I am trying to set custom colors in a c3.js timeseries chart following this example. The first element of each array is used to identify the dataset, so if I have an array:
var datatest1 = ['data1', 30, 200, 100, 400, 150, 250];
the color property can be accessed like this:
colors: {data1:'#0000'}
or:
colors: {'data1':'#0000'}
However, if I use the first element of the array to access them:
var data1id = datatest1[0];
and then:
colors: {data1id:'#0000'}
It fails. Not sure what I may doing wrong as I get no feedback in the browser...
Here is a working example:
var axis = ['x', '2013-01-01', '2013-01-02', '2013-01-03', '2013-01-04', '2013-01-05', '2013-01-06'];
var datatest2 = ['data2', 130, 340, 200, 500, 250, 350];
var datatest1 = ['data1', 30, 200, 100, 400, 150, 250];
var data1id = datatest1[0];
var data2id = datatest2[0];
var chart = c3.generate({
data: {
x: 'x',
columns: [
axis,
datatest1,
datatest2
],
colors: {
//data1: '#0000',
//data2: '#0000'
datatest1: '#0000',
datatest2: '#0000'
}
},
axis: {
x: {
type: 'timeseries',
tick: {
format: '%Y-%m-%d'
}
}
}
});
----- EDIT
I am doing this because the data (including the identifier) is generated dynamically. Thanks
You can dynamically create the colors object like this.
var colors = {};
colors[datatest1[0]] = '#0000';
colors[datatest2[0]] = '#0000';
then set it in the graph like this
var chart = c3.generate({
data: {
x: 'x',
columns: [
axis,
datatest1,
datatest2
],
colors: colors //set colors object created above
},
axis: {
x: {
type: 'timeseries',
tick: {
format: '%Y-%m-%d'
}
}
}
});
working code here
Related
I need to visualize the bar chart with Javascript. So I'm used C3 JS to visualize the chart. Simply I'm using this Bar chart as follows,
<div id="chart"></div>
<script>
var chart = c3.generate({
bindto: '#chart',
data: {
columns: [
['data1', 30, 200, 100, 400, 150, 250],
['data2', 50, 20, 10, 40, 15, 25]
],
axes: {
data2: 'y2'
},
types: {
data2: 'bar'
}
},
axis: {
y: {
label: {
text: 'Y Label',
position: 'outer-middle'
},
tick: {
format: d3.format("$,") // ADD
}
},
y2: {
show: true,
label: {
text: 'Y2 Label',
position: 'outer-middle'
}
}
}
});
</script>
But the problem is when X-axis consists of the large data set Chart getting cramped. I have more than 700 data.
Have any possible way to avoid this? can I add scroll bar between primary and secondary X-axis?
Google, such a wonderfull thing ;)
https://c3js.org/samples/interaction_zoom.html
or this
C3 / D3 bar chart with horizontal scroll
I am trying to add labels to my bar chart. See the JS fiddle and code below. How would I change my code to add labels?
http://jsfiddle.net/amwmedia/8kqvyhqv/
var myNewChart;
var data = [
{
value: 30,
label: "hello",
color: "#F7464A"
}, {
value: 50,
color: "#E2EAE9"
}, {
value: 100,
color: "#D4CCC5"
}, {
value: 40,
color: "#949FB1"
}, {
value: 100,
color: "#4D5360"
},
];
var options = {
animation: true,
animationEasing: 'easeInOutQuart',
animationSteps: 80,
multiTooltipTemplate: "<%= datasetLabel %> - <%= value %>"
};
var ctx = document.getElementById("myChart")
.getContext("2d");
myNewChart = new Chart(ctx).Doughnut(data, options);
I noticed your jsfiddle is using chart.js version 1. My answer uses version 2, as that is all I could find documentation for.
Looks like all you need to do is put labels in the data object:
var data = {
labels: [
"label1",
"label2",
"label3",
"label4",
"label5"
],
datasets: [
{
data: [
30,
50,
100,
40,
100
],
backgroundColor:[
'#F7464A',
'#E2EAE9',
'#D4CCC5',
'#949FB1',
'#4D5360'
]
}]
};
See fiddle. (this is using Chart.js 2.0)
Scenario: I need to show a bar chart about payment details, how much the customers paid for a product using Card, Cheque or Cash. And also need to display the total value in a stacked bar chart.
var chart = c3.generate({
data: {
columns: [
['Cash', 30, 200, 100, 400, 150, 250],
['Card', 130, 100, 140, 200, 150, 50],
['Total', 160,300,240,600,300,300]
],
groups:[['Cash','Card']],
type: 'bar'
}
});
Output:
I need to show the Total value but not the bar and the legend. How can do this? Any advice would be helpful. Thank you.
