Consider provide user interaction callbacks (ex: onclick) about r2d3

[jjallaire]

@javierluraschi Is there anything special we would do here? It seems like this is already covered by the D3 API (i.e. you can provide these callbacks directly without any help from r2d3) but perhaps I'm missing something.

[edgararuiz-zz]

Maybe adding how to do that to the basic example in the site/vignettes?

// !preview r2d3 data=c(0.3, 0.6, 0.8, 0.95, 0.40, 0.20)

var barHeight = Math.floor(height / data.length);

svg.selectAll('rect')
  .data(data)
  .enter().append('rect')
    .attr('width', function(d) { return d * width; })
    .attr('height', barHeight)
    .attr('y', function(d, i) { return i * barHeight; })
    .attr('fill', 'steelblue')
    .on("mouseover", function(){ d3.select(this) .attr('fill', 'orange'); })
    .on("mouseout", function() { d3.select(this) .attr('fill', 'steelblue') });

[jjallaire]

One thing we aren't trying to do in the basic examples is teach D3 (as that's a much, much bigger topic!). That's why we created the Learning D3 page: https://rstudio.github.io/r2d3/articles/learning_d3.html

So I could add the simple interactions suggested here, but that will also just beg the question of how to do other non-toy interactions.

[TuSKan]

Sorry for open this issue guys. All of you are correct, you can't put in preview examples, all the features of the D3.
Thank you very much, for providing one example above.
You can close this issue.