Hi,
I have used the (OSGeo4W) GDALWARP command to warp some height data image
files (NTv2 transformation). When displaying one warped height data in our
own application, there appear to be visible tiles on the image and some
misalignments exist between those square tiles (chunks).
After
http://osgeo-org.1803224.n2.nabble.com/file/n6749062/gdalwarp_chunk_problem.doc
gdalwarp_chunk_problem.doc
The attached file did not seem to be uploaded, so here it is.
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Chris,
Try passing gdalwarp -et 0.0
I am also suspicious of doing compression with the warp. you might want
to do that as a second step
Brian
On Wed, 2011-08-31 at 23:16 -0700, heng.feng wrote:
Hi,
I have used the (OSGeo4W) GDALWARP command to warp some height data image
files (NTv2
Thanks for your prompt reply, Brian.
I did try GDALWARP command on the same height data without the compression
option and the tiling effect still exists, but I will try the option -et 0.0
and let you know it goes.
BR,
Chris
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Tried the -et 0.0 option with no luck :(
Any other idea about how to get rid of this tiling effect?
Thanks,
Chris
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Chris
have you tryed other kernels? cubic, etc..
read this too
http://www.gdal.org/structGDALWarpOptions.html#0ed77f9917bb96c7a9aabd73d4d06e08
perhaps someone else may have other ideas.
Brian
On Wed, 2011-08-31 at 23:58 -0700, heng.feng wrote:
Tried the -et 0.0 option with no luck :(
Any
Thanks for the link, Brian. I will take a look at it.
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I-View:
On 31/08/2011 23:28, Even Rouault wrote:
... But it was easy to also support
/dev/stdout as an alias for /vsistdout/. Added in r23016.
Works as expected. Thanks for your time. Hermann
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Hello,
Thanks Even! I did not test it yet, I will see between ecwhed and the python
script you wrote.
Le jeudi 01 septembre 2011 01:56:04, Pinner, Luke a écrit :
Does this apply to the 4.x read-only version of the ERDAS ECW/JP2 SDK as
well as the old 3.3 SDK?
good question :)
Y.
--
Yves
Developing on a code which relies on ogr.py and that has been running for a
while on Ubuntu 10.04, 10.10 and 11.04 I saw for the first time today the
error
ERROR 1: No such field: 'CONTENTS_DAMAGE_fraction'
ERROR 1: No such field: 'STRUCT_INUNDATED'
ERROR 1: No such field: 'STRUCT_LOSS_AUD'
Le mercredi 31 août 2011 16:45:09, Jean-Claude Repetto a écrit :
Le 31/08/2011 14:13, Yves Jacolin a écrit :
Another question: I have 2 000 ECW files (40 Mo each), 49 ECW files (1 Go
each) and 2 ECW files (2 Go each). I worked first on 2 Go ECW file, it
takes around 1 day to assign the
Le jeudi 01 septembre 2011 10:39:50, Yves Jacolin a écrit :
Le mercredi 31 août 2011 16:45:09, Jean-Claude Repetto a écrit :
Le 31/08/2011 14:13, Yves Jacolin a écrit :
Another question: I have 2 000 ECW files (40 Mo each), 49 ECW files (1
Go each) and 2 ECW files (2 Go each). I worked
Hi! Sorry for my English. I trying read s-57 files by OGR. But its parsing
into geometry layers (points, lines e.t.c.) instead objects (DEPARE, COALNE
e.t.c.). CSV files drop into *.exe directory.
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On 01/09/2011 00:28, Even Rouault wrote:
Le jeudi 01 septembre 2011 00:19:52, Elijah Robison a écrit :
ogr2ogr -f GML /vsistdout/
C:\xData\CountyUpdate\GeoFix\feb16_polygons.shp -sql select * from
feb16_polygons where objectid= 2126
ogr2ogr -f KML /vsistdout/
Sorry for the addition, but regarding the issue with SetField, I just had
the same error with the inputs
SetField('STRUCT_DAMAGE_fraction', 0.346734256639)
To repeat, this works on every standard Ubuntu installation I have used
(10.04, 10.10, 11.04). However, after installing qgis 1.7 on Ubuntu
Hi all,
I got following error-message while using gdalwarp:
ERROR 6: Failed to initialize PROJ.4 with `+proj=merc+a=6378137 +b=6378137
+lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m+nadgri...@null
+wktext +no_defs'.
