On Tue, Nov 11, 2008 at 11:10 AM, Jan Jezek <[EMAIL PROTECTED]> wrote: > Hi Graham, > > I've done something that might be useful during Google Summer of Code 2006/07. > It's little bit out of date so I'm just trying to put the udig plugin (that > includes raster support) into the shape in the repo. > > In the short I've made few 'MathTransformBuilder' objects, that calculates > you proper transformation from set of ground control point (using LSM).
Least Square Matching? Nice!!! > You can calculate linear method like Similar, Affine, Projective or warping > methods like 'rubber sheeting' or GridBased methods and then you are able to > apply it on the vector or raster. For rasters I tried to use extended JAI > WarpTransform2D to apply warping methods but this work has not been committed > to GeoTools trunk yet. Why this work has not been committed? I think it is a shame that such work is still floating around! Simone. > > Some (little bit out of date) documentation is here: > http://geotools.codehaus.org/New+Transformation+Algorithms+for+GeoTools+and+uDig > > Some methods are already committed under > GeoTools/Referencig/operation/builder sub package (mostly the linear ones - > should work for rasters as well as vectors). > > Some code (still waiting for trunk) is here (it includes the raster support > for warping algorithms): > http://gtsvn.refractions.net/trunk/spike/jan/gsoc-transformations/ > > I'll try to ensure that everything is up to date during todays evening and > then I send you the link for simple plugin that should work for trunk. > Best regards, > > Jan. > > > > > > ______________________________________________________________ >> Od: [EMAIL PROTECTED] >> Komu: User-friendly Desktop Internet GIS >> <udig-devel@lists.refractions.net> >> Datum: 10.11.2008 22:58 >> Předmět: [udig-devel] GDAL and JAI >> >>Hi, >> >>I'm looking into making a small module in uDig for image manipulation. >>Basically my client wants to take an aerial photo and place it overtop of a >>satellite base layer. They want to be able to manually manipulate this photo >>and visually fit it onto the correct spot of the map. The manipulation they >>want to be able to achieve includes shrinking/growing the image, rotating it >>and morphing it to align correctly. Ideally this would be done in real-time >>with the user manipulating the image with their mouse and maybe some >>numerical input. Once the user is satisfied with their approximate >>placement, they can "lock it in" at which point I will save the resulting >>image and its coordinates as a geotiff. >> >>I am currently looking at JAI and GDAL to see if these sorts of image >>manipulation functions are available. I haven't used either library very >>extensively, so it is pretty new to me. The GDAL documentation seems to be >>pretty light in general (at least for Java and GeoTools). I've only found >>these resources: >> >>- http://docs.codehaus.org/display/GEOTOOLS/ImageIO-EXT+GDAL >>- http://trac.osgeo.org/gdal/wiki/GdalOgrInJava >> >>Does anyone know of other helpful resources that I could use for this >>project? Are there any uDig modules that currently do anything like this, >>with example code I could look at? Or perhaps someone has some suggestions >>for how I might approach this so that it fits nicely with current uDig >>designs? If this functionality sounds useful to others, I'm all for trying >>to make this module "official". Thanks, >> >>-- Graham Davis >>Refractions Research Inc. >>[EMAIL PROTECTED] >> >>_______________________________________________ >>User-friendly Desktop Internet GIS (uDig) >>http://udig.refractions.net >>http://lists.refractions.net/mailman/listinfo/udig-devel >> > > _______________________________________________ > User-friendly Desktop Internet GIS (uDig) > http://udig.refractions.net > http://lists.refractions.net/mailman/listinfo/udig-devel > -- ------------------------------------------------------- Eng. Simone Giannecchini GeoSolutions S.A.S. Owner - 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://www.geo-solutions.it/simone.giannecchini http://www.linkedin.com/in/simonegiannecchini -------------------------------------------------------
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