http://hdfeos.org/forums/ This is a HDF-EOS discussion forum powered by vBulletin. To find out about vBulletin, go to http://www.vbulletin.com/ . en Tue, 18 Jun 2013 17:10:32 GMT vBulletin 1440 http://hdfeos.org/forums/images/misc/rss.jpg http://hdfeos.org/forums/ http://hdfeos.org/forums/showthread.php?t=590&goto=newpost Fri, 14 Jun 2013 16:57:11 GMT We're pleased to announce that the H4CF Conversion Toolkit 1.0.beta release is now available and can be downloaded from the following page:

http://hdfeos.org/software/h4cflib.php

The new version has many new features:

API Name Change
---------------
- Some attribute-related APIs are shortened. For example,
h4cf_get_var_attr_type() has been reduced to h4cf_get_attr_typ()e since
we also support the retrieval of file attribute type in this release.

Vdata handling
--------------
- In the previous version, vdata attribute values, vdata field values and vdata
field attribute values are translated to string. This mapping is not right.
Now original vdata data and attribute values will be kept.
- Since there are no equivalent vdata objects in the h4cf output, to conform
to the netCDF classic model, the vdata attributes will be mapped to file
attributes and the vdata field attributes will be mapped to variable
attributes.

Unsigned Data Type
------------------
- h4tonccf improved the handling of unsigned data type. If NetCDF-3 output
is desired, unsigned int8 and int16 type will be up-scaled to int16 and
int32 type respectively.

Test suite
----------
- A test suite with sample data files and API test programs is added.
- Users can download and test conversion tool with sample NASA data.

Examples
--------
- More file-type-specific examples are provided.
- An NcML example is added for post-editing the converted NetCDF file.


The new version also includes many bug fixes in both library and conversion:

- The -O0 compiler option is no longer necessary.
- Memory leaks are checked with valgrind and leaking problems are fixed.
- HDF-EOS2 Grids that use the LAMAZ projection are supported.
- Type mismatch problem between CF attributes and variable type is fixed.
- h4cf_get_file_attrs() returns the list of attributes instead of string map.
This will allow to write attributes with different types, not just string.
- Bugs related to subsetting vdata field values are fixed.
- The conversion tool doesn't insert an arbitrary _FillValue attribute that
doesn't exist in the original file.
- Name clashing routines are updated when handling HDF4 products. Now the name
clashing is more robust and the original object names will be used to generate
the final CF-compliant variable names if no name clashing is found.
- The name clashing issue related to the hybrid HDF-EOS2 objects has been
fixed.
- A few critical bugs have been fixed related to making MODIS scale
and offset and valid_range attributes to follow CF. Now MODIS products in
our testsuite are translated to conform to CF conventions.


This release contains many other changes that are not listed here.
Please be sure to read the release document for a comprehensive list of new
features and changes:

http://hdfeos.org/software/h4cflib/doc/RELEASE.txt ]]> News and Announcements hyoklee http://hdfeos.org/forums/showthread.php?t=590 http://hdfeos.org/forums/showthread.php?t=589&goto=newpost Wed, 12 Jun 2013 15:07:57 GMT A user reported that our IDL code for TRMM L2 doesn't work for the new TRMM L2 version 7 products.

Upon further inspection, we've found that the version 7 has separate 2-D SDS dataset for latitude and longitude. The version 6 has only one SDS dataset called geolocation that covers both latitude and longitude as 3-D array.

Thus, we added new NCL/MATLAB/IDL codes for TRMM L2 version 7 products and you can find them here:

http://hdfeos.org/zoo/index_openGESD...ples.php#TRMM7

Please keep us informed about new NASA HDF products! ]]> Others hyoklee http://hdfeos.org/forums/showthread.php?t=589 http://hdfeos.org/forums/showthread.php?t=588&goto=newpost Fri, 17 May 2013 14:35:22 GMT The HDF Group is going to start a pilot project of creating a tool that converts HDF to GeoTIFF through Apache Incubator project. Conversion to... The HDF Group is going to start a pilot project of creating a tool that converts HDF to GeoTIFF through Apache Incubator project. Conversion to GeoTIFF will allow you to visualize NASA HDF/HDF-EOS through popular GIS tools such as ArcGIS and Google Earth Pro. We're writing a new proposal for the tool and we're looking for a developer who can contribute for the project:

http://wiki.apache.org/incubator/HotdoGProposal

If you're interested in joining the project, would you please let us
know so that we can include your name in the project proposal? Feel free to contact us through eoshelp@hdfgroup.org.

Thanks! ]]> News and Announcements hyoklee http://hdfeos.org/forums/showthread.php?t=588 http://hdfeos.org/forums/showthread.php?t=587&goto=newpost Thu, 16 May 2013 14:14:04 GMT We made a 64-bit version of eos2dump static binary and uploaded it here: http://hdfeos.org/software/eosdump/bin/linux64/ SHA256 has the... We made a 64-bit version of eos2dump static binary and uploaded it here:

http://hdfeos.org/software/eosdump/bin/linux64/

SHA256 has the checksum information.

After you download it, you can verify the checksum using

%sha256sum eos2dump

The binary is built on CentOS 5 (x86_64). ]]> Local Access hyoklee http://hdfeos.org/forums/showthread.php?t=587 http://hdfeos.org/forums/showthread.php?t=586&goto=newpost Mon, 15 Apr 2013 07:12:29 GMT Good morning,

First of all, I'm sorry because I don't know if it's the right forum or section to post that question.

I don’t know where can I find gain and the bias offset of a MODIS image. The product I’m using is MOD09GA. I've heard that in MODIS images there are only gain values, no offset, but I don't know if this information is true.

Does somebody know where can I find it? Really thanks in advance! ]]> klipya http://hdfeos.org/forums/showthread.php?t=586 http://hdfeos.org/forums/showthread.php?t=585&goto=newpost Fri, 05 Apr 2013 23:47:31 GMT These presentations include the recent NASA HDF/HDF-EOS support from The HDF Group and the HDF-EOS developers. ... These presentations include the recent NASA HDF/HDF-EOS support from The HDF Group and the HDF-EOS developers.

http://hdfeos.org/briefing/2013/index.php ]]> Workshops hyoklee http://hdfeos.org/forums/showthread.php?t=585 http://hdfeos.org/forums/showthread.php?t=584&goto=newpost Tue, 26 Mar 2013 16:21:39 GMT We added the NCL/MATLAB/IDL examples of MEaSUREs WELD products: http://www.hdfeos.org/zoo/index_openLPDAAC_Examples.php#WELD For more... We added the NCL/MATLAB/IDL examples of MEaSUREs WELD products:

http://www.hdfeos.org/zoo/index_open...mples.php#WELD

For more information about WELD products, please refer to

http://globalmonitoring.sdstate.edu/projects/weld/

This product is quite interesting because it uses Albers projection. As you can see from our examples, dumping latitude/longitude in ASCII using HDF-EOS2 dumper tool results in huge text file (310M) for each, which is bigger than the HDF-EOS2 file itself. :eek: ]]> Others hyoklee http://hdfeos.org/forums/showthread.php?t=584