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*************************
* JHelioviewer README *
*************************
Website: http://www.jhelioviewer.org/
About
-----
JHelioviewer is a visualization tool for solar physics data based on
the JPEG 2000 image compression standard. JPEG 2000 offers many useful
new features and has the potential to revolutionize the way high-
resolution image data are disseminated and analyzed. Using JPEG 2000,
we can serve data to a client in highly compressed, quality
progressive, and region-of-interest based form. These features make it
possible to minimize the data transmitted while maximizing the use of
the data that is transmitted. This is especially relevant for solar
physics since NASA's Solar Dynamics Observatory
(http://sdo.gsfc.nasa.gov/) is providing more than a terabyte of image
data per day. Providing efficient access to such large data volumes at
both high spatial and high time resolution is of paramount importance
to support scientific discovery.
JHelioviewer paper by Mueller et al.,
Computing Science and Engineering, 2009:
http://jhelioviewer.org/pub/Mueller+al_CiSE2009.pdf
Information about JPEG 2000
http://www.helioviewer.org/wiki/index.php?title=JPEG_2000
JHelioviewer is based on two separate projects:
- The JPEG2000 encoding/decoding algorithms are provided by
the Kakadu Software Development Kit:
http://www.kakadusoftware.com/
- The Java application has its origins in the J2KViewer project:
http://dltj.org/2006/10/gsoc-jpip/
Troubleshooting
-----------------
See http://www.helioviewer.org/wiki/index.php?title=JHelioviewer_Troubleshooting
Report A Problem Or Idea
------------------------
If you have a problem or an idea for an improvement please feel free to
report it on:
https://bugs.launchpad.net/jhelioviewer/+filebug
We will try to solve your problem as fast as possible. The more details
you can provide the easier it is for us. For example your system
specifications (hardware and software with version numbers) as well as
a detailed description what you did (so we can reproduce the problem
are very helpful. If possible, please also be ready to provide the log
files from the session where the problem occured. The log files can be
found in the Logs/ directory of your JHelioviewer home folder. You can
find the correct log file by searching for the correct start date. The
files have the form:
jhv.'year'-'month'-'day'T'hours'-'minutes'-'seconds'.log
Documentation
-----------------
The main documentation for JHelioviewer is provided as a wiki:
http://www.helioviewer.org/wiki/index.php?title=JHelioviewer
It is part of the Helioviewer project:
http://www.helioviewer.org/wiki/index.php?title=Main_Page
Frequently Asked Questions
---------------------------
See https://answers.launchpad.net/jhelioviewer/+faqs
User Handbook
--------------
A detailed MediaWiki based handbook on the usage of JHelioviewer can be
found on
http://www.helioviewer.org/wiki/index.php?title=JHelioviewer_Handbook
Development Information
------------------------
Some short build and installing instructions can be found in the file
INSTALL
(only contained in the source code).
For more detailed help or further information on the design concept,
coding guidelines and other development information please visit
http://www.helioviewer.org/wiki/index.php?title=JHelioviewer_Development_Information
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