Hi,
Thanks Jukka, thanks Martin for your hints. I think I will try to solve
some of my problems using postgis-functions like Jukka supposed.
If I get round to I will try to deal with JEQL, too. Sounds promisingly.
Nils
Martin Davis schrieb:
Nils, you might try looking at JEQL to do this.
Hi,
unfortunatily, I have to work with some very large vector-layers at the
moment (more than 800.000 polygons in some shape-files). I have to
select features by attribute, write some selections to new layers, union
features by attribute, etc. (classical GIS-tasks).
That's actually no fun!
Has
]
Lähetetty: 18. elokuuta 2010 15:32
Vastaanottaja: OpenJump develop and use
Aihe: [JPP-Devel] Perfomance-tips for large vector-layers?
Hi,
unfortunatily, I have to work with some very large
vector-layers at the
moment (more than 800.000 polygons in some shape-files). I have to
select features
Nils, you might try looking at JEQL to do this.
http://tsusiatsoftware.net/jeql/main.html
It's based on the same geometry library as OJ (JTS), and is probably a
little more suited to running batch operations on large datafiles.
Feel free to contact me directly for more info.
Martin
Nils Kuhn
