Re: [Geotools-gt2-users] How to optimize the rendering?

[<chr...@nv...>]

You can use
http://docs.geotools.org/latest/userguide/library/data/pregeneralized.html

A tutorial using shape files is here
http://docs.geoserver.org/1.7.5/user/tutorials/feature-pregeneralized/feature-pregeneralized_tutorial.html

I would recommend using a spatial database like postgis, using shape  
files has the disadvantage of duplicating all non geometry attributes  
for each level.

Christian


Zitat von Zheng Xudong <do...@gm...>:

> Hi all,
>
>     I use GeoTools 8.0M4 to load a shapefile contains about 10,000+
>  geometries (each is a multiline). The code is just like the demo in
> quickstart. But I found the rendering is a little slow, especially when I
> zoom in/out or drag the map, and even sometimes the rendering couldn't
> completed (leave some blank area).  What can I do to optimize the
> performance of rendering, or the demo is already the best solution? The CPU
> of my PC is Core Duo E6550, the memory is 2G, and the graphics card is ATI
> Radeon HD 2400.
>
>     Thanks and best regards!
>
> --
> Zheng Xudong
> State Key Laboratory of Software Development Environment
> School of Computer Science and Engineer, BeiHang University
>



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