
		END
	END
END
LAYER 
	NAME "l2"
	DATA "<your_data>
	LABELITEM "from_right"
	TYPE ANNOTATION
	CLASS
		LABEL
			...
			POSITION LL
			ANGLE AUTO
		END
	END
END	

...


Bye,
Zoltan

On Mon, 21 Nov 2005, Blammo wrote:

> All,
> 
> OK, I thought about this some more . . . .
> 
> Just as a cheat to get something going, what about just stringing two of 
> the labels together, top and bottom of the line, and seperate them by 
> some spaces in the text.   This would essentailly give me what I'm 
> looking for, but it also has one problem,  I need to be able to figure 
> out the line direction.   The address ranges are from-to related to the 
> beginning/end of the lines.   Is there a way to tell which direction a 
> line is drawn?  I believe the AUTO align does something like this 
> doesn't it?
> 
> The output would look something like:
> 
>    LeftMin       LeftMax
> ----------------------------->
>    RightMin     RightMax
> 
> 
>    RightMax     RightMin
> <-----------------------------
>    LeftMax       LeftMin
> 
> bobb
> 
> 
> Stephen Woodbridge wrote:
> 
> > I have asked about this feature in the past. It would be a very nice 
> > feature to have, but it is not available in mapserver yet unless you 
> > want to code it up maporama does it and it looks very nice.
> >
> > http://www.maporama.com/share/
> >
> > I think it would be great if mapserver supported a more abstract label 
> > positioning grammar like:
> >
> > LABEL
> >   LABELITEM <field>
> >   ...
> >   LOCATION
> >     POSITION ...
> >     PERCENT_ALONG <float>
> >     SIDE [LEFT|RIGHT|CENTER|INSIDE|OUTSIDE]
> >     OFFSET [X|Y|NORMAL] <float>
> >   END
> > END
> >
> > Then you could attach multiple label blocks to a layer to generate the 
> > labels you want. Moving LABELITEM into the LABEL block allows each 
> > block too have its on item field.
> >
> > This could also be used to display labels along polygon boundaries 
> > using INSIDE|OUTSIDE for things like administrative boundaries.
> >
> > -Steve
> >
> > Bob Basques wrote:
> >
> >> All,
> >>
> >> I think I saw something like this being asked a few months back, but 
> >> haven't found it in a search.
> >>
> >> I need to be able to label a line at both ends and on both sides.   
> >> Are there some techniques to use in MapServer for this?   I can 
> >> generate the point locations from other software for the labels, but 
> >> the dataset changes quite frequently and I woulds like to pursue an 
> >> automated method if possible.
> >>
> >> What I'm trying to label is a Street Centerline with the address 
> >> ranges on both ends, we also have a right/left distinction at both 
> >> ends so that I would need a label on each side of the line as well.  
> >> Needless to say the labels would need to align with the line segment 
> >> as well rotationally
> >>
> >> Even a search keyword would help if someone knows of something in the 
> >> archives.
> >>
> >> Thanks for any info.
> >>
> >> bobb
> >>
> >
> >
> 



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