I have the world map. I want to change the color of each country to black.
How can I get it?
{
backgroundColor: '#1b1b1b',
color: ['gold','aqua','lime'],
title : {
text: '模拟迁徙',
subtext:'数据纯属虚构',
x:'center',
textStyle : {
color: '#fff'
}
},
tooltip : {
trigger: 'item',
formatter: '{b}'
},
legend: {
orient: 'vertical',
x:'left',
data:['北京 Top10', '上海 Top10', '广州 Top10'],
selectedMode: 'single',
selected:{
'上海 Top10' : false,
'广州 Top10' : false
},
textStyle : {
color: '#fff'
}
},
toolbox: {
show : true,
orient : 'vertical',
x: 'right',
y: 'center',
feature : {
mark : {show: true},
dataView : {show: true, readOnly: false},
restore : {show: true},
saveAsImage : {show: true}
}
},
dataRange: {
min : 0,
max : 100,
calculable : true,
color: ['#ff3333', 'orange', 'yellow','lime','aqua'],
textStyle:{
color:'#fff'
}
},
series : [
{
name: '全国',
type: 'map',
roam: true,
hoverable: false,
mapType: 'world',
itemStyle:{
normal:{
color:'#000',
borderColor:'rgba(100,149,237,1)',
borderWidth:0.5,
areaStyle:{
color: '#000000'
}
}
},
data:[],
markLine : {
smooth:true,
symbol: ['none', 'circle'],
symbolSize : 1,
itemStyle : {
normal: {
color:'#000',
borderWidth:1,
borderColor:'rgba(30,144,255,0.5)'
}
},
data : [
],
},
geoCoord: {
}
}
]
}
http://echarts.baidu.com/option.html#geo.itemStyle.areaColor
you can use areaColor property
itemStyle:{
normal:{
color:'#000',
borderColor:'rgba(100,149,237,1)',
borderWidth:0.5,
areaColor: 'black',
areaStyle:{
color: '#000000'
}
}
}
Related
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);
I am trying to create a chart with chart.js and i am using this plugin for showing some labels. But when most value on top, it not showing. Check first value (5), it not showing. Is any way to show it?
I tried padding for <canvas> but not work.
var ver = document.getElementById("chart").getContext('2d');
var chart = new Chart(ver, {
type: 'bar',
data: {
labels: ['Val1', 'Val2', 'Val3', 'Val4'],
datasets: [{
label: "Value",
borderColor: "#fff",
backgroundColor: "rgba(248,66,113,.85)",
hoverBackgroundColor: "#f84271",
data: [5,3,1,2]
}]
},
options: {
legend: {
display: false,
},
tooltips: {
backgroundColor: 'rgba(47, 49, 66, 0.8)',
titleFontSize: 13,
titleFontColor: '#fff',
caretSize: 0,
cornerRadius: 4,
xPadding: 10,
displayColors: false,
yPadding: 10
},
animation: {
"duration": "1000"
},
scales: {
xAxes: [{
stacked: false,
gridLines: {
drawBorder: true,
display: true
},
ticks: {
display: true
}
}],
yAxes: [{
stacked: false,
gridLines: {
drawBorder: true,
display: true
},
ticks: {
display: true
}
}]
},
plugins: {
labels: {
render: 'value',
}
},
}
});
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/chart.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/emn178/chartjs-plugin-labels/src/chartjs-plugin-labels.js"></script>
<canvas id="chart"></canvas>
Also fiddle here: https://jsfiddle.net/9o84ucny/
https://www.chartjs.org/docs/latest/configuration/layout.html
Use the layout property to options object:
layout: {
padding: {
top: 20
}
}
chart var should be like that:
var chart = new Chart(ver, {
type: 'bar',
data: {
labels: ['Val1', 'Val2', 'Val3', 'Val4'],
datasets: [{
label: "Value",
borderColor: "#fff",
backgroundColor: "rgba(248,66,113,.85)",
hoverBackgroundColor: "#f84271",
data: [5,10,1,2]
}]
},
options: {
layout: {
padding: {
top: 20
}
},
legend: {
display: false,
},
tooltips: {
backgroundColor: 'rgba(47, 49, 66, 0.8)',
titleFontSize: 13,
titleFontColor: '#fff',
caretSize: 0,
cornerRadius: 4,
xPadding: 10,
displayColors: false,
yPadding: 10
},
animation: {
"duration": "1000"
},
scales: {
xAxes: [{
stacked: false,
gridLines: {
drawBorder: true,
display: true
},
ticks: {
display: true
}
}],
yAxes: [{
stacked: false,
gridLines: {
drawBorder: true,
display: true
},
ticks: {
display: true
}
}]
},
plugins: {
labels: {
render: 'value',
}
},
}
});
It also show clear when you use title display true put this inside option
options: {
plugins: {
labels: {
render: 'value',
}
},
title: {
display: true,
},
scales: {
yAxes: [{
ticks: {
beginAtZero: true,
callback: function (value) { if (value % 1 === 0) { return value; } }
}
}]
}
}
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´m trying create a chart with a normal decimal scale on the left and a logarithmic scale on the right side.
the sample shows approximately my result, the only thing missing is that on the scale on the right side I need to present the value of 1000Hz at the exact middle point. (360 line)
function createTympaniHzChart() {
$("#chart5").kendoChart({
title: {
text: "..."
