I have 3 charts on my canvas 1 stacked bar chart and 2 line charts.
Line charts have same Y values but located at different heights.
I have 3.6 version Chart js
dataset
is data for my stacked bars
Line and linePrediction are my graphs and have same values
const line = {
label: 'Signed',
data: [
{x: 1, y: 12226000},
{x: 2, y: 12716000},
{x: 3, y: 14176000},
...
],
backgroundColor: 'rgba(55, 128, 189, 1)',
borderColor: 'rgba(55, 128, 189, 1)',
tension: 0.4,
type: 'line',
order: 1,
}
const data = {
labels: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12],
datasets: [ ...dataset, line, linePrediction]
};
const config = {
type: 'bar',
data,
options: {
responsive: true,
plugins: {
tooltip: {
enabled: true,
callbacks: {
title: function(tooltipItems, data) {
return tooltipItems[0].formattedValue || '';
},
label: function(context) {
return ' ' + context.dataset.label || '';
}
}
},
legend: {
display: true,
position: 'bottom',
labels: {
padding: 10
}
}
},
scales: {
x: {
stacked: true
},
y: {
beginAtZero: true,
stacked: true
},
},
}
};
const chart = new Chart(document.getElementById('chart'), config);
Related
I've got a Gantt chart:
And I want to use the series.gantt.custom object to set specific properties for each series on the yAxis.
From these properties I want to construct the yAxis labels.
My code:
Highcharts.ganttChart('container', {
yAxis: {
categories: ['1', '2'],
labels: {
formatter() {
return this.value
/* + this.chart.series[this.pos].custom.size */
},
}
},
series: [{
groupPadding: 1,
custom: {
size: "small",
},
type: 'line',
zoneAxis: 'x',
data: [{
y: 0,
x: Date.UTC(2022, 10, 18),
custom: {
label: 1,
}
}, {
y: 0,
x: Date.UTC(2022, 10, 25, 12),
custom: {
label: 2
}
}]
}, {
type: 'line',
zoneAxis: 'x',
custom: {
size: "large",
},
data: [{
y: 1,
x: Date.UTC(2022, 10, 18),
custom: {
label: 1
}
}, {
y: 1,
x: Date.UTC(2022, 10, 25, 12),
custom: {
label: 2
}
}]
}]
});
this.chart.series[this.pos].custom.size it's the bit that is not working.
The labels should be 1 small and 2 large.
A fiddle
You can reach this property through the series.options:
this.chart.series[this.pos].options.custom.size
Demo:
https://jsfiddle.net/BlackLabel/gLkn9uqf/
Hello I have stuck with add space between stacked bar, I mean I need to add space or margin or padding between bar color
this what I'm done with
and what I want is like this
as you can see there's is space between green, red and yellow bar
are possible to add it?
I've trying to add options.layout.padding but still not working
const borderRadius = 8;
const borderRadiusAllCorners = { topLeft: borderRadius, topRight: borderRadius, bottomLeft: borderRadius, bottomRight: borderRadius };
const labels = ['0%', '25%', '50%', '75%', '100%'];
const data = {
labels: labels,
datasets: [
{
label: 'LCP',
data: [
90,80,70
],
borderColor: 'green',
backgroundColor: 'green',
borderWidth: 0,
borderRadius: borderRadiusAllCorners,
borderSkipped: 'false',
},
{
label: 'FID',
data: [
8,15,15
],
borderColor: 'yellow',
backgroundColor: 'yellow',
borderWidth: 0,
borderRadius: borderRadiusAllCorners,
borderSkipped: 'false',
},
{
label: 'CLS',
data: [
2,5,15
],
borderColor: 'red',
backgroundColor: 'red',
borderWidth: 0,
borderRadius: borderRadiusAllCorners,
borderSkipped: 'false',
},
]
};
const ctx = $('#cwv-chart');
const myChart = new Chart(ctx, {
type: 'bar',
data: data,
options: {
indexAxis: 'y',
elements: {
bar: {
borderRadius: 6,
borderWidth: 2,
}
},
scales: {
x: {
display: false,
stacked: true,
offset: true,
},
y: {
display: false,
stacked: true
}
},
responsive: true,
plugins: {
legend: {
display: false,
},
title: {
display: false,
}
}
},
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
<canvas id="cwv-chart" height="150"></canvas>
The options.layout.padding is just adding space around the chart area and not between data elements.
