I've been using the Matterhorn point set to test things. I have a working plugin that uses Chew's algorithm to triangulate a point layer. I copied the code from the openjump core to my own directory structure then went through and changed things to use generics. Now I'm writing a strictSubset method for the tin class that will return a new tin with all the faces totally enclosed by a given envelope. This will be used to crop off the edge triangles created by the big initial simplex that aren't part of the point set. Then on to hillshading and other front end style stuff.
I didn't notice any file in the Swiss DEM data that included breaklines or boundaries, so I'm not sure how much use it will be for testing the next stage of the backend. Then again, I can't read German and they don't have a french version of the description file. --Christopher --- On Mon, 7/14/08, Stefan Steiniger <[EMAIL PROTECTED]> wrote: > From: Stefan Steiniger <[EMAIL PROTECTED]> > Subject: Re: [JPP-Devel] JTin Summer of Code Update: > To: "OpenJump develop and use" <jump-pilot-devel@lists.sourceforge.net> > Date: Monday, July 14, 2008, 9:47 PM > Hei, > > so did you look on the link I send a while ago on the swiss > DEM data? > Everything is there in different or one file. If you need > help I may > make a short description of that data in case they did not > provide the > english translation but only the german or french > description. > > stefan > > Sunburned Surveyor schrieb: > > Chris, > > > > You wrote: "3D point data would be fine for now, > but if you could get > > 3D point data + breaklines + boundaries, I would > thrilled." > > > > Would the breaklines and boundaries be provided as > LineStrings with z > > values in the LineString coordinates? > > > > This might take me a little doing, as I'll have to > write some AutoLISP > > to get the data out of CAD as WKT. I need some tools > that will do this > > anyways, but it'll take me a coupld of days. I > might be able to get it > > done by the end of the week? > > > > Landon > > > > P.S. - Any suggestions on the classes/class I should > start my code review with? > > > > On Mon, Jul 7, 2008 at 3:26 PM, Christopher > <[EMAIL PROTECTED]> wrote: > >>> From: Sunburned Surveyor > <[EMAIL PROTECTED]> > >>> I finally backtracked to Subclipse 1.2 on my > laptop, and I > >>> was able to > >>> download your source code for JTin. I'll > try to get > >>> that code review > >>> squeezed in tonight or tomorrow. > >>> > >> That's fine, give me a call if you need > anything explained. I just uploaded an updated set of > files. The new thing is that triangle clipping is > implemented and there is the ability to get a subset of the > tin (unused as of now, but it will be useful in the future). > Right now, I'm working on javadoc'n then hillshades. > >> > >>> I know that we talked a little about my > providing some CAD > >>> data that > >>> you could use to test JTin. What type of > simple features do > >>> you want? > >>> Do you want Point Features? Or do you want > LineStrings > >>> representing > >>> contours? > >>> > >>> Let me know what you have in mind. > >>> > >> 3D point data would be fine for now, but if you > could get 3D point data + breaklines + boundaries, I would > thrilled. > >> > >> Thanks, > >> --Christopher > >> > >> > > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move > Developer's challenge > Build the coolest Linux based applications with Moblin SDK > & win great prizes > Grand prize is a trip for two to an Open Source event > anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
