有没有办法在chart.js中的两点之间设置特定部分的线条颜色?
我想将该部分00-07
涂成灰色,07-15
红色和15-23
蓝色。
这是我作为对象中的data
属性传递options
来初始化图表的内容:
var chartData = {
labels: [/* a single dimensional array of strings */],
datasets: [
{
label: '',
data: [/* a single dimensional array of totals */],
fill: false,
backgroundColor: '#e7eaeb',
borderColor: red
}
]
};
我认为这是我需要添加图形截面点和颜色的地方,但是我不知道如何。
1> HoangHieu..:
嗨,迈克尔·赫尔利,我想您应该使用:
插值:http :
//www.chartjs.org/samples/latest/charts/line/interpolation-modes.html
要么
多轴:http : //www.chartjs.org/samples/latest/charts/line/multi-axis.html
我的想法是,我们有3个彩色数据集,数据集1的末尾是数据集2的第一个。
这是我的例子:
window.chartColors = { red: 'rgb(255, 99, 132)', orange: 'rgb(255, 159, 64)', yellow: 'rgb(255, 205, 86)', green: 'rgb(75, 192, 192)', blue: 'rgb(54, 162, 235)', purple: 'rgb(153, 102, 255)', grey: 'rgb(201, 203, 207)' };
var randomScalingFactor = function() {
return Math.round(Math.random() * 100);
};
var cOnfig= {
type: 'line',
data: {
labels: ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12'],
datasets: [{
label: 'Cubic interpolation (monotone)',
data: [0, 20, 20, 60, 60, NaN, NaN, NaN, NaN, NaN, NaN, NaN, NaN],
borderColor: window.chartColors.red,
backgroundColor: 'rgba(0, 0, 0, 0)',
fill: false,
cubicInterpolationMode: 'monotone'
}, {
label: 'Cubic interpolation (default)',
data: [NaN, NaN, NaN, NaN, 60, 120, 140, 180, 120, NaN, NaN, NaN, NaN],
borderColor: window.chartColors.blue,
backgroundColor: 'rgba(0, 0, 0, 0)',
fill: false,
}, {
label: 'Linear interpolation',
data: [NaN, NaN, NaN, NaN, NaN, NaN, NaN, NaN, 120, 125, 105, 110, 170],
borderColor: window.chartColors.green,
backgroundColor: 'rgba(0, 0, 0, 0)',
fill: false,
lineTension: 0
}]
},
options: {
responsive: true,
title: {
display: true,
text: 'Chart.js Line Chart - Cubic interpolation mode'
},
tooltips: {
mode: 'index'
},
scales: {
xAxes: [{
display: true,
scaleLabel: {
display: true
}
}],
yAxes: [{
display: true,
scaleLabel: {
display: true,
labelString: 'Value'
},
ticks: {
suggestedMin: -10,
suggestedMax: 200,
}
}]
}
}
};
var ctx = document.getElementById('canvas').getContext('2d');
window.myLine = new Chart(ctx, config);
canvas {
-moz-user-select: none;
-webkit-user-select: none;
-ms-user-select: none;
}