I am generating charts with ChartJS v3.3.2. I don't want to show the legends. So I've set legend: { display: false } but the legends are still showing.
How can I fix this ?
here's my options object:
const config = {
type: 'bar',
data,
options: {
legend: {
display: false,
},
tooltips: {
enabled: false,
},
responsive: true,
},
};
As descripbed in the migration docs and the namespace in the legend config page in the docs it states that to configure the legend you need to put it in the plugins part of the config since its an internal plugin.
Migration docs: https://www.chartjs.org/docs/master/getting-started/v3-migration.html#specific-changes
Legend docs: https://www.chartjs.org/docs/master/configuration/legend.html#configuration-options
Working Example:
let config01 = {
type: 'doughnut',
data: {
labels: [
'Part 01',
'Part 02',
'Part 03'
],
datasets: [{
data: [2000, 1000, 600],
backgroundColor: [
'rgb(0, 76, 138)',
'rgb(50, 151, 230)',
'rgb(250, 202, 55)',
],
hoverOffset: 10
}]
},
options: {
plugins: {
legend: {
display: false
},
},
}
};
var ctx = document.getElementById('myChart-01').getContext('2d');
new Chart(ctx, config01);
<div>
<canvas id="myChart-01" width="200px" height="200px"></canvas>
<script src="https://cdn.jsdelivr.net/npm/chart.js#3.3.2/dist/chart.min.js"></script>
</div>
Related
I'm new to chart.js, and I have a question about making x-axis labels position to the top.
This is the result that I expected: x-axis labels are on the top.
And this is my attempt:
const ctx = document.getElementById('weather_chart');
const myChart = new Chart(ctx, {
data: {
datasets: [{
type: 'bar',
label: 'rainfall probability',
data: [10, 20, 30, 40],
}, {
type: 'line',
label: 'temperature',
data: [50, 50, 50, 50],
borderColor: '#EB6E4B',
backgroundColor: '#EB6E4B',
}],
labels: ['now', '9am', '10am', '11am', '12pm'],
},
options: {
plugins: {
legend: {
display: false,
},
}
}
});
<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
<div id="chart">
<canvas id="weather_chart"></canvas>
</div>
If it is possible, would you take your time to write the answer?
Thanks in advance, and if my question is insufficient, I would appreciate it if you could tell me.
You can configure all scale related things like position in this namepsaces: options.scales[scaleId]. For more config options of the scales you can read the documentation: https://www.chartjs.org/docs/master/axes/
const ctx = document.getElementById('weather_chart');
const myChart = new Chart(ctx, {
data: {
datasets: [{
type: 'bar',
label: 'rainfall probability',
data: [10, 20, 30, 40],
}, {
type: 'line',
label: 'temperature',
data: [50, 50, 50, 50],
borderColor: '#EB6E4B',
backgroundColor: '#EB6E4B',
}],
labels: ['now', '9am', '10am', '11am', '12pm'],
},
options: {
scales: {
x: {
position: 'top'
}
},
plugins: {
legend: {
display: false,
},
}
}
});
<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
<div id="chart">
<canvas id="weather_chart"></canvas>
</div>
inside options > scales > xAxes the xAxes is an array, so we can define multiple axis and there configuration like this:
options:{
scales: {
xAxes: [
{
position: 'top',
ticks: {
maxRotation: 90,
minRotation: 80
}
}
]
}
}
Checkout the example here
https://codepen.io/ganeshbkdm/pen/oNeaOwm
I am really stuck at the moment.
Using Chart.js v3.2.1 to display some charts, which were working great.
Then when I attempted use the chartjs-plugin-datalabels plugin to display labels on a Doughnut chart, that chart no longer displays.
I can't see what I've done wrong. I'm in need of help!
Note: There are a lot of questions similar to this on Google and Stackoverflow but most of them are about previous versions, but my work has only approved for me to be working with the lastst version of Chart.JS.
