I'm using Chart.js v2.7.2 and want to remove the "label" field. Leaving it off returns "undefined" and the various options I've tried have done nothing. Anyone have new insight on this? Legend, title, etc all fail to remove it.
let thisChart = new Chart(gov_chart, {
type: 'horizontalBar',
data: {
label: 'I want to remove this',
labels: [data1, data2],
datasets: [{
backgroundColor: ['rgb(240,61,74)', 'rgb(0, 156, 255)'],
data: [data1.count, data2.count],
}]
},
options: {
scales: {
xAxes: [{
ticks: {
beginAtZero: true
}
}]
}
},
legend: {
display: false
},
title: {
display: false
},
tooltips: {
callbacks: {
label: function(tooltipItem) {
return tooltipItem.yLabel;
}
}
}
});
Note, the accepted answer is outdated for 3.x. To remove the legend you now have to specify the plugin. https://www.chartjs.org/docs/latest/configuration/legend.html
eg
var chart = new Chart(ctx, {
type: 'bar',
data: data,
options: {
plugins: {
legend: {
display: false
}
}
}
});
The label should be inside datasets such as
type: 'horizontalBar',
data: {
labels: [data1, data2],
datasets: [{
label: 'put it here', // => here
backgroundColor: ['rgb(240,61,74)', 'rgb(0, 156, 255)'],
data: [data1.count, data2.count],
}]
},
so you won't get undefined
Updated:
if you don't want to see it, put legend configuration inside the options. Apparently, I saw that your legend is outside options object.
options: {
legend: {
display: false
}
}
You can use filter to remove out the label you don't want to show
options: {
plugins: {
legend: {
labels: {
filter: (l) => (l.text !== 'Label you want to remove')
}
}
}
}
Update for V4:
If you want to remove x completely with labels, just add this to options:
options: {
scales: {
x: {
display: false
}
}
}
Related
I would like to change the color of my labels with Chart.s
I tried setting it in th option like
options: {
plugins: {
legend: {
labels: {
// This more specific font property overrides the global property
font: {
color: "#fff"
}
}
}
}
}
I found on an other post that I was supposed to use scaleFontColor in a function Line but it doesn't work or at least I'm not sure how to use it.
c = new Chart('canvas1',
{
type: 'bar',
data: {
labels: fullname,
datasets: [{
label: "taux d'attaque",
data: attack,
backgroundColor: '#ceade0',
borderWidth: 1,
borderColor: '#9444CC',
}]
}
})
}
}).Line(lineChartData, {
scaleFontColor: "red"
});
I'm working with Chart.js 3.8.0.
I'm trying to create custom tooltip text.
new Chart($('#truck-dwell'), {
type: 'scatter',
data: {
datasets: [{
label: 'Dwell Time (Minutes)',
data: response,
backgroundColor: Colors.Red,
}],
},
options: {
scales: {
x: {
type: 'linear',
position: 'bottom'
}
},
plugins: {
tooltips: {
callbacks: {
label: function(ctx) {
return 'Hello, World!';
}
}
}
}
}
});
Although I've found several sources say this is the newer, version 3 syntax, a breakpoint on my label function shows it is never called.
What am I missing?
Your tooltips: property name is mislabelled it should be tooltip:.
I'm using the library chartJs to display the data that i get from my MySQL database.
In the fucntion below, AddValuesToNavigatorChart takes the browsers data and the percentage data and displays them on the pie chart.
What i need to know, is how to add '%' in my labels ?
I found few answer with getContent('2d').. using the old way, but it's not working.
This is the function :
function AddValuesToNavigatorChart(browsers, percentage) {
checkNavigatorChart()
const data = {
labels: browsers,
datasets: [{
data: percentage,
backgroundColor: [
'rgb(192,192,192)',
'rgb(255,0,0)',
'rgb(0,0,0)',
'rgb(105,105,105)'
],
hoverOffset: 4
}]
};
const config = {
tooltips: {
enabled: false
},
type: 'pie',
data: data,
plugins: [ChartDataLabels],
options: {
showTooltips: false,
plugins: {
datalabels: {
color: 'rgb(255,255,255)',
borderWidth: '2',
align: 'top'
},
legend: {
position: 'bottom',
align: 'center',
labels: {
boxWidth: 12,
padding: 15,
usePointStyle: true,
pointStyle: 'circle'
}
},
title: {
text: 'Navigator Chart',
display: true,
color: 'rgb(0,0,0)',
position: 'top'
}
}
}
};
const NavigatorChart = new Chart(
document.getElementById('NavigatorChart'),
config
);
}
Please provide the version of chartjs that you are using.
