Most collaboration applied sciences require a central server to manager communication. Email, net browsing and instantaneous messaging all require a server to handle communication between clients. This post re-introduces a sample originally printed in May of 2008 that facilitates server-less map collaboration or “peer-to-peer geo-collaboration”. The new add-in for ArcGIS 10 will be downloaded (with source code) from right here.
Download the contribution from the code gallery (link), unzip the file and double click on file with the esriAddIn extension. Add-In Manager, selecting P2P Collaboration from the record of installed add-ins and clicking Delete this Add-In. P2P Collaboration. Clicking on the only button on the toolbar will display the p2p collaboration dockable window as shown beneath.
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Before you can collaborate with different peers you will need to first connect to a mesh (or peer cloud). A mesh is virtual network comprising of two or more friends. When the Connect button is clicked the following dialog is displayed. The Username is a friendly title that you want to be recognized on the mesh as.
By default, a password just isn’t used. If you specify a password then you will Only be capable of “see” different friends that used the same password. Using a password is an efficient methodology of excluding unwanted friends. Most P2P purposes are thought of to be examples of hybrid P2P technology.
This is because most depend on some kind of server interplay, comparable to a DNS server. Within the case of this add-in, a centralized useful resource is required for friends to find different peers. This central resource is known as a peer resolver. Peer Name Resolution Protocol (or PNRP) is a proprietary technology by Microsoft. The add-in helps PNRP 2.Zero which is put in by default on computers running Microsoft Windows Vista and an non-obligatory set up for Microsoft Windows XP SP2.
This is the address of a custom peer resolver running on your community. Details on how to configure and start a custom peer resolver are detailed beneath. The aim of the resolver is to trade IP addresses (and ports) of other peers. All subsequent communication is completed on a peer-to-peer foundation.
Within a number of seconds on connecting you must see the names of different friends showing within the record. The user in daring is you. To talk click on the Chat tab and begin typing. It will be important to note that chatting is communal, that’s, all peers see all textual content messages.
Returning to the Users tab, for those who proper click on another peer’s title you will notice the next context menu seem. Clicking on Publish Map will ship your present map show to the selected person. The chosen consumer (i.e. Jim) will automatically receive a new raster layer in his map document. In the example above, Jim sent a screenshot to Bob. This is able to have required Bob to make an specific request to Jim. The p2p collaboration add-in has the potential of requesting a screenshots from other friends with out them realizing!
To covertly request a screenshot, choose Request Map within the context menu. Share option from the main menu. Shared graphics might be probably the most useful feature of the add-in. All peers can add, remove, edit graphics collectively. A line or box added by one peer will be moved or deleted by one other peer.