Re: [Flightgear-devel] Re: [Terragear-devel] VMAP0 resolution

2003-09-17 Thread Martin Spott
"Curtis L. Olson" <[EMAIL PROTECTED]> wrote: > Going a slightly different direction with this, the latest scenery > build consumes almost 7Gb (up from the previous 4.5Gb) which means it > takes me about 11 cd's to fully contain it. Is the new rebuild already complete ? I'm wondering: bash-2.03$

Re: [Flightgear-devel] Re: [Terragear-devel] VMAP0 resolution

2003-09-17 Thread Curtis L. Olson
Martin Spott writes: > I would not use highly detailed scenery as a default. I'm thinking of a > scenery database as a repository which serves as a data source for the > usual terrain build process (not to serve as the run-time scenery > itself!). So if people are really interested in using highres

Re: [Flightgear-devel] Re: [Terragear-devel] VMAP0 resolution

2003-09-17 Thread Martin Spott
"Norman Vine" <[EMAIL PROTECTED]> wrote: > And I am worried about security issues when we have thousands of > users all wanting to update their little piece of the earth :-) I didn't mean that _everyone_ should be able to write to the "scenery database" (or however we'd call it _if_ it really sho

RE: [Flightgear-devel] Re: [Terragear-devel] VMAP0 resolution

2003-09-17 Thread Norman Vine
Martin Spott writes: > > "Norman Vine" <[EMAIL PROTECTED]> wrote: > > Martin Spott writes: > > >> We would need a database where everyone around the world could be > >> granted write access to a dataset that is kept at one central point > >> (later we might talk about replication or a distribute

Re: [Flightgear-devel] Re: [Terragear-devel] VMAP0 resolution

2003-09-17 Thread Martin Spott
"Norman Vine" <[EMAIL PROTECTED]> wrote: > Martin Spott writes: >> We would need a database where everyone around the world could be >> granted write access to a dataset that is kept at one central point >> (later we might talk about replication or a distributed database), > I think we want to s

RE: [Flightgear-devel] Re: [Terragear-devel] VMAP0 resolution

2003-09-17 Thread Norman Vine
Martin Spott writes: > "Norman Vine" <[EMAIL PROTECTED]> wrote: > > Martin Spott writes: > >> > >> I wonder how long it takes until someone imports the world's SRTM data > >> into GRASS (with a networked database backend like PostGIS). > > > > AFAIK lots of people are doing this > > Do you sugg

Re: [Flightgear-devel] Re: [Terragear-devel] VMAP0 resolution

2003-09-16 Thread Martin Spott
"Norman Vine" <[EMAIL PROTECTED]> wrote: > Martin Spott writes: >> >> I wonder how long it takes until someone imports the world's SRTM data >> into GRASS (with a networked database backend like PostGIS). > > AFAIK lots of people are doing this Do you suggest we should do so too ? Why don't peop

RE: [Flightgear-devel] Re: [Terragear-devel] VMAP0 resolution

2003-09-16 Thread Norman Vine
Martin Spott writes: > > I wonder how long it takes until someone imports the world's SRTM data > into GRASS (with a networked database backend like PostGIS). AFAIK lots of people are doing this > I assume > quite a few people not related to FlightGear already have data that > could be merged. T

[Flightgear-devel] Re: [Terragear-devel] VMAP0 resolution

2003-09-16 Thread Martin Spott
David Megginson <[EMAIL PROTECTED]> wrote: > Norm is right that the only robust solution is to build a big, central > database-driven GIS repository, where we can check out individual > polygons, lines, and elevation points, edit them, and then check them > back in again (preferably in a distribut

RE: [Flightgear-devel] Re: [Terragear-devel] VMAP0 resolution

2003-09-14 Thread Norman Vine
Martin Spott writes: > "Norman Vine" <[EMAIL PROTECTED]> wrote: > > Martin Spott writes: > >> "Norman Vine" <[EMAIL PROTECTED]> wrote: > >> > >> > This can be turned into a Polygon Algebra abstraction, > >> > >> Every piece of manually > >> refined land cover or terrain elevation could be tagge

