https://i.sstatic.net/ZKkXT.png
Is it possible to add directional arrows on the Y and X axis of a ChartJS graph? I'm seeking advice or tips on how to achieve this.
Below is the code snippet for creating the chart.
var ctx = $("#mycanvas");
var LineGraph = new Chart(ctx, {
type: 'line',
data: chartdata});
Bs
Give this a try! I'm not entirely sure if it will fulfill your needs.
<canvas id="myChart" width="800" height="400"></canvas>
Chart.types.Line.extend({
name: "LineAlt",
draw: function () {
Chart.types.Line.prototype.draw.apply(this, arguments);
var ctx = this.chart.ctx;
ctx.save();
// text alignment and color
ctx.textAlign = "center";
ctx.textBaseline = "bottom";
ctx.fillStyle = this.options.scaleFontColor;
// position
var x = this.scale.xScalePaddingLeft * 0.4;
var y = this.chart.height / 2;
// change origin
ctx.translate(x, y)
// rotate text
ctx.rotate(-90 * Math.PI / 180);
ctx.fillText(this.datasets[0].label, 0, 0);
ctx.restore();
}
});
var data = {
labels: ["January", "February", "March", "April", "May", "June", "July"],
datasets: [
{
label: "My First dataset",
fillColor: "rgba(220,220,220,0.2)",
strokeColor: "rgba(220,220,220,1)",
pointColor: "rgba(220,220,220,1)",
pointStrokeColor: "#fff",
pointHighlightFill: "#fff",
pointHighlightStroke: "rgba(220,220,220,1)",
data: [65, 59, 80, 81, 56, 55, 40]
},
{
label: "My Second dataset",
fillColor: "rgba(151,187,205,0.2)",
strokeColor: "rgba(151,187,205,1)",
pointColor: "rgba(151,187,205,1)",
pointStrokeColor: "#fff",
pointHighlightFill: "#fff",
pointHighlightStroke: "rgba(151,187,205,1)",
data: [28, 48, 40, 19, 86, 27, 90]
}
]
};
var ctx = document.getElementById("myChart").getContext("2d");
var myLineChart = new Chart(ctx).LineAlt(data, {
// create additional space on the right side of the graph
scaleLabel: " <%=value%>"
});
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