type: 'scatter'
Now first one is on the top. Is it possible to show different charts on the top?
picture
In your dataset array you can put a type to put a different type in there. The order of the datasets in the array decide the draw order of them.
var options = {
type: 'line',
data: {
labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
label: '# of Votes',
data: [12, 13, 3, 5, 2, 3],
borderWidth: 1
},
{
type: 'bar',
label: '# of Points',
data: [7, 11, 5, 8, 3, 7],
borderWidth: 1,
backgroundColor: 'red'
}
]
},
options: {
scales: {
yAxes: [{
ticks: {
reverse: false
}
}]
}
}
}
var ctx = document.getElementById('chartJSContainer').getContext('2d');
new Chart(ctx, options);
<body>
<canvas id="chartJSContainer" width="600" height="400"></canvas>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.4/Chart.js" integrity="sha512-hZf9Qhp3rlDJBvAKvmiG+goaaKRZA6LKUO35oK6EsM0/kjPK32Yw7URqrq3Q+Nvbbt8Usss+IekL7CRn83dYmw==" crossorigin="anonymous"></script>
</body>
Related
I have chartjs v2.9.3 in my Django app and it works great. Now I need to add a box to one of my charts using chartjs-plugin-annotation, and I've followed all the steps, but I can't get it to work.
I've used chartjs-plugin-annotation v0.5.7 which is for v2.9.3. I get no errors in the console log.
First, scripts with chart.js and plugins:
<script src="https://cdn.jsdelivr.net/npm/chart.js#2.9.3/dist/Chart.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/chartjs-plugin-datalabels#0.7.0"></script>
<script src="https://cdn.jsdelivr.net/npm/chartjs-plugin-annotation#0.5.7/chartjs-plugin-annotation.min.js"></script>
My code for chart (chart works, I just can't get box to appear):
<canvas id="myChart" height="250"></canvas>
<script>
function setChart12(){
$('#myChart').remove();
$('#container_glavni').append('<canvas id="myChart" height="200"></canvas>');
var ctx = document.getElementById('myChart').getContext('2d');
var myChart = new Chart(ctx, {
type: 'bar',
data: {
labels: date,
datasets: [{
label: 'Number of reports',
data: data_nc
}, {
type: 'line',
label: 'Median',
data: [50],
fill: false,
borderColor: 'rgb(54, 162, 235)',
}],
},
options: {
layout: {
padding: {
top: 30
}
},
responsive: true,
legend: {
display: false
},
plugins: {
datalabels: {
anchor: 'end',
align: 'end',
offset: 5,
},
autocolors: false,
annotation: {
annotations: {
box1: {
type: 'box',
xMin: 0,
xMax: 1,
yMin: 0,
yMax: 30,
backgroundColor: 'rgba(255, 99, 132, 0.25)'}
}
}
},
scales: {
yAxes: [{
ticks: {
beginAtZero: true
}
}]
}
}
});}
</script>
I've tried:
Different values for min and max
Different colors
Different code formating
This is because you putted the options in the place where they belong in V1 of the annotation plugin and the syntax too. For V0.5.7 the annotation options have to be placed in the root of the options and also all the annotations are an array instead of seperate objects:
var options = {
type: 'line',
data: {
labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
label: '# of Votes',
data: [12, 19, 3, 5, 2, 3],
borderWidth: 1
},
{
label: '# of Points',
data: [7, 11, 5, 8, 3, 7],
borderWidth: 1
}
]
},
options: {
annotation: {
annotations: [{
id: "hline",
type: "line",
mode: "horizontal",
scaleID: "y-axis-0",
value: 10,
borderColor: "red",
}]
},
}
}
var ctx = document.getElementById('chartJSContainer').getContext('2d');
new Chart(ctx, options);
<body>
<canvas id="chartJSContainer" width="600" height="400"></canvas>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.4/Chart.js"></script>
<script src="https://cdn.jsdelivr.net/npm/chartjs-plugin-annotation#0.5.7/chartjs-plugin-annotation.min.js"></script>
</body>
Is there anyway to remove this overflowing section of the gridlines?
This is exactly what I'm looking for:
I've seen a few post from years ago with this question and none of them have really yielded any results. Those were so long ago that I pray that a fix has happened since then.
Cheers!
You can set tickLength to 0 in the grid options. To make the ticks still appear a bit away from the scale you can use the padding option:
const options = {
type: 'line',
data: {
labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
label: '# of Votes',
data: [12, 19, 3, 5, 2, 3],
borderColor: 'pink'
},
{
label: '# of Points',
data: [7, 11, 5, 8, 3, 7],
borderColor: 'orange'
}
]
},
options: {
scales: {
y: {
ticks: {
padding: 4,
crossAlign: 'far'
},
grid: {
tickLength: 0
}
},
x: {
grid: {
tickLength: 0
}
}
}
}
}
const ctx = document.getElementById('chartJSContainer').getContext('2d');
new Chart(ctx, options);
<body>
<canvas id="chartJSContainer" width="600" height="400"></canvas>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/3.7.1/chart.js"></script>
</body>
I have a chart.js pie chart. When I update the dataset, I want the pie segments to adjust size smoothly to the new values (i.e. grow/shrink in size).