},
series: [{
colorField: "valueColor",
overlay: { gradient: "none" },
border: {
width: 0,
color: ""
},
data: [
{ value: 720, valueColor: "#C60C30" },
{ value: 355, valueColor: "#FFBE25" },
{ value: 340, valueColor: "#2EA1FF" }
]
}],
tooltip: {
visible: true,
format: "{0:0}",
template: "#= value #°"
},
categoryAxis: {
title: {
text: "Lorem Ipsum",
color: "#4D4D4D"
},
majorGridLines: {
visible: false
},
categories: ["A...", "B...", "C..."],
line: {
visible: false
},
axisCrossingValues: [0, 10]
},
valueAxis: [{
title: {
text: "° Insertion Depth",
color: "#4D4D4D"
},
max: 720,
majorUnit: 180,
line: {
visible: false
},
labels: {
format: "{0}°",
position: "start"
}
},
{
title: {
text: "° Pitch (Hz)",
color: "#4D4D4D"
},
max: 10000,
min: 100,
majorUnit:9900,
reverse: true,
line: {
visible: false
},
labels: {
format: "{0}Hz",
position: "end"
}
}
]
});
}
Is there any other way to add this value?
I manage t solve the issue with a custom function for the data and adding type: "log" property to the valueAxis.
Add this to the valueAxis:
data: fibonacciSequence()
The function:
function fibonacciSequence() {
for (i = 100; i <= 10000; i = i * 10) {
var fibAxisValues = [];
fibAxisValues.push(i);
}
return fibAxisValues;
}
Does Chart.js (documentation) have option for datasets to set name (title) of chart (e.g. Temperature in my City), name of x axis (e.g. Days) and name of y axis (e.g. Temperature). Or I should solve this with css?
var lineChartData = {
labels : ["January","February","March","April","May","June","July"],
datasets : [
{
fillColor : "rgba(220,220,220,0.2)",
strokeColor : "rgba(220,220,220,1)",
pointColor : "rgba(220,220,220,1)",
pointStrokeColor : "#fff",
pointHighlightFill : "#fff",
pointHighlightStroke : "rgba(220,220,220,1)",
data : [data]
}
]
}
Realy thanks for help.
In Chart.js version 2.0, it is possible to set labels for axes:
options = {
scales: {
yAxes: [{
scaleLabel: {
display: true,
labelString: 'probability'
}
}]
}
}
See Labelling documentation for more details.
For Chart.js version 3
options = {
scales: {
y: {
title: {
display: true,
text: 'Your Title'
}
}
}
}
If you have already set labels for your axis like how #andyhasit and #Marcus mentioned, and would like to change it at a later time, then you can try this:
chart.options.scales.yAxes[ 0 ].scaleLabel.labelString = "New Label";
Full config for reference:
var chartConfig = {
type: 'line',
data: {
datasets: [ {
label: 'DefaultLabel',
backgroundColor: '#ff0000',
borderColor: '#ff0000',
fill: false,
data: [],
} ]
},
options: {
responsive: true,
scales: {
xAxes: [ {
type: 'time',
display: true,
scaleLabel: {
display: true,
labelString: 'Date'
},
ticks: {
major: {
fontStyle: 'bold',
fontColor: '#FF0000'
}
}
} ],
yAxes: [ {
display: true,
scaleLabel: {
display: true,
labelString: 'value'
}
} ]
}
}
};
For Readers in 2021:
Version
"chart.js": "^3.3.2",
Real World Working Sample:
const optionsTemplate = (yAxisTitle, xAxisTitle) => {
return {
scales: {
yAxes: {
title: {
display: true,
text: yAxisTitle,
font: {
size: 15
}
},
ticks: {
precision: 0
}
},
xAxes: {
title: {
display: true,
text: xAxisTitle,
font: {
size: 15
}
}
}
},
plugins: {
legend: {
display: false,
}
}
}
}
In chart JS 3.5.x, it seems to me the title of axes shall be set as follows (example for x axis, title = 'seconds'):
options: {
scales: {x: { title: { display: true, text: 'seconds' }}}
}
see: https://www.chartjs.org/docs/latest/axes/labelling.html
just use this:
<script>
var ctx = document.getElementById("myChart").getContext('2d');
var myChart = new Chart(ctx, {
type: 'bar',
data: {
labels: ["1","2","3","4","5","6","7","8","9","10","11",],
datasets: [{
label: 'YOUR LABEL',
backgroundColor: [
"#566573",
"#99a3a4",
"#dc7633",
"#f5b041",
"#f7dc6f",
"#82e0aa",
"#73c6b6",
"#5dade2",
"#a569bd",
"#ec7063",
"#a5754a"
],
data: [12, 19, 3, 17, 28, 24, 7, 2,4,14,6],
},]
},
//HERE COMES THE AXIS Y LABEL
options : {
scales: {
yAxes: [{
scaleLabel: {
display: true,
labelString: 'probability'
}
}]
}
}
});
</script>
If you are using chart JS v4 try this.
options = {
scales: {
y: {
title: {
display: true,
text: 'Test'
}
},
x: {
title: {
display: true,
text: 'Test'
}
}
},
plugins: {
legend: {
display: false,
},
}
}
<Scatter
data={data}
// style={{ width: "50%", height: "50%" }}
options={{
scales: {
yAxes: [
{
scaleLabel: {
display: true,
labelString: "Probability",
},
},
],
xAxes: [
{
scaleLabel: {
display: true,
labelString: "Hours",
},
},
],
},
}}
/>
See example with name of x axis and y axis left and right.
public barChartOptions: ChartOptions = {
title: {
display: true,
text: 'Custom Chart Title',
},
responsive: true,
legend: {
position: 'right',
},
scales: {
yAxes: [
{
position: 'right',
scaleLabel: {
display: true,
labelString: 'Frequency Rate - right',
},
},
{
position: 'left',
scaleLabel: {
display: true,
labelString: 'Frequency Rate - left',
},
},
],
xAxes: [
{
display: true,
position: 'bottom',
scaleLabel: {
display: true,
labelString: 'Titulo do eixo X',
fontStyle: 'italic',
fontSize: 12,
fontColor: '#030',
},
},
],
},
};