我正在使用chart.js库来制作极坐标图,但无法更改标签的颜色,请帮助我如何更改标签的颜色。我的图表看起来像http://headsocial.com:8080/upload/145448587471822e0922d67c9dd6aae46d70bfeef1623.png,但我想改变颜色为灰色目前它正显示出喜欢橙色的Chart.js更改标签颜色
function show_polar_chart_data1(data, id){
var jsonData = jQuery.parseJSON(data);
var data = [
{
value: jsonData.IDENTITY_Avg,
color: "#8258FA",
highlight: "#8258FA",
label: "IDENTITY("+jsonData.IDENTITY+")"
},
{
value: jsonData.ROLE_Avg,
color: "#34ED13",
highlight: "#34ED13",
label: "ROLE("+jsonData.ROLE+")"
},
{
value: jsonData.ATTITUDE_Avg,
color: "#FFFF00",
highlight: "#FFFF00",
label: "ATTITUDE("+jsonData.ATTITUDE+")"
},
{
value: jsonData.AGILITY_Avg,
color: "#FF0000",
highlight: "#FF0000",
label: "AGILITY("+jsonData.AGILITY+")"
},
{
value: jsonData.FAIRNESS_Avg,
color: "#00FFFF",
highlight: "#00FFFF",
label: "FAIRNESS("+jsonData.FAIRNESS+")"
},
{
value: jsonData.CONFLICT_Avg,
color: "#EE9A4D",
highlight: "#EE9A4D",
label: "CONFLICT("+jsonData.CONFLICT+")"
}
];
var ctx = document.getElementById("chart").getContext("2d");
var polarChart = new Chart(ctx).PolarArea(data, {
scaleOverride: true,
scaleStartValue: 0,
scaleStepWidth: 1,
scaleShowLabels: false,
scaleSteps: 10,
onAnimationComplete: function() {
this.segments.forEach(function (segment) {
var outerEdge = Chart.Arc.prototype.tooltipPosition.apply({
x: this.chart.width/2,
y: this.chart.height/2,
startAngle: segment.startAngle,
endAngle: segment.endAngle,
outerRadius: segment.outerRadius * 2 + 10,
innerRadius: 0
})
var normalizedAngle = (segment.startAngle + segment.endAngle)/2;
while (normalizedAngle > 2 * Math.PI) {
normalizedAngle -= (2 * Math.PI)
}
if (normalizedAngle < (Math.PI * 0.4) || (normalizedAngle > Math.PI * 1.5))
ctx.textAlign = "start";
else if (normalizedAngle > (Math.PI * 0.4) && (normalizedAngle < Math.PI * 0.6)) {
outerEdge.y += 5;
ctx.textAlign = "center";
}
else if (normalizedAngle > (Math.PI * 1.4) && (normalizedAngle < Math.PI * 1.6)) {
outerEdge.y - 5;
ctx.textAlign = "center";
}
else
ctx.textAlign = "end";
ctx.fillText(segment.label, outerEdge.x, outerEdge.y);
})
done();
}
});
});
}
}
谢谢@potatopeelings。这正是我想要的。没有声望+1 –
完全没问题。很高兴它解决了。干杯! – potatopeelings