PMSI-AlignAlytics / dimple

An object-oriented API for business analytics
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chart now capable of displaying multiple tooltips #224

Open jmcmichael opened 8 years ago

jmcmichael commented 8 years ago

I need to display multiple tooltips on a parallel-coordinates chart that I'm working on (http://github.com/jmcmichael/linked-scatterplots), and noticed that dimple._showBar/PointTooltip stores a single reference to a tooltip SVG group, thus limiting charts to a single tooltip.

I've updated the _showBarTooltip, _showPointTooltip, and _removeTooltip functions to store references to tooltip groups in an object indexed by d3's event key field. Multiple tooltips now work (they do in my chart, anyway - I should probably provide a simplified version as an example), and I checked several examples to ensure that the existing tooltip behavior remains preserved.