threshold()

threshold(value)

Given a value in the input domain, returns the corresponding value in the output range. For example:

var color = d3.scaleThreshold()
    .domain([0, 1])
    .range(["red", "white", "green"]);

color(-1);   // "red"
color(0);    // "white"
color(0.5);  // "white"
color(1);    // "green"
color(1000); // "green"

Links:

https://github.com/d3/d3-scale#_threshold

doc_D3_Js

2016-11-24 10:29:11

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