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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