load terrain data (GfxCore::LoadDEM function)

[detrito]

hi all,

in the manual it stands that "Survex 1.2.18 added support for loading
terrain data and rendering it as a transparent surface. We recommend
using this new code in preference, but previously the simplest approach
was to generate a .svx file with the surface mesh in and display it
with the survey data."

there is not much documentation about this process (e.g. supported
files and expected typedef) but reading the GfxCore::LoadDEM function,
it seems that the supported digitail terrain model (DTM) files are .hgt
and .bil.

I usually work with DTM in raster (.tiff) format, so I converted my DTM
in a signed integer .bil file [1] with ESRI's ArcMap (see attachement
for file details). after this process, I am able to load the .bil file
in survex (file->open terrain) with no error on the screen or on the
console. but despite the activated view->terrain checkbox, I sadly don't
see any terrain..

any help?

[1] today's DTM have millimiter precision: support of signed float
    would be really nice :)

thanks in advance, detrito

-- 
gpg --recv-key 0x88D6D3C6
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 1495 bytes
Desc: OpenPGP digital signature
URL: <http://lists.survex.com/pipermail/survex/attachments/20160917/00b480f6/attachment.sig>