I need help on bar thickness using chart.js v3.5
Issue: I set the bar thickness "barThickness: 55," and after in responsive I don't know to manage it in responsive
here is my code which I have used, Please let me know what should I do for the solution. Thanks.
Here I Have the issue which is created in responsive, have a look on the image url : image link
var myNewChartB = new Chart(ctx, {
type: "bar",
data: barData,
options: {
borderSkipped: false,
borderRadius: 3,
plugins: {
barRoundness: 1,
legend: {
display: false,
},
title: {
font: {
size: 16
},
display: true,
text: 'Researchers (n=3)',
padding: {
left: 0,
right: 0,
top: 0,
bottom: 0
}
},
datalabels: {
display: true,
clamp: true,
formatter: (val, context) => (`${val}%`),
anchor: 'start',
align: 'end',
}
},
responsive: true,
tooltips: {
enabled: false,
},
barThickness: 55,
maintainAspectRatio: false,
scales: {
x: {
display: true,
title: {
font: {
size: 16,
},
display: true,
text: "Scroes (1-9)",
},
grid: {
display: false,
drawBorder: false, //<- set this
},
},
y: {
display: true,
ticks: {
display: false
},
title: {
font: {
size: 16
},
display: true,
text: "% of Respondants",
},
grid: {
color: '#9B9898',
drawBorder: false, //<- set this
},
},
},
},
});
I have Created a snippet. Take a look. Charts are responsive automatically.
I didn't know from where this data: barData, is coming. So I have created my own dataset.
const ctx = document.getElementById('myNewChartB').getContext('2d');
const myNewChartB = new Chart(ctx, {
type: "bar",
data: {
labels: ['Red', 'Blue', 'Yellow', 'Green', 'Purple', 'Orange'],
datasets: [{
label: '# of Votes',
data: [12, 19, 3, 5, 2, 3],
backgroundColor: [
'rgba(255, 99, 132, 0.2)',
'rgba(54, 162, 235, 0.2)',
'rgba(255, 206, 86, 0.2)',
'rgba(75, 192, 192, 0.2)',
'rgba(153, 102, 255, 0.2)',
'rgba(255, 159, 64, 0.2)'
],
borderColor: [
'rgba(255, 99, 132, 1)',
'rgba(54, 162, 235, 1)',
'rgba(255, 206, 86, 1)',
'rgba(75, 192, 192, 1)',
'rgba(153, 102, 255, 1)',
'rgba(255, 159, 64, 1)'
],
borderWidth: 55
}]
},
options: {
borderSkipped: false,
borderRadius: 3,
plugins: {
barRoundness: 1,
legend: {
display: false,
},
title: {
font: {
size: 16
},
display: true,
text: 'Researchers (n=3)',
padding: {
left: 0,
right: 0,
top: 0,
bottom: 0
}
},
datalabels: {
display: true,
clamp: true,
formatter: (val, context) => (`${val}%`),
anchor: 'start',
align: 'end',
}
},
responsive: true,
tooltips: {
enabled: false,
},
barThickness: 55,
maintainAspectRatio: false,
scales: {
x: {
display: true,
title: {
font: {
size: 16,
},
display: true,
text: "Scroes (1-9)",
},
grid: {
display: false,
drawBorder: false, //<- set this
},
},
y: {
display: true,
ticks: {
display: false
},
title: {
font: {
size: 16
},
display: true,
text: "% of Respondants",
},
grid: {
color: '#9B9898',
drawBorder: false, //<- set this
},
},
},
},
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/3.7.1/chart.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>
<canvas id="myNewChartB" width="400" height="400"></canvas>
Related
I am using charts.js to create a charts for my website.
I am unable the remove the legend from the chart.
