How to hide label in markLine of series-line in Echarts? Or how to change label style?
I tried label: false, not working.
series: [
markLine: {
silent: true,
symbol: false,
label: false,
data: [{
yAxis: 100
}, {
yAxis: 400
}],
lineStyle: {
normal: {
type: "solid",
color: "red"
}
}
}
]
It should be:
series: [
markLine: {
label: {
normal: {
show: false
}
}
}
]
normal is the style when not mouse over or touch down. Otherwise, it would be emphasis.
Please refer to doc.
Related
I'm trying to make a chart in Apache eCharts that is a single ring with a large number in the middle. I want to use it to display a website score.
This is the closest image example I can find online of what I am trying to achieve:
And I have found these polar bar charts in the Apache eCharts docs which look great:
But I don't know how to only have one large ring with a number displayed in the middle.
Do you know how I can achieve that?
Here is my current code, taken from the docs:
option = {
angleAxis: {
show: false,
max: 10
},
radiusAxis: {
show: false,
type: 'category',
data: ['AAA', 'BBB', 'CCC', 'DDD']
},
polar: {},
series: [
{
type: 'bar',
data: [3, 4, 5, 6],
colorBy: 'data',
roundCap: true,
label: {
show: true,
position: 'start',
formatter: '{b}'
},
coordinateSystem: 'polar'
}
]
};
You probably want a variant of the Gauge chart.
here is a series that would create something very close to your first image example.
series: [
{
type: 'gauge',
startAngle: 90,
endAngle: 270,
min: 0,
max: 100,
progress: {
show: true,
width: 18
},
pointer: {
show: false
},
axisLine: {
show: false
},
axisTick: {
show: false
},
splitLine: {
show: false
},
axisLabel: {
show: false
},
title: {
show: false
},
itemStyle: {
color: 'blue'
},
detail: {
formatter: '{value}',
color: 'auto',
offsetCenter: [0, '-0%'],
valueAnimation: true,
},
}
]
Here is a link to an example that is similar to your second image
I'm trying to get chartjs to show a specific label next to each point, for example in this script it should display "TRALALA" in the label as well as mouse hover, but instead it shows the coordinates.
How to have the specific label instead ?
https://jsfiddle.net/z0eLygwx/
thanks
var valuedata = [{
x: 3,
y: 5
}];
var valuelabel = ['TRALALA'];
var chartData = {
labels: valuelabel,
datasets: [{
label: 'Distance',
borderColor: '#2196f3', // Add custom color border
backgroundColor: '#2196f3', // Add custom color background (Points and Fill)
data: valuedata,
pointRadius: 10,
pointHoverRadius: 12
}]
};
var myBarChart = new Chart(document.getElementById("myChart1"), {
type: 'scatter',
data: {
labels: valuelabel,
datasets: [{
label: 'Distance',
borderColor: '#2196f3', // Add custom color border
backgroundColor: '#2196f3', // Add custom color background (Points and Fill)
data: valuedata,
pointRadius: 10,
pointHoverRadius: 12
}]
},
options: {
legend: {
display: true
},
title: {
display: true,
text: 'Distance of JDPT kanji compared to the equivalent JLPT level'
},
scales: {
yAxes: [{
type: 'logarithmic',
display: true,
scaleLabel: {
display: true,
labelString: 'Count',
fontSize: 16
}
}],
xAxes: [{
type: 'linear',
position: 'bottom',
display: true,
scaleLabel: {
display: true,
labelString: 'Distance',
fontSize: 16
},
gridLines: {
display: true
}
}]
},
plugins: {
datalabels: {
color: '#d6621e',
align: 'right',
offset: 16,
font: {
weight: 'bold'
}
}
}
}
});
myBarChart.update();
Ok I got it with
formatter: function(value, context) {
context.chart.data.labels[context.dataIndex];
}
For example
var myBarChart = new Chart(document.getElementById("bar-chart"), {
type: 'line',
data: {
labels: ['a', 'b'],
datasets: [{
data: [10, 20]
}]
},
options: {
plugins: {
datalabels: {
formatter: function(value, context) {
return context.chart.data.labels[context.dataIndex];
}
}
}
}
});
Because some date are overlap, I want to add labelline in each Bubble, How can I do that? Thks
You can add the label option to your series object:
series: [{
type: 'scatter',
symbolSize: function (data) {
...
},
emphasis: {
...
},
label: {
show: true,
position: 'top'
},
itemStyle: {
...
},
...
}]
all the customizations available for this label are here (position, format, etc):
https://echarts.apache.org/en/option.html#series-scatter.label
In the example below the y-axis crosses at 1, rather than 0. Is there a way to achieve this in echarts?
It seems to me, literally, you can't do this with basic bar chart because it will break the coordinate system and result will be anything but not a bar chart.
If you need only visual like on attached picture then you can hide xAxis and draw its surrogate with markLine but you will have the troubles with bar positioning (that will fix with stack and transparent bars, see below).
If you need real chart with responsive, zoomable and other opts then in the Echarts you can use custom series for build own chart type (see example).
Example how to make picture like attached:
var myChart = echarts.init(document.getElementById('main'));
var option = {
tooltip: {},
xAxis: {
data: ['Category-1', 'Category-2', 'Category-3', 'Category-4'],
show: true,
axisLine: {
show: true,
lineStyle: {
opacity: 0
}
},
axisTick: {
show: false,
}
},
yAxis: {
max: 4,
min: -1
},
series: [{
name: 'Series-1',
type: 'bar',
stack: 'group',
data: [1, 1, -3],
color: 'rgba(0,0,0, 0)',
}, {
name: 'Series-2',
type: 'bar',
stack: 'group',
data: [{
value: 1,
itemStyle: {
color: 'red'
}
}, {
value: 2,
itemStyle: {
color: 'green'
}
}, {
value: 1,
itemStyle: {
color: 'orange'
}
}],
markLine: {
symbol: "none",
data: [{
silent: false,
yAxis: 1,
lineStyle: {
color: "#000",
width: 1,
type: "solid"
}
}, ],
label: {
show: false,
}
},
}]
};
myChart.setOption(option);
<script src="https://cdn.jsdelivr.net/npm/echarts#4.8.0/dist/echarts.min.js"></script>
<div id="main" style="width: 600px;height:400px;"></div>
P.S. If this not a secret, why you need it?
I need to always show tooltips
I tried
How to show tooltips always on Chart.js 2
I want to show the value of label inside the pie graph. (vue-chartjs / pieceLabel)
etc.
import { Line } from 'vue-chartjs'
export default {
extends: Line,
props: {
linechartData: {
type: Array | Object,
required: true
},
linechartLabels: {
type: Array,
required: true
}
},
data () {
return {
options: {
title: {
display: true,
text: 'MONTHLY FEEDBACKS RECEIVED (LAST 12 MONTHS)'
},
scales: {
yAxes: [{
ticks: {
beginAtZero: true
},
gridLines: {
display: true
}
}],
xAxes: [{
gridLines: {
display: true
},
display: false
}]
},
legend: {
display: false
},
responsive: true,
maintainAspectRatio: false
}
}
},
mounted () {
this.renderChart({
labels: this.linechartLabels,
datasets: [{
borderColor: '#027be3',
pointBackgroundColor: 'rgb(38, 166, 154, 0.5)',
borderWidth: 1,
pointBorderColor: '#249EBF',
backgroundColor: 'rgb(38, 166, 154, 0.5)',
data: this.linechartData
}]
}, this.options)
}
}
I expect tooltip to always show by default