javascript - Manipulating d3 network diagram -

javascript - Manipulating d3 network diagram -

thanks stopping by. have question regarding d3 network diagram. have simple, 1 here in jsfiddle enter link description here , diagram.and id have function, illustration deletes middle circle , connects first , 3rd one. please assist me on ?

[['l1', 'l2'], ['l2', 'l3']]

probably not gonna 'hard delete', hiding or not showing ? because id know way how bring middle, deleted circle , original diagram back.

ideally love assist me snippets of 2 functions 1 delete middle circle , other 1 (say pressing button) bring back.

also create assumption each circle has id , connections between them have ids well, if makes stuff easier of course.

thanks time, neil

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