I'm doing something like that with a simple plugin, changing the base of the bar element, at runtime.
EDIT: the plugin has been updated in order to avoid bugs when chart hovering.
See snippet:
const ctx = document.getElementById("myChart");
const plugin = {
id: 'fillGaps',
beforeDatasetDraw(chart, args) {
if (args.index > 0 && chart.isDatasetVisible(args.index)) {
args.meta.data.forEach(function(item, i) {
const {width} = item.getProps(['width'], true);
item.base = item.x - width + 3;
});
}
}
};
const myChart = new Chart(ctx, {
type: 'bar',
plugins: [plugin],
data: {
labels: ['January', 'Fabruary', 'March', 'April', 'May', 'June', 'July'],
datasets: [{
label: 'user 1 online',
data: [50, 35, 45, 47, 10, 3, 27],
backgroundColor: 'rgba(40, 139, 170, 1)',
borderWidth: 0,
borderSkipped: false,
},
{
label: 'user 2 online',
data: [50, 35, 45, 47, 10, 3, 27],
backgroundColor: 'orange',
borderWidth: 0,
borderSkipped: false,
}]
},
options: {
indexAxis: 'y',
//animation: false,
elements: {
bar: {
borderRadius: {
topLeft: 12,
topRight: 12,
bottomLeft: 12,
bottomRight: 12
},
}
},
scales: {
y: {
stacked: true,
},
x: {
stacked: true,
}
}
}
});
.myChartDiv {
max-width: 600px;
max-height: 400px;
}
<script src="https://cdn.jsdelivr.net/npm/chart.js#3.9.1/dist/chart.min.js"></script>
<html>
<body>
<div class="myChartDiv">
<canvas id="myChart" width="600" height="400"/>
</div>
</body>
</html>
How can I change the size of each different dot in my scatter chart ?
var scatterChart = new Chart(ctx, {
type: 'scatter',
data: {
datasets: [{
label: 'Scatter Dataset',
data: [{
x: -10,
y: 0
}, {
x: 0,
y: 15
}, {
x: 10,
y: 5,
}],
pointRadius: 15,
fill: false,
pointHoverRadius: 20
}]
},
options: {
scales: {
xAxes: [{
type: 'linear',
position: 'bottom',
}]
}
}
});
After this I want to change each dot size in matter of my ajax response data.
I tried to do this without the star ofc:
data: [{
x: -10,
y: 0
}, {
x: 0,
y: 15
}, {
x: 10,
y: 5,
pointRadius: 15,
*
}],
but with no success.
You should use a bubble chart that accepts the bubble radius in pixels (property r) for each data point.
Please take a look at this sample chart.
you can put each point in a separate series.
this will allow you to assign a separate radius.
datasets: [{
label: 'Scatter Dataset',
data: [{
x: -10,
y: 0
}],
pointRadius: 10,
fill: false,
pointHoverRadius: 20
}, {
label: 'hidden',
data: [{
x: 0,
y: 15,
}],
pointRadius: 20,
fill: false,
pointHoverRadius: 20
}, {
label: 'hidden',
data: [{
x: 10,
y: 5,
}],
pointRadius: 30,
fill: false,
pointHoverRadius: 20
}]
and to prevent multiple legend entries from being displayed,
we can filter out all but one series label.
legend: {
labels: {
filter: function(item, chart) {
return (item.text !== 'hidden');
}
}
},
see following working snippet...