Situation:
I've installed GDAL 1.4.4, because the CentOS on the server
Hi Marco,
it's look like only a typo. Put a space between +proj=merc +a=6378137
Gr
Ralf
On Donnerstag 01 September 2011 12:32:27 Marco Scheuble wrote:
Hi all,
I got following error-message while using gdalwarp:
ERROR 6: Failed to initialize PROJ.4 with `+proj=merc+a=6378137 +b=6378137
hi Ralf,
thanks for your answer, but unfortunately I got the same error-message.
Failed to initialize PROJ.4 with `+proj=merc +a=6378137 +b=6378137
+lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m+nadgri...@null
+wktext +no_defs'
Marco
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About the GML driver:
I was just wondering where the .xsd file is written to when using:
ogr2ogr -f gml /vsistdout/. According to the gml file's
xsi:schemaLocation attribute, the schema file is `.xsd', see [1]. I
can't find `.xsd' locally.
When using /dev/stdout rather than /vsistdout/, I
Marco Scheuble mail at marco-scheuble.de writes:
hi Ralf,
thanks for your answer, but unfortunately I got the same error-message.
Failed to initialize PROJ.4 with `+proj=merc +a=6378137 +b=6378137
+lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m+nadgri...@null
hey Jukka an Ralf,
great work, that solved my problem :-)
thanks a lot, cheers, Marco
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Le jeudi 01 septembre 2011 01:56:04, Pinner, Luke a écrit :
Does this apply to the 4.x read-only version of the ERDAS ECW/JP2 SDK as
well as the old 3.3 SDK?
I've just commited a new changeset. Now the support for updating the header info
has been successfully tested on Linux 64bit with 3.3
I know why raster data made by GDAL show RAW string as projection
information, documentation explain it:
When writing coordinate system information to ECW files, many less common
coordinate systems are not mapped properly. If you know the ECW name for
the
coordinate system you can force
Selon Ole Nielsen ole.moller.niel...@gmail.com:
Sorry for the addition, but regarding the issue with SetField, I just had
the same error with the inputs
SetField('STRUCT_DAMAGE_fraction', 0.346734256639)
To repeat, this works on every standard Ubuntu installation I have used
(10.04, 10.10,
Le 01/09/2011 12:32, Marco Scheuble a écrit :
GDAL 1.4.4 doesn't support EPSG:900913, so I added the following lines to
'cubewerx_extra.wkt':
#
# EPSG:900913
#
900913,PROJCS[Google Maps Global
I am still stuck. Any more ideas? Thanks.
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On 01/09/2011 13:33, Even Rouault wrote:
But yes, it lacks the special case to recognize /dev/stdout as a particular
value where you must not try to write a file, which would avoid error [2].
Ticket created at http://trac.osgeo.org/gdal/ticket/4225
Yes we probably lack consistency in that
On 11-09-01 02:45 AM, andval wrote:
Hi! Sorry for my English. I trying read s-57 files by OGR. But its parsing
into geometry layers (points, lines e.t.c.) instead objects (DEPARE, COALNE
e.t.c.). CSV files drop into *.exe directory.
Andval,
This indicates that the S57 CSV files with the
Hi,
i got a question on using the gdal_grid utility:
My input file looks like:
lat,lon,data
24.007521,-114.111420,-0.078077
24.003864,-114.064293,-0.017523
24.000221,-114.017540,-0.069692
23.996593,-113.971153,-0.014572
23.992981,-113.925117,-0.032931
23.989380,-113.879440,-0.068089
Hello,
Does anyone know how I would get a 3x3 minute box of coords with gdal given the
south west corner coord?
Preferably using either C or Java.
Thanks,
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On 01/09/2011 14:23, Even Rouault wrote:
As I did not use DATUM and PROJ creation option GDAL don't add it!
Yes, the mapping between WKT representation and ECW DATUM/PROJ is not perfect,
especially in the WKT - DATUM/PROJ direction (the other direction is simpler).
