This page contains information on creating
collaborative end-user visualization applications. These applications are
designed to allow non expert users of IRIS Explorer gain access to its
visualization power and in addition, collaborate with their colleagues.
These applications aim to make the collaboration process as seamless as
possible. A number of collaborative applications are available in this
release as described below; they can be accessed by running IRIS Explorer in
application mode using the -app command line argument (e.g
explorer -app <application name>)
Example Collaborative Applications
This application is designed to read volumes of CT and SPECT data and
then visualize the data one slice at a time (from each volume). The
two data sets must be correlated in space so it makes sense to overlay
them and draw conclusions from the resulting image. This correlation
process must be done before you can run the application. In the
remainder of this section CT data is
referred to as Bone data and SPECT data is referred
to as Blood data.
The application can be used to visualize blood OR bone data separately
or to visualize corresponding volumes of both blood and bone data together.
Some options are only available when both data sets are present. The application
is set up to demonstrate that the data need not necessarily be present
at each site before the application is started. Data is allowed to be either
local or remote (see Blood/Bone Source widgets in application help file). When in
a collaborative session, some of the control panel widgets are set up to
be shared, while others are only locally controllable. Shared widgets are
marked as Shared in the application help file, and with an asterix (*) on the
user interface. Two data sets (one CT and one SPECT)
are available as an example and are to be found in:-
$EXPLORERHOME/data/lattice/CTvol.lat Bone (CT) data
$EXPLORERHOME/data/lattice/SPvol.lat Blood (SPECT) data
where $EXPLORERHOME is the root dirtectory of the installed
IRIS Explorer tree.
The application is set up in two halves, a blood half and a bone half.
One collaborator should run the Medical_blood application and the other
should run the Medical_bone application. When joined to a collaborative
session, the two complementary setups provide all the necessary data. Alternatively,
the application can be run by a single user by running the Medical_blood
application and inserting the filename for the bone data (shown above)
in the Bone Data text box. The Bone Source should then be set to local.
Protein Database Viewer
This is a collaborative version of the original PDBViewer application
which is used to view PDB (protein data base) files. It can be used in
single user mode in exactly the same way as the original protein data
base viewer (which is
available in the same way and also existed in the previous release of
IRIS Explorer), or can be hooked
up to a collaborative session to allow the collaborative exploration of
the protein data base. When in collaborative mode, those widgets that are
under collaborative control are marked with an asterix (*).
This is an example application that can be used in both single user
mode as well as collaboratively. It allows the visualization of gridded
data either as a bar chart, or as a displaced surface. The colouring of
the data can be controlled, and a colour legend can be added. In collaborative
mode, all of the control panel widgets that are shared between collaborators
are marked with an asterix (*).
A shared pointer is available to highlight objects in the scene
in collaborative sessions.