Bryce L Nordgren ha scritto: > Arrrgh! > > Resampling a gridded coverage. Is this a service (ala 19119; i.e. > portrayal), or a feature operation concept (ala 19126/N2052)? > > A service is a thing external to a coverage, which operates on a coverage. > If a particular service implementation is optimized for a particular > coverage implementation, it'll have dependencies on the coverage internals. > (It'll use Simone's cool JAI stuff on coverages which it knows to be backed > by J2SE Images, and won't work on other implementations.) > > A feature operation concept is a common method name, parameter list, and > return type. This could well manifest itself as a "ResamplingCoverage" > interface with a "resample(x,y,width,height,crs)" method. Interested > coverage classes could implement this interface. This puts the code for > resampling INSIDE all coverage classes.
I don't think resampling should be a feature operation then. Resampling is an important operation for sure, but so are a ton of others. If I understand properly, service allows for unlimited extension without the need to alter coverage and/or add new interfaces all of the time. It should be something external to coverage in my opinion, so I'd say service too, and yes, must be damn well coupled at the implementation level if you want to get good enough performance to make practical applications viable. Just my 2 cents. Cheers Andrea ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Geotools-devel mailing list Geotools-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geotools-devel
