I use JTS [1] in my Java environment to do this. GEOS [2] is a C++ port of this, other libs like Geotools [3] can probably also do this...
[1]- http://sourceforge.net/projects/jts-topo-suite/ [2]- http://trac.osgeo.org/geos/ [3]- http://www.osgeo.org/geotools -- Barend Köbben Senior Lecturer ITC - University Twente, Faculty of Geo-Information Science and Earth Observation Dept. Of Geo-Information Processing (GIP) PO Box 217, 7500AE Enschede (The Netherlands) +31-(0)53 4874 253 On 17-09-10 09:51, "Henri De Feraudy" <[email protected]> wrote: > Hello, > I'm writing an application that reads GIS data from a POstGres+PostGis > database. > I thought accessing Well Known Binary data mihgt be faster than converting > to Well Known Text this with ST_AsText and then parsing. > Is the difference very significant? > Is there a FOSS library that does this, or is building my own pretty easy? > Thankyou > Henri > Faculty of Geo-Information Science and Earth Observation (ITC) University of Twente E-mail disclaimer The information in this e-mail, including any attachments, is intended for the addressee only. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution or action in relation to the content of this information is strictly prohibited. If you have received this e-mail by mistake, please delete the message and any attachment and inform the sender by return e-mail. ITC accepts no liability for any error or omission in the message content or for damage of any kind that may arise as a result of e-mail transmission. _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