I did not found the solution. This is the first time I am using charts.js library.
code:
const ctx1 = document.getElementById('yearWise').getContext('2d');
const yearWise = new Chart(ctx1, {
type: 'bar',
plugins: [ChartDataLabels],
data: {
legend: 'options',
labels: ['2018-19','2019-20','2020-21','2021-22'],
datasets: [{
data: [90,400,5245,5122],
backgroundColor: [
// 'rgba(255, 99, 132, 0.5)',
'rgba(70, 132, 238, 0.5)',
],
borderColor: [
// 'rgba(255, 99, 132, 1)',
'rgba(70, 132, 238, 1)',
],
borderWidth: 1
}]
},
options: {
legend: {
display: false,
},
responsive: true,
scales: {
y: {
beginAtZero: true,
}
},
plugins: {
title: {
display: true,
text: 'Programs Conducted - Year Wise',
},
datalabels: {
anchor: 'end',
align: 'end',
labels: {
value: {
color: 'rgba(70, 132, 238, 1)'
}
}
},
},
}
});
Thanks in advance.
Here is the documentation
https://www.chartjs.org/docs/latest/configuration/legend.html
you can simply set legend.display to false.
options: {
plugin: {
legend: {
display: false,
}
}
}
You can try it here
https://codesandbox.io/s/wonj2xn23w?file=/src/index.js
I'm trying to use chartjs-datalabels-plugin to show values on the chart. but I can't make it work on jsfiddle
Here's my code
<div class="graph">
<div class="chart-legend">
</div>
<div class="chart">
<canvas id="myChart" height = 60></canvas>
</div>
</div>
I import chartjs-datalabels-plugin in jsfiddle and then in options I enable the display option to true. but no value is shown in the chart.
var ctx = $('#myChart');
ctx.height(100);
var myChart = new Chart(ctx, {
....
maintainAspectRatio: false,
options: {
plugins: {
datalabels: {
color: 'black',
display: true,
font: {
weight: 'bold'
},
formatter: Math.round
}
},
legend: {
display: false
},
maintainAspectRatio: false,
scales: {
yAxes: [{
stacked: true,
gridLines: {
display: false,
drawBorder: false,
},
ticks: {
beginAtZero: true,
},
barThickness: 9
}],
xAxes: [{
stacked: true,
gridLines: {
display: false,
drawBorder: false,
},
ticks: {
beginAtZero: true,
suggestedMax: 100,
display: false
},
barThickness: 9
}]
}
}
});
Datalabels plugin requires Chart.js 2.7.0 or later.
In your fiddle you used 2.4.0 version.
var ctx = $('#myChart');
ctx.height(100);
var myChart = new Chart(ctx, {
type: 'horizontalBar',
data: {
height: 200,
labels: ["Red"],
datasets: [{
label: '# of Votes',
data: [12],
backgroundColor: [
'#F4B266',
'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)'
],
borderWidth: 1
},
{
label: '# of Votes',
data: [18],
backgroundColor: [
'#AEB7B2',
'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)'
],
borderWidth: 1
}
]
},
maintainAspectRatio: false,
options: {
plugins: {
datalabels: {
color: 'black',
display: function(context) {
return context.dataset.data[context.dataIndex] > 15;
},
font: {
weight: 'bold'
},
formatter: Math.round
}
},
legend: {
display: false
},
maintainAspectRatio: false,
scales: {
yAxes: [{
stacked: true,
gridLines: {
display: false,
drawBorder: false,
},
ticks: {
beginAtZero: true,
},
barThickness: 9
}],
xAxes: [{
stacked: true,
gridLines: {
display: false,
drawBorder: false,
},
ticks: {
beginAtZero: true,
suggestedMax: 100,
display: false
},
barThickness: 9
}]
}
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.7.2/Chart.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/chartjs-plugin-datalabels#0.2.0/dist/chartjs-plugin-datalabels.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="graph">
<div class="chart-legend">
</div>
<div class="chart">
<canvas id="myChart" height = 60></canvas>
</div>
</div>
I'm using chart.js on a project, a canvas on the html.
However, the data i'm inputting there doesn't go along with the label.
The data bars are not following the axes properly. Is there a way to add a padding, to the bar? Or something similar?
I've tried many ways, but can't get it right.
