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 <[email protected]>: > 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 > ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program. ------------------------------------------------------------------------------ Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2 _______________________________________________ GeoTools-GT2-Users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
