d3.js - D3 force layout fix root node at the center -


I managed to draw some basic D3 force layout graphs, but struggling to fix the root node in the center .

My data is rather simple; One root node with children of one level Only one level is another special thing about my graph that the link distance is different depending on some parameters.

I have to put the root node in the center of the graph.

Setting its property 'fixed': does not really work. Any idea of ​​having a root node in the center? 

  force. ("Tick" function () {nodes [0] .x = w / 2; nodes [0]. Y = h / 2;

should do this.


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