Chris Metzler wrote:
On Tue, 28 Dec 2004 14:35:34 +0100
Frank Olaf wrote:
To where should I direct concerns about the scenery?
Stuff like this, which looks like a bug or other such problem, is probably
best for the developer list.
There is quite a large portion of scenery near my home which is terribly
incorrect. From N60.50 to N61.00, E11 there is a large strip running
east and west with apparently no elevation data.
I'm not sure if this is reported somwhere previously, but someone should
be notified about the problem. I'm using scenery I downloaded
about 1 month ago with the 9.6 windows binaries.
Confirmed with the most recent scenery (generated this past few weeks).
It's not a case of missing tiles. The scenery is there -- it's just
anomalously flat (in the midst of a region with a lot of hills), with
sharp edges, as if all the DEM data for this region reads 0.
Our terrain data comes from SRTM which has a few warts and missing
areas. I haven't started to think about how to blend data to address
this. I was hoping that at somepoint someone would release a fixed
SRTM based data set. I haven't heard of anything yet. For what it's
worth there is also problems at one end of the grand canyon, parts of
Rhode Island, and often some prominant mountains are cut off too short
because the peaks didn't come out right in SRTM. These problems are
extremely tedious (at best to fix by hand) and you need to have a better
reference data set to do anything about it.
Curt.
--
Curtis Olsonhttp://www.flightgear.org/~curt
HumanFIRST Program http://www.humanfirst.umn.edu/
FlightGear Project http://www.flightgear.org
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