mstefaniuk / graph-viz-d3-js / 175

98%

Pull #41

travis-ci

Fixed panning when outzoomed by correcting zoom overlay

From https://bl.ocks.org/mbostock/4e3925cdc804db257a86fdef3a032a45:

The zoom behavior is applied to an invisible rect overlaying the SVG
element; this ensures that it receives input, and that the pointer
coordinates are not affected by the zoom behavior’s transform.

There were several problems:

1. The overlay rect was a child of the g that was transformed.
2. The zoom behavior was not attached to the rect, but to the g.
3. The rect was not positioned correctly after applying fixes for 1
   and 2.

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