You don't need the total dataset, you can alter the tooltip contents to calculate it on the fly (adapting the technique found in the answer here -> https://stackoverflow.com/a/36789099/368214)
var chart = c3.generate({
data: {
columns: [
['Cash', 30, 200, 100, 400, 150, 250],
['Card', 130, 100, 140, 200, 150, 50],
],
groups:[['Cash','Card']],
type: 'bar'
},
tooltip : {
contents: function (d, defaultTitleFormat, defaultValueFormat, color) {
var total = d.reduce (function(subTotal,b) { return subTotal + b.value; }, 0);
d.push ({value: total, id: "Total", name: "Total", x:d[0].x , index:d[0].index});
return this.getTooltipContent(d, defaultTitleFormat, defaultValueFormat, color);
}
}
});
The total value is calculated using .reduce to sum all the other values at that point. Then make a new data point for the tooltip called 'Total' using that value and pass it to the default renderer for drawing (this.getTooltipContent)
http://jsfiddle.net/vz1rwvwn/
I have an api giving me back multiple arrays I have to place on a c3 line chart. I seem to be able to plot on just fine, but if I start to pass in multiples it starts having a fit. I've done some searching, but from what I've seen mine needs to be more dynamic than calling out specific variable names in the data because I don't know how many I will have at any given time.
My code kind of looks like this
array1 = [];
array2 = [];
array 3 = [];
Data = ?;
c3.generate({
bindto: '.timeline',
data:{
columns: [
Data,
],
axes: {
data2: 'x' // ADD
}
},
axis: {
y: {
label: { // ADD
text: 'Waiting',
position: 'outer-middle'
}
},
x: {
type: 'category',
categories: hour,
show: true, // ADD
label: { // ADD
text: '',
position: 'outer-center'
}
}
}
});
I've seen around to do something like this
columns: [
Data1,
Data2,
Data3
],
Is there any way I can put those arrays into one variable to pass into the c3 graph? I've tried making an array of arrays and passing that in. I've also tried putting them into an object, but that just blew it up too. Any help would be appreciated!
Should be pretty straight-forward to get the three arrays into an array of arrays, which is the columns array.
var array1 = ['data1', 30, 200, 100, 400, 150, 250];
var array2 = ['data2', 50, 20, 10, 40, 15, 25];
var array3 = ['data3', 230, 190, 300, 500, 300, 400];
var Data = [array1, array2, array3];
c3.generate({
bindto: '.timeline',
data: {
columns: Data
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/c3/0.4.10/c3.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/c3/0.4.10/c3.min.css" rel="stylesheet" />
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script>
<div class='timeline' />
If I have a C3JS grouped bar chart defined like the following, how can I get the segments to stay in the order I've defined them instead of in ascending order by value? By default C3 will order them as 5, 10, 40, but I want it to remain as 10, 40, 5.
c3.generate({
bindto: '.active-loads',
data: {
columns: [
['Picking up future', 10],
['Enroute', 40],
['Delivered', 5]
],
type: 'bar',
groups: [
['Picking up future', 'Enroute', 'Delivered']
],
onclick: function(d) {
console.debug(d);
}
},
axis: {
rotated: true,
x: {
show: false
}
}
});
EDIT
Turns out it's as easy as specifying order: null in the data property.
C3js documentation has page for this : http://c3js.org/samples/data_order.html
You can order your data in following way :
var chart = c3.generate({
data: {
columns: [
['data1', 130, 200, 320, 400, 530, 750],
['data2', -130, 10, 130, 200, 150, 250],
['data3', -130, -50, -10, -200, -250, -150]
],
type: 'bar',
groups: [
['data1', 'data2', 'data3']
],
order: 'desc' // stack order by sum of values descendantly.
// order: 'asc' // stack order by sum of values ascendantly.
// order: null // stack order by data definition.
},
grid: {
y: {
lines: [{value:0}]
}
}
});
Also detailed explanation here too : http://c3js.org/reference.html#data-order
You can specify your function too :)