Did you mean you want to show the % in the label of the tooltip?
For version v3.8.0, here is a working code I have just made, Link
As in option, you can edit the label of tooltip as you want:
options: {
plugins: {
tooltip: {
callbacks: {
label: (tooltipItem) => {
//tooltipItem is for the slice of the pie you are hovering now
return ' ' + tooltipItem.parsed + '%';
},
}
}
}
}
How can I add these styles to my graph? I'm having trouble finding it in the documentation for it, and the other forums aren't very helpful. I am using Flask for the backend, so that's why the data values look like that.
Labels on top of bars
Change font size on both axis
Set y scale as a fixed value (0,8)
<script>
var ctx = document.getElementById('myChart').getContext('2d');
var options = {
scales: {
yAxes: [{
ticks: {
fontSize: 40
}
}]
}
}
var myChart = new Chart(ctx, {
type: 'bar',
data: {
labels: ['Lithium Battery', 'Other Mfg', 'Delivery', 'Tailpipe', 'Fuel Cycle', 'Disposal', 'Total'],
datasets: [{
label: 'ICEV CAR (MTCO2e/Year)',
labels: [
"{{data['battery_icev_car']}}",
"{{data['other_mfg_icev_car']}}",
"{{data['delivery_icev_car']}}",
"{{data['tailpipe_icev_car']}}",
"{{data['fuel_cycle_icev_car']}}",
"{{data['disposal_icev_car']}}",
"{{data['total_icev_car']}}"
],
data: [ /* errors are normal, fixes when server ru
[0, {{data['y1_icev']}}],
[{{data['y1_icev']}}, {{data['y2_icev']}}],
[{{data['y2_icev']}}, {{data['y3_icev']}}],
[{{data['y3_icev']}}, {{data['y4_icev']}}],
[{{data['y4_icev']}}, {{data['y5_icev']}}],
[{{data['y5_icev']}}, {{data['y6_icev']}}],
[0, {{data['y6_icev']}}]
],
backgroundColor: [
'rgba(0,0,0,0.9)'
],
borderColor: [
'rgba(0,0,0,1)'
],
borderWidth: 1,
borderSkipped: false
}]
},
options: {
responsive: true,
plugins: {
legend: {
labels: {
// This doesn't work on axis
font: {
size: 20
}
}
}
},
y: {
beginAtZero: true
}
}
});
</script> </script>
Since your config is not working I assume you are using V3, in which case the solution is as followed:
For point one you need to use an external plugin, you can write your own or use the datalabels plugin
For your second problem you need to style it as a font object as told in the documentation like so:
options: {
scales: {
y:{
ticks:{
font:{
size: 50
}
}
}
}
}
For your last part you can set the stepSize to 0.8
I have chart which show 3 types of label
I want to keep two of them and want to hide one Invoice Income Report. How can I hide that one label? I am using chart.js v2
var myChart = new Chart(ctx, {
type: 'bar',
data: {
labels: labels,
datasets: [{
label: 'Invoice Income Report',
data: bar_chart_data,
backgroundColor: colors,
borderWidth: 1
}, {
label: 'Below Average',
backgroundColor: ['rgba(255, 99, 132, 1)']
}, {
label: 'Above Average',
backgroundColor: ['rgba(11, 156, 49, 1)']
}]
},
options: {
scales: {
y: {
beginAtZero: true
}
},
}
});
You can simply make display false.
const options = {
responsive: true,
plugins: {
legend: {
position: 'top' as const,
display: false,
},
title: {
display: false,
text: 'Chart.js Line Chart',
},
},
};
To hide the labels on version 4.2.1 of chart.js use this:
// Example chart.
const chart = new Chart(id, {
type: 'bar', // Chart type.
data: data, // Your data.
options: {
// Add plugins to options.
plugins: {
legend: {
display: false // This hides all text in the legend and also the labels.
}
}
// add your scales or other options.
}
});
For more info use the doc: https://www.chartjs.org/docs/latest/configuration/legend.html
In chart.js, You can hide the labels using legend attribute. Add the following code in options of chart.js
legend: {
display: false
}
According to your code, after adding legend the options will be .....
options: {
scales: {
y: {
beginAtZero: true
}
},
legend: {
display: false
}
}
Add legend option to options configuration, set display to false:
, options: {
scales: {
y: {
beginAtZero: true
}
},
legend: {
display: false
}
}
docs3:https://www.chartjs.org/docs/latest/configuration/legend.html
docs2:https://www.chartjs.org/docs/2.6.0/configuration/legend.html