I am all for changing the generation tools but have one issue with the use of GRASS and that is how to use it. Currently there is some good doco's on building scenery via the current tools and also some scripts that people have put together to automate all or part of it.
With GRASS how ever there is no doco and so it would take people such as myself a long time to come up to speed. Would some be able to supply a nice howto doco for this process that even I could follow? I think we also need some doco covering how to setup a PostGIS setup with TG for building as i have several TB of GIS data that I use (under CC License ) and think that PostGIS might speed up my processing times Jason On Sun, 2011-11-13 at 10:58 +0000, Martin Spott wrote: > Curtis Olson wrote: > > > So this all sounds good (I think) except we now have to compute a point > > inside each material region. Easy, right? Well, except that all the > > published algorithms can tell you if a random point is inside a polygon or > > not, but they don't tell you how to manufacture a point that is guaranteed > > to be inside a polygon. > > Well, there _is_ OpenSource software which is capable of reliably > creating points in polygons (GRASS GIS, just to present a prominent > example, they call them "centroids") and "terragear-cs" did have such a > thing in the past decade, but Ralf Gerlich finally decided to back it > out again because later processing steps in TerraGear were designed to > not having to deal with certain corner-cases for valid ! points in > polygons. For more information, read thie fine comment in this diff: > > > http://mapserver.flightgear.org/git/gitweb.pl?p=terragear-cs;a=commitdiff;h=8e0e2b6cef93ac689f611e93ca6250d33f243fbe;hp=e813c093fc444d9c36bb992768e37a1abb8c47d4 > > Therefore I'm still in favour of the long-term idea to drop the entire > poly-preprocessing from TerraGear and, instead, add a frontend to read > the entire land cover and roads from a GRASS database. GRASS is > capable of doing all the clipping and "sliver" removal ("v.clean > tool=rmsa -c") in a topologically consistent and reliable way. > > Cheers, > Martin. ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-novd2d _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
