data visualization graph in php joomla

Requirements Development Platform: Joomla,PHP,MySQL Server :XAMPP At the moment,Website resides in local server. Module 1: GRAPH • A graph has to be generated as a part of this website based on the parameters from the sql database. • All the nodes are attached to one root node. • That Graph must have 4 levels ( HL1, HL2, HL3,HL4) and nodes are placed in each of these levels based on the value in HL field in the database. • For Example if HL= 2 for a node” P1” in database then the node “P1” is in 2 level. • The nodes should be replaceable by images or they should be differentiated clearly in some other way. For example, they can be in different shapes or even colors so all the red nodes in the graph represent maturity 1 and all green nodes represent maturity [login to view URL] exists a field called maturity in the database. It should reflect this field. The values could be again anything from {0,1,2,3}. • Clicking on the node should provide link to another page which is designed and available already. • The nodes are connected if there is association between them. This is also stored in the database. There is a table called “Association “in the database which has fields “source” and “destination”. There should be connections between nodes in the different levels or even in the same level. Only these associations are highlighted in the graph and the connection with the root node id shown as dotted line (if possible invisible). I have some idea on basic implementations like javascript libraries.I have all the models written to fetch the data from the database even. This is really very urgent and have to be completed in very short span of time like 2-3 days.