mirror of
https://github.com/chartjs/Chart.js.git
synced 2024-10-06 04:09:08 +02:00
Removed custom hue(), using hsl()
This commit is contained in:
parent
73faf3413b
commit
b9776736d4
@ -36,58 +36,6 @@
|
||||
|
||||
};
|
||||
|
||||
function hue(part, total) {
|
||||
// Given the total number of segments (total) and the index of a segment (part) returns a #rrggbb color for the segment
|
||||
var h = (part / total) * 360,
|
||||
s = 1,
|
||||
v = 1,
|
||||
c = v * s,
|
||||
x = c * (1 - Math.abs((h / 60) % 2 - 1)),
|
||||
m = v - c,
|
||||
r,
|
||||
g,
|
||||
b;
|
||||
|
||||
switch (Math.floor(h / 60)) {
|
||||
case 0: // 0 <= h < 60
|
||||
r = c + m;
|
||||
g = x + m;
|
||||
b = 0 + m;
|
||||
break;
|
||||
case 1: // 60 <= h < 120
|
||||
r = x + m;
|
||||
g = c + m;
|
||||
b = 0 + m;
|
||||
break;
|
||||
case 2: // 120 <= h < 180
|
||||
r = 0 + m;
|
||||
g = c + m;
|
||||
b = x + m;
|
||||
break;
|
||||
case 3: // 180 <= h < 240
|
||||
r = 0 + m;
|
||||
g = x + m;
|
||||
b = c + m;
|
||||
break;
|
||||
case 4: // 240 <= h < 300
|
||||
r = x + m;
|
||||
g = 0 + m;
|
||||
b = c + m;
|
||||
break;
|
||||
case 5: // 300 <= h < 360
|
||||
r = c + m;
|
||||
g = 0 + m;
|
||||
b = x + m;
|
||||
break;
|
||||
}
|
||||
|
||||
r = '00' + Math.round(r * 255).toString(16);
|
||||
g = '00' + Math.round(g * 255).toString(16);
|
||||
b = '00' + Math.round(b * 255).toString(16);
|
||||
|
||||
return '#' + r.substr(r.length - 2) + g.substr(g.length - 2) + b.substr(b.length - 2);
|
||||
}
|
||||
|
||||
Chart.Type.extend({
|
||||
//Passing in a name registers this chart in the Chart namespace
|
||||
name: "Doughnut",
|
||||
@ -125,7 +73,7 @@
|
||||
|
||||
data = data.map(function (v, i, a){
|
||||
if (!v.color) {
|
||||
v.color = hue(i, a.length);
|
||||
v.color = 'hsl(' + (360 * i / a.length) * 360 + ', 100%, 50%)';
|
||||
return v;
|
||||
}
|
||||
});
|
||||
|
Loading…
Reference in New Issue
Block a user