Multiple users draw at the same time

Hello there,
I am very sorry if this is the wrong place for posting this question.
I am trying to create a java2D application where multiple users can collaborate to draw on canvas (at the same time from two or more machines). The first user should act as a server and all other users should be the clients. I want the drawing to occur in real time. I have some ideas (like using Monitors and java synchronization) on how to do it but I am not sure if this is the right way to approach such a problem.
Also I know that I will need something like a Buffer to store changes and a way of communication...
I would appreciate it if anyone could help me. Guidance or a simple example that can help me to understand the logic behind it so I can develop it myself.
Thanks in advance for your time...

I've implemented this project to provide "whiteboard" capability to an existing chat client. The "model" for the drawing was an SVG document (rendered using Apache Batik) and the communication between clients was the SVG (XML) snippets and their location in the document.
Only difference is that one-to-one was supported with clients. One-to-many required a server-side component, but there's no reason one client couldn't have acted as the server.
So my recommendation is SVG, then your communication layer is really a simple XML document editing protocol. Our protocol is here but was never approved as a XEP by the XMPP council. The date's wrong; that protocol was updated as recently as 2008.

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Daniel Wells AIA, VCP
Senior Associate | IT Coordinator
MHTN Architects, Inc.
Direct: 801.326.3215 | www.mhtn.com
vision made real

Hi!
Gotchas?
Well, it essentially does exactly what it is supposed to do.
(BTW, i have tested this with Filr 1.0.1 some time ago, if 1.1 behaves
differently this would bw a MAJOR product change.)
Given:
Two internal Users A+B with the homedirs pointing to the exact same path
\\Server\Dir
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rights to c@tld.
* User c@tld logs in and creates a file X\file
* User B logs in, see a folder X and the file with A as the author. The
folder IS NOT shared to everyone (at least as far as user B is concerned,
the user does NOT set the sharing details of user A)
* User B shares the same folder X with c@tld with view only rights.
* User c@tld clicks the link from User B and IS NOT able to contribute.
* User c@tld is puzzled and calls User A asking why his rights have been
revoked.... etc. etc.
* User B has the (for him readonly) data somewhere else and calls the folder
X obsolete and deletes it.
* User A and c@tld are really pissed off.... etc. etc.
* User c@tld has several different links with potentially different rights
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Georg
>>> Daniel Wells<[email protected]> schrieb am 05.11.2014 um 20:54 in
Nachricht <[email protected]>:
> One of the things we need to be able to do for out work is share
> folders. We are project based and do not want to store the projects in
> the users "eDirectory User" home folder. We made some initial test
> assigning two users to the same "Home Folder" and shared a folder and had
> multiple accounts both internal and external pick-up and drop off files in
> the folder.
>
>
>
> While it appears to work, I wanted to find out if there are downsides in
> having 20-30 people with the same Filr "Home Folder". What are the
> potential "gotchas". Security (internal) isn't an issues since these
> network locations are accessible by all the users anyway.
>
>
>
>
>
>
> Daniel Wells AIA, VCP
> Senior Associate | IT Coordinator
> MHTN Architects, Inc.
> Direct: 801.326.3215 | www.mhtn.com
> vision made real

Multiple users draw at the same time

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