//DOUGHNUT GRAPH
var doughnutChartData = {
labels: [
'Dr # Fault',
'TP # Fault',
'Wthr Evt',
'Other'
],
datasets: [
{
label: "slices",
borderWidth: 3,
data: [2,3,2,1],
backgroundColor: [
'#D6001C',
'#00A3E0',
'#52A886',
'#2E3138'
],
borderColor: [
'#fff',
'#fff',
'#fff',
'#fff'
]
}
]
};
//DOUGHNUT CHART OPTIONS
var doughnutChartOptions = {
responsive: true,
plugins: {
datalabels: {
formatter: function (value, context) {
return context.chart.data.labels[
context.dataIndex
];
},
},
title: {
display: true,
text: "Reported Fault Allocation",
color: "#D6001C",
font: {
family: "AvenirNextLTW01-Regular",
size: 16,
style: 'normal'
}
},
legend: {
display: false
}
},
scales: {
x: {
grid: {
display: false,
drawBorder: true
}
},
y: {
grid: {
display: true,
drawBorder: true,
},
},
},
elements: {
point: {
radius: 0
}
},
}
//DISPLAY DOUGHNUT GRAPH
var ctx = document.getElementById("canvas3-detailed").getContext("2d");
window.myDoughnut = new Chart(ctx, {
plugins: [ChartDataLabels],
type: "doughnut",
data: doughnutChartData,
options: doughnutChartOptions
});
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/chart.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/chartjs-plugin-datalabels#2"></script>
<canvas id="canvas3-detailed"></canvas>
The link for your Plugin is broken. You need to remove #2 from the end:
https://cdn.jsdelivr.net/npm/chartjs-plugin-datalabels
There is also the not defined error because you reference ChartDataLabels which has not been declared. You need to put it in a string:
//DOUGHNUT GRAPH
var doughnutChartData = {
labels: [
'Dr # Fault',
'TP # Fault',
'Wthr Evt',
'Other'
],
datasets: [
{
label: "slices",
borderWidth: 3,
data: [2,3,2,1],
backgroundColor: [
'#D6001C',
'#00A3E0',
'#52A886',
'#2E3138'
],
borderColor: [
'#fff',
'#fff',
'#fff',
'#fff'
]
}
]
};
//DOUGHNUT CHART OPTIONS
var doughnutChartOptions = {
responsive: true,
plugins: {
datalabels: {
formatter: function (value, context) {
return context.chart.data.labels[
context.dataIndex
];
},
},
title: {
display: true,
text: "Reported Fault Allocation",
color: "#D6001C",
font: {
family: "AvenirNextLTW01-Regular",
size: 16,
style: 'normal'
}
},
legend: {
display: false
}
},
scales: {
x: {
grid: {
display: false,
drawBorder: true
}
},
y: {
grid: {
display: true,
drawBorder: true,
},
},
},
elements: {
point: {
radius: 0
}
},
}
//DISPLAY DOUGHNUT GRAPH
var ctx = document.getElementById("canvas3-detailed").getContext("2d");
window.myDoughnut = new Chart(ctx, {
plugins: ["ChartDataLabels"],
type: "doughnut",
data: doughnutChartData,
options: doughnutChartOptions
});
<script src="https://cdn.jsdelivr.net/npm/chartjs-plugin-datalabels"></script>
<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
<canvas id="canvas3-detailed"></canvas>
I found out that the version of the plugin I used was incorrect. I have now updated and it is displaying with labels!
