Hi,
I am seeing this warnings and trying to build with poppler (a trunk
build here) fails too with
pdfdataset.obj : error LNK2001: unresolved external symbol "public:
__cdecl SplashOutputDev::SplashOutputDev(enum
SplashColorMode,int,bool,unsigned char *,bool,bool,enum
SplashThinLineMode,boo
Hi David,
Following on from the VRT / Bigtiff comparison Jukka posted. Have you
considered storing the data as a single KEA format file, which is based on HDF5?
I have the National Elevation Dataset for the US, which comprises 3,605 1 x 1
degree tiles at 1 arc sec resolution. I first created a
Now what to do instead? A WMS/WCS service can send a piece of DEM with
thousands of pixels as GeoTIFF in a second and a heavy client like QGIS
could continue the analysis. Or you can use the existing vrt file and read
the region of interest with gdal_translate. This request is not very fast
eith
David Baker (Geoscience chk.com> writes:
>
> Jukka,
>
> Jukka wrote:
> >I was experimenting with something like a "GIS service without a GIS server)
> >and I have some examples online but...
>
> I am looking to do as you have, a RESTful service to query the elevation
at a given location. This
Norman,
Yes it does... At first I am looking to see if I can do this "off the shelf"
with just the tools in the GDAL/ORG toolset. Are you thinking of using OGR to
do the spatial query with the spatialite db? Would a .qix indexed tile index
shapefile work?
David
From: Norman Vine [mailto:n
This is an application that is just screaming for a spatial index
For starters you could build a spatialite db of the individual file extents
that returned the filename to pass to gdallocationinfo
On Feb 1, 2014, at 9:14 AM, "David Baker (Geoscience)"
wrote:
> Jukka,
>
> Jukka wrote:
>> I was
Jukka,
Jukka wrote:
>I was experimenting with something like a "GIS service without a GIS server)
>and I have some examples online but...
I am looking to do as you have, a RESTful service to query the elevation at a
given location. This will be used to in a DQM process as well as a geologic
ap
Evan,
I am not sure how to profile as I do not have access to the code to profile. I
did do a timing test...
vrt file = 22,970 KB
bil file = 35,180 KB * 55,501
I piped five locations from the loc.txt file:
-96.0 36.0
-98.0 37.0
-100.0 38.0
-99.0 39.0
-101.0 35.0
gdallocationinfo -valonly -geo
David Baker (Geoscience chk.com> writes:
>
>
>
> Dev’s,
>
> I have a set of 55,501 bil files in a single directory. They are DEMS
data that cover the US in 7.5 minute tiles. I would like to randomly access
elevations at a given lat/lon’s from the whole dataset. I created a vrt
file from t
