[mapserver-users] Making labels appear less often on adjacent tiles

[Adrian Popa]

Yes, it's clear now. Thanks for the clarification.

Regards,
Adrian

Thomas Bonfort wrote:
> simply put, when using that parameter the label point is chosen using
> geographical coordinates instead of pixel ones, which means that the
> label is anchored to the ground thus making it appear only once even
> if the polygon spans multiple rendered tiles. hope this is
> sufficiently clear ....
>
> regards,
>
> thomas
>
> www.camptocamp.com
> +33 5 16 57 01 02
>
>
>
> On Wed, Oct 14, 2009 at 14:45, Adrian Popa <adrian_gh.popa at romtelecom.ro> wrote:
>   
>> Thank you, Thomas,
>>
>> That worked beautifully. I am curious, though - how does it work? I mean,
>> the requests are independent and as far as I can see there is no "state" on
>> the server telling him some request are part of a larger request. So, how
>> can it know on which tile to show the label and on which tile not to show
>> the label?
>>
>> Thanks
>>
>> Thomas Bonfort wrote:
>>
>> yes you can do that, by adding a PROCESSING "LABEL_NO_CLIP=ON" to the
>> layers where you don't want repeated labels.
>>
>> regards,
>>
>> thomas
>>
>> www.camptocamp.com
>> +33 5 16 57 01 02
>>
>>
>>
>> On Wed, Oct 14, 2009 at 13:29, Adrian Popa <adrian_gh.popa at romtelecom.ro>
>> wrote:
>>
>>
>> Hello everyone,
>>
>> I'm sure this subject has been discussed before, but I wasn't able to find
>> relevant information so far, so please point me in the right direction
>> please.
>>
>> I have switched to WMS and I am now getting several tiles from my mapserver
>> for one request (this is desired) (actually there are multiple WMS requests
>> for a specific area). I have no label clipping issues, so that's fine also.
>> The thing is, for example, if I zoom over a town and the town is split
>> between several tiles, I will get a label on each tile for the town name.
>> Previously, when I was requesting a large tile from my mapserver
>> (single-tile), this wouldn't happen.
>>
>> I don't want to set the label to "not be visible" below a certain
>> resolution, because that way I wouldn't get any labels below a point.
>>
>> So, my question is: Is it possible to show the label only once per feature,
>> not once per request? My guess is not (because I wouldn't know how to
>> implement it), but I'm curious if there's a solution...
>>
>> Regards,
>> Adrian
>>
>> --
>> --- Adrian Popa
>> NOC Division
>> Network Engineer
>> Divizia Centrul National de Operare Retea
>> Departament Transport IP & Metro
>> Compartiment IP Core & Backbone
>> Phone: +40 21 400 3099
>>
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>>
>>
>>
>>
>>
>>     
>
>   

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