//DOUGHNUT GRAPH
var doughnutChartData = {
labels: [
'Dr # Fault',
'TP # Fault',
'Wthr Evt',
'Other'
],
datasets: [{
label: "slices",
borderWidth: 3,
data: [2, 3, 2, 1],
backgroundColor: [
'#D6001C',
'#00A3E0',
'#52A886',
'#2E3138'
],
borderColor: [
'#fff',
'#fff',
'#fff',
'#fff'
]
}]
};
//DOUGHNUT CHART OPTIONS
var doughnutChartOptions = {
responsive: true,
plugins: {
datalabels: {
color: 'white',
formatter: function (value, context) {
return context.chart.data.labels[
context.dataIndex
];
},
},
title: {
display: true,
text: "Reported Fault Allocation",
color: "#D6001C",
font: {
family: "AvenirNextLTW01-Regular",
size: 16,
style: 'normal'
}
},
legend: {
display: false
}
},
scales: {
x: {
grid: {
display: false,
drawBorder: true
}
},
y: {
grid: {
display: true,
drawBorder: true,
},
},
},
elements: {
point: {
radius: 0
}
},
}
//DISPLAY DOUGHNUT GRAPH
var ctx = document.getElementById("canvas3-detailed").getContext("2d");
window.myDoughnut = new Chart(ctx, {
plugins: [ChartDataLabels],
type: "doughnut",
data: doughnutChartData,
options: doughnutChartOptions
});
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/chart.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/chartjs-plugin-datalabels#2.0.0-rc"></script>
<canvas id="canvas3-detailed"></canvas>
I have used horizontal bar chart from chart.js where i need percentage values to be shown next to each bar at right side? here is the bar sample image.
click here to view sample image of bar chart
Also these are the options i have tried :
xAxes: [
{
ticks: {
min: 0,
max: 100
},
grid: {
offset: false
}
},
],
yAxes: [
{
gridLines: {
display: false,
},
display: "right",
barPercentage: 0.8,
minBarLength: 2,
},
],
Is there any option which can turn the percentage values on at he right side of the horizontal bar chart?
Please click below image to see the expected output
click image expected output
You can make use of the datalabels plugin
Example:
<script src="https://cdn.jsdelivr.net/npm/chart.js#3.3.0/dist/chart.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/chartjs-plugin-datalabels#2.0.0-rc"></script>
<canvas id="myChart" width="850" height="520"></canvas>
<script>
var ctx = document.getElementById('myChart');
Chart.register(ChartDataLabels);
Chart.defaults.set('plugins.datalabels', {
color: '#FE777B'
});
var myChart = new Chart(ctx, {
type: 'bar',
plugins: [ChartDataLabels],
data: {
labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
data: [12, 19, 3, 5, 2, 3],
label: 'Advisor Closed MTD',
backgroundColor: 'rgb(192,111,94)',
barThickness: 25,
datalabels: {
color: '#FFCE56'
}
}],
},
options: {
indexAxis: 'y',
responsive: false,
plugins: {
datalabels: {
formatter: (val, context) => (`${val}%`),
anchor: 'end',
align: 'end',
labels: {
value: {
color: 'blue'
}
}
}
}
}
});
</script>
I can't figure out for the life of me why when I add a funnel chart to my chartjs charts all of the charts become compressed distorted upon loading. Whenever I resize the page the charts snap back to how I would expect them to load. Thanks for the help.
https://jsfiddle.net/nmp0tfh1/1/
require.config({
paths: {
chart: "//cdnjs.cloudflare.com/ajax/libs/Chart.js/2.7.2/Chart.min",
datalabels: "//cdn.jsdelivr.net/npm/chartjs-plugin-datalabels#0.3.0/dist/chartjs-plugin-datalabels.min",
gauge: "//unpkg.com/chartjs-gauge#0.2.0/dist/chartjs-gauge.min",
funnel: "//cdn.jsdelivr.net/npm/chartjs-funnel#1.0.5/dist/chart.funnel.min"
},
map: {
datalabels: {
"chart.js": "chart"
},
gauge: {
"chart.js": "chart"
},
funnel: {
"chart.js": "chart"
},
}
});
require(["chart", "datalabels", "gauge", "funnel"], function(chart) {
var ctx = document.getElementById("chart").getContext('2d');
var chrt = new chart.Chart(ctx, {
type: 'gauge',
data: {
labels: ['Red', 'Yellow', 'Green'],
datasets: [{
data: [25, 50, 75],
value: 55,
backgroundColor: ['red', 'yellow', 'green'],
