Curtis L. Olson [EMAIL PROTECTED] said:
Ground elevation problems ...
I'm starting at KHAF (because it illustrates the problem pretty well.)
I'm using the A4, but the problem is with any aircraft.
Below is the fix for that bug. It's just a one line change. My apologies if
this mailer
On 12/16/02 at 12:07 PM David Luff wrote:
Some time ago (Sept/Oct) there was a long discussion about getting the
ground elevation at an arbitrary point which left me very confused after
reading it and didn't seem to come to any definate conclusion. What is
the
situation at the moment? Is there a
David Luff [EMAIL PROTECTED] said:
What does the scenery_center refer to? Is this the exact location at which
I receive the terrain_elev, or the center of the tile?
Neither actually, but it is a tile center. It is usually the center of the
tile that the aircraft is currently located over.
On 12/16/02 at 3:10 PM Jim Wilson wrote:
David Luff [EMAIL PROTECTED] said:
What does the scenery_center refer to? Is this the exact location at
which
I receive the terrain_elev, or the center of the tile?
Neither actually, but it is a tile center. It is usually the center of
the
tile that
Sam Varner writes:
How can I get the ground elevation and normal vector for a particular
longitude and latitude?
See Scenery / hitlist / hitlist.cxx / fgCurrentElev()
Note this is very likely to change, but the API should stay
the same
These are available for the current FDM in the global
Hi Sam:
Not sure about the normal vector you mention, but as far as the ground
elevation you can get that off of the charts (maps) provided by the
U.S.G.S.
For some areas there are CD ROMS available with (for example all the
state of California as 7.5 min topo maps. The one that I have is from
OOPS, had a typo in that link. (a , vice a .).
Here's a better one anyway:
http://maps.nationalgeographic.com/topo/gps.cfm
jj
jj wrote:
snip
The one that I have is from the National Geographic Society. (see
http://www,topo.com
snip
___
On Tue, 2002-04-16 at 08:49, Norman Vine wrote:
These are available for the current FDM in the global Scenery
instantiation see Scenery / scenery.hxx
This looks like what I need. (Thanks for your reply too, jj. I'm
always up for cool map stuf:) One problem, I see a set_cur_normal(),
but I
