[postgis-users] PostGIS vs. JTS

[alex bodnaru]

hi,

postgis is performing geometrical operations through a jts equivalent,
geos, or through jts compiled for c++. thus, those operations are
usually fast, even more than jts.

but postgis is also been used to allow those operations on geometries
and other data stored in a relational database, and this is very
powerful, yet complex and i/o intensive work.

so, if you wish to make gis calculations on large data stored in a
database, postgis would definitely be required, but the mere geometry
calculations might be made with jts or geos alone, maybe using a python
or other wrapper.

alex

Baris YILMAZ wrote:
> Hi,
> 
>  
> 
> I'm doing my thesis about a GIS. I use, PostGIS as my Database
> Extension. It works great.
> 
> But as far as I want to make some queries with the Spatial Data in the
> Database, it seems to me, that
> 
> using postgis for these queries, takes longer. Each time, a new
> connection has to be made to the Database. Therefore, I decided to use
> Java Topology Suite for the queries. It seemed to be very faster for
> doing spatial queries. (The queries I execute, are rather simple, like
> find the distance between two points, or, check wheter two geometries
> intersect )
> 
>  
> 
> Can you confirm me, that, using JTS for spatial queries goes faster than
> using PostGIS? Can you please share your experience about this matter?
> 
>  
> 
> Thank you
> 
>  
> 
> Regards
> 
> Baris
> 
>  
> 
>  
> 
>  
> 
>  
> 
> 
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