Here is my config:
$(window).on("load", function(){
//Get the context of the Chart canvas element we want to select
var ctx = $("#bar-multi-axis");
// Chart Options
var chartOptions = {
responsive: true,
maintainAspectRatio: false,
responsiveAnimationDuration:500,
hoverMode: 'label',
stacked: false,
title:{
display:false,
text:"Chart.js Bar Chart - Multi Axis"
},
scales: {
xAxes: [{
type: "linear", // only linear but allow scale type registration. This allows extensions to exist solely for log scale for instance
display: true,
position: "bottom",
id: "x-axis-1",
gridLines: {
color: "#f3f3f3",
drawTicks: true,
},
scaleLabel: {
display: true,
}
}, {
type: "linear", // only linear but allow scale type registration. This allows extensions to exist solely for log scale for instance
display: false,
position: "bottom",
id: "x-axis-2",
gridLines: {
drawOnChartArea: false
}
}],
yAxes: [{
display: true,
gridLines: {
color: "#f3f3f3",
drawTicks: true,
},
scaleLabel: {
display: false,
}
}]
}
};
// Chart Data
var chartData = {
labels: ["Ações", "Opções", "Termo", "BM&F", "Garantias","Tesouro Direto","Financeiro","BTC","Renda Fixa","Clubes e fundos"],
datasets: [{
label: "Ações",
data: [45],
backgroundColor: "#5175E0",
hoverBackgroundColor: "rgba(81,117,224,.8)",
borderColor: "transparent",
xAxisID: "x-axis-1",
}, {
label: "Opções",
data: [28],
backgroundColor: "#16D39A",
hoverBackgroundColor: "rgba(22,211,154,.8)",
borderColor: "transparent",
xAxisID: "x-axis-1",
},
{
label: "Termo",
data: [-40],
backgroundColor: "#F98E76",
hoverBackgroundColor: "rgba(249,142,118,.8)",
borderColor: "transparent",
xAxisID: "x-axis-1",
},
{
label: "BM&F",
data: [25],
backgroundColor: "#F00E76",
hoverBackgroundColor: "rgba(249,142,118,.8)",
borderColor: "transparent",
xAxisID: "x-axis-1",
},
{
label: "Garantias",
data: [-16],
backgroundColor: "#E12E76",
hoverBackgroundColor: "rgba(249,142,118,.8)",
borderColor: "transparent",
xAxisID: "x-axis-1",
},
{
label: "Tesouro Direto",
data: [10],
backgroundColor: "#E98A76",
hoverBackgroundColor: "rgba(249,142,118,.8)",
borderColor: "transparent",
xAxisID: "x-axis-1",
},
{
label: "Financeiro",
data: [-12],
backgroundColor: "#F98A76",
hoverBackgroundColor: "rgba(249,142,118,.8)",
borderColor: "transparent",
xAxisID: "x-axis-1",
},
{
label: "BTC",
data: [50],
backgroundColor: "#F18E76",
hoverBackgroundColor: "rgba(249,142,118,.8)",
borderColor: "transparent",
xAxisID: "x-axis-1",
},
{
label: "Renda Fixa",
data: [24],
backgroundColor: "#D98E76",
hoverBackgroundColor: "rgba(249,142,118,.8)",
borderColor: "transparent",
xAxisID: "x-axis-1",
},
{
label: "Clubes e fundos",
data: [-24],
backgroundColor: "#A98E76",
hoverBackgroundColor: "rgba(249,142,118,.8)",
borderColor: "transparent",
xAxisID: "x-axis-1",
}]
};
var config = {
type: 'horizontalBar',
// Chart Options
options : chartOptions,
data : chartData
};
// Create the chart
var lineChart = new Chart(ctx, config);
});
I suggest to use only one dataset and define specific color for each bar using an array asbackgroundColor property:
datasets: [{
label: "my set",
data: [45, 28, -40, 25, -16, 10, -12, 50, 24, -24],
backgroundColor: ["rgba(255, 99, 132, 0.6)", "rgba(255, 159, 64, 0.6)", "rgba(255, 205, 86, 0.6)", "rgba(75, 192, 192, 0.6)", "rgba(54, 162, 235, 0.6)", "rgba(153, 102, 255, 0.6)", "rgba(201, 203, 207, 0.6)", "rgba(155, 99, 132, 0.6)","rgba(255, 99, 32, 0.6)"],
borderColor: "transparent",
xAxisID: "x-axis-1",
}]
Check my fiddle: https://jsfiddle.net/beaver71/2hp160zh/
// Chart Options
var chartOptions = {
responsive: true,
maintainAspectRatio: false,
responsiveAnimationDuration:500,
hoverMode: 'label',
stacked: false,
legend: {display:false,},
