Well, If I get things right, you have a raster background, which you want to visit at fixedresolutionlevels. You also want to overlay features on top of this.
Well, I would suggest a simple thing. Use the streaming renderer to render the features and then overlay this on top of the background image. This way you can trick as much as you want with the coverage without impacting features. I would probablyuse two different backbuffers, one where you draw the coverage, one where you draw the results of the streaming renderer for features. This way you can avoid a lot of unneded code for the coverage. I might be more specific, but I don't have much time, sorry. Simone. On Dec 12, 2007 3:44 PM, Diego Fdez. Durán <[EMAIL PROTECTED]> wrote: > Hi all: > > I'll try to describe my project: > > - I'm developing a Swing application that will show a really BIG map > (150k x 100k px). > - I need to navigate through the image and the navigation speed is > critical. > - Even though the user must be allowed to zoom in an out the map, the > maximum resolution will be the default (and what the user will be using > normally). > - The user must be allowed to load layers above the raster (ex. using > shapefiles). > - The raster files (index shapefile + geotiff) are stored in the local > (SCSI) HD. The storage capacity isn't a problem. > - The app must run in Debian GNU/Linux. > > > On mié, 2007-12-12 at 15:11 +0100, Simone Giannecchini wrote: > > Exaclty, that's the point. > > > > I think what diego needs is something different from what the > > StreamingRenderer is supposed to do. This is why I am asking details > > about what he needs to do. > > If he has some specific needs I can drop some ideas that would help > > him to get very high perfomances even with enormous coverage. You have > > seen a few time the experimental viewers I have for coverage with > > enabled pyramids, they are really fast even if the coveerage are big. > > > > Simone. > > > > On Dec 12, 2007 3:04 PM, Andrea Aime <[EMAIL PROTECTED]> wrote: > > > Simone Giannecchini ha scritto: > > > > Ciao Diego (again :-) ), > > > > please, read below.... > > > > > > > > On Dec 12, 2007 1:05 PM, Diego Fdez. Durán <[EMAIL PROTECTED]> wrote: > > > >> I've been reading the StreamingRenderer trying to understand how the > > > >> layer's drawing process works. > > > >> > > > >> When the StreamingRenderer draws the layer[1] it uses the > > > >> Graphics2D.drawImage method. Wouldn't be better to use the > > > >> Graphics2D.drawRenderedImage to apply the transformation (and get > > > >> better > > > >> performance?). > > > > > > > > The images that we use in the streaming renderer are bufferedimages > > > > which are untiled. They are intrinsically in-memory hence using > > > > drawrenderimage would not bring any performance speed up. > > > > drawRenderedImage should be used when drawing tiled images like > > > > PlanarImage subclasses. Of course IMHO :-) > > > > > > Well, in GeoServer we are encoding everything against a BufferedImage > > > (since we are supposed to work in a headless environment) > > > but that is not the case of Diego, he's doing a Swing app as far > > > as I understand, right? > > > > > > Cheers > > > Andrea > > > > > > > > > > -- > > Diego Fdez. Durán <[EMAIL PROTECTED]> | http://www.goedi.net > GPG : 925C 9A21 7A11 3B13 6E43 50DB F579 D119 90D2 66BB > > > ------------------------------------------------------------------------- > SF.Net email is sponsored by: > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services for > just about anything Open Source. > http://sourceforge.net/services/buy/index.php > _______________________________________________ > Geotools-gt2-users mailing list > Geotools-gt2-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users > > -- ------------------------------------------------------- Eng. Simone Giannecchini President /CEO GeoSolutions S.A.S. Via Carignoni 51 55041 Camaiore (LU) Italy phone: +39 0584983027 fax: +39 0584983027 mob: +39 333 8128928 http://www.geo-solutions.it ------------------------------------------------------- ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ Geotools-gt2-users mailing list Geotools-gt2-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