The pie chart does the rotate transition every time. I can turn off the rotate transition with .update('none') after setting the new data, but then the pie chart instantly changes with no transition.
Is there a way to do this?
My pie chart setup code is:
chartRegion_Emissions_ANZIC_BreakdownChart = new Chart(ctx, {
type: 'pie',
options: {
responsive: true,
maintainAspectRatio: false,
plugins: {
tooltip: {
mode: 'nearest',
callbacks: {
label: function (tooltipItem, data) {
return tooltipItem.label + ': ' + addCommas(tooltipItem.raw) + 'kt';
}
}
}
}
},
data: {
labels: [],
datasets: []
}
});
and the update code (after AJAX request) is ...
chartRegion_Emissions_ANZIC_BreakdownChart.data.labels = data.labels;
chartRegion_Emissions_ANZIC_BreakdownChart.data.datasets[0] = data.data[0];
chartRegion_Emissions_ANZIC_BreakdownChart.update();//'none');
I'm using chart.js version 3.3.2... thanks for any help
Cheers
You override the entire dataset, if you instead of doing that only change the data of that dataset it will shrink/expand the segments of the data.
Example:
const options = {
type: 'pie',
data: {
labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
label: '# of Votes',
data: [12, 19, 3, 5, 2, 3],
backgroundColor: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
},
{
label: '# of Points',
data: [7, 11, 5, 8, 3, 7],
backgroundColor: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
}
]
},
options: {}
}
const ctx = document.getElementById('chartJSContainer').getContext('2d');
const chart = new Chart(ctx, options);
document.getElementById('update').addEventListener('click', () => {
chart.data.datasets[0].data = [10, 5, 12, 6, 8, 2];
chart.update();
})
<body>
<canvas id="chartJSContainer" width="600" height="400"></canvas>
<button id="update">
update data
</button>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/3.4.1/chart.js"></script>
</body>
I want to remove labels from the top of pie chart. but not from mouse hover. if I comment on the labels options it shows undefined when I hover on the chart, how can I achieve that
var ctx = $("#doughnutChart").get(0).getContext('2d');
new Chart(ctx, {
type: 'pie',
data: { // I want to hide this labels.
labels: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
datasets: [{
label: 'User',
backgroundColor: colors,
data: usersData
}]
},
options: {
responsive: true,
}
});
You can set the legend to display: false in the options like so:
V2:
options: {
legend: {
display: false
}
}
V3:
options: {
plugins: {
legend: {
display: false
}
}
}
V2 example:
var options = {
type: 'pie',
data: {
labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
label: '# of Votes',
data: [12, 19, 3, 5, 2, 3],
borderWidth: 1
}]
},
options: {
legend: {
display: false
}
}
}
var ctx = document.getElementById('chartJSContainer').getContext('2d');
new Chart(ctx, options);
<body>
<canvas id="chartJSContainer" width="600" height="400"></canvas>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.4/Chart.js"></script>
</body>
V3 example:
var options = {
type: 'pie',
data: {
labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
label: '# of Votes',
data: [12, 19, 3, 5, 2, 3],
borderWidth: 1
}]
},
options: {
plugins: {
legend: {
display: false
}
}
}
}
var ctx = document.getElementById('chartJSContainer').getContext('2d');
new Chart(ctx, options);
<body>
<canvas id="chartJSContainer" width="600" height="400"></canvas>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/3.2.0/chart.js"></script>
</body>
In Chartjs, is there any way to shift the line plot to the right 1 tick? Right now the line starts from the y-axis and as the result at the origin, there are labels from both x and y axis that does not look that nice. I attach the screenshot
Ideally I would like the 09-2016 to move to the right a litte. Really appreciate any help.
You can add an empty label and to the start of the labels array and a null value to the start of your dataArray to shift it a bit
Example:
var options = {
type: 'line',
data: {
labels: ["", "Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
label: '# of Votes',
data: [null, 12, 19, 3, 5, 2, 3],
borderWidth: 1,
fill: false,
borderColor: 'red',
backgroundColor: 'red'
}]
},
options: {
scales: {
yAxes: [{
ticks: {
reverse: false
}
}]
}
}
}
var ctx = document.getElementById('chartJSContainer').getContext('2d');
new Chart(ctx, options);
<body>
<canvas id="chartJSContainer" width="600" height="400"></canvas>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.4/Chart.js" integrity="sha512-hZf9Qhp3rlDJBvAKvmiG+goaaKRZA6LKUO35oK6EsM0/kjPK32Yw7URqrq3Q+Nvbbt8Usss+IekL7CRn83dYmw==" crossorigin="anonymous"></script>
</body>