$(document).ready(function() {
var scatterChart = new Chart(document.getElementById('chart').getContext('2d'), {
type: 'scatter',
data: {
datasets: [{
label: 'Scatter Dataset',
data: [{
x: -10,
y: 0
}],
pointRadius: 10,
fill: false,
pointHoverRadius: 20
}, {
label: 'hidden',
data: [{
x: 0,
y: 15,
}],
pointRadius: 20,
fill: false,
pointHoverRadius: 20
}, {
label: 'hidden',
data: [{
x: 10,
y: 5,
}],
pointRadius: 30,
fill: false,
pointHoverRadius: 20
}]
},
options: {
legend: {
labels: {
filter: function(item, chart) {
return (item.text !== 'hidden');
}
}
},
scales: {
xAxes: [{
type: 'linear',
position: 'bottom',
}]
}
}
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.8.0/Chart.bundle.min.js"></script>
<canvas id="chart"></canvas>
I figured out you can specify an array of values for pointRadius & pointStyle properties :
datasets: [
{
label: "Plan",
data: [10, 15, 5],
pointRadius: [10, 5, 15],
pointStyle: ["rect", "rect", "circle"],
},
],
This way you can specify a size of each dot individually
I've created a line chart with two datasets, each one its own Y scale&axis using Chart.js.my datasets and options'code is like below.
datasets: [{ fill:false,
label: 'Heat',
yAxisID: "y-axis-1",
data: warm,
},
{ fill:false,
yAxisID: "y-axis-0",
label:'Mass',
data:volume,
]
options:{
scales: {
yAxes: [{ position: "left",
"id": "y-axis-0",
display: true,
ticks: { steps: 10,
stepValue: 5,
callback:(label,index,labels)=>{ return label + "%"; } }
},
{ position: "right",
"id": "y-axis-1",
display: true,
ticks: { steps: 10,
stepValue: 5,
callback:(label,index,labels)=>{ return label + " c"; } } }] }
}
it is looking like the folowing image at the moment.
when I toggle Mass label,the YAxes on the left is still appearing.I want to hide it if I toggle the labels.can you please guide me to solve this problem?
You could achieve this using the following chartjs plugin ...
Chart.plugins.register({
beforeDraw: function(c) {
var canvas_id = c.chart.canvas.id;
if (canvas_id === 'myChart') {
if (c.data.datasets[0]._meta[0].hidden) {
c.options.scales.yAxes[1].display = false;
} else c.options.scales.yAxes[1].display = true;
if (c.data.datasets[1]._meta[0].hidden) {
c.options.scales.yAxes[0].display = false;
} else c.options.scales.yAxes[0].display = true;
}
}
});
ᴅᴇᴍᴏ
Chart.plugins.register({
beforeDraw: function(c) {
var canvas_id = c.chart.canvas.id;
if (canvas_id === 'myChart') {
if (c.data.datasets[0]._meta[0].hidden) {
c.options.scales.yAxes[1].display = false;
} else c.options.scales.yAxes[1].display = true;
if (c.data.datasets[1]._meta[0].hidden) {
c.options.scales.yAxes[0].display = false;
} else c.options.scales.yAxes[0].display = true;
}
}
});
var canvas = document.getElementById('myChart');
var warm = [0, 0, 0, 0, 25, 25, 25, 25, 25, 25];
var volume = [98, 12, 0, 7, 7, 7, 7, 78, 62, 62];
var data = {
labels: ["23.05.2017 15:34:48", "23.05.2017 15:35:02", "23.05.2017 15:35:14", "23.05.2017 15:35:28", "23.05.2017 15:59:35", "23.05.2017 16:00:11", "23.05.2017 16:07:22", "23.05.2017 16:38:04", "23.05.2017 16:38:43", "23.05.2017 16:57:48"],
datasets: [{
fill: false,
label: 'Heat',
pointHoverRadius: 5,
pointHitRadius: 5,
