[mapserver-users] Show only one POI on the map

[Tamas Szekeres]

Hi,

If you use MapScript you probably use the object model (by creating
mapObj at first) and assign values to object properties instead of
using the run-time substitution. You should probably use custom
parameters in the request URLs to communicate between the server and
the client side.

Best regards,

Tamas


2008/6/17 Hans Castorp <hanscastorp76 at yahoo.es>:
> Hi Valerio,
>
>
>
> Do you know how to do the same (runtime variable substitution) using
> Mapscript instead of using the url??
>
>
>
> Thanks in advance.
>
>
>
> ________________________________
>
> De: mapserver-users-bounces at lists.osgeo.org
> [mailto:mapserver-users-bounces at lists.osgeo.org] En nombre de valerio
> vianello
> Enviado el: martes, 17 de junio de 2008 9:38
> Para: Tamas Szekeres
> CC: mapserver
> Asunto: Re: [mapserver-users] Show only one POI on the map
>
>
>
> Hi Tomas,
>
> I have found a first solution to my problem.
>
> I used the cookies to store the variable value end I update the cookie value
> only when the variable change.
>
> and then in a javascript I update the value of the post field before submit
> the page.
>
> I'm searching for other solution that don't use cookies...
>
> thanks
> Valerio
>
> --- Mar 17/6/08, valerio vianello <valerio.vianello at yahoo.it> ha scritto:
>
> Da: valerio vianello <valerio.vianello at yahoo.it>
> Oggetto: Re: [mapserver-users] Show only one POI on the map
> A: "Tamas Szekeres" <szekerest at gmail.com>
> Cc: "mapserver" <mapserver-users at lists.osgeo.org>
> Data: Martedì 17 giugno 2008, 08:04
>
> Hi Tomas,
>
> My demo is on my local machine for now...but I will show you part of the map
> file and template file.
>
> this is the layer in which i use the variable the map file is called
> "map1.map"
> # Start of LAYER DEFINITIONS ---------------------------------------------
>   LAYER  #show single poi
>     NAME         floor_1_Show_Pois
>     DATA        POIs
>     STATUS       OFF
>     TYPE         POINT
>     CLASSITEM "country"
>     FILTERITEM 'floor'
>     FILTER 'f.1'
>     LABELITEM "name"
>     TOLERANCE 7
>
>     CLASS
>       NAME       'single_poi'
>       EXPRESSION '%ccountry%'
>       TEMPLATE '../templates/pois.html'
>       STYLE
>       COLOR        0 0 0
>           SYMBOL '../symbols/flag_blue.gif'
>       END
>       LABEL
>         COLOR 0 0 0
>        TYPE BITMAP
>         SIZE MEDIUM
>         ANTIALIAS TRUE
>         POSITION LC
>         FORCE TRUE
>         PARTIALS FALSE
>         BUFFER 4
>       END # end of label
>     END #CLASS
>   END #  layer Pois with label
> #end ---------------------------------------------
>
> when I click on same point in the map using mapserver query mode a new page
> is loaded where there is this link to reload the same map file to show only
> one pois:
>
> <a href="/cgi-bin/mapserv50?map=/var/www/map1.map&layers=floor_1
> floor_1_Show_Pois&ccountry=[country]&imgext=[state]&imgxy=[center]">Show on
> Section </a>
>
> the page is loaded correct but if I try for example to query to poi I have
> non response or if I zoom in or zoom out into the map the poi disappears.
>
> I tried to use the field in the template
> <input type="hidden" neme="ccountry" value="[ccountry]">
> but the value of [ccountry is replaced only the first time with the correct
> value then its value become the string "[ccountry]"...
>
> any suggestions ?
>
> best regards
> Valerio
>
>
>
>
> --- Lun 16/6/08, Tamas Szekeres <szekerest at gmail.com> ha scritto:
>
> Da: Tamas Szekeres <szekerest at gmail.com>
> Oggetto: Re: [mapserver-users] Show only one POI on the map
> A: valerio.vianello at yahoo.it
> Cc: "mapserver" <mapserver-users at lists.osgeo.org>
> Data: Lunedì 16 giugno 2008, 20:03
>
> Valerio,
>
>
>
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>
> I don`t think if anything is preserved across the subsequent requests
>
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> in the cgi mapserver so you might have to apply the substitution on
>
>
>
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> each request.
>
>
>
>
>
> However I`m not sure I could catch the problem exactly, do you have
>
>
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>
> mapfile/URL examples?
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>
>
> Best regards,
>
>
>
>
>
>
>
>
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>
>
> Tamas
>
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> 2008/6/16 valerio vianello <valerio.vianello at yahoo.it>:
>
>
>
>
>
>> Hi Tamas,
>
>
>
>
>
>>
>
>
>
>
>
>> I have a bit issue
>
>
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>  ...
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>> Do you know how lock the variable value until the next changing ?
>
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>>
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>> Now I am able to show only one poi in the map but if I try to query it I
>
>
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>> have no results as response. I have done a lot of test and I think the
>
>
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>
>
>> problem is on variable value. after the page is loaded the value of
>
>
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>> parameter
>
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>> (EXPRESSION '%ccountry%' ) in  the map file lose its past value
>
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> and so the
>
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>> mapserver cgi haven't reference to it anymore.
>
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>>
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>> any suggestion ?
>
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>>
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>> Best regards
>
>
>
>
>
>
>> Valerio.
>
>
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>>
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>> ________________________________
>
>
>
>
>
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>
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>
>
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