You could perhaps try the
I failed in finding a programatic way of updating the attributes of an ESRI
Shapefile feature (using Ruby 1.9.x on OSX Lion) therefore I wonder if I can
use GDAL to accomplish this task.
Let's say I have a CSV file containing the fields/rows that I want to update
and an ESRI shapefile with the
Le jeudi 01 septembre 2011 19:29:58, vasile a écrit :
I failed in finding a programatic way of updating the attributes of an ESRI
Shapefile feature (using Ruby 1.9.x on OSX Lion) therefore I wonder if I
can use GDAL to accomplish this task.
Let's say I have a CSV file containing the
Hi,
i would like be able to make use of GDALGridCreate() in my python code.
Since it has not been mapped to python i'd like to do that myself. I
don't have experience with this though, so i am looking for some
direction on how to get started. I read up a little on it and i think i
understand the
Nevermind, i got confused. Downloaded the wrong code.
Sorry about that.
matt
On 9/1/2011 12:15 PM, Matt Funk wrote:
Hi,
i would like be able to make use of GDALGridCreate() in my python
code. Since it has not been mapped to python i'd like to do that
myself. I don't have experience with this
Hey All,
www.spatialreference.org is down right now (/The server is temporarily
unable to service your request due to maintenance downtime or capacity
problems. Please try again later./) . Anyone know if this a glitch or
something more permanent?
thanks,
--
matt wilkie
Hello
I am working in a project using Erdas Apollo Server, I have to build a excel
report from a .img file but I dont know how to get the pixel data from the
image.
I was trying using GDALImageReader class from
imageio-ext-gdalerdasimg-1.1.1.jar but I dont know how use it, I would
appreciate if
Thank you very much for replying.
The output I got from you suggestion is
nielso@shakti:~$ dpkg -l|grep gdal
ii gdal-bin
1.8.0-2~natty2 Geospatial Data Abstraction
Library - Utility programs
ii libgdal1-1.6.0
1.6.3-4build3 Geospatial Data
Ole,
Is there a way of telling which one I am using (both when running
commandline org2org and when importing the ogr module in python)?
ogr2ogr --version will work on the command line for at least the major version
number. I'm not sure about in python.
HTH, Eli
Cheers and thanks
Ole
Many thanks for the reply, but I need the Python bindings as we are using
ogr deeply embedded in an application and creating of new layers using the
SetField command (amongst others) is critical. Hence my worry when we get
the error
NotImplementedError: Wrong number of arguments for overloaded
On 09/01/2011 08:23 PM, Ole Nielsen wrote:
Many thanks for the reply, but I need the Python bindings as we are
using ogr deeply embedded in an application and creating of new layers
using the SetField command (amongst others) is critical. Hence my
worry when we get the error
good idea, thanks. However, it appears that qgis 1.7 is the one that depends
on gdal 1.6. I am confused.
(riab_env)nielso@shakti:~/dev$ sudo dpkg --purge libgdal1-1.6.0
dpkg: dependency problems prevent removal of libgdal1-1.6.0:
libqgis1.7.0 depends on libgdal1-1.6.0.
qgis-providers depends on
Hi all,
I would like to setup a git repository of a subset of gdal (the netcdf
driver) and I would like to know the best solution.
1) the full git-svn sync as explained in
http://trac.osgeo.org/gdal/wiki/UsingGitToMaintainGDALWorkflow
It works, but overkill for my needs.
2) just setup a small
On Sep 1, 2011, at 2:37 PM, ext Matt Wilkie wrote:
Hey All,
www.spatialreference.org is down right now (/The server is temporarily unable
to service your request due to maintenance downtime or capacity problems.
Please try again later./) . Anyone know if this a glitch or something more
From personal experience (and others') you get some odd error messages
when you start mixing different versions of libgdal. I would expect the
error to go away if you stick to one version of libgdal. Ubuntu-GIS
should have all the packages you need without having to mix GDAL versions.
-marius
Thank you for your help, Frank. Then i acquire object-layer oriented model i
can`t define geometry type for feature, becouse some objects have several of
geometry types. But ogrinfo defined geom type for feture and write POLYGON,
LINESTRING, e.t.c. I find, that for each geom type correspond one
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