Does anybody know. How to make a multiple lines of axis label with Echart (https://echarts.apache.org/examples/en/)?
I need a group label (year, season, ..) and vertical lines for separating groups.
Thank you.
Vertical lines can draw with markLine, see example.
Just add second xAxis with desired labels, something like this:
var myChart = echarts.init(document.getElementById('main'));
var option = {
tooltip: {},
xAxis: [{
data: ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December']
},{
position: 'bottom',
offset: 30,
axisLine: {
show: false,
},
axisTick: {
show: false,
},
data: ['Winter', 'Spring', 'Summer', 'Autumn']
}],
yAxis: {},
series: [{
name: 'Series',
type: 'bar',
data: [5, 20, 36, 10, 10, 20,5, 20, 36, 10, 10, 20]
}]
};
myChart.setOption(option);
<script src="https://cdn.jsdelivr.net/npm/echarts#4.8.0/dist/echarts.min.js"></script>
<div id="main" style="width: 1024px;height:400px;"></div>
I want to color the area "under" the graph (i.e. between zero and value) green when positive, and red when negative, on an eCharts line graph.
Like this
We have already done it with a bar graph (below), but now we need to do it with a line graph.
You can achieve this by setting the visualMap property. I have done some hit and trial and achieved the following.
var myChart = echarts.init(document.getElementById('main'));
option = {
xAxis: {
type: 'category',
boundaryGap: false,
data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
},
yAxis: {
type: 'value'
},
series: [{
data: [820, 932, 901, -1200, -800, 1330, 1320],
type: 'line',
areaStyle: {}
}],
visualMap: {
left: 'right',
min: 0,
max: 1,
inRange: {
color: ['red', 'green']
},
text: ['>0', '<0'],
calculable: true
},
};
// use configuration item and data specified to show chart
myChart.setOption(option);
<script src="https://cdnjs.cloudflare.com/ajax/libs/echarts/4.6.0/echarts.min.js"></script>
<div id="main" style="width: 600px;height:400px;"></div>
I'm creating a stacked bar graph and need to show the label inside the stack. But Few of the label's are getting overlapped. for reference image
Can you please help me how to avoid overlapping using google charts ?
<html>
<head>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<div id="chart_div"></div>
<script type="text/javascript">
google.charts.load('current', {packages: ['corechart', 'bar']});
google.charts.setOnLoadCallback(drawStacked);
function drawStacked() {
var data = new google.visualization.arrayToDataTable([['Time Period','XYZ',{ role: 'annotation'},'ABC',{ role: 'annotation'},{ role: 'annotation'},'Average'],
['Aug', 3754,'3754', 2089,'2089','5,843',4000],
['Sept', 900,'900', 200,'200', '100',4000],
['Oct', 2000,'2000', 4900,'4900', '6000',4000],
['Nov', 1700,'1700', 2200,'2200', '3900',4000],
['Dec', 2400,'2400', 2089,'2200', '4600',4000]
]);
var options = {
title: 'Overview of the Tickets',
isStacked: true,
orientation: 'horizontal',
hAxis: {
title: 'Time Period',
annotations: {}
},
vAxis: {
title: 'Number of Tickets'
},
seriesType: 'bars',
series: {2: {type: 'line'}}
};
var chart = new google.visualization.ComboChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
</script>
</head>
</html>
Regards,
Srikanth
first, it appears you have an extra annotation column in your data,
that doesn't appear to belong to a specific column
copied from question above...
var data = new google.visualization.arrayToDataTable([
[
'Time Period',
'XYZ',
{role: 'annotation'},
'ABC',
{role: 'annotation'},
{role: 'annotation'}, // <-- extra annotation?
'Average'
],
[
'Aug',
3754,
'3754',
2089,
'2089',
'5,843', // <-- extra annotation?
4000
],
...
]);
this could be part of the reason it's so cluttered
regardless, use the annotations configuration option for adjustments
the config option can be used for the entire chart, or just for a specific series
var options = {
// entire chart
annotations: {
textStyle: {
fontSize: 10
}
},
series: {
0: {
// series 0
annotations: {
stem: {
length: 0
},
},
},
1: {
// series 1
annotations: {
stem: {
length: 16
}
},
},
}
...
};
specifically, you can use a combination of annotations.textStyle.fontSize and annotations.stem.length to prevent overlapping
see following working snippet...
annotations.textStyle.fontSize is reduced for the entire chart
this allows the first annotation on the second column to fit within the bar
annotations.stem.length is set to zero (0) on the first series,
and 16 on the second...
(the extra annotation from the question has been removed)
google.charts.load('current', {
callback: drawStacked,
packages: ['corechart']
});
function drawStacked() {
var data = new google.visualization.arrayToDataTable([
['Time Period', 'XYZ', {role: 'annotation'}, 'ABC', {role: 'annotation'}, 'Average'],
['Aug', 3754, '3754', 2089, '2089', 4000],
['Sept', 900, '900', 200, '200', 4000],
['Oct', 2000, '2000', 4900, '4900', 4000],
['Nov', 1700, '1700', 2200, '2200', 4000],
['Dec', 2400, '2400', 2089, '2200', 4000]
]);
var options = {
annotations: {
textStyle: {
fontSize: 10
}
},
series: {
0: {
annotations: {
stem: {
length: 0
},
},
},
1: {
annotations: {
stem: {
length: 16
}
},
},
2: {
type: 'line'
}
},
hAxis: {
title: 'Time Period'
},
isStacked: true,
seriesType: 'bars',
title: 'Overview of the Tickets',
vAxis: {
title: 'Number of Tickets'
}
};
var chart = new google.visualization.ComboChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
<script src="https://www.gstatic.com/charts/loader.js"></script>
<div id="chart_div"></div>
EDIT
since the third annotation is needed as the total of the other two stacks,
recommend adding the series value for the total, in addition to the annotation column
and setting the total series type to 'line'
this will place the total annotation above the rest, for sure
so long as there is enough room on the chart to display the annotation above the bars
to ensure enough room above bars, find the max vAxis value, and add a value that will create enough room for the annotation
then set that value as vAxis.viewWindow.max
you can turn off the line and point, and hide the total series from the legend if needed
in my experience, it takes quite a bit of manipulation to get a complex google chart to display nicely
see the following working snippet, which incorporates the third, 'total', annotation...
