有很多擴展圖表的例子，包括橫向和縱向的一行。但是，我還沒有找到一種方法來繪製水平條形圖的垂直線。如何使用ChartJS在水平條形圖上繪製垂直線？
沒有一個 「垂直線圖」 選項一樣有一個 「水平條形圖」 選項。如何將水平條形圖與垂直線結合起來？
結果將有一個酒吧數據集，並可以在同一個圖表上使用同一軸上像下面所使用的線數據集：
ChartJS支持自定義插件。創建一個插件，它將從圖表選項中讀取一個新屬性，並在指定索引處繪製該行。
//Create the plug in
var originalLineDraw = Chart.controllers.horizontalBar.prototype.draw;
Chart.helpers.extend(Chart.controllers.horizontalBar.prototype, {
draw: function() {
originalLineDraw.apply(this, arguments);
var chart = this.chart;
var ctx = chart.chart.ctx;
var index = chart.config.options.lineAtIndex;
if (index) {
var xaxis = chart.scales['x-axis-0'];
var yaxis = chart.scales['y-axis-0'];
var x1 = xaxis.getPixelForValue(index);
var y1 = yaxis.top;
var x2 = xaxis.getPixelForValue(index);
var y2 = yaxis.bottom;
ctx.save();
ctx.beginPath();
ctx.moveTo(x1, y1);
ctx.strokeStyle = 'red';
ctx.lineTo(x2, y2);
ctx.stroke();
ctx.restore();
}
}
});
//Set up the chart data
var data = {
labels: ["January", "February", "March", "April", "May", "June", "July"],
datasets: [
{
label: "My First dataset",
backgroundColor: [
'rgba(255, 99, 132, 0.2)',
'rgba(54, 162, 235, 0.2)',
'rgba(255, 206, 86, 0.2)',
'rgba(75, 192, 192, 0.2)',
'rgba(153, 102, 255, 0.2)',
'rgba(255, 159, 64, 0.2)'
],
borderColor: [
'rgba(255,99,132,1)',
'rgba(54, 162, 235, 1)',
'rgba(255, 206, 86, 1)',
'rgba(75, 192, 192, 1)',
'rgba(153, 102, 255, 1)',
'rgba(255, 159, 64, 1)'
],
borderWidth: 1,
data: [65, 59, 80, 81, 56, 55, 40],
}
]
};
//Load Chart
var ctx = $("#myChart");
var myBarChart = new Chart(ctx, {
type: 'horizontalBar',
data: data,
options: {
//Set the index of the value where you want to draw the line
lineAtIndex: 60,
legend: {
display: false
}
}
});<canvas id="myChart"></canvas>
<script src="https://code.jquery.com/jquery-2.2.4.min.js" integrity="sha256-BbhdlvQf/xTY9gja0Dq3HiwQF8LaCRTXxZKRutelT44=" crossorigin="anonymous"></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.2.2/Chart.min.js'></script>
<script src="horizontalBarPlugin.js"></script>
<script src="buildChart.js"></script>你試過嗎？這是一條帶有垂直條形圖的水平線 - 與您的情況相反。但是，也許你可以從中獲得一些有用的東西出來吧：
var chart = c3.generate({
bindto: '#chartContainer',
tooltip: {
grouped: false
},
data: {
columns: [
['data1', 30, 200, 100, 400, 150, 250],
['data2', 130, 340, 200, 500, 250, 350],
['data3', 30, 200, 100, 400, 150, 250],
['data4', 130, 340, 200, 500, 250, 350],
['data5', 130, 340, 200, 500, 250, 350],
['data6', 130, 340, 200, 500, 250, 350],
['data7', 130, 340, 200, 500, 250, 350],
['diif1', null, null, 700 ],
['diif2', null, null, 1200]
],
types:{
"data1" :"bar",
"data2" :"bar",
"data3" :"bar",
"data4" :"bar",
"data5" :"bar",
"data6" :"bar",
"data7" :"bar",
"diff1" : "line",
"diff2" : "line"
},
order:null,
groups: [
['data1', 'data2','data3', 'data4'],
['data5', 'data6','data7']
],
onclick: function (d, element) {
var name=d.name;
drilldown(name);
}
},
grid: {
y: {
lines:[{value:1400,text:1400},
{value: 1450,text: 1450}
]
}
}
});
function drilldown(name){
alert('Call for ' +name);
}
http://jsfiddle.net/9nxcfzb9/12/
我在尋找類似的給你，但不與水平條形圖的東西，但時間跨度吧，如果你有一個想法，請讓我知道： How do I change or add the vertical line on a tooltip of a c3 graph?
這正是我一直在尋找。 –