The patches deal with three separate issues, all rolled up into one
tarball:
Currently, arrayfit always appends .arr.gz onto the name passed on the
command line, meaning that only tile names can be passed. The patch strips
off .arr or .arr.gz if present prior to it's appending, meaning that tile
names or filenames can be passed on the command line.
The interface to the OSGB36 conversion functions is cleaned up a lot. I
can't believe I originally wrote it in such an ugly manner!
A lot of console output (> 5000 lines per tile) is removed from the final
construction process, meaning that the output left can actually be read.
The attached patches significantly quieten the output from genapts, which in it's current form resembles the universe flying by on a bad hair day Remember chaps, console output on Windows is slooowwwwww... Normal service may be resumed using --verbose or -v. I've also added a short help, obtainable with --help or -h. I've also added a couple of extra options, --airport=abcd for just generating a particular airport, and --tile=<[we]xxx[ns]xx> for generating a 1x1 degree tile. We currently have --chunk=<[we]xxx[ns]xx> for generating a 10x10 degree chunk, and I'd like to eventually add --tile as an option to all tools that take --chunk.
This one adds the tile option to
tgvpf.
Erik Hofman:
Some small code changes for IRIX.
It looks like the program gets into an infinite loop while findind
edges for a contour (inserting the same edge over and over until the
program runs out of memory). i am not quite sure i understand the code
but the following patch solved the problem for me:
This could cause tile edges to no longer match up becuase this routine would
adjust node elevations which it shouldn't have. Hopefully this change fixes
the problem.
Attached are patches to Terragear to enable it to compile out of the box on
Cygwin (once all the relavent libraries have been compiled). Specifically
they fix a conflict with another version of min/max somewhere on the
system.
based on the terrain simplification algorithm in Michael Garlands paper
located here:
http://graphics.cs.uiuc.edu/~garland/software/terra.html
Essentially start with two triangles forming the bounding surface.
Then add the point that has the greatest error. Retriangulate.
Recalcuate errors for each remaining point, add the one with the
greatest error. Lather, rinse, repeat.
format. The big trick was that the polygon clipper is completely 2d. So
I needed to add code to preserve the elevations in the clipped output and
fill in plausible elevations for any new points created as a result of the
clipping.
intermediate mode. The goal then is that these elevations would be
preserved throughout the tile construction process and the surrounding
geometry would fill in without gaps. This has potential applications for
airports and runways of course as well as roads, rivers, streams, railroads,
or any other object where we might want to control the final elevation in
advance.
in .dem format. The .arr format is a much simpler (and a bit less flexible)
specifically for use as an intermediate format when building scenery. Any
number of various raw terrain formats could be translated into the common
.arr format which then greatly simplifies life for the build tiles util.
