Hi Chris, Sorry, its been a busy week and I have not had time to keep up with your questions. Its not immediately evident to me what is wrong with your code. I would have to debug it over on my end. You said your data is a shapefile with a few thousands rows in it? If there are no licensing or confidentiality issues is there any chance i can get my hands on it? that way i could test over here.
If so, please send the location of the shapefile (you can in a private email if you wish). Also the most recent version of all your code. -justin Chris wrote: > Sorry, it is me again but I'm still stuck with the same problem: I > tried the following > > > > Coordinate[] c = new > Coordinate[]{(l1.getStartPoint()).getCoordinate(), p.getCoordinate()}; > LineString l1a = new LineString(new CoordinateArraySequence(c), new > GeometryFactory(new PrecisionModel( > PrecisionModel.maximumPreciseValue), 4326)); > > l1_sub.add(l1a); > if(!l1.covers(l1a)) > System.out.println("Error: a"); > > But this did not improve anything (Still prints Error: a). Hence, in > the following of my routine, I trying to see which sub_part of l1 is > having an intersection with l2, it happens (more than 1000 times for > my shapefile) that I can find any l1 sub_part intersecting l2. > > To detect the intersection, I'm using the following code: > int k = 0; > while (k < l1_sub.size() && !((LineString) l1_sub.get(k)).intersects(l2)) { > ++k; > } > if(k >= l1_sub.size()) { > System.out.println("error"); > } > > I hope someone can help me with this, because of this, my graph is > not perfectly connected and this is kinda annoying. This is the last > problem in my project... thanks in advance. > > P.S: I forgot to mention in my previous mail that p in the > intersection point between l1 and another linestring l2. > >> On Jan 15, 2008 2:12 AM, Chris < [EMAIL PROTECTED]> wrote: >> >>> Could you tell me what is wrong with this part of code? >>> >>> Coordinate[] c = new Coordinate[]{(l1.getStartPoint()).getCoordinate(), >>> p.getCoordinate()}; >>> LineString l1a = new LineString(new CoordinateArraySequence(c), new >>> GeometryFactory()); >>> l1_sub.add(l1a); >>> if(!l1.covers(l1a)) >>> System.out.println("Error: a"); >>> >>> It displays "Error: a". Because of this, it happens that none of the >>> subparts of l1 intersects with l2 :( >>> >>> >>> Regards, >>> Chris. > > > !DSPAM:4007,4790fcb4143341804284693! > -- Justin Deoliveira The Open Planning Project http://topp.openplans.org ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Geotools-gt2-users mailing list Geotools-gt2-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users