Getting selected value from parallel coordinates chart using ngx-echarts - echarts

I'm having trouble on getting the events to work on my chart. I need to get the value of selected area of my parallel coordinates chart. I tried using chartDataRangeSelected but it does nothing when I select some data.
Here's my code:
<div echarts [options]="chartOption" class="demo-chart" (chartInit)="onChartInit($event)" (chartDataRangeSelected)="onChartSelect($event)"></div>
Chart config:
chartOption: EChartOption = {
title: {
text: 'Demo Parallel Coordinates',
subtext: 'data from macrofocus',
left: 'center',
top: 5,
itemGap: 0,
textStyle: {
color: '#000000'
},
z: 200
},
parallelAxis: this.makeParallelAxis(this.schema),
grid: [{
show: true,
left: 0,
right: 0,
top: '0',
bottom: 0,
borderColor: 'transparent',
backgroundColor: 'white',
z: 99
}],
parallel: {
top: '10%',
left: 100,
right: 100,
bottom: 100,
axisExpandable: true,
axisExpandCenter: 15,
axisExpandCount: 10,
axisExpandWidth: 60,
axisExpandTriggerOn: 'mousemove',
z: 100,
parallelAxisDefault: {
type: 'value',
nameLocation: 'start',
nameRotate: 25,
// nameLocation: 'end',
nameTextStyle: {
fontSize: 12
},
nameTruncate: {
maxWidth: 170
},
nameGap: 20,
splitNumber: 3,
tooltip: {
show: true
},
axisLine: {
// show: false,
lineStyle: {
width: 1,
color: '#000000'
}
},
axisTick: {
show: false
},
splitLine: {
show: false
},
z: 100
}
},
series: [
{
name: 'parallel',
type: 'parallel',
smooth: true,
lineStyle: {
color: '#577ceb',
width: 0.5,
opacity: 0.6
},
z: 100,
data: this.rawData
}
]
};
Function:
onChartSelect(e){
console.log(e);
}
Am I using the correct events for doing so? Your help will be much appreciated.
Thanks

according to eCharts document,
the selectDataRange Event emitted after range is changed in visualMap. https://www.echartsjs.com/en/api.html#events.datarangeselected,
which is chartDataRangeSelected of ngx-echarts mapped to.
And you can see that, it is an event related to visualMap. your charts does not have a visual map at all, so i guess the event will not be fired.
You can try chartAxisAreaSelected, as this is more related to your chart.

Related

How to make a colored circle pointer with white center in Apache eCharts?

I'm trying to re-create this example picture using Apache eCharts:
This is what my Apache eCharts version looks like so far:
As you can see, I have almost finished re-creating it.
The only part I can't figure out is how to make the small circle pointer to be a colored circle with white center. The color of the pointer should match the color of axis line it is on.
Currently mine is grey, which doesn't look good.
Here is my code:
const gaugeOption = {
series: [
{
data: gaugeData,
type: 'gauge',
startAngle: 180,
endAngle: 0,
min: 0,
max: 100,
splitNumber: 3,
pointer: {
icon: 'circle',
length: '12%',
width: 50,
offsetCenter: [0, '-90%'],
itemStyle: {
color: '#FFFFFF',
borderColor: 'auto', // This doesn't work :(
borderWidth: 5,
shadowColor: 'rgba(10, 31, 68, 0.5)',
shadowBlur: 2,
shadowOffsetY: 1,
},
},
axisLine: {
show: true,
roundCap: true,
lineStyle: {
width: 9,
color: [
[0.5, '#e76262'],
[0.54],
[0.66, '#f9cf4a'],
[0.7],
[0.83, '#eca336'],
[0.87],
[1, '#3ece80'],
],
},
},
axisTick: {
length: 2,
lineStyle: {
color: '#8a94a6',
width: 2,
},
},
splitLine: {
show: false,
},
axisLabel: {
show: false,
},
title: {
show: false,
},
detail: {
rich: {
header: {
fontSize: 36,
fontWeight: 700,
fontFamily: 'Open Sans',
color: '#0a1f44',
},
subHeader: {
fontSize: 16,
fontWeight: 400,
fontFamily: 'Open Sans',
color: '#8a94a6',
},
},
formatter: ['{header|{value}}', '{subHeader|15-30-2022}'].join('\n'),
offsetCenter: [0, '-20%'],
valueAnimation: true,
},
},
],
}
EDIT:
I have also tried specifying the colors directly as per below. It makes no difference. The border or the circle pointer remains a grey color:
pointer: {
icon: 'circle',
length: '12%',
width: 50,
offsetCenter: [0, '-90%'],
itemStyle: {
color: '#FFFFFF',
borderColor: [
[0.5, '#e76262'],
[0.66, '#f9cf4a'],
[0.83, '#eca336'],
[1, '#3ece80'],
],
borderWidth: 5,
shadowColor: 'rgba(10, 31, 68, 0.5)',
shadowBlur: 2,
shadowOffsetY: 1,
},
},
The only way I can change it's color is to set it to a single static color, but that is not what I want, it should adapt to the color of the axis beneath it.
Set borderColor to a variable. Then change this variable when the gauge value is changed, depending on its new position.
You'll also have to use setOption() to make the change effective on the chart.
//update your variable however you want
myBorderColor = '#f00';
//then make the change to the chart
myChart.setOption({
series: [
{
pointer: {
itemStyle : {
borderColor: myBorderColor
},
},
},
],
});

