D3 arrows in the power radiation pattern

I am puzzled. Why just copying and pasting the example http://bl.ocks.org/1153292 , the arrows do not align. (see below)

enter image description here

UPDATE: it works in Chrome and Safai, but not in Firefox ... even more puzzled. Any ideas?

What would you change in the example to get straight lines instead of curves?

Thank.

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3 answers

This works in Chrome and Safari and in Firefox 14 (and possibly earlier). It is fixed in Firefox 15 onwards. See Error https://bugzilla.mozilla.org/show_bug.cgi?id=773266

I tested it on Firefox 14 (it fails) and 15 (it passes).

Answer to the original question: Because it is corrupted in Firefox.

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. . firebug. goto svg > defs > . refX refY. .

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Perhaps there was a cut and paste error? It works great here. http://jsbin.com/akulid/edit#html,live

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