You require a tree layout diagram that is based on data from a JSON source. Within the tree nodes, there will be image, video and text elements. Other HTML elements also required.
Relevant Skills and Experience
I currently specialize in data visualization web apps using D3.js, & Javascript. I have done many complicated data driven visualizations using D3.js I know you require [login to view URL] which I have used once.
Proposed Milestones
€80 EUR - Read in JSON file and display nodes without any embedded data except node name
€80 EUR - Insert, remove nodes, edit in node text, save json
€80 EUR - Youtube thumb, side menu, properties page
€60 EUR - Remaining features, cosmetic changes, testing and acceptance
I have done a number of tree based view using D3.js but not vis.js. Is there a particular reason you are using [login to view URL] The last time I used it, I found it to be nowhere close to D3.js as a visualisation library. Some treeview or similar recent apps :
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Changes as per latest [login to view URL] and latest discussion