How to set a second variable for Apcahe eCharts detail.formatter?

My data lives inside a variable named gaugeData. And it has two properties value and date.
And in Apache eCharts I am trying to use detail.formatter to create two headings with different text styles, like this:
formatter: ['{header|{value}}', '{subHeader|{date}}'].join('\n')
The first header displays the value, and the second subHeader displays the date.
Currently, the value is displaying correctly but the date is not.
Here is a screenshot of how it looks:
How do I make the date also work as a variable?
I don't care if date lives outside the gaugeData, I just need it to be a variable of some kind.
Here is my full code:
const gaugeData = [
{
value: 80,
date: '15-30-2022',
},
];
const gaugeOption = {
series: [
{
data: gaugeData,
type: 'gauge',
startAngle: 180,
endAngle: 0,
min: 0,
max: 100,
splitNumber: 3,
pointer: {
icon: 'circle',
length: '12%',
width: 50,
offsetCenter: [0, '-90%'],
itemStyle: {
color: '#FFFFFF',
borderColor: borderColor,
borderWidth: 5,
shadowColor: 'rgba(10, 31, 68, 0.5)',
shadowBlur: 1,
shadowOffsetY: 1,
},
},
axisLine: {
show: true,
roundCap: true,
lineStyle: {
width: 9,
color: [
[0.5, '#e76262'],
[0.54],
[0.66, '#f9cf4a'],
[0.7],
[0.83, '#eca336'],
[0.87],
[1, '#3ece80'],
],
},
},
axisTick: {
length: 2,
lineStyle: {
color: '#8a94a6',
width: 2,
},
},
splitLine: {
show: false,
},
axisLabel: {
show: false,
},
title: {
show: false,
},
detail: {
rich: {
header: {
fontSize: 36,
fontWeight: 700,
fontFamily: 'Open Sans',
color: '#0a1f44',
},
subHeader: {
fontSize: 16,
fontWeight: 400,
fontFamily: 'Open Sans',
color: '#8a94a6',
},
},
formatter: ['{header|{value}}', '{subHeader|{date}}'].join('\n'),
offsetCenter: [0, '-20%'],
valueAnimation: true,
},
},
],
};
Figured it out.
The formatter can take a callback function where you can reference any other variable you like.
So when using Vue my data variables can look like this:
const scoreDate = ref('15-30-2022');
const scoreValue = ref(80);
const gaugeData = [
{
value: scoreValue.value,
},
];
And the formatter property of the options object looks like this:
formatter: function (data: number) {
return `{header|${data}} \n {subHeader|${scoreDate.value}}`;
},

How to display an SVG as `data.name` in gauge chart in ECharts?

