I am currently working on a driver for a proprietary format, which is being
consumed by ArcGis via GDAL.
These grids sometimes has a rotation with a specified pivot point. I
managed to get ArcGis to display the rotated grid by doing the following:
poDS-dGeoTransform[0] = originX;
I got a tiled dataset from a client, consisting of 8 jpegs + jpw's.
These are used in a .vrt, and I get the following error: IReadBlock failed
at X offset 0, Y offset 73.
I get the same errors when testing the .jpegs individually aswell. When
stepping into the GDAL code, I can see that the first
Whoever comes up with an idea to directly drive his app GUI with a
library such as
GDAL should leave his desk, go fishing for as long as it takes him to come
back
with solution on his app side.
Not sure what you mean by drive the app GUI here. I think the main point
here is to get metadata
Is it possible to specify multiple file extensions in GDAL_DMD_EXTENSION ?
I ask because I am working on a driver for a format that has several known
file extensions.
- Oyvind
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be beneficial to extend this definition for multiple
extensions separated by comma.
cheers
Etienne
On Tue, Feb 19, 2013 at 11:26 AM, Frank Warmerdam warmer...@pobox.com
wrote:
I am not aware of a way to list multiple extensions.
Best regards,
On Feb 19, 2013 2:15 AM, Oyvind Idland
People *usually* want a list of extensions so they can automatically
categorize the format of files on disk or to filter to only show
extensions they think GDAL supports. I find this practice abhorrent!
GDAL is based on the idea that file formats are discovered by
inspecting file contents
Hi Even,
thanks ! :)
- Oyvind
On Mon, Oct 1, 2012 at 11:26 PM, Even Rouault
even.roua...@mines-paris.orgwrote:
Le lundi 01 octobre 2012 16:07:15, Oyvind Idland a écrit :
Hello,
is it possible to force an SRS into a .vrt in some way, during creation ?
(except manually copying
Hello,
is it possible to force an SRS into a .vrt in some way, during creation ?
(except manually copying into the .vrt)
In my case, I got a tiled dataset in .jpeg, with no SRS information
attached. Since I know the projection,
I am looking for an -a_srs or similar.
- Oyvind
Hello,
i have a set of GeoTIFF tiles, that I want to reproject into a new set of
tiles.
So far I have the following strategy:
1) create a VRT from the existing tiles
2) make a script that creates new tiles, one by one using gdalwarp.
Is there a better way of doing this ?
- Oyvind
In case anybody else is trying this, my plan worked out well.
I found that doing it via a Python script was the best way, as I added some
code to
reproject the source extent to destination, calculating the new tiles etc.
-- Oyvind
On Fri, May 18, 2012 at 10:34 AM, Oyvind Idland oyvind.idl
,
Oyvind Idland
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Sorry, forget about that one, it seems to be fixed by now in trunk.
Thanks !
-- Oyvind
On Wed, May 16, 2012 at 10:10 AM, Oyvind Idland oyvind.idl...@gmail.comwrote:
Hello,
there is a minor bug in the filter submitted by WFS GET requests:
The wfs namespace is missing. The current
Even,
my bad, correct.. its ogc, not wfs.
-- Oyvind
On Wed, May 16, 2012 at 1:25 PM, Even Rouault
even.roua...@mines-paris.orgwrote:
Selon Oyvind Idland oyvind.idl...@gmail.com:
Sorry, forget about that one, it seems to be fixed by now in trunk.
Actually, this was already fixed in GDAL
There is another problem with the Filter in OGR when dealing with WFS
1.1.0:
The wfs namespace is missing. The current implementation sends
Filter xmlns:gml=http://www.opengis.net/gml;
but should be
Filter xmlns=http://www.opengis.net/wfs; xmlns:gml=
http://www.opengis.net/gml;
Since I am
I am currently using GDAL 1.8.0, and have found that reprojecting VRT
datasets can be incredibly
slow (several minutes in my case). I believe there are bugs/tickets related
to this issue.
I am only interested in reprojecting arbitrary datasets (or portions of it)
into a screen size window, on the
-paris.org
følgende:
Selon Oyvind Idland oyvind.idl...@gmail.com:
I am currently using GDAL 1.8.0, and have found that reprojecting VRT
datasets can be incredibly
slow (several minutes in my case). I believe there are bugs/tickets
related
to this issue.
I am only interested in reprojecting
Hello,
I am fiddling with some old scanned (handmade) maps. In order to reduce the
size of the data, and since
the maps has a limited amount of colors, i figured that using palettized
8BPP tiffs would be suitable in this
case.
I got several tiles that make up the whole area, using rgb(0,0,0) as
value is
the index of the color component to extract : 1 for the red band, 2 for the
green band, 3 for the blue band or 4 for the alpha band.
