CODEWITHSUNDEEP
javascriptd3.jschartsdc.js
Mesut Paksoy
Mesut Paksoy

Reputation: 45

Linking multiple pie charts to a single legend in dc.js

I have 3 similar pie charts. They use same dimension but different groups so, their legends look the same. Instead of having 3 same looking legends, I'd like to bind only a single legend to those charts. I tried creating a legend separately and assign it to the charts, however, it didn't work. Is there actually a way to do such thing?

Upvotes: 4

Views: 547

Answers (1)

Gordon
Gordon

Reputation: 20120

This is not directly supported by dc.js, but it is very similar to a legend on a composite chart. I think if you were willing to do some hacking, you could override the legendables function on the chart you want to put the legend with, and have it accumulate the legendables from its sibling charts.

Take a look at pieChart.legendables: https://github.com/dc-js/dc.js/blob/master/src/pie-chart.js#L419

And then compositeChart.legendables https://github.com/dc-js/dc.js/blob/master/src/composite-chart.js#L363

for inspiration.

If this is too much hacking for you, please file an issue. It would certainly be nice to support!

Upvotes: 1

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