2009/11/20 Yong Li yong...@unimelb.edu.au:
Dear all folks,
I was informed in the 6th Digital Earth Conference that there is a better
place to acquire high resolution of global DEM developed by ASTER, called
GDEM with 30 m resolution, and fantastically free of charge. I tried some
here
Hello,
I am receiving a bizarre error recently:
Erreur dans write.asciigrid(data_int_ked[1], name1) :
Asciigrid does not support grids with non-square cells
I do not understand this as I am putting interpolated data back into the cells
of an ascii DTM grid with square cells. Information on
On Friday 20 November 2009 07:09:35 Barry Rowlingson wrote:
2009/11/20 Yong Li yong...@unimelb.edu.au:
Dear all folks,
I was informed in the 6th Digital Earth Conference that there is a better
place to acquire high resolution of global DEM developed by ASTER, called
GDEM with 30 m
Hi all,
FYI: I've run a small comparison between ASTER DEM and LIDAR DEMs (say 'true'
topography):
http://geomorphometry.org/content/gdem-quick-assessment
The 4 case studies can be downloaded from here:
http://geomorphometry.org/system/files/GDEM_assessment.zip
I'm not too happy with what
On Fri, 20 Nov 2009 16:53:15 +0100 Tomislav Hengl he...@spatial-
analyst.net wrote:
The 4 case studies can be downloaded from here:
http://geomorphometry.org/system/files/GDEM_assessment.zip
GDEM is a frankestein - once you zoom in and add some shading,
The maps with shading look quite
Shouldn't this:
write.asciigrid(data_int_ked[1], name1)
be:
write.asciigrid(data_int_ked, name1)
I think you are writing a single cell, which in this case could be
interpreted as rectangular (if it covers the full grid)
On Fri, Nov 20, 2009 at 6:06 AM, Tobin Cara cara.to...@epfl.ch wrote:
Alan,
You can have a look at the code in the raster package on R-forge (see
the writeGDAL function). Or perhaps use this package: one of the
primary reasons for developing it was to automate (and hide) block by
block raster processing --- and quite successfully, it is being used
to process raster
I am trying to export a SpatialPixelsDataFrame object with floating
point values to an ASCII grid file and want to specify a nodata value. I
tried write.asciigrid from the sp package and I couldn't figure out how
to output float values. The pixel values exported as integers.
For now I am