[1]: http://www.gdal.org/gdal_vrttut.html
On Wed, Apr 11, 2012 at 1:27 PM, Oyvind Idland oyvind.idl...@gmail.comwrote:
Hello,
I am fiddling
How do I get overviews to work with VRT datasets ?
What I do is
- creating a .vrt with additional alpha band + nodata using gdalbuildvrt
(wrapping an existing TIFF)
- creating overviews using gdaladdo. I then get an external .ovr file.
- creating a new TIFF from the VRT
First, it seems that
Ok, thanks, good to know.
-- oyvind
On Wed, Apr 4, 2012 at 3:24 PM, Dmitry Baryshnikov poli...@mail.ru wrote:
04.04.2012 16:57, Oyvind Idland написал:
How do I get overviews to work with VRT datasets ?
What I do is
- creating a .vrt with additional alpha band + nodata using gdalbuildvrt
?
To: Oyvind Idland oyvind.idl...@gmail.com
Hy,
you can use gdaladdo --config COMPRESS_OVERVIEW [DEFLATE | JPEG] to
create compressed overview.
And then you can use gdalbuildvrt or gdaltindex to build an index of the
files.
2012/4/2, Oyvind Idland oyvind.idl...@gmail.com:
Hello,
I got
Hello,
I got one problem: I have a bunch of uncompressed TIFF tiles, which I am
converting to compressed GeoTiff. I would
like to mask away the rgb(0,0,0) values.
However, when I use NODATA on my VRT dataset, there are JPEG artifacts
around the edges when rendering.
Is it possible to generate
at 5:26 PM, Oyvind Idland oyvind.idl...@gmail.comwrote:
Hello,
I got one problem: I have a bunch of uncompressed TIFF tiles, which I am
converting to compressed GeoTiff. I would
like to mask away the rgb(0,0,0) values.
However, when I use NODATA on my VRT dataset, there are JPEG artifacts
Hello,
I got a huge dataset consisting of about 100 uncompressed TIFF's, each with
size 12599 X 9449 pixels with RGB bands.
Note, that the TIFF's are not georef'ed, instead there are .tfw's following
each file. Also, since they are about 350 MB each,
I guess converting them to a compressed format
, so what you describe would be expected in that case.
*From:* gdal-dev-boun...@lists.osgeo.org [mailto:
gdal-dev-boun...@lists.osgeo.org] *On Behalf Of *Oyvind Idland
*Sent:* vendredi 13 mai 2011 04:28
*To:* gdal-dev@lists.osgeo.org
*Subject:* [gdal-dev] GDAL 1.8.0 and MrSid no-data values
Hi,
I just updated to 1.8.0 from 1.7, using the MrSid DSDK 8.0.
In order to handle transparency, i have until now used the metadata values
from IMAGE__NO_DATA_VALUE,
and simply masked away pixels.
After upgrading, the IMAGE__NO_DATA_VALUE yields nothing, neither is it
listed when using
But there are a few changes you would need to do in order to compile the
GDAL/ECW driver because the path and library names has changed.
Regards,
Ivan
---Original Message---
From: Oyvind Idland oyvind.idl...@gmail.com
To: gdal-dev@lists.osgeo.org
Subject: [gdal-dev
:\gdalinfo --format ecw
Format Details:
Short Name: ECW
Long Name: ERMapper Compressed Wavelets
Extension: ecw
Help Topic: frmt_ecw.html
C:\gdalinfo --version
GDAL 1.7.3, released 2010/11/10
Regards,
Ivan
---Original Message---
From: Oyvind Idland oyvind.idl
Hello,
i am compiling GDAL from source, and need the ECW as plugin.
The package is mentioned on the site, libecwj2-3.3-2006-09-06.zip, is this a
package
from ERDAS ? I tried to find some info about it on their site, but found
nothing..
I found a couple of other download links, so I can at least
.
Regards,
Oyvind Idland
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for future releases.
On Thu, Oct 28, 2010 at 4:21 PM, Oyvind Idland oyvind.idl...@gmail.comwrote:
Hello,
stumbled across a problem when reading MrSid:
The MrSid dataset contains 3 bands, R/G/B. None of the 3 bands gives me a
GetNoDataValue(),
however, the metadata contains
Hi,
i am fiddling around a bit with GDAL. I can successfully load GeoTIFF files
etc, but when trying with the WMS
driver, something strange happens:
Opening the example frmt_wms_onearth_global_mosaic.xml works fine. I query
for bands, and get 3.
When calling band-GetColorInterpretation(), I get
/CompoundCurve etc).
regards,
Oyvind Idland
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