Ordinal scale inversion #598
Conversation
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Hmm. I'm not sure this is a good idea; the brush makes more sense with quantitative scales. There's an example using a brush with an ordinal scale, but normally I think of toggling individual values rather than selecting a range. |
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Hmm, good point. Closing for now, in that case. |
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ordinal scale inversion is exactly what I need for mouse interaction with bar charts. I'll definitely add this little patch to the copy of d3 we're using for our project. |
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Ordinal scales where this would be really handy: |
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I was just making a parallel coordinates chart like this one and to look at correlations between ordinal data sets. Was a little disappointed that this feature didn't move forward as scale inversion would have made this much easier. @mbostock Is there an example for 'toggling distinct values'? I haven't run across this example yet and it would be pretty helpful in this case. [now that I've declared that I haven't seen this example yet, I will almost certainly find it soon and update this thread accordingly] |
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What's about this man? |
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This issue has been superceded by this other one d3/d3-scale#60 There you can find an active effort towards this by @jheer and @mbostock . It looks like ordinal scale inversion will land in D3 4.0. |
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Also here's an example that pretty much does invert an ordinal scale: |
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@curran inverting still seems absent, has this been implemented another way? |
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What do you mean? What would the semantics look like? What function is expected and what would be the input and output in particular? |
For use with d3.svg.brush e.g. for brushing histograms with ordinal scales. This is a very simple implementation; ideally we want to take into account the current type of range in use.
If I'm headed in the right direction, I'd be happy to improve it and add tests. :)