I am trying to import a raster map using r.in.gdal. The map was previously georeferenced in Q-GIS. When I run r.in.gdal, I receive the message that the projection of dataset does not appear to match current location.
I used the location parameter to create a new location for the scanned map. When I attempted to re-project the map from my new location into my intended GRASS location, I received the following error:
Unable to get projection info of input map.
Looking at the projection information, the projection for the scanned map and for my GRASS location match, with the exception of the cellhd.proj parameter. The scanned map’s cellhd.proj = 0 (unreferenced/unknown).
I’m not familiar with the function of the cellhd.proj. Could someone shed some light on how I might be able to resolve the issue?
On Sun, Sep 5, 2010 at 10:50 AM, David Kindem <dkindem@gmail.com> wrote:
Hello,
I am trying to import a raster map using r.in.gdal. The map was previously georeferenced in Q-GIS. When I run r.in.gdal, I receive the message that the projection of dataset does not appear to match current location.
I used the location parameter to create a new location for the scanned map. When I attempted to re-project the map from my new location into my intended GRASS location, I received the following error:
Unable to get projection info of input map.
Looking at the projection information, the projection for the scanned map and for my GRASS location match, with the exception of the cellhd.proj parameter. The scanned map’s cellhd.proj = 0 (unreferenced/unknown).
I’m not familiar with the function of the cellhd.proj. Could someone shed some light on how I might be able to resolve the issue?
The file is a .tif file with two associated files, a .wld and a tif.aux.xml.
Dave
David Kindem
On Sep 5, 2010, at 11:01 AM, kapo coulibaly wrote:
What format is the map in?
On Sun, Sep 5, 2010 at 10:50 AM, David Kindem <dkindem@gmail.com> wrote:
Hello,
I am trying to import a raster map using r.in.gdal. The map was previously georeferenced in Q-GIS. When I run r.in.gdal, I receive the message that the projection of dataset does not appear to match current location.
I used the location parameter to create a new location for the scanned map. When I attempted to re-project the map from my new location into my intended GRASS location, I received the following error:
Unable to get projection info of input map.
Looking at the projection information, the projection for the scanned map and for my GRASS location match, with the exception of the cellhd.proj parameter. The scanned map’s cellhd.proj = 0 (unreferenced/unknown).
I’m not familiar with the function of the cellhd.proj. Could someone shed some light on how I might be able to resolve the issue?
I believe the wld is a world file, all it has is the coordinate but not the projection infos (not sure about the xml file though). I would suggest you create a dummy GRASS mapset with the projection your tif file was georeferenced at, then use r.proj to import it in your intended location. let me know if I missed the point you were trying to make.
On Sun, Sep 5, 2010 at 11:20 AM, David Kindem <dkindem@gmail.com> wrote:
The file is a .tif file with two associated files, a .wld and a tif.aux.xml.
Dave
David Kindem
On Sep 5, 2010, at 11:01 AM, kapo coulibaly wrote:
What format is the map in?
On Sun, Sep 5, 2010 at 10:50 AM, David Kindem <dkindem@gmail.com> wrote:
Hello,
I am trying to import a raster map using r.in.gdal. The map was previously georeferenced in Q-GIS. When I run r.in.gdal, I receive the message that the projection of dataset does not appear to match current location.
I used the location parameter to create a new location for the scanned map. When I attempted to re-project the map from my new location into my intended GRASS location, I received the following error:
Unable to get projection info of input map.
Looking at the projection information, the projection for the scanned map and for my GRASS location match, with the exception of the cellhd.proj parameter. The scanned map’s cellhd.proj = 0 (unreferenced/unknown).
I’m not familiar with the function of the cellhd.proj. Could someone shed some light on how I might be able to resolve the issue?
You don't need to create different location if that GeoTIFF has same
coordinate system as Your current GRASS location. Just use r.in.gdal
override flag to import it without checking coordinate system match.
Remember - source and destination MUST have identical coordinate
systems (except for extent).
Maris.
2010/9/5, kapo coulibaly <kmcoulib@gmail.com>:
I believe the wld is a world file, all it has is the coordinate but not the
projection infos (not sure about the xml file though). I would suggest you
create a dummy GRASS mapset with the projection your tif file was
georeferenced at, then use r.proj to import it in your intended location.
let me know if I missed the point you were trying to make.
On Sun, Sep 5, 2010 at 11:20 AM, David Kindem <dkindem@gmail.com> wrote:
The file is a .tif file with two associated files, a .wld and a
tif.aux.xml.
Dave
David Kindem
On Sep 5, 2010, at 11:01 AM, kapo coulibaly wrote:
What format is the map in?
On Sun, Sep 5, 2010 at 10:50 AM, David Kindem <dkindem@gmail.com> wrote:
Hello,
I am trying to import a raster map using r.in.gdal. The map was
previously georeferenced in Q-GIS. When I run r.in.gdal, I receive the
message that the projection of dataset does not appear to match current
location.
I used the location parameter to create a new location for the scanned
map. When I attempted to re-project the map from my new location into my
intended GRASS location, I received the following error:
Unable to get projection info of input map.
Looking at the projection information, the projection for the scanned map
and for my GRASS location match, with the exception of the cellhd.proj
parameter. The scanned map's cellhd.proj = 0 (unreferenced/unknown).
I'm not familiar with the function of the cellhd.proj. Could someone
shed
some light on how I might be able to resolve the issue?
You don’t need to create different location if that GeoTIFF has same
coordinate system as Your current GRASS location. Just use r.in.gdal
override flag to import it without checking coordinate system match.
Remember - source and destination MUST have identical coordinate
systems (except for extent).
I believe the wld is a world file, all it has is the coordinate but not the
projection infos (not sure about the xml file though). I would suggest you
create a dummy GRASS mapset with the projection your tif file was
georeferenced at, then use r.proj to import it in your intended location.
let me know if I missed the point you were trying to make.
On Sun, Sep 5, 2010 at 11:20 AM, David Kindem <dkindem@gmail.com> wrote:
The file is a .tif file with two associated files, a .wld and a
tif.aux.xml.
Dave
David Kindem
On Sep 5, 2010, at 11:01 AM, kapo coulibaly wrote:
What format is the map in?
On Sun, Sep 5, 2010 at 10:50 AM, David Kindem <dkindem@gmail.com> wrote:
Hello,
I am trying to import a raster map using r.in.gdal. The map was
previously georeferenced in Q-GIS. When I run r.in.gdal, I receive the
message that the projection of dataset does not appear to match current
location.
I used the location parameter to create a new location for the scanned
map. When I attempted to re-project the map from my new location into my
intended GRASS location, I received the following error:
Unable to get projection info of input map.
Looking at the projection information, the projection for the scanned map
and for my GRASS location match, with the exception of the cellhd.proj
parameter. The scanned map’s cellhd.proj = 0 (unreferenced/unknown).
I’m not familiar with the function of the cellhd.proj. Could someone
shed
some light on how I might be able to resolve the issue?