~ubuntu-branches/ubuntu/precise/whoopsie-daisy/precise-proposed

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
d3.scale.pow = function() {
  return d3_scale_pow(d3.scale.linear(), 1);
};

function d3_scale_pow(linear, exponent) {
  var powp = d3_scale_powPow(exponent),
      powb = d3_scale_powPow(1 / exponent);

  function scale(x) {
    return linear(powp(x));
  }

  scale.invert = function(x) {
    return powb(linear.invert(x));
  };

  scale.domain = function(x) {
    if (!arguments.length) return linear.domain().map(powb);
    linear.domain(x.map(powp));
    return scale;
  };

  scale.ticks = function(m) {
    return d3_scale_linearTicks(scale.domain(), m);
  };

  scale.tickFormat = function(m) {
    return d3_scale_linearTickFormat(scale.domain(), m);
  };

  scale.nice = function() {
    return scale.domain(d3_scale_nice(scale.domain(), d3_scale_linearNice));
  };

  scale.exponent = function(x) {
    if (!arguments.length) return exponent;
    var domain = scale.domain();
    powp = d3_scale_powPow(exponent = x);
    powb = d3_scale_powPow(1 / exponent);
    return scale.domain(domain);
  };

  scale.copy = function() {
    return d3_scale_pow(linear.copy(), exponent);
  };

  return d3_scale_linearRebind(scale, linear);
}

function d3_scale_powPow(e) {
  return function(x) {
    return x < 0 ? -Math.pow(-x, e) : Math.pow(x, e);
  };
}