On Sun, Aug 23, 2009 at 12:08 AM, Itzchak Raiskin<itzchak.rais...@gmail.com> wrote: > Hi > I want to use SQLite in a GIS application where I create a database > containing terrain data (coordinates, height). > I would like to query this database with start and end points of a line and > get a vector with all heights point along this line. > I can, of course create a query for each point along the line, but this will > be very time consuming as I have hundreds of lines with hundreds of points. > Any suggestions?
or, you can build on the work already done by USGS for you (they have worldwide data as well). http://gisdata.usgs.gov/xmlwebservices2/elevation_service.asmx > > Thanks, Itzik > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > -- Puneet Kishor http://www.punkish.org Carbon Model http://carbonmodel.org Charter Member, Open Source Geospatial Foundation http://www.osgeo.org Science Commons Fellow, http://sciencecommons.org/about/whoweare/kishor Nelson Institute, UW-Madison http://www.nelson.wisc.edu ----------------------------------------------------------------------- Assertions are politics; backing up assertions with evidence is science ======================================================================= Sent from Madison, WI, United States _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
