Remove x-axis label/text in chart.js

问题:

How do I hide the x-axis label/text that is displayed in chart.js ?

Setting scaleShowLabels:false only removes the y-axis labels.

<script>
    var options = {
        scaleFontColor: "#fa0",
        datasetStrokeWidth: 1,
        scaleShowLabels : false,
        animation : false,
        bezierCurve : true,
        scaleStartValue: 0,
    };
    var lineChartData = {
        labels : ["1","2","3","4","5","6","7"],
        datasets : [
            {
                fillColor : "rgba(151,187,205,0.5)",
                strokeColor : "rgba(151,187,205,1)",
                pointColor : "rgba(151,187,205,1)",
                pointStrokeColor : "#fff",
                data : [1,3,0,0,6,2,10]
            }
        ]

    }

var myLine = new Chart(document.getElementById("canvas").getContext("2d")).Line(lineChartData,options);

</script>

回答1:

UPDATE chart.js 2.1 and above

var chart = new Chart(ctx, {
    ...
    options:{
        scales:{
            xAxes: [{
                display: false //this will remove all the x-axis grid lines
            }]
        }
    }
});


var chart = new Chart(ctx, {
    ...
    options: {
        scales: {
            xAxes: [{
                ticks: {
                    display: false //this will remove only the label
                }
            }]
        }
    }
});

Reference: chart.js documentation

Old answer (written when the current version was 1.0 beta) just for reference below:

To avoid displaying labels in chart.js you have to set scaleShowLabels : false and also avoid to pass the labels:

<script>
    var options = {
        ...
        scaleShowLabels : false
    };
    var lineChartData = {
        //COMMENT THIS LINE TO AVOID DISPLAYING THE LABELS
        //labels : ["1","2","3","4","5","6","7"],
        ... 
    }
    ...
</script>

回答2:

(this question is a duplicate of In chart.js, Is it possible to hide x-axis label/text of bar chart if accessing from mobile?) They added the option, 2.1.4 (and maybe a little earlier) has it

var myLineChart = new Chart(ctx, {
    type: 'line',
    data: data,
    options: {
        scales: {
            xAxes: [{
                ticks: {
                    display: false
                }
            }]
        }
    }
}

回答3:

var lineChartData = {
    labels: ["", "", "", "", "", "", ""] // To hide horizontal labels
	,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: [28, 48, 40, 19, 86, 27, 90]
		}
	]
}



window.onload = function(){
	var options = {
		scaleShowLabels : false // to hide vertical lables
	};
	var ctx = document.getElementById("canvas1").getContext("2d");
	window.myLine = new Chart(ctx).Line(lineChartData, options);

}

回答4:

Faced this issue of removing the labels in Chartjs now. Looks like the documentation is improved. http://www.chartjs.org/docs/#getting-started-global-chart-configuration

Chart.defaults.global.legend.display = false;

this global settings prevents legends from being shown in all Charts. Since this was enough for me, I used it. I am not sure to how to avoid legends for individual charts.

回答5:

Inspired by christutty's answer, here is a solution that modifies the source but has not been tested thoroughly. I haven't had any issues yet though.

In the defaults section, add this line around line 71:

// Boolean - Omit x-axis labels
omitXLabels: true,

Then around line 2215, add this in the buildScale method:

//if omitting x labels, replace labels with empty strings           
if(Chart.defaults.global.omitXLabels){
    var newLabels=[];
    for(var i=0;i<labels.length;i++){
        newLabels.push('');
    }
    labels=newLabels;
}

This preserves the tool tips also.

回答6:

The simplest solution is:

scaleFontSize: 0

see the chart.js Document

smilar question

回答7:

If you want the labels to be retained for the tooltip, but not displayed below the bars the following hack might be useful. I made this change for use on an private intranet application and have not tested it for efficiency or side-effects, but it did what I needed.

At about line 71 in chart.js add a property to hide the bar labels:

// Boolean - Whether to show x-axis labels
barShowLabels: true,

At about line 1500 use that property to suppress changing this.endPoint (it seems that other portions of the calculation code are needed as chunks of the chart disappeared or were rendered incorrectly if I disabled anything more than this line).

if (this.xLabelRotation > 0) {
    if (this.ctx.barShowLabels) {
        this.endPoint -= Math.sin(toRadians(this.xLabelRotation)) * originalLabelWidth + 3;
    } else {
        // don't change this.endPoint
    }
}

At about line 1644 use the property to suppress the label rendering:

if (ctx.barShowLabels) {    
    ctx.fillText(label, 0, 0);
}

I'd like to make this change to the Chart.js source but aren't that familiar with git and don't have the time to test rigorously so would rather avoid breaking anything.