google.charts.load('current', {
callback: drawStacked,
packages: ['corechart']
});
function drawStacked() {
var data = new google.visualization.arrayToDataTable([
['Time Period', 'XYZ', {role: 'annotation'}, 'ABC', {role: 'annotation'}, 'TOTAL', {role: 'annotation'}, 'Average'],
['Aug', 3754, '3,754', 2089, '2,089', 5843, '5,843', 4000],
['Sept', 900, '900', 200, '200', 1100, '1,100', 4000],
['Oct', 2000, '2,000', 4900, '4,900', 6900, '6,900', 4000],
['Nov', 1700, '1,700', 2200, '2,200', 3900, '3,900', 4000],
['Dec', 2400, '2,400', 2089, '2,089', 4489, '4,489', 4000]
]);
// find max for all columns to set top vAxis number
var maxVaxis = 0;
for (var i = 1; i < data.getNumberOfColumns(); i++) {
if (data.getColumnType(i) === 'number') {
maxVaxis = Math.max(maxVaxis, data.getColumnRange(i).max);
}
}
var options = {
annotations: {
textStyle: {
fontSize: 10
}
},
series: {
0: {
annotations: {
stem: {
length: 0
},
}
},
1: {
annotations: {
stem: {
length: 2
}
}
},
2: {
annotations: {
stem: {
color: 'transparent',
length: 16
}
},
color: 'black',
lineWidth: 0,
pointShape: 'square',
pointSize: 0,
type: 'line',
visibleInLegend: false
},
3: {
type: 'line'
}
},
hAxis: {
title: 'Time Period'
},
isStacked: true,
seriesType: 'bars',
title: 'Overview of the Tickets',
vAxis: {
title: 'Number of Tickets',
viewWindow: {
max: maxVaxis + 2000
}
}
};
var chart = new google.visualization.ComboChart(document.getElementById('chart_div'));
chart.draw(data, options);
}
<script src="https://www.gstatic.com/charts/loader.js"></script>
<div id="chart_div"></div>
I think it happens because there's not enough vertical space for the labels.
Try this:
Save the highest value of the graph (let's call it maxNumber)
In the "options" set vAxis maxValue to be maxNumber plus a little more.
I have 4 horizontal lines in my graph so I wrote:
var options = {
title: chartTitle,
....... //Your options
vAxis: {
//Add more space in order to make sure the annotations are not overlapping
maxValue: maxNumber + maxNumber/4,
},
I would like to know if anyone can figure out how I can change this line chart to a pie chart and still make the button change the color of the pie color like it did the line color?
http://jsfiddle.net/jugal/637ns/
$(function () {
var chart = new Highcharts.Chart({
chart: {
renderTo: 'container'
},
xAxis: {
categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
},
series: [{
data: [29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4]
}]
});
// the button handler
$('#button').click(function() {
chart.series[0].color = "#FF0000";
chart.series[0].graph.attr({ stroke: '#FF0000' });
$.each(chart.series[0].data, function(i, point) {
point.graphic.attr({ fill: '#FF0000' });
});
chart.redraw();
});
});
I would like to add a click event to change the color of the pie chart.
Thanks!
You should use attribute fill to change slice color: http://jsfiddle.net/637ns/8/
chart.series[0].data[4].graphic.attr({ fill: '#FF0000' });
I am trying to build an Area Graph using Highcharts library. All of a sudden i see that there is some spacing on the x-axis before my actual data starts. I want to start the graph right from [0,0] axis with appropriate data.
<?php
$data1 = array(3300, 3000, 4300, 4200, 2900, 1900, 1800);
?>
<script type="text/javascript">$(function () {
var chart = new Highcharts.Chart({
chart: {
renderTo: 'areachart',
type: 'area'
},
title: {
text: 'People'
},
credits: {
enabled: false
},
xAxis: {
startOnTick: false,
categories: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat']
},
yAxis: {
title: {
text: null
},
labels: {
formatter: function() {
return this.value;
}
}
},
plotOptions: {
area:{
dataLabels: {
enabled: true
}
}
},
series: [{
data: [<?php foreach($data1 as $da):
echo $da.', ';
endforeach;
?>
]
}]
});
});
</script>
Good news, it is possible... with some caveats.
xAxis: {
categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
min:0.5,
max:10.5,
tickInterval:1,
maxPadding:0,
endOnTick:false,
startOnTick:false
}
http://jsfiddle.net/eg9jn/
Here are the important bits:
The min and max are set to be 0.5 "inside" the chart.
start/endOnTick are set to false.
One caveat: This doesn't work when there are only two categories...
This is not possible since you are using categories for the xAxis. Labels and points for categories are always set in the middle of the category. The first and last category therefore have the gap you want to get rid of.
But in this case, it's not a bug, it's a feature.
You could try and modify your xAxis to use a normal axis and use a custom label formatter to display the days instead of numbers.