lineTension: 0,
yAxisID: "y-axis-1",
data: warm,
backgroundColor: "rgba(255,153,0,0.4)"
}, {
fill: false,
pointHoverRadius: 5,
pointHitRadius: 5,
lineTension: 0,
yAxisID: "y-axis-0",
label: 'Mass',
data: volume,
backgroundColor: "rgba(153,255,51,0.4)"
}]
};
var option = {
maintainAspectRatio: false,
responsive: true,
bezierCurveTension: 0,
scales: {
xAxes: [{
display: true,
ticks: {
maxTicksLimit: 3,
fontSize: 10
}
}],
yAxes: [{
position: "left",
"id": "y-axis-0",
display: true,
ticks: {
steps: 10,
stepValue: 5,
//max: 100,
callback: (label, index, labels) => {
return label + "%";
}
}
}, {
position: "right",
"id": "y-axis-1",
display: true,
ticks: {
steps: 10,
stepValue: 5,
//max: 100,
callback: (label, index, labels) => {
return label + " c";
}
}
}]
}
};
var myLineChart = Chart.Line(canvas, {
data: data,
options: option
});
function adddata() {
myLineChart.data.datasets[0].data[7] = 50;
myLineChart.data.labels[7] = "test add";
myLineChart.update();
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.5.0/Chart.min.js"></script>
<canvas id="myChart" width="400" height="250"></canvas>
ChartJS v2.5.0
I drawn a chart using chart js like below
In this above chart i want to make a line thicker ( Pink Marked ) like other lines and also i want to remove x axis line ( Green Marked ). How can i do this please Help me.
Please see the fiddle Here Live Chart
var ganttchart = document.getElementById('bar-chart');
new Chart(ganttchart, {
type: 'line',
data: {
datasets: [
{
label: 'Scatter Dataset',
backgroundColor: "rgba(246,156,85,1)",
borderColor: "rgba(246,156,85,1)",
fill: false,
borderWidth : 15,
pointRadius : 0,
data: [
{
x: 0,
y: 9
}, {
x: 3,
y: 9
}
]
},
{
backgroundColor: "rgba(208,255,154,1)",
borderColor: "rgba(208,255,154,1)",
fill: false,
borderWidth : 15,
pointRadius : 0,
data: [
{
x: 3,
y: 7
}, {
x: 5,
y: 7
}
]
},
{
label: 'Scatter Dataset',
backgroundColor: "rgba(246,156,85,1)",
borderColor: "rgba(246,156,85,1)",
fill: false,
borderWidth : 15,
pointRadius : 0,
data: [
{
x: 5,
y: 5
}, {
x: 10,
y: 5
}
]
},
{
backgroundColor: "rgba(208,255,154,1)",
borderColor: "rgba(208,255,154,1)",
fill: false,
borderWidth : 15,
pointRadius : 0,
data: [
{
x: 10,
y: 3
}, {
x: 13,
y: 3
}
]
}
]
},
options: {
legend : {
display : false
},
scales: {
xAxes: [{
type: 'linear',
position: 'top',
gridLines: {
lineWidth:20
},
ticks : {
beginAtzero :true,
stepSize : 1
}
}],
yAxes : [{
gridLines: {
display:false,
},
ticks : {
beginAtZero :true,
max : 10,
display:false
}
}]
},
animation: {
duration: 0
},
hover: {animationDuration: 0}
}
});
You can find axes config options currently here: Axes - Chart.js Documentation
Axes config options has a global field display with the following description:
If set to false the axis is hidden from view. Overrides gridLines.display, scaleLabel.display, and ticks.display.
Here is how I have implemented it:
public chartOptions = {
scales: {
xAxes: [{
display: false,
}],
yAxes: [{
display: false,
}]
}
};
Just change border to false.
const config =
{
type: 'line',
data,
options: {
scales:{
y: {
beginAtZero: false,
border:{
display:false
}
},
x: {
beginAtZero: false,
border:{
display:false
}
}
}
}
}
}