Hi Yves, Curt, et al,

If someone does works on, and check in a TG-cs tool patch to 
handle 2 arcsec data, although I thought it always handled 
integer inputs, then they should also keep in mind processing 
say Canadian CDED1 0.75 arcsec data...

I did a patch to handle that back circa 2009, but 
searching around, it now seems lost in time ;=(( but 
I do not remember it requiring too much change... ie using 
a double instead of an int...

This will become even more important if the recent changes 
in sg_binobj.cxx gets rid of the 'swirlies' ;=)) thanks 
James, and Martin, and more people go for 'denser' scenery 
generation, breaking the 64K index barrier...


On Fri, 2011-10-07 at 12:23 +0200, HB-GRAL wrote:
> When someone wants to run "experiments" with this data, you can find 
> some test data in .dem format here:
> http://maptest.fgx.ch/public/2arc-alaska-dem/n70w140.zip
> Thanks a lot, Yves
> Am 07.10.11 12:07, schrieb HB-GRAL:
> > I am asking because I am currently working on Alaska elevation data for
> > the relief. I had to clip 6 px overlap and I converted the .flt data to
> > DEM format. HGT can not handle 1800x1800 px, but there is also a demchop
> > in terragear, right?
> >
> > I like to share the data when it is useful for scenery building. NED is
> > "seamless" and has a lot of more data included than SRTM. To complete,
> > should I change resolution to 1200x1200 and provide it as HGT files for
> > scenery creation ?
> >
> > Cheers, Yves
> >
> > Am 07.10.11 01:52, schrieb Curtis Olson:
> >> You might need to do some work with the tool that chops up the dem's into
> >> TerraGear tile sizes.  There are different terrain formats so you might 
> >> need
> >> to adapt the code to read a different format as well.  This part sounds 
> >> like
> >> it should be pretty straightforward if you have clear docs for the input
> >> format.
> >>
> >> On Thu, Oct 6, 2011 at 6:40 PM, HB-GRAL wrote:
> >>
> >>> Hi all
> >>>
> >>> Can terragear handle 2 arc second elevation data ? I read only about 1
> >>> arc and 3 arc data for the terragear toolchain.
> >>>
> >>> Cheers, Yves
> >>>

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