Mark and Geotools Programmers, I found this paper:
http://doesen0.informatik.uni-leipzig.de/proceedings/paper/68.pdf I believe it talks about the type of curved WKT geometries that Mark mentioned in his e-mail. I looked at the Javadoc for Geotools, and I don't see support for these curved geometries. Is there support for the curved geometries in Geotools? If not, is there interest in adding this support? The reason I ask is that I am interested in writing applications in Java that can be used for linear stationing/route stationing for levee alignments. I'll need ciricular curve support to do this, something JTS doesn't have currently. I was already thinking about how I might extend WKT to support these curved geometries, but it looks like this has already been done. I'd be interested in helping with any effort to add support for these simple curved geometries (in WKT) to Geotools if it wasn't there already. (Or perhaps this needs to go through the GeoAPI project first?) The Sunburned Surveyor On Mon, Mar 9, 2009 at 1:37 AM, Mark Leslie <[email protected]> wrote: > Jody, > Here are some mildly interesting examples of the three main curve times > from the sql-mm spec. There is also multicurve and multisurface, but > those are less fun. > > CIRCULARSTRING(220268.439465645 150415.359530563,220227.333322076 > 150505.561285879,220227.353105332 150406.434743975) > > COMPOUNDCURVE((153.72942375 -27.21757040, 152.29285719 -29.23940482, > 154.74034096 -30.51635287),CIRCULARSTRING(154.74034096 -30.51635287, > 154.74034096 -30.51635287, 152.39926953 -32.16574411, 155.11278414 > -34.08116619, 151.86720784 -35.62414508)) > > CURVEPOLYGON(CIRCULARSTRING(143.62025166838282 -30.037497356076827, > 142.92857147299705 -32.75101196874403, 145.96132309891922 > -34.985671061528784, 149.57565307617188 -33.41153335571289, > 149.41972407584802 -29.824672680573517, 146.1209416055467 > -30.19711586270431, 143.62025166838282 > -30.037497356076827),(144.84399355252685 -31.26123924022086, > 144.20551952601693 -32.27215644886158, 145.55230712890625 > -33.49203872680664, 147.97080993652344 -32.03618621826172, > 146.38697244992585 -31.47406391572417, 144.84399355252685 > -31.26123924022086))' > > -- > Mark Leslie > Geospatial Software Architect > LISAsoft > > ------------------------------------------------------------- > Ph: +61 2 8570 5000 Fax: +61 2 8570 5099 Mob: +61 > Suite 112, Jones Bay Wharf 19-21 Pirrama Rd Pyrmont NSW 2009 > ------------------------------------------------------------- > > LISAsoft is part of the A2end Group of Companies > http://www.ardec.com.au > http://www.lisasoft.com > http://www.terrapages.com > > ------------------------------------------------------------------------------ > Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA > -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise > -Strategies to boost innovation and cut costs with open source participation > -Receive a $600 discount off the registration fee with the source code: SFAD > http://p.sf.net/sfu/XcvMzF8H > _______________________________________________ > Geotools-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/geotools-devel > ------------------------------------------------------------------------------ Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H _______________________________________________ Geotools-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-devel
