I'm working with a chart-js bar chart that has to be placed inside a small div so I was searching for a way to make the labels in the x-axis horizontal instead of diagonal. The point is to gain as much height as possible for the actual bars because right now the labels consume almost 40% of the available space.
This is my code:
let options = {
responsive: true,
maintainAspectRatio: false,
scales: {
yAxes: [{
ticks: {
beginAtZero: true
}
}],
xAxes: [{
display: false
}]
}
};
let ctx = document.getElementById('barChartCtx');
let barChart = new Chart(ctx, {
type: 'bar',
data: data,
options: options
});
I have temporarily disabled the xAxis labels. It works but ideally I would like them to be horizontal. Thoughts?
You can use the scale ticks maxRotation and minRotation properties to control this.
Here is an example.
let options = {
responsive: true,
maintainAspectRatio: false,
scales: {
yAxes: [{
ticks: {
beginAtZero: true
}
}],
xAxes: [{
ticks: {
minRotation: 0,
maxRotation: 0
}
}]
}
};
Keep in mind that the reason they are diagonal is because chart.js calculated that they would not fit at their default horizontal orientation. If you find that they overflow on each other when horizontal then you can still use the above properties to tweak the rotation so they are only slightly diagonal.
Related
I am using chartjs 2.7.3 and I have a problem when setting the size of the div that encloses canvas the image is blurry and letters are not visible like the screenshot below:
The code is:
<div class="stackedChartClass">
<canvas #stackedChart></canvas>
</div>
let stackedChartOptions: any = {
responsive: false,
legend: {
position: 'right' // place legend on the right side of chart
},
scales: {
xAxes: [{
stacked: true // this should be set to make the bars stacked
}],
yAxes: [{
stacked: true // this also..
}]
}
}
this.stackedChart = new Chart(pieCtx,
{
type: 'bar',
data: this.stackedChartData,
options: stackedChartOptions,
responsive: true
}
);
and the css
.stackedChartClass>canvas {
width: 100% !important;
height: 50vh !important;
}
How can this be fixed?
I added this to options and the blur effect was gone.
responsive: true,
maintainAspectRatio: false,
I have a line chart, and at first, all the labels on x-axis are fully horizontal. Something like this:
Now if add more data, the labels start to rotate:
Until comes a point where it seems to have reached the maximum degree to which it can rotate:
By the looks of it, I think the maximum degree is 45. So now, if I add a little more data, instead of rotating the labels more, it removes every one in two labels, and becomes like this:
How can I increase this degree to 90, so that the labels rotate as much as becoming fully vertical?
Here's the code I used for the chart:
new Chart(chart, {
type: 'line',
data: chart_data,
options: {
scales: {
yAxes: [{
ticks: {
beginAtZero: false
}
}]
},
legend: {
position: 'top',
labels: {
boxWidth: 5,
usePointStyle: true
}
},
events: ['click', 'mousemove'],
onClick: clicked,
pan: {
enabled: true,
mode: 'x',
onPanComplete: function(event) {
console.log(event)
}
},
zoom: {
enabled: true,
mode: 'x'
}
}
});
You can configure this using the maxRotation property of the common tick configuration object.
Your code needs to be modified like so:
options: {
scales: {
xAxes: [{
ticks: {
maxRotation: 90
}
}],
yAxes: [{
...
The keyword of the issue is not rotation i think, it is Tick on xAxes.
I think this link can help you :
https://www.chartjs.org/docs/latest/axes/styling.html#tick-configuration
also
Chart.js: evenly distribute ticks when using maxTicksLimit
xAxes: [{
ticks: {
autoSkip: false, // Skip or not?
maxTicksLimit: 30 // How much?
}
}]
and rotation just can help as #timclutton said here : https://stackoverflow.com/a/58275468/7514010
current situation
chart
what i want : chart
I build a mixed chart with lines and bars. I have problem with lines.
Lines not starting at zero.
Here is my codes;
https://jsfiddle.net/ameydan/vb4fsyqp/31/
` options: {
legend: {
display: false,
position: 'top',
},
elements: {
point: {
radius: 0
}
},
scales: {
yAxes: [{
stacked: true,
ticks: {
beginAtZero: true
}
}
],
xAxes: [{
stacked: true,
ticks: {
beginAtZero: true
}
}
]
}
}`
thanks in advance.
beginAtZero : true , not solved problem.
