I'm trying to use rotated labels in my graph. However, the labels are getting cropped. How can I make more space in the bottom so that the labels can fit?
options = {
xAxis: {
type: "category",
data: axis,
axisLabel: {
show: true,
interval: 0,
rotate: 45,
},
axisTick: {
show: true,
interval: 0
}
},
yAxis: {
type: "value",
data: axis,
min: 1,
minInterval: 1,
maxInterval: 1,
max: 15,
axisTick: {
interval: 1
}
},
series: [
{
type: "bar",
stack: "minmax",
itemStyle: {
normal: {
color: "rgba(0,0,0,0)"
}
},
data: maxs
},
{
type: "bar",
stack: "minmax",
data: mins,
itemStyle: { color: "#63869e" }
},
{
symbolSize: 20,
data: scatter,
type: "scatter",
itemStyle: { color: "black" },
},
]
};
To contain the label you can use:
options = {
grid: {
containLabel: true,
}
}
Space can be added with grid option bottom:
options = {
grid: {
bottom: 100,
}
}
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 make an horizontal histogram with y labels on top of each bar with the really nice libray echarts. Here is an example:
Here is where I am with this jsfiddle https://jsfiddle.net/795f84o0/6/ :
Echarts documentation is really good but I did not found a way to put these labels (sankey, funnel, gauge....) on top on each bar :/
Do you have any idea how I can do it? Thank you for your help!
var chartDom = document.getElementById('main');
var myChart = echarts.init(chartDom);
var option;
var builderJson = {
"all": 10887,
"charts": {
"map": 3237,
"lines": 2164,
"bar": 7561,
"line": 7778,
"pie": 7355,
"scatter": 2405,
"candlestick": 1842,
"radar": 2090,
"heatmap": 1762,
"treemap": 1593,
"graph": 2060,
"boxplot": 1537,
"parallel": 1908,
"gauge": 2107,
"funnel": 1692,
"sankey": 1568
},
"components": {
"geo": 2788,
"title": 9575,
"legend": 9400,
"tooltip": 9466,
"grid": 9266,
"markPoint": 3419,
"markLine": 2984,
"timeline": 2739,
"dataZoom": 2744,
"visualMap": 2466,
"toolbox": 3034,
"polar": 1945
},
"ie": 9743
};
option = {
xAxis: [{
type: 'value',
max: builderJson.all,
}],
yAxis: [{
data: Object.keys(builderJson.charts),
axisLabel: {
show: false,
},
},
{
data: Object.keys(builderJson.charts),
axisLabel: {
show: true,
},
},
],
series: [{
type: 'bar',
data: Object.keys(builderJson.charts).map(function (key) {
return builderJson.charts[key];
})
}]
};
option && myChart.setOption(option);
All right, I got it after two hours...
Just posting a screenshot to show the result:
The fiddle and the code :
var chartDom = document.getElementById('main');
var myChart = echarts.init(chartDom);
var option;
var builderJson = {
"all": 100,
"charts": {
"pie": 1,
"scatter": 1,
"candlestick": 1,
"radar": 2,
"heatmap": 3,
"treemap": 6,
"graph": 7,
"boxplot": 7,
"parallel": 8,
"gauge": 9,
"funnel": 15,
"sankey": 30
},
};
option = {
xAxis: [{
type: 'value',
max: builderJson.all,
axisLabel: {
show: false,
},
splitLine: {
show: false
}
},
],
yAxis: [{
data: Object.keys(builderJson.charts),
axisLabel: {
show: false,
},
splitLine: {
show: false
},
axisLine: {
show: false
},
axisTick: {
show: false,
}
},
],
series: [{
type: 'bar',
stack: 'chart',
barCategoryGap: 30,
barWidth: 20,
label: {
position: [0, -14],
formatter: '{b}',
show: true
},
itemStyle: {
borderRadius: [0, 2, 2, 0],
},
data: Object.keys(builderJson.charts).map(function (key) {
return builderJson.charts[key];
})
},
{
type: 'bar',
stack: 'chart',
barCategoryGap: 30,
barWidth: 20,
itemStyle: {
color: 'whitesmoke'
},
label: {
position: 'insideRight',
formatter: function(params) { return 100 - params.value + '%'},
show: true
},
data: Object.keys(builderJson.charts).map(function (key) {
return builderJson.all - builderJson.charts[key];
})
}
]
};
option && myChart.setOption(option);
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?
Can someone explain to me how to toggle from light to dark theme without reloading the page??