I want to display the following image instead of Label in a gauge chart:
<?xml version="1.0" encoding="UTF-8"?>
<svg width="33.614mm" height="23.031mm" version="1.1" viewBox="0 0 33.614 23.031" xmlns="http://www.w3.org/2000/svg">
<g transform="translate(-34.286 -116.77)">
<path
d="m35.218 128.28 2.6458-10.583 2.6458 10.583 2.6458 10.583 5.2916-21.166 5.2916 21.166 5.2916-21.166 5.2916 21.166 2.6458-10.583v0"
fill="none" stroke="#000" stroke-linecap="round"
stroke-linejoin="round" stroke-width="1.865"
/>
</g>
</svg>
Here is the chart:
option = {
series: [
{
type: 'gauge',
startAngle: 200,
endAngle: -20,
center: ['50%', '70%'],
axisLine: {
lineStyle: {
width: 8,
color: [
[0.3, 'red'],
[0.7, 'orange'],
[1, '#96BE0F']
]
}
},
pointer: {
itemStyle: {
color: 'auto'
}
},
axisTick: {
distance: -15,
length: 5,
lineStyle: {
color: '#fff',
width: 1
}
},
splitLine: {
distance: -15,
length: 8,
lineStyle: {
color: '#fff',
width: 2
}
},
axisLabel: {
color: 'auto',
distance: -20,
fontSize: 12
},
detail: {
valueAnimation: true,
formatter: '{value} %',
color: 'auto',
},
data: [
{
value: 50,
name: 'Label',
// image: 'path://m57.046 134.9v-13.229m3.9688 12.7h2.6458v-12.171h-2.6458m-22.49 12.7h18.521v2.6458l3.9687 1e-5 1e-6 -18.521h-3.9688v2.6458h-18.521v0h-1e-6'
}
],
title: {
fontSize: 20,
fontWeight: 800,
fontFamily: 'Arial',
color: 'grey',
offsetCenter: [0, '-70%'],
// image: 'path://m57.046 134.9v-13.229m3.9688 12.7h2.6458v-12.171h-2.6458m-22.49 12.7h18.521v2.6458l3.9687 1e-5 1e-6 -18.521h-3.9688v2.6458h-18.521v0h-1e-6'
},
}
]
};
I want to insert that image with fill="none" stroke="#000" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.865".
I only could output the image in a pictorial chart, but even then I could not make it not to fill anything.
Update
I was able to output a PNG image using graphic, but not an SVG. Has anyone have a clue why? How can I output an SVG image?
option = {
xAxis: {show: false},
yAxis: {show: false},
series: [
{
type: 'gauge',
startAngle: 200,
endAngle: -20,
center: ['50%', '70%'],
axisLine: {
lineStyle: {
width: 8,
color: [
[0.3, 'red'],
[0.7, 'orange'],
[1, '#96BE0F']
]
}
},
pointer: {
itemStyle: {
color: 'auto'
}
},
axisTick: {
distance: -15,
length: 5,
lineStyle: {
color: '#fff',
width: 1
}
},
splitLine: {
distance: -15,
length: 8,
lineStyle: {
color: '#fff',
width: 2
}
},
axisLabel: {
color: 'auto',
distance: -20,
fontSize: 12
},
detail: {
valueAnimation: true,
formatter: '{value} %',
color: 'auto'
},
data: [50]
},
],
graphic: {
type: 'image',
left: 'center',
bottom: 495,
offsetCenter: [0, '-60%'],
style: {
image: 'https://i.imgur.com/4KIo3sb.png',
// image: 'path://M29.902,23.275c1.86,0,3.368-1.506,3.368-3.365c0-1.859-1.508-3.365-3.368-3.365 c-1.857,0-3.365,1.506-3.365,3.365C26.537,21.769,28.045,23.275,29.902,23.275z M36.867,30.74c-1.666-0.467-3.799-1.6-4.732-4.199 c-0.932-2.6-3.131-2.998-4.797-2.998s-7.098,3.894-7.098,3.894c-1.133,1.001-2.1,6.502-0.967,6.769 c1.133,0.269,1.266-1.533,1.934-3.599c0.666-2.065,3.797-3.466,3.797-3.466s0.201,2.467-0.398,3.866 c-0.599,1.399-1.133,2.866-1.467,6.198s-1.6,3.665-3.799,6.266c-2.199,2.598-0.6,3.797,0.398,3.664 c1.002-0.133,5.865-5.598,6.398-6.998c0.533-1.397,0.668-3.732,0.668-3.732s0,0,2.199,1.867c2.199,1.865,2.332,4.6,2.998,7.73 s2.332,0.934,2.332-0.467c0-1.401,0.269-5.465-1-7.064c-1.265-1.6-3.73-3.465-3.73-5.265s1.199-3.732,1.199-3.732 c0.332,1.667,3.335,3.065,5.599,3.399C38.668,33.206,38.533,31.207,36.867,30.74z',
width: 80
}
}
}

