I am trying to bind the datapoints with the onclick event, so that I could display a overlay box with some additional details and links. I'm using the .nv-point
class to access the datapoints. The problem is that I'm unable to register the onclick event to those datapoints.
Here is the code :
d3.selectAll(".nv-point").on("click",function(){
alert("clicked");
//do something more
});
Here is the demo in jsFiddle
You can easily attach a click handler to the "circle", or node point on a lineChart like this:
chart.lines.dispatch.on('elementClick', function(e) {
alert("You've clicked on " + e.series.key + " - " + e.point.x);
});
In the above example, this will show the Key (of the line) and the exact x value of the node you've clicked on. I find it very helpful to set a breakpoint on the alert line, and using Chrome/FF/etc developer tools, inspect the thee
object so you can see exactly what data is available and how to access it.
After much futzing around, this seems to work for me:
d3.select("#mainGraph svg").selectAll(".nv-point").style("pointer-events", "all").on("click", function( e ) { console.log( JSON.stringify( e ) ); });
Basically, the difference between what I've done and what you originally tries is just resetting overriding the stylesheet to turn on pointer-events, i.e. style("pointer-events", "all").`
The line plot is made with svg lines, which have class nv-line. A fork of your original jsFiddle is here: http://jsfiddle.net/pnavarrc/qzwkn/1/
d3.selectAll(".nv-line").on("click", function () {
alert("clicked");
});
If you feel like having a look at the source code of nvd3:
You could just add the argument, that will link it to the data point. In my case, I was trying to hyperlink for each data point. The arguments has value passed, which can be used to update hyperlink as per requirement.
d3.selectAll(".nv-point").on("click", function (e) {
alert(e[0].values[0]);
});
来源:https://stackoverflow.com/questions/16103244/nvd3-js-unable-to-bind-onclick-event-with-the-data-points-in-the-svg