title:{
display:false,
text:"Chart.js Bar Chart - Multi Axis"
},
scales: {
xAxes: [{
type: "linear", // only linear but allow scale type registration. This allows extensions to exist solely for log scale for instance
display: true,
position: "bottom",
id: "x-axis-1",
gridLines: {
color: "#f3f3f3",
drawTicks: true,
},
scaleLabel: {
display: true,
}
}, {
type: "linear", // only linear but allow scale type registration. This allows extensions to exist solely for log scale for instance
display: false,
position: "bottom",
id: "x-axis-2",
gridLines: {
drawOnChartArea: false
}
}],
yAxes: [{
display: true,
type: 'category',
gridLines: {
color: "#f3f3f3",
drawTicks: true,
},
scaleLabel: {
display: false,
}
}]
}
};
// Chart Data
var chartData = {
labels: ["Ações", "Opções", "Termo", "BM&F", "Garantias","Tesouro Direto","Financeiro","BTC","Renda Fixa","Clubes e fundos"],
datasets: [{
label: "my set",
data: [45, 28, -40, 25, -16, 10, -12, 50, 24, -24],
backgroundColor: ["rgba(255, 99, 132, 0.6)", "rgba(255, 159, 64, 0.6)", "rgba(255, 205, 86, 0.6)", "rgba(75, 192, 192, 0.6)", "rgba(54, 162, 235, 0.6)", "rgba(153, 102, 255, 0.6)", "rgba(201, 203, 207, 0.6)", "rgba(155, 99, 132, 0.6)","rgba(255, 99, 32, 0.6)"],
borderColor: "transparent",
xAxisID: "x-axis-1",
}]
};
var config = {
type: 'horizontalBar',
options : chartOptions,
data : chartData
};
var lineChart = new Chart('myChart', config);
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.7.1/Chart.bundle.min.js"></script>
<canvas id="myChart" width="400" height="600"></canvas>
I'm making a chart with chart.js and I'm trying to figure out how I can change the label/legend styling.
I want to remove the rectangle part and instead use a circle. I've read that you can make your custom legend (using legendCallback), but for the life of me I cannot figure out how to do it. This is how my chart looks now - image.
This is my HTML:
<div class="container">
<canvas id="myChart"></canvas>
</div>
And this is my JS:
var ctx = document.getElementById("myChart");
var myChart = new Chart(ctx, {
type: 'line',
data: {
labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
label: 'Link One',
data: [1, 2, 3, 2, 1, 1.5, 1],
backgroundColor: [
'#D3E4F3'
],
borderColor: [
'#D3E4F3',
'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
}]
},
options: {
legend: {
display: true,
position: 'bottom',
labels: {
fontColor: '#333',
}
}
}
});
I'm new to JS in general, so please be as specific as possible with your answers. Thank you so much!
No need to use legendCallback function. You can set usePointStyle = true to turn that rectangle into a circle.
Chart.defaults.global.legend.labels.usePointStyle = true;
var ctx = document.getElementById("myChart").getContext("2d");
var myChart = new Chart(ctx, {
type: 'line',
data: {
labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
label: 'Link One',
data: [1, 2, 3, 2, 1, 1.5, 1],
backgroundColor: [
'#D3E4F3'
],
borderColor: [
'#D3E4F3',
'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
}]
},
options: {
legend: {
display: true,
position: 'bottom',
labels: {
fontColor: '#333'
}
}
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.5.0/Chart.min.js"></script>
<div class="container">
<canvas id="myChart"></canvas>
</div>
for angular4-chart.js you could use the options attribute like so:
options = {
legend:{
display: true,
labels: {
usePointStyle: true,
}
}
}
Step 1:
Change options to this:
options: {
legend: {
display: false,
}
}
Step 2:
Append to your canvas this code (just after canvas):
<div id='chartjsLegend' class='chartjsLegend'></div> //Or prepend to show the legend at top, if you append then it will show to bottom.