I have this code that checks if the theme is light or dark and I want to change the theme dynamically base on the theme.
my code so far
initECharts(days: any, hours: any, data: any) {
if (this._chart) {
this._chart.clear();
this._chart = null;
}
// console.log('days: ', this.days);
// console.log('hours: ', this.hours);
// console.log('values: ', this.values);
data = this.reconstructData(days, hours, data);
// const x: any = document.getElementById('main');
const theme = (this._themeService.theme === 'dark') ? 'dark' : 'light';
console.log('theme', theme);
const domEl: any = this.main.nativeElement;
this._chart = echarts.init(domEl, theme);
// specify chart configuration item and data
const option: any = {
tooltip: {
position: 'top'
},
animation: false,
grid: {
height: '50%',
y: '10%'
},
xAxis: {
type: 'category',
data: hours,
splitArea: {
show: true
},
nameTextStyle: {
color: 'red'
}
},
yAxis: {
type: 'category',
data: days,
splitArea: {
show: true
}
},
visualMap: {
min: 0,
max: 10,
calculable: true,
orient: 'horizontal',
left: 'center',
bottom: '15%'
},
series: [{
name: 'Punch Card',
type: 'heatmap',
data: data,
label: {
normal: {
show: true
}
},
itemStyle: {
emphasis: {
shadowBlur: 10,
shadowColor: 'rgba(0, 0, 0, 0.5)'
}
}
}]
};
// use configuration item and data specified to show chart
this._chart.setOption(option);
}
Ok, I found it.
every time you want to update the theme dynamically example a button or an observable or Promise, you must call this method
echarts.dispose(this._chart);
then you call the initMethod, example:
this.initECharts();
The init method can look like this in my case.
initECharts(days: any, hours: any, data: any) {
data = this.reconstructData(days, hours, data);
// const x: any = document.getElementById('main');
const theme = (this._themeService.theme === 'dark') ? 'dark' : 'light';
console.log('theme', theme);
const domEl: any = this.main.nativeElement;
this._chart = echarts.init(domEl, theme);
// specify chart configuration item and data
const option: any = {
tooltip: {
position: 'top'
},
animation: false,
grid: {
height: '50%',
y: '10%'
},
xAxis: {
type: 'category',
data: hours,
splitArea: {
show: true
},
nameTextStyle: {
color: 'red'
}
},
yAxis: {
type: 'category',
data: days,
splitArea: {
show: true
}
},
visualMap: {
min: 0,
max: 10,
calculable: true,
orient: 'horizontal',
left: 'center',
bottom: '15%'
},
series: [{
name: 'Punch Card',
type: 'heatmap',
data: data,
label: {
normal: {
show: true
}
},
itemStyle: {
emphasis: {
shadowBlur: 10,
shadowColor: 'rgba(0, 0, 0, 0.5)'
}
}
}]
};
// use configuration item and data specified to show chart
this._chart.setOption(option);
}
I am using ECharts Baidu to generate charts. I am using a tornado chart to display the force of left and right arm. The force of the left arm is displayed at the left side and right arm at the right side. Is there a way display the negative value of the label and the axis as positive? I can always hide the axis value so as long as the solution can make the graph to display negative as positive label, I will mark it as solution.
https://echarts.baidu.com/echarts2/doc/example/bar5.html#-en
var option= {
title: {
},
grid: {
top: '10%',
bottom: '25%',
left: '20%',
right: '10%',
},
tooltip: { triggerOn: 'click' },
xAxis: [
{
type: 'value',
name: 'Newton',
nameLocation: 'center',
nameTextStyle: {
padding: 10
},
}
],
yAxis: [
{
axisTick: { show: false },
data: ['FEB']
}
],
barWidth: 40,
series: [
{
type: 'bar',
stack: 'feb',
label: {
normal: {
show: true,
position: 'top',
}
},
data: [{ value: Number(data2[0].left) * -1 }], //the value is from the ajax call
itemStyle: { color: 'gray' }
},
{
type: 'bar',
stack: 'feb',
label: {
normal: {
show: true,
position: 'top'
}
},
data: [Number(data2[0].right)],
itemStyle: { color: '#F26718' },
},
],
textStyle: {
fontWeight: 'bold',
color: 'black'
}
}
chart.setOption(option);
})
try with this:
label: {
normal: {
show: true,
position: 'top',
formatter: function (params) {
return Math.abs(params.value[1]);
}
}
}
this example assumes that the data you passed to the chart is an array like [x, y]. if your input data is different, put a breakpoint inside the formatter function e see how "params" is structured.