Re: [Flightgear-devel] San Francisco city lake

2003-09-08 Thread Ivo
> Could you not replace all 'default' coverage with one of the coverages > bounding the area of default cover? I thought about that too, but I think it will destroy some detail. There's a small lake in the west of Amsterdam that turns up as default coverage. I use it when I fly around the place,

Re: [Flightgear-devel] San Francisco city lake

2003-09-08 Thread Lee Elliott
On Monday 08 Sep 2003 16:15, Curtis L. Olson wrote: > Alex Perry writes: > > From: Erik Hofman <[EMAIL PROTECTED]> > > > http://www.a1.nl/~ehofman/fgfs/gallery/test/san_francisco_natural.jpg > > > http://www.a1.nl/~ehofman/fgfs/gallery/test/san_francisco_fgfs.jpg > > > > Someone was complaining ab

RE: [Flightgear-devel] San Francisco city lake

2003-09-08 Thread Norman Vine
Julian Foad writes: > Norman Vine wrote: > > > > Also for water area delineation the Hydrographic database in the message > > I forwarded to the terragear list should be quite good as it has had *lots* of > > corrections applied > > The fact that something has had lots of corrections applied does

Re: [Flightgear-devel] San Francisco city lake

2003-09-08 Thread Julian Foad
Norman Vine wrote: Also for water area delineation the Hydrographic database in the message I forwarded to the terragear list should be quite good as it has had *lots* of corrections applied The fact that something has had lots of corrections applied does not necessarily mean it is quite good ... i

RE: [Flightgear-devel] San Francisco city lake

2003-09-08 Thread Norman Vine
David Megginson writes: > Curtis L. Olson writes: > > > The real issue here is what texture should we choose for "default" > > areas for which vmap0 has no coverage opinion? > > It would be nice if we could do some kind of weighted average of the > surrounding areas, excluding water. At least

Re: [Flightgear-devel] San Francisco city lake

2003-09-08 Thread David Megginson
Curtis L. Olson writes: > The real issue here is what texture should we choose for "default" > areas for which vmap0 has no coverage opinion? It would be nice if we could do some kind of weighted average of the surrounding areas, excluding water. At least we'd be less likely to get something o

Re: [Flightgear-devel] San Francisco city lake

2003-09-08 Thread Martin Spott
James Turner <[EMAIL PROTECTED]> wrote: > The impression I have is that no matter what texture is picked for > 'default' landcover, it's going to be massively, obviously wrong much > of the time. This leads to the assumption that there is need for another source of landcover data. The SRTM misi

Re: [Flightgear-devel] San Francisco city lake

2003-09-08 Thread James Turner
On Monday, September 8, 2003, at 04:07 pm, Alex Perry wrote: I suspect that, since the vmap data was collected, the dips were drained and thereby turned into the parkland that you see in the photo. The problem is, that 'lake' is the Golden Gate Park. Having it be anything other than green parkl

Re: [Flightgear-devel] San Francisco city lake

2003-09-08 Thread Curtis L. Olson
Alex Perry writes: > From: Erik Hofman <[EMAIL PROTECTED]> > > http://www.a1.nl/~ehofman/fgfs/gallery/test/san_francisco_natural.jpg > > http://www.a1.nl/~ehofman/fgfs/gallery/test/san_francisco_fgfs.jpg > > Someone was complaining about the lake in the middle of the city. > I suspect it is the ag

[Flightgear-devel] San Francisco city lake

2003-09-08 Thread Alex Perry
From: Erik Hofman <[EMAIL PROTECTED]> > http://www.a1.nl/~ehofman/fgfs/gallery/test/san_francisco_natural.jpg > http://www.a1.nl/~ehofman/fgfs/gallery/test/san_francisco_fgfs.jpg Someone was complaining about the lake in the middle of the city. I suspect it is the age of the vmap dataset that is t