creating a custom scrollbar in echarts using dataZoom

I am trying to create a scrollbar like the one below using echarts
So far I have managed to get the scroll using dataZoom feature but I haven't been able to style it like a normal scroll bar.
const dataY = [
'a',
'b',
'v',
'd',
'e',
'f',
'x',
'g',
'h',
'i',
'j',
'k',
'l',
'm',
'n'
]; // 名称
const dataX = [
20, 50, 15, 35, 50, 30, 40, 50, 60, 20, 50, 15, 35, 50, 30, 40, 50, 60
]; // 数据
option = {
backgroundColor: '#1C1C1C',
grid: {
top: '10%',
right: '10%',
left: '10%',
bottom: '10%'
},
yAxis: [
{
type: 'category',
data: dataY,
axisLine: {
lineStyle: {
color: '#333333'
}
},
axisLabel: {
interval: 0,
margin: 10,
color: '#999999',
textStyle: {
fontSize: 11
},
rotate: '0'
},
axisTick: {
show: false
}
}
],
xAxis: [
{
axisLabel: {
padding: [3, 0, 0, 0],
formatter: '{value}',
color: '#999999',
textStyle: {
fontSize: 11
}
},
axisTick: {
show: true
},
axisLine: {
lineStyle: {
color: '#333333'
}
},
splitLine: {
lineStyle: {
color: '#333333'
}
}
}
],
dataZoom: [
{
type: 'slider',
yAxisIndex: 0,
zoomLock: true,
width: 5,
right: 10,
top: '10%',
bottom: '10%',
start: 70,
end: 20,
brushSelect: false,
handleSize: '60%',
showDetail: false,
backgroundColor: '#000',
borderColor: '#000',
opacity: 1,
brushStyle: false,
handleStyle: {
color: '#FF6700',
borderColor: '#FF6700'
}
},
{
type: 'inside',
id: 'insideY',
yAxisIndex: 0,
start: 15,
end: 20,
zoomOnMouseWheel: false,
moveOnMouseMove: true,
moveOnMouseWheel: true,
backgroundColor: 'transparent'
}
],
series: [
{
type: 'bar',
data: dataX,
barWidth: '5',
itemStyle: {
normal: {
color: '#FF6700',
shadowBlur: 4,
borderRadius: 100
}
},
label: {
normal: {
show: false,
lineHeight: 4,
formatter: '{c}',
position: 'top',
textStyle: {
color: '#fff',
fontSize: 10
}
}
}
}
]
};
I am left with a weird scrollbar that works as it should be unfortunately looks really weird.
I had the exact same issue as you, and i found a turnaround.
Instead of using the datazoom from ECharts as a scrollbar, you can just use the overflow of the div of the chart, and you can costumize it as you want with css. First you need to comment or delete the part of the datazoom in you code and change the html and css as this:
<div class="grid" [style.width.%]="100" [style.height.%]="100" #wrapper>
<div class="ChartDiv" echarts [options]="options" [style.width.px]="ganttWidth" [style.height.px]="ganttHeight"></div>
</div>
Then you just have to define the css like this:
.grid {
overflow-y: scroll !important;
//hidden if you dont want the x-Axis to have a scroll
overflow-x: hidden !important;
}
//Change the css as you want
::-webkit-scrollbar {
width: 16px;
}
::-webkit-scrollbar-track {
background-color: #e4e4e4;
border-radius: 100px;
}
With this code, your graph will have this aspect:
Now you just need to change your css as you want the style of this xD.

How to use gradient and single color at the same time in Apex Chart?

How to add gradient (mixed with two colors) for one bar chart column and on top of that stack another column with (single color)?
Currently, I am trying to figure it out how to implement gradient and single color pattern in ApexChart.js. As for now, I can only use one at the same time...
JavaScript:
var colors = ["#A865AA", "#222130",];
var dataColors = $("#monthlycost-ApexChart").data('colors');
if (dataColors) {
colors = dataColors.split(",");
}
var options = {
chart: {
height: 260,
type: 'bar',
stacked: true,
stackType: '10%',
toolbar: {
show: false
},
},
stroke: {
curve: 'smooth',
width: 1
},
grid: {
column: {
colors: ['transparent', '#e5e5e5'],
},
},
plotOptions: {
bar: {
columnWidth: '20%',
endingShape: 'rounded',
}
},
dataLabels: {
enabled: false
},
series: [{
name: 'Cost',
data: [5.7, 5.7, 5.4, 5.4, 5.2, 7.8, 5.6, 5.4, 5.7, 0, 0, 0]
}, {
data: [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12]
}],
xaxis: {
labels: {
show: true,
style: {
fontSize: '10px'
},
padding: {
top: 0,
bottom: 20
},
},
offsetY: -10,
position: 'bottom',
axisBorder: {
show: false
},
axisTicks: {
show: false
},
lines: {
show: false
},
categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
padding: {
top: -5,
bottom: 0
},
},
yaxis: {
axisBorder: {
show: false
},
axisTicks: {
show: false
},
lines: {
show: false
},
title: {
text: '£0,000',
style: {
fontWeight: 400,
fontSize: '9px',
}
},
tickAmount: 5,
forceNiceScale: false,
decimalsInFloat: 0,
max: 10,
},
fill: {
type: "gradient",
/* gradient: {
shadeIntensity: 1,
opacityFrom: 0.7,
type: 'vertical',
opacityTo: 0.9,
colorStops: [
{
offset: 40,
color: "#EF9432",
opacity: 1
},
{
offset: 100,
color: "#A865AA",
opacity: 1
}
]
}*/
},
legend: {
show: false,
},
colors: colors,
grid: {
row: {
show: false,
},
borderColor: '',
padding: {
bottom: 5,
top: 1
}
}
}
Need to get this
Currently have
You should use distributed property
plotOptions: {
bar: {
distributed: true
}
}