Import different PDS3 levels with GDAL in Python
I am working on a project in python where I need to import PDS3 (Planetary Data System) files. So far, the only package/program that I found that is able to import these files is GDAL. I managed to get it to work, but currently, it only imports the base layer/level of the image.
I am using these commands:
ds = gdal.Open('pdsfile.IMG')
img = ds.ReadAsArray()
How can I access the the other layers included in the PDS file? In my case for example, I know there are 8 more levels which I can examine in an external PDS viewer.
I have python 3.5.6 (anaconda) and GDAL 2.2.2 installed (via pip install GDAL).
python import layer gdal
asked Nov 21 '18 at 13:57
mapfmapf
236
|
show 3 more comments
I am working on a project in python where I need to import PDS3 (Planetary Data System) files. So far, the only package/program that I found that is able to import these files is GDAL. I managed to get it to work, but currently, it only imports the base layer/level of the image.
I am using these commands:
ds = gdal.Open('pdsfile.IMG')
img = ds.ReadAsArray()
How can I access the the other layers included in the PDS file? In my case for example, I know there are 8 more levels which I can examine in an external PDS viewer.
I have python 3.5.6 (anaconda) and GDAL 2.2.2 installed (via pip install GDAL).
python import layer gdal
asked Nov 21 '18 at 13:57
mapfmapf
236
First check ds.GetLayerCount() result so that I can give you an answer.
– lusitanica
Nov 21 '18 at 16:13
ds.GetLayerCount() returns 0.
– mapf
Nov 22 '18 at 10:50
I was expecting 7. GetLayerCount() starts counting at 0.
– lusitanica
Nov 22 '18 at 19:33
I see. In the PDS file header there is a list of pointers to the "data objects" (i.e. the layers). Would that help in any way?
– mapf
Nov 23 '18 at 8:39
Since there are 2 versions for PDS and you didn't specify the one you're using, for PDS4 you should be reading a .xml companion file instead of the raw data, and for PDS3 you should be reading a .lbl companion file instead of .img file.
– lusitanica
Nov 23 '18 at 9:32
|
show 3 more comments
I am working on a project in python where I need to import PDS3 (Planetary Data System) files. So far, the only package/program that I found that is able to import these files is GDAL. I managed to get it to work, but currently, it only imports the base layer/level of the image.
I am using these commands:
ds = gdal.Open('pdsfile.IMG')
img = ds.ReadAsArray()
How can I access the the other layers included in the PDS file? In my case for example, I know there are 8 more levels which I can examine in an external PDS viewer.
I have python 3.5.6 (anaconda) and GDAL 2.2.2 installed (via pip install GDAL).
python import layer gdal
asked Nov 21 '18 at 13:57
mapfmapf
236
I am working on a project in python where I need to import PDS3 (Planetary Data System) files. So far, the only package/program that I found that is able to import these files is GDAL. I managed to get it to work, but currently, it only imports the base layer/level of the image.
I am using these commands:
ds = gdal.Open('pdsfile.IMG')
img = ds.ReadAsArray()
How can I access the the other layers included in the PDS file? In my case for example, I know there are 8 more levels which I can examine in an external PDS viewer.
I have python 3.5.6 (anaconda) and GDAL 2.2.2 installed (via pip install GDAL).
python import layer gdal
python import layer gdal
asked Nov 21 '18 at 13:57
mapfmapf
236
asked Nov 21 '18 at 13:57
mapfmapf
236
edited Nov 23 '18 at 12:08
mapf
asked Nov 21 '18 at 13:57
mapfmapf
236
asked Nov 21 '18 at 13:57
mapfmapf
236
asked Nov 21 '18 at 13:57
mapfmapf
236
236
First check ds.GetLayerCount() result so that I can give you an answer.
– lusitanica
Nov 21 '18 at 16:13
ds.GetLayerCount() returns 0.
– mapf
Nov 22 '18 at 10:50
I was expecting 7. GetLayerCount() starts counting at 0.
– lusitanica
Nov 22 '18 at 19:33
I see. In the PDS file header there is a list of pointers to the "data objects" (i.e. the layers). Would that help in any way?
– mapf
Nov 23 '18 at 8:39
Since there are 2 versions for PDS and you didn't specify the one you're using, for PDS4 you should be reading a .xml companion file instead of the raw data, and for PDS3 you should be reading a .lbl companion file instead of .img file.
– lusitanica
Nov 23 '18 at 9:32
|
show 3 more comments
First check ds.GetLayerCount() result so that I can give you an answer.
– lusitanica
Nov 21 '18 at 16:13
ds.GetLayerCount() returns 0.
– mapf
Nov 22 '18 at 10:50
I was expecting 7. GetLayerCount() starts counting at 0.
– lusitanica
Nov 22 '18 at 19:33
I see. In the PDS file header there is a list of pointers to the "data objects" (i.e. the layers). Would that help in any way?
– mapf
Nov 23 '18 at 8:39
Since there are 2 versions for PDS and you didn't specify the one you're using, for PDS4 you should be reading a .xml companion file instead of the raw data, and for PDS3 you should be reading a .lbl companion file instead of .img file.
– lusitanica
Nov 23 '18 at 9:32
First check ds.GetLayerCount() result so that I can give you an answer.
– lusitanica
Nov 21 '18 at 16:13
First check ds.GetLayerCount() result so that I can give you an answer.
– lusitanica
Nov 21 '18 at 16:13
ds.GetLayerCount() returns 0.
– mapf
Nov 22 '18 at 10:50
ds.GetLayerCount() returns 0.
– mapf
Nov 22 '18 at 10:50
I was expecting 7. GetLayerCount() starts counting at 0.
– lusitanica
Nov 22 '18 at 19:33
I was expecting 7. GetLayerCount() starts counting at 0.
– lusitanica
Nov 22 '18 at 19:33
I see. In the PDS file header there is a list of pointers to the "data objects" (i.e. the layers). Would that help in any way?
– mapf
Nov 23 '18 at 8:39
I see. In the PDS file header there is a list of pointers to the "data objects" (i.e. the layers). Would that help in any way?
– mapf
Nov 23 '18 at 8:39
Since there are 2 versions for PDS and you didn't specify the one you're using, for PDS4 you should be reading a .xml companion file instead of the raw data, and for PDS3 you should be reading a .lbl companion file instead of .img file.
– lusitanica
Nov 23 '18 at 9:32
Since there are 2 versions for PDS and you didn't specify the one you're using, for PDS4 you should be reading a .xml companion file instead of the raw data, and for PDS3 you should be reading a .lbl companion file instead of .img file.
– lusitanica
Nov 23 '18 at 9:32
|
show 3 more comments
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First check ds.GetLayerCount() result so that I can give you an answer.
– lusitanica
Nov 21 '18 at 16:13
ds.GetLayerCount() returns 0.
– mapf
Nov 22 '18 at 10:50
I was expecting 7. GetLayerCount() starts counting at 0.
– lusitanica
Nov 22 '18 at 19:33
I see. In the PDS file header there is a list of pointers to the "data objects" (i.e. the layers). Would that help in any way?
– mapf
Nov 23 '18 at 8:39
Since there are 2 versions for PDS and you didn't specify the one you're using, for PDS4 you should be reading a .xml companion file instead of the raw data, and for PDS3 you should be reading a .lbl companion file instead of .img file.
– lusitanica
Nov 23 '18 at 9:32