Hello BCers,

I want to use "gpt Subset" to extract subsets from MERIS data with the command line. This is the command I am using

beam-4.8/bin> ./gpt.sh launch_Subset.xml -Ssource=/all_mounts/masp25/luis/GFZ_data_MERIS_N1s/MER_FR__1PNEPA20070710_104159_000000982059_00409_28018_1441.dim

with

launch_subset.xml being

<graph id="launch_Subset">
<version>1.0</version>
<node id="subset">
<operator>Subset</operator>
<sources>
<source>${source}</source>
</sources>
<parameters>
<region>
<x>1</x>
<y>1</y>
<width>100</width>
<height>100</height>
</region>
<subSamplingX>1</subSamplingX>
<subSamplingY>1</subSamplingY>
<tiePointGridNames>"sun_zenith,sun_azimuth,view_zenith,view_azimuth,latitude,longitude"</tiePointGridNames>
<bandNames>"radiance_1"</bandNames>
<copyMetadata>true</copyMetadata>
</parameters>
</node>
</graph>

With this setup I get the following error message


SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/people/luis/beam-4.8/lib/slf4j-jdk14-1.5.8.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/people/luis/beam-4.8/modules/lib-netcdf-4.0/lib/slf4j-jdk14-1.5.8.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.

Error: Index: 0, Size: 0


The SLF4J lines do not appear sometimes for some reason.

Any help? I am sorry if the information is already there in the forum and I have overseen it (most probably ).

Thanks a lot in advance!

Luis

There is more to it that that.
The flags still missing on the right are:
<bandNames>radiance_1,l1_flags</bandNames>

¡Hola Luis!

I have not investigated yet why the '-t' option does not yield the expected result, but you can use the following workaround, which adds a write node to the graph XML:


<graph id="makeSubset">
<version>1.0</version>

<node id="subset">
<operator>Subset</operator>
<sources>
<source>${sourceFile}</source>
</sources>
<parameters>
<!-- your parameters here -->
</parameters>
</node>

<node id="write">
<operator>Write</operator>
<sources>
<source refid="subset"/>
</sources>
<parameters>
<file>${targetFile}</file>
<deleteOutputOnFailure>true</deleteOutputOnFailure>
<!-- additional parameters here -->
</parameters>
</node>

</graph>


And then specify the targetFile using the -P option of gpt.

Hello Ralf,

first of all I apologize that you had to wait for such a long time for an answer. Thinks have been very busy the last weeks.

To specify the target name please use the -t option.
You command should look like the following:
./gpt.sh launch_Subset.xml -Ssource=f_name.dim -t t_name.dim

To get help regarding the usage of gpt you can type:
./gpt.sh -h

Thanks for your patience.

best wishes Marco