RE: [gdal-dev] SRTM maps and altitude...

2010-06-14 Thread John Donovan
r pixel coordinates, and the numbers in brackets are the values, one for each band. Hope this helps, -JD -Original Message- From: gdal-dev-boun...@lists.osgeo.org [mailto:gdal-dev-boun...@lists.osgeo.org] On Behalf Of Gianni Olivieri Sent: 11 June 2010 15:34 To: gdal-dev@lists.osgeo.org Sub

Re: [gdal-dev] SRTM maps and altitude...

2010-06-14 Thread David Burken
On 06/14/2010 04:41 AM, Gianni Olivieri wrote: 2010/6/14 Gianni Olivieri: 2010/6/11 Gianni Olivieri: 2010/6/11 Matt Klaric: While you certainly can accomplish this using GDAL, you'll need to first figure out which hgt file to open, then translate the geographic coordinate to

Re: [gdal-dev] SRTM maps and altitude...

2010-06-14 Thread Massimo Di Stefano
If you need only the core library (it includes the ossim-height executable) you will find ossim packaged for debian unstable (SID) [1] or the complete set of apps for ubuntu 9.04 [2] [1] http://wiki.debian.org/DebianGis/PackageList [2] https://launchpad.net/~ubuntugis btw using gdal you can read

Re: [gdal-dev] SRTM maps and altitude...

2010-06-14 Thread Gianni Olivieri
2010/6/14 Gianni Olivieri : > 2010/6/11 Gianni Olivieri : >> 2010/6/11 Matt Klaric : >>> While you certainly can accomplish this using GDAL, you'll need to first >>> figure out which hgt file to open, then translate the geographic coordinate >>> to the image coordinate to know what pixel value to l

Re: [gdal-dev] SRTM maps and altitude...

2010-06-14 Thread Gianni Olivieri
2010/6/11 Gianni Olivieri : > 2010/6/11 Matt Klaric : >> While you certainly can accomplish this using GDAL, you'll need to first >> figure out which hgt file to open, then translate the geographic coordinate >> to the image coordinate to know what pixel value to lookup. >> >> An alternative soluti

Re: [gdal-dev] SRTM maps and altitude...

2010-06-11 Thread Matt Klaric
While you certainly can accomplish this using GDAL, you'll need to first figure out which hgt file to open, then translate the geographic coordinate to the image coordinate to know what pixel value to lookup. An alternative solution is OSSIM (http://www.ossim.org/). It has a command-line app call

Re: [gdal-dev] SRTM maps and altitude...

2010-06-11 Thread Gianni Olivieri
2010/6/11 Matt Klaric : > While you certainly can accomplish this using GDAL, you'll need to first > figure out which hgt file to open, then translate the geographic coordinate > to the image coordinate to know what pixel value to lookup. > > An alternative solution is OSSIM (http://www.ossim.org/)

[gdal-dev] SRTM maps and altitude...

2010-06-11 Thread Gianni Olivieri
Hallo, I need to extract the altitude of a GPS coordinate from a serie of HGT (SRTM or DEM) (I've download the entire Eurasia... So, for example, If I have a directory with all htg file and I'd like to know the altitude of this coords: 48°01'35.89" N 8°23'51,86" E how can I preceed? The el