Hi Vimal,
A RemoteDisplayImpl is the VisAD class for any Display coming from a remote
source. Many VisAD collaborative applications use RemoteDisplayImpls to
synchronize displays between client and server. A RemoteSlaveDisplayImpl is a
special type of RemoteDisplay (you'll notice that the constructor takes a
RemoteDisplay object) whose component simply paints a BufferedImage captured
from the RemoteDisplay. MouseEvents on the component are sent via RMI to the
DisplayImpl on the server end, and when the DisplayImpl changes, a new image
snapshot of it is taken and sent via RMI to the RemoteSlaveDisplayImpl.
The advantage of a RemoteSlaveDisplayImpl is that you do not need Java3D on the
client to view 3-D data, since all the rendering is done on the server. The
disadvantages are that it is much slower than a regular RemoteDisplayImpl, and
that you cannot manipulate a RemoteSlaveDisplayImpl to the extent of a normal
display (you cannot alter ScalarMaps, for example).
I hope my explanation helps. Let the list know if you have more questions.
-Curtis
At 14:39 7/13/00, you wrote:
>Hello everyone,
>
> I was going through the VisAD developer's guide and it's not clear to me
> what the difference is between RemoteDisplayImpl and RemoteSlaveDisplayImpl.
> If anyone can offer any insight, I'd greatly appreciate it.
>
>Thanks as always,
>Vimal B. Gopal
