[mapserver-users] Labels colliding with symbols

lars.schylberg at blixtmail.se lars.schylberg at blixtmail.se
Thu Feb 18 07:57:03 PST 2021


Hi,

I have modified your example a little bit. 

I You add REPEATDISTANCE for the text and then a fake label with transparent text above the svg symbol
I think that You get something that is close to what you are looking for.

If You remove the last fake label block You get the old behavior that the text is written above the symbol.

I have inserted the code in your GIST: https://gist.github.com/iljya/b1d58f250be11e8972ea6e5628f84b2a (https://gist.github.com/iljya/b1d58f250be11e8972ea6e5628f84b2a)

I have been experimenting without repeatdistance and I can agree with You that the results were strange.
I thought that the fake label would do the trick, but it didn't

/Lars Schylberg

17 februari 2021 kl. 20:05, "Iljya Kalai" <iljya.kalai at gmail.com (mailto:iljya.kalai at gmail.com?to=%22Iljya%20Kalai%22%20<iljya.kalai at gmail.com>)> skrev:
 Hi Steve,
I've created a minimal example to demonstrate the issue: 
https://gist.github.com/iljya/b1d58f250be11e8972ea6e5628f84b2a (https://gist.github.com/iljya/b1d58f250be11e8972ea6e5628f84b2a) 
Thanks for your help, 
Iljya  
 Em ter., 16 de fev. de 2021 às 20:41, Steve Lime <sdlime at gmail.com (mailto:sdlime at gmail.com)> escreveu:  Hmmm... Point symbols are automatically considered as part of label placement and collision detection. Since they are drawn first, their placement is cached and labels are placed around them. Can you share specifics on your layers and symbols - perhaps a small test case? --Steve 
 On Tue, Feb 16, 2021 at 4:28 PM Iljya Kalai <iljya.kalai at gmail.com (mailto:iljya.kalai at gmail.com)> wrote:  Hi,
On my map, labels sometimes overlap symbols. Is there a way to avoid this, or are only label/label conflicts avoided? I tried both CC and AUTO for LAYER::CLASS::LABEL::POSITION. 
https://i.imgur.com/C9Ir7dA.png (https://i.imgur.com/C9Ir7dA.png) 
Thanks! 
Iljya 
 # Map file extract 
... 
LAYER 
NAME "LINE"
TYPE LINE
CLASS
STYLE
COLOR 0 0 0
WIDTH 1
END
LABEL 
COLOR 150 150 150
TYPE truetype
SIZE 10
ANGLE AUTO
POSITION CC 
TEXT "hello"
END
END
END 
LAYER
NAME "SYMBOLS"
TYPE POINT
...
CLASS
STYLE
SYMBOL "ABC"
END
END 
END 
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