Hi, I am working on the social networking application where I have to show all my connections in graph view uptoi some k levels of graph. I am almost done with the back end code and I am struggling to display the connections in the browser. Is there any library for the UI library which can simplify my task. Please let me know if you know some thing. Thanks, Ramu
on 2008-10-11 21:54
on 2008-10-11 23:07
Hi Ramu, This may not be ideal, but I've been using the dot graphing language to generate simple directed graph images and USEMAPs which can assign an arbitrary url link to each node. I'm using this in a prototype, not in a "production" system. See http://www.graphviz.org/ for information on the dot language, once you have dumped your connection information to the dot language you can use a command like the following dot -Tcmapx -o base.map -Tgif -o base.gif base.dot to build the image and the usemap which should be included in your view using something like the following. <%= File.read("base.map") %> <%= image_tag("base.gif", :usemap => '#map_name') %> I'd be interested to hear better solutions for this problem. Best -- Eric "firstname.lastname@example.org" <email@example.com> writes:
on 2008-10-11 23:19
Thanks for your reply. But, I am not looking for generating the gif file. Because If one of the node has 200 direct childs (connectons) then the look and feel of the graph wont be nice. So I am planning to show 7 to 10 contacts with the next previous buttons at the first level. And each node in the graph should be clickable and once I click on one of the node that node should expand as the root node and it should able to generate new graph with the clicked node as the root node. It should always show 5 levels with next and previous buttons. Any help or suggestions. Thanks, Ramu.