Hi Jukka,
thank you for this example.
Do you know whether this works? :
select st_intersection ( geometry, ${fence:0} ) from "Bauernhof"
The table "Bauernhof" contains a geometry-column called "geometry"
Inside the fence there is a polygon
intersects the geometry from "Bauernhof"
But this does not work.
1. I do not see an error message.
2. What is the 0 after fence: ?
Regards
uwe
Am 10.04.2013 11:40, schrieb Rahkonen Jukka:
> Hi,
>
> They are helper shortcuts for adding a spatial filter into the query. The
> result will be something like
> select * from my_layer
> where geoloc && ${view:4326}
>
> Thus only features intersecting the view, box drawn with the fence tool or
> total extents of the selected features will be selected.
>
> -Jukka Rahkonen-
>
> Uwe Dalluege wrote:
>
>> Hi,
>>
>> I like to describe the
>> function "Run Datastore Query" in my
>> PostGIS tutorial but I can not find
>> a desciption of this.
>> What are the buttons
>> "View, Fence and Selection" good for?
>>
>>
>> Regards
>>
>> Uwe
>>
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> ------------------------------------------------------------------------------
> Precog is a next-generation analytics platform capable of advanced
> analytics on semi-structured data. The platform includes APIs for building
> apps and a phenomenal toolset for data science. Developers can use
> our toolset for easy data analysis & visualization. Get a free account!
> http://www2.precog.com/precogplatform/slashdotnewsletter
> _______________________________________________
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Precog is a next-generation analytics platform capable of advanced
analytics on semi-structured data. The platform includes APIs for building
apps and a phenomenal toolset for data science. Developers can use
our toolset for easy data analysis & visualization. Get a free account!
http://www2.precog.com/precogplatform/slashdotnewsletter
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