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I get stranges artifacts during my reprojection's transition (from top to bottom) :

(1) Starting state snapshot : enter image description here

(2) Transitioning (zooming-in) snapshot: enter image description here

(3) Final state snapshot: enter image description here

The live demo is there. No error messages in the console. Both initial and final states are perfect. I have no clue. Any experience with such transition / reprojection display bugs ?

Hugolpz
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  • Interestingly, only path projected via `datum()` seems affected. – Hugolpz Jan 28 '15 at 17:03
  • Have you seen [this question](http://stackoverflow.com/questions/17045826/how-to-do-smooth-transition-for-map-reprojection-in-d3-js)? A straightforward transition won't work in most cases. – Lars Kotthoff Jan 28 '15 at 17:42
  • 1. Bug still here after migration to `data()`. – Hugolpz Jan 28 '15 at 18:12
  • @LarsKotthoff, it doesn't seems to be reprojection related, the common case is just making scale transition to zoom in & out together with a translation for recentering the view. All of these synchronously on equirectangular. – Hugolpz Jan 28 '15 at 18:48
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    No, that's exactly the problem -- you're *setting* the projection attributes and then *transitioning* the `d` attributes of the paths. This approach suffers from the exact problem that Mike describes in his answer. – Lars Kotthoff Jan 28 '15 at 18:56
  • @LarsKotthoff: ok, thanks, I return to dig on this. – Hugolpz Jan 28 '15 at 19:20

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