Re: [Flightgear-devel] Re: [Terragear-devel] VMAP0 resolution

2003-09-14 Thread Martin Spott
"Norman Vine" <[EMAIL PROTECTED]> wrote: > Martin Spott writes: >> "Norman Vine" <[EMAIL PROTECTED]> wrote: >> >> > This can be turned into a Polygon Algebra abstraction, >> >> Every piece of manually >> refined land cover or terrain elevation could be tagged with a >> surrounding polygon. > S

RE: [Flightgear-devel] Re: [Terragear-devel] VMAP0 resolution

2003-09-14 Thread Norman Vine
Martin Spott writes: > "Norman Vine" <[EMAIL PROTECTED]> wrote: > > > This can be turned into a Polygon Algebra abstraction, > > Every piece of manually > refined land cover or terrain elevation could be tagged with a > surrounding polygon. Sure sounds like "polygon algebra" to me :-) see htt

Re: [Flightgear-devel] Re: [Terragear-devel] VMAP0 resolution

2003-09-14 Thread Martin Spott
"Norman Vine" <[EMAIL PROTECTED]> wrote: > Martin Spott writes: >> Oh, we _do_ have the ability to produce higer res data by hand. The >> missing bit is a mechanism to modify the automatic scenery build so >> that we can specify an order of different data sources to query. >> This way we could hav

RE: [Flightgear-devel] Re: [Terragear-devel] VMAP0 resolution

2003-09-14 Thread Norman Vine
Martin Spott writes: > > "Norman Vine" <[EMAIL PROTECTED]> wrote: > > > There is no shortcut to be found here, spend your energies looking for > > higher res data sets to splice in to the vmap0 locally ! > > Oh, we _do_ have the ability to produce higer res data by hand. The > missing bit is a

Re: [Flightgear-devel] Re: [Terragear-devel] VMAP0 resolution

2003-09-14 Thread William Earnest
Martin Spott wrote: "Norman Vine" <[EMAIL PROTECTED]> wrote: There is no shortcut to be found here, spend your energies looking for higher res data sets to splice in to the vmap0 locally ! Oh, we _do_ have the ability to produce higer res data by hand. The missing bit is a mechanism to modify

Re: [Flightgear-devel] Re: [Terragear-devel] VMAP0 resolution

2003-09-14 Thread Martin Spott
"Norman Vine" <[EMAIL PROTECTED]> wrote: > There is no shortcut to be found here, spend your energies looking for > higher res data sets to splice in to the vmap0 locally ! Oh, we _do_ have the ability to produce higer res data by hand. The missing bit is a mechanism to modify the automatic scen

RE: [Flightgear-devel] Re: [Terragear-devel] VMAP0 resolution

2003-09-14 Thread Norman Vine
Erik Hofman writes: > Martin Spott wrote: > > Erik Hofman wrote: > > > > > >>I was wondering, since we have a global developers base, how difficult > >>would it be to measure the error of the VMap0 data globally [...] > > > > You mean to take kown places for reference and determine the error of

Re: [Flightgear-devel] Re: [Terragear-devel] VMAP0 resolution

2003-09-14 Thread Erik Hofman
Martin Spott wrote: Erik Hofman wrote: I was wondering, since we have a global developers base, how difficult would it be to measure the error of the VMap0 data globally [...] You mean to take kown places for reference and determine the error of their placement in VMap0 data ? We'll have only a

[Flightgear-devel] Re: [Terragear-devel] VMAP0 resolution

2003-09-14 Thread Martin Spott
Erik Hofman <[EMAIL PROTECTED]> wrote: > I was wondering, since we have a global developers base, how difficult > would it be to measure the error of the VMap0 data globally [...] You mean to take kown places for reference and determine the error of their placement in VMap0 data ? We'll have on