Simone The scaling up was the part I wasn't sure of. It sounds perfect, I'll give it a try.
Thanks, John On 3/16/2010 12:39 PM, Simone Giannecchini wrote: > Ciao John, > the scale operation can be used to answer questions like "I want to > scale my image down/up by xxxx on each direction" > > Quoting JAI Scale javadoc: > > "Specifying a scale factor of greater than 1 increases the size of the > image, specifying a scale factor between 0 and 1 (non-inclusive) > decreases the size of an image. An IllegalArgumentException will be > thrown if the specified scale factors are negative or equal to zero." > > About the warp in geotools, you cannot control it, at least not as it is. > > Ciao, > Simone > ------------------------------------------------------- > Ing. Simone Giannecchini > GeoSolutions S.A.S. > Founder - Software Engineer > Via Carignoni 51 > 55041 Camaiore (LU) > Italy > > phone: +39 0584983027 > fax: +39 0584983027 > mob: +39 333 8128928 > > > http://www.geo-solutions.it > http://geo-solutions.blogspot.com/ > http://www.linkedin.com/in/simonegiannecchini > http://twitter.com/simogeo > > ------------------------------------------------------- > > > > On Tue, Mar 16, 2010 at 7:31 PM, john poole<[email protected]> wrote: > >> I might not understand what the scale operation does, but wouldn't that mean >> less resolution in both the image and the operation? >> >> I'm trying to find something that essentially uses fewer points to execute a >> warp. >> >> >> On 3/16/2010 11:54 AM, Simone Giannecchini wrote: >> >>> Ciao John, >>> if you want to get more speed vs more accuracy you can use one of the >>> scale operations. >>> >>> Check this test to get a feeling about what you can do: >>> >>> >>> http://svn.osgeo.org/geotools/trunk/modules/library/coverage/src/test/java/org/geotools/coverage/processing/ScaleTest.java >>> >>> >>> Simone. >>> ------------------------------------------------------- >>> Ing. Simone Giannecchini >>> GeoSolutions S.A.S. >>> Founder - Software Engineer >>> Via Carignoni 51 >>> 55041 Camaiore (LU) >>> Italy >>> >>> phone: +39 0584983027 >>> fax: +39 0584983027 >>> mob: +39 333 8128928 >>> >>> >>> http://www.geo-solutions.it >>> http://geo-solutions.blogspot.com/ >>> http://www.linkedin.com/in/simonegiannecchini >>> http://twitter.com/simogeo >>> >>> ------------------------------------------------------- >>> >>> >>> >>> On Mon, Mar 15, 2010 at 6:29 PM, john poole<[email protected]> wrote: >>> >>> >>>> Is there a way to call Coverage.resample so that accuracy is >>>> sacrificed for speed? >>>> i.e. can we change the block size from whatever the default is, (9?) to >>>> be something larger? >>>> >>>> >>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> Download Intel® Parallel Studio Eval >>>> Try the new software tools for yourself. Speed compiling, find bugs >>>> proactively, and fine-tune applications for parallel performance. >>>> See why Intel Parallel Studio got high marks during beta. >>>> http://p.sf.net/sfu/intel-sw-dev >>>> _______________________________________________ >>>> Geotools-gt2-users mailing list >>>> [email protected] >>>> https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users >>>> >>>> >>>> >>> . >>> >>> >>> >> >> >> > . > > ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Geotools-gt2-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
