From: Jeremy N. <Jer...@sf...> - 2007-09-26 18:24:07
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Does the geotools api have any capability of computing a world file based on a series of real world points, and their corresponding image (pixel) points? If not, has anyone done this before? If so, can you supply code examples as to how to compute the values. Thanks in advance, -- __________________________________ Jeremy Nix Senior Application Developer Southwest Financial Services, Ltd. (513) 621-6699 |
From: Jan J. <h....@ce...> - 2007-09-29 04:33:45
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Hi, Maybe AffineTransformBuidler in Referencing modul can halp you. It should generate coefficients that are contained in worldfile. It's in referencing since 2.4 Try this: //image coordinates DirectPosition source = new DirectPosition2D( DefaultCartesianCS.GENERIC_2D, x, y); //world coordinates DirectPosition target = new DirectPosition2D( DefaultCartesianCS.GENERIC_2D, x, y); MappedPosition mp = new MappedPosition(source, target); etc..... //Make List of all mapped positions you have List /*<MappedPositions>*/ vectors = new ArrayList(); vectors.add(mp), etc..... MathTransformBuilder builder = new AffineTransformBuilder(vectors); MathTransform trans = builder.getMathTransform(); System.out.print(trans); Hope it helps. Cheers, Jan. ______________________________________________________________ > Od: Jer...@sf... > Komu: geo...@li... > Datum: 26.09.2007 20:24 > Předmět: [Geotools-gt2-users] Computing Worldfile from series of points > >Does the geotools api have any capability of computing a world file >based on a series of real world points, and their corresponding image >(pixel) points? If not, has anyone done this before? If so, can you >supply code examples as to how to compute the values. > >Thanks in advance, > >-- > >__________________________________ >Jeremy Nix >Senior Application Developer >Southwest Financial Services, Ltd. >(513) 621-6699 > > >------------------------------------------------------------------------- >This SF.net email is sponsored by: Microsoft >Defy all challenges. Microsoft(R) Visual Studio 2005. >http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ >_______________________________________________ >Geotools-gt2-users mailing list >Geo...@li... >https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users > |