[Cartoweb-users] 2 mapserver layers as 1 cartoweb layer: possible?

[Simon ORTET]

Hello Yves,

I tested the both solutions but it's not working.
- I think Cartoweb does not handle the GROUP option.
- The REQUIRES option is more interesting because Cartoweb deals with 
only one layer (and i don't have to use aggregation in layers.ini) and 
everything's happening in Mapserver side, but i can't make it work. It 
seems that only the layer without the REQUIRE option is recognized by 
Cartoweb. When i step out from its scale range, the others layers don't 
show up.
Unfortunately i'm not allowed to spend more time on this functionnality.

Thanks anyway

Simon.


Jacolin Yves a écrit :
> Hi,
>
> You can use the REQUIRES parameter as well, e.g.:
> LAYER
>    NAME   point
>    ....
> END
>  
> LAYER
>    NAME   line
>    STATUS default   # <---------- status default: the layer is ever visible
>    REQUIRES "[point]"  # <------ but only if layer "point" is visible too
>    ....
> END
>
> Reghards,
>
> Y.
> Le Wednesday 08 August 2007 17:34:55 Emmanuel BELO, vous avez écrit :
>   
>> Hi,
>>
>> have you tried the GROUP option in Mapserver?
>>
>> http://mapserver.gis.umn.edu/docs/reference/mapfile/layer
>>
>> Best regards,
>>
>> Emmanuel BELO
>>
>> Simon ORTET wrote:
>>     
>>> Hi,
>>>
>>> I found just a little problem with aggregated layers. When i select the
>>> group, the layer reorder plugin shows all the layers of the group
>>> instead of the layer group name.
>>> I'll try to work on that but any help would be appreciated
>>>
>>> thanks.
>>> Simon
>>>
>>> Alexandre Saunier a écrit :
>>>       
>>>> Hello,
>>>>
>>>> that's a job for layers aggregation. Gather your 2 layers under the
>>>> same  layergroup, declaring the latter "aggregate". Thus it will
>>>> appear as a regular layer that would behave like your 2 mapserver
>>>> layers.
>>>>
>>>> http://cartoweb.org/doc_head/docbook/xhtml/user.layers.html#user.layers.
>>>> tree.layergroups
>>>>
>>>>
>>>> Alexandre
>>>>
>>>> Simon ORTET wrote:
>>>>         
>>>>> Hi
>>>>>
>>>>> Since i have performance issues with my postgis requests on a fat
>>>>> table (despite geometry index), i have created different versions of
>>>>> this table, more or less simplified. One very simplified with a
>>>>> minscale of 500000 and an other detailed with a maxscale of 500000.
>>>>> Now i would like Cartoweb to manage these differents mapserver layers
>>>>> as one cartoweb layer. ie when the user checks the layer name in the
>>>>> tree, i want Cartoweb to choose what layer to use according to the
>>>>> current scale.
>>>>>
>>>>> Is that something possible without diging into layers coreplugin ?
>>>>>
>>>>>
>>>>> Thanks
>>>>> Simon
>>>>>           
>
>
>