RVS Web Service FAQ
1. What is the RVS web wervice
The RVS Server, as the name suggests, is the server side of the
system. It is distributed server that accepts user commands via a
web service, and uses the different components on the server to
fulfill the requests.
2. Where was the web service developed?
The RVS was developed at the Australia Telescope National
Facility (a division of CSIRO).
3. Can anyone use the RVS web service to view any FITS files on the
internet?
That depends on the environment in which the server is set up. In some
cases the RVS Server may be set up as a visualisation interface to
a particular data archive. The administrators may set this up so only the
data from their archive can be visualised.
Another type of setup may be to allow anyone to connect and view any
web-accessable image.
4. Can anyone deploy the RVS web service to visualise their data?
Yes. The source/binary releases of the server as well as accompanying
documentation will be made available for download in the near future.
5. What platforms can the web service be executed on?
Being a distributed system, different components may be executed on
different nodes in a network. Most components are in Java, making them
platform independent but one is written for linux based systems.
6. What web servers can be used to host the RVS web service?
The web service is written in Java, so any web server with Java
(servlet/JSP) support can host the web service. Apache Tomcat
and IBM WebSphere are two examples of such servers.
7. What does the server use for image processing?
The AIPS++ Display Library is used for all astronomy image
processing. This gives the user access to the host of options
available in the library.
8. What types of images can be visualised using the service?
Any valid FITS image is supported. These images may be displayed as
rasters, contours or vectors. There are plans to extend functionality
to include support for:
- visualisation of visibilities
- profiling of cubes
- overlaying of catalogue data
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