borderWidth: 2
}]
},
options: {
responsive: true,
title: {
display: true,
text: 'Gauge chart with datalabels plugin displaying labels'
},
layout: {
padding: {
bottom: 30
}
},
needle: {
// Needle circle radius as the percentage of the chart area width
radiusPercentage: 2,
// Needle width as the percentage of the chart area width
widthPercentage: 3.2,
// Needle length as the percentage of the interval between inner radius (0%) and outer radius (100%) of the arc
lengthPercentage: 80,
// The color of the needle
color: 'rgba(0, 0, 0, 1)'
},
valueLabel: {
display: false
},
plugins: {
datalabels: {
display: true,
formatter: function(value, context) {
return context.chart.data.labels[context.dataIndex];
},
//color: function (context) {
// return context.dataset.backgroundColor;
//},
color: 'rgba(0, 0, 0, 1.0)',
//color: 'rgba(255, 255, 255, 1.0)',
backgroundColor: null,
font: {
size: 20,
weight: 'bold'
}
}
}
}
});
var ctx = document.getElementById("chart1").getContext('2d');
var chrt = new chart.Chart(ctx, {
type: 'pie',
data: {
datasets: [{
data: [30, 60, 90],
backgroundColor: [
"#FF6384",
"#36A2EB",
"#FFCE56"
],
hoverBackgroundColor: [
"#FF6384",
"#36A2EB",
"#FFCE56"
]
}],
labels: [
"Red",
"Blue",
"Yellow"
],
},
options: {
responsive: true,
title: {
display: true,
text: "chart title"
},
},
});
var ctx = document.getElementById("chart2").getContext('2d');
var chrt = new chart.Chart(ctx, {
type: 'funnel',
data: {
datasets: [{
data: [30, 60, 90],
backgroundColor: [
"#FF6384",
"#36A2EB",
"#FFCE56"
],
hoverBackgroundColor: [
"#FF6384",
"#36A2EB",
"#FFCE56"
]
}],
labels: [
"Red",
"Blue",
"Yellow"
],
},
options: {
responsive: true,
title: {
display: true,
text: "chart title"
},
},
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.3.5/require.js"></script>
<canvas id="chart" width="400" height="400"></canvas>
<canvas id="chart1" width="400" height="400"></canvas>
<canvas id="chart2" width="400" height="400"></canvas>
before resize
after resize
The datalabels plugin fails on your funnel chart because it cant find an x axis and cant fix it since it doesnt understand the chart since its a custom chart. If you set display to false in the options for your funnel chart it will work.
options: {
responsive: true,
title: {
display: true,
text: "chart title"
},
plugins: {datalabels: {display: false}}
},
Live example: https://codepen.io/leelenaleee/pen/JjbNLpQ
This is my code
var ctx = document.getElementById("myChart").getContext('2d');
var myChart = new Chart(ctx, {
type: 'line',
data: {
labels: [{{ $nDate }}],
datasets: [{
label: 'All Users',
data: [ {{ $nUser }} ],
backgroundColor: ['rgba(54, 162, 235, 0.2)'],
borderColor: ['rgba(54, 162, 235, 1)'],
borderWidth: 3,
lineTension: 0,
labelFontSize : '16',
}]
},
options: {
tooltips: {
mode: 'index',
intersect: false,
position: 'nearest'
},
responsive: false,
legend: { display: false },
scales: {
yAxes: [{
ticks: {
beginAtZero:true,
type: 'category',
labelOffset: 10,
stepSize:250,
callback: function(value, index) {
if (value !== 0) return value;
}
},
gridLines:{
drawBorder:false
}
}],
xAxes: [{
gridLines: {
display: false,
},
}],
},
plugins:{
datalabels:{
display:false
}
}
}
});
My output
My Expected Output
How can I able to put/edit custom tooltip in my line chart? I just want to get the exact tooltips in the second picture but I don't have any idea how to fix it? Another thing is my $nDateI only want to show four dates like 8,15,22,29 But when I tried to create a new array label with value of this [" ", " "]; my chart crashed.
You can use custom callback function to render with your own choice html tags and colors, Follow the official documentation link for further guidance.
http://www.chartjs.org/docs/latest/configuration/tooltip.html#external-custom-tooltips
options: {
tooltips: {
enabled: false,
custom: function(tooltipModel) {}
}
}