Step 3:
Generate this legend instead of default with this (just after mychart):
document.getElementById('chartjsLegend').innerHTML = myChart.generateLegend();
Step 4:
Make css so it generates as circle:
.chartjsLegend li span {
display: inline-block;
width: 12px;
height: 12px;
margin-right: 5px;
border-radius: 25px;
}
Step 5:
Change css with what ever you feel like should be better.
Time for some chimichangas now.
Use usePointStyle:true
var ctx = document.getElementById("myChart");
var myChart = new Chart(ctx, {
type: 'line',
data: {
labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
label: 'Link One',
data: [1, 2, 3, 2, 1, 1.5, 1],
backgroundColor: [
'#D3E4F3'
],
borderColor: [
'#D3E4F3',
'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
}]
},
options: {
legend: {
display: true,
position: 'bottom',
labels: {
fontColor: '#333',
usePointStyle:true
}
}
}
});
Additional information on #GRUNT 's answer
I assign usePointStyle inside legend.labels not what #GRUNT did Chart.defaults.global.legend.labels.usePointStyle = true;
This is useful when you are using react
legend: {
labels: {
usePointStyle: true,
},
}
more info here
Display point style on legend in chart.js
add this in your options
legend: {
display: true,
position: 'bottom',
labels: {
boxWidth: 9,
fontColor: '#474747',
fontFamily: '6px Montserrat',
},
},
for example :
this.testChart = new Chart('testPie', {
type: 'doughnut',
data: {
labels: [ 'Success','Failure','Aborted'],
datasets: [
{
data: [],
backgroundColor: [ '#45D78F', '#F58220','#FFD403'],
},
],
},
options: {
maintainAspectRatio: false,
cutoutPercentage: 50, // for thikness of doughnut
title: {
display: false,
text: 'Runs',
fontSize: 14,
fontFamily: 'Roboto',
fontColor: '#474747',
},
legend: {
display: true,
position: 'bottom',
labels: {
boxWidth: 9,
fontColor: '#474747',
fontFamily: '6px Montserrat',
},
},
},
});
I tried every possible way, every form-answer but anything works inmy code. I want yAxes begin at zero and max value is 100 but all my chart begin with other values (see pic). What can I do?
var options = {
responsive: true,
scales: {
yAxes: [{
display: true,
ticks: {
beginAtZero: true,
max: 100,
min: 0
}
}]
},
title: {
display: true,
text: name
},
tooltips: {
mode: 'index',
intersect: false,
},
hover: {
mode: 'nearest',
intersect: true
},
};
key is to pass options in the Chart constructor instead of part of data
new Chart(ctx, {
type: 'bar',
data: {{ chart_data|safe }},
options: {
scales: {
yAxes: [{
display: true,
ticks: {
beginAtZero: true
}
}]
}
}
});
above works for me!
#Nikolas,
Here is the fiddle where the parameters you set works well.
https://jsfiddle.net/shemdani/zkb215up/2/
var options = {
responsive: true,
scales: {
yAxes: [{
display: true,
ticks: {
beginAtZero: true,
max: 100,
min: 0
}
}]
},
title: {
display: true,
text: name
},
tooltips: {
mode: 'index',
intersect: false,
},
hover: {
mode: 'nearest',
intersect: true
},
};
var data = {
labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
label: '# of Votes',
data: [32, 59, 36, 25, 68, 71],
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
}]
}
var ctx = document.getElementById("myChart");
var chartInstance = new Chart(ctx, {
type: 'line',
data: data,
options:options
});
Please check and see what you are doing wrong. I used the basic data from charjs documentation.
Working for version 3.2.0:
var options = {
// plugins, responsive etc...
scales: {
y: {
min: 0
}
},
//tooltips specifications...
}
The y-axis will start at 0:
I tried different solutions and adding barThickness: 25 in options worked for me.