That is cause you setted stacked to true.
scales: {
yAxes: [{
stacked: **false**,
ticks: {
beginAtZero: true
}
}
],
xAxes: [{
stacked: true,
ticks: {
beginAtZero: true
}
}
]
}
EDIT:
Second thought coming from => https://www.chartjs.org/docs/latest/charts/mixed.html
At this point we have a chart rendering how we'd like. It's important to note that the default options for a line chart are not merged in this case. Only the options for the default type are merged in. In this case, that means that the default options for a bar chart are merged because that is the type specified by the type field.
I found a solution!
Just add this :
myChart.options.scales.xAxes[0].offset = false;
myChart.update();
The only counterpart is that if there's data # index 0 of a bar dataset, it will be only half drawn and the last one as well as shown here : https://jsfiddle.net/0qsh8znu/1/
I had the same issue. When I followed #rOulito 's solution, I found that the lack of offset for my line graph made it no longer line up with the data points of my bar graph, so that didn't work, sadly.
My solution was to follow the docs for a chartjs plugin for annotations
This is how I drew a line from the first data point of my line graph to the bottom left of the graph:
let options = {
plugins: {
annotation: {
annotations: {
line1: {
type: 'line',
yMax: 50000,
xMax: 0,
borderColor: 'black',
borderWidth: 3,
},
},
},
},
};
I created a horizontal grouped bar chart in Chart.js but am getting stuck on a weird problem.
The problem is that while I disabled all grid lines and borders the chart is still showing a top horizontal line which I would like to get rid off.
It is visible in this screenshot: http://imgur.com/41YGxA8.
I also made a JSFiddle: https://jsfiddle.net/bsocw1v9/
function create_horizontal_bar_chart(){
/**
* Draw the chart on the correct canvas. Add the correct data sets
* and set the correct draw type.
*/
let ctx = document.getElementById('monthly_subscription_revenue_chart').getContext("2d");
let data = {
labels: ['Diensten'],
datasets: [
{
type: 'horizontalBar',
backgroundColor: "rgb(0,33,86)",
data: [2250],
stack: 1
},
{
type: 'horizontalBar',
backgroundColor: "rgb(219,219,219)",
data: [3000],
stack: 2
},
{
type: 'horizontalBar',
backgroundColor: "rgb(240,95,0)",
data: [750],
stack: 3
},
]
};
new Chart(ctx, {
type: 'horizontalBar',
data: data,
showScale: false,
options: {
legend: {
display: false
},
tooltips: {
enabled: false
},
hover: {
mode: null
},
scales: {
xAxes: [{
stacked: true,
display: false,
gridLines: {
drawBorder: false,
},
}],
yAxes: [{
stacked: true,
barPercentage: 0.9,
gridLines: {
drawBorder: false,
},
}]
}
}
});
}
I hope someone could help me with this problem as I simply can't figure out whats causing this.
You have only disabled borders on the edge of the chart (by setting drawBorder to false), not grid lines. The line that bugs you is a grid line. To disable grid lines for an axis use:
gridLines: {
display: false
}
Look at the docs under "Grid Line Configuration".
I managed to remove all horizontale lines/rules in my chart using this:
scales: {
xAxes: [{
gridLines: {
display: false
}
}]
}
But I also want to get rid of the rule/bar that represents the Y-axis as well. But I want to keep the labels:
Unfortunately I can't find any option for that. I can only remove the whole axis including labels.
I'm using Chart.js 2.3.
I found a way to remove this line. It's actually called the border of the axis and there's an option for it, see "Grid Line Configuration":
scales: {
yAxes: [{
gridLines: {
drawBorder: false,
}
}]
}
This should work
options: {
scales: {
yAxes: [{
gridLines: {
display: false,
}
}]
},
}
This worked for me in version 2.8.0 -
scales: {
yAxes: [{
gridLines: {
tickMarkLength: false,
}
}]
}
In v3 you can do:
options: {
scales: {
y: {
grid: {
drawBorder: false,
}
}
}
}
https://www.chartjs.org/docs/master/axes/styling#grid-line-configuration
The left line is still coming from the x axis grid lines. Changing the 'zeroLineColor' of the x axis to 'transparent' hid it.
xAxes:[{
gridLines:{
zeroLineColor:'transparent'
}}]
Source: https://github.com/chartjs/Chart.js/issues/3950
gridLines: {zeroLineColor: 'transparent'}
this workerd for me
yAxes: [ { gridLines: { display: false, }, }, ],
You can use the scaleLineColor: 'transparent' it will remove the y any x axis