Hi Luca,
I haven't followed the discussion in detail, but you could use
https://gdal.org/programs/gdallocationinfo.html
to read out the values from your resampled raster.
The elevation differences between high and coarse resolution DEMs
strongly depend on the relief in the area of
Hi,
another, may be simpler option is SAGA GIS, its analytical hillshading
tool includes a ray tracing option:
http://www.saga-gis.org/saga_tool_doc/4.1.0/ta_lighting_0.html
Volker
On 05/16/2017 10:22 AM, Newcomb, Doug wrote:
Kenlo,
Suggest you look at GRASS GIS r.sun ,
Hi Nishith,
On 03/18/2015 08:27 PM, Nishith Maheshwari wrote:
Hi,
I am a masters student from IIIT Hyderabad and currently in my final
year of study and working in the Lab for Spatial Informatics here.
I was a part of GSOC 2014 and worked on the project *'Schematization
Plugin for QGIS'* last
On 12/08/2013 05:31 PM, Victor Fine wrote:
Hello,
I'm trying to write a driver , inside my program that uses GDAL (C++).
After the call to GDALAllRegister(); I call GDALRegister_MYDEM(),
which is much like in the example in
http://www.gdal.org/gdal_drivertut.html
After that, I try to call
In SAGA GIS there is a Crop to Data module (in Grid Tools module
library), which performs the task.
But this would require you to import your Geotif with the GDAL import
module, process it in SAGA, and finally export it as Geotif again with
the GDAL export module.
Best regards,
Volker
On
The workflow with QGIS described by Frank is also working with SAGA GIS.
SAGA also allows you to export a permament combination as image file
(tif, jpg, png ... including world file and kml) with the 'Export Image'
module.
Volker
On 02/21/2012 02:14 PM, Frank Broniewski wrote:
Hi,
the
Hi,
we encountered a problem with decimal precision when converting a SAGA
grid to ESRI ASCII.
I expect the problem arising from ASCII to double conversion by atof()
and/or from the Geotransform (pixel as point to pixel as area).
The SAGA header looks like
POSITION_XMIN =
This seems to me like an integer overflow - looking at the GDAL 1.7.2
sources I see, that the WriteHeader() method of sagadataset.cpp is using
GInt16 nXSize, GInt16 nYSize
Most likely this should be changed to
int nXSize, int nYSize
Best regards,
Volker
Am 06.01.2011 10:48, schrieb
Markus Neteler schrieb:
2010/4/2 weixj2003ld weixj200...@163.com:
Hi
Could you tell me some open source softwares(base on windows) that can
display geotiff files in 3D mode not in 2D mode?
GRASS GIS has the NVIZ 3D viewer included:
http://grass.osgeo.org/screenshots/viz.php
Download
