I have this radar chart in chart.js which has 5 labels. The labels are quite long so I want to show them in two lines in HTML but when I use "\n" it doesn't make a new line!
These are my labels:
labels: ["COMMUNICATION \n SKILL ", "PRODUCT AND PROCESS \n KNOWLEDGE "]
As you can see I'm trying to have "communication skill" and "product and process knowledge" both in two lines but it shows them in one line!
What's the correct way to do it?
UPDATE
The labels is in script tag:
var myChart = new Chart(ctx, {
type: 'radar',
data: {
labels: ["COMMUNICATION SKILL ", "PRODUCT AND PROCESS KNOWLEDGE "],
datasets: [{
label: labs,
data: dps,
backgroundColor: [
'rgba(255, 99, 132, 0.2)'
],
borderColor: [
'rgba(255,99,132,1)',
],
borderWidth: 1
},
options: {
maintainAspectRatio: true,
scale: {
ticks:{
beginAtZero: true,
max: 4
}
}
}
});
I believe what you are looking for is answered here:
ChartJS New Lines '\n' in X axis Labels or Displaying More Information Around Chart or Tooltip with ChartJS V2
The solution is to pass a nested array as an input to 'labels' - with each element in the nested array representing a new line of text in your label. So in your case the following should work:
labels: [["COMMUNICATION","SKILL"], ["PRODUCT AND PROCESS","KNOWLEDGE"]]
Just read the docs https://www.chartjs.org/docs/latest/charts/radar.html
you need your dataset to have the property data and that should be an array. The values in the array will correspond with the values in the labels by their index number.
data: {
labels: ['Running', 'Swimming', 'Eating', 'Cycling'],
datasets: [{
data: [20, 10, 4, 2]
}]
}
Related
I'm trying to render a heatmap graphic but not all of yAxis are displayed in the chart, even putting turboThreshold to 0
My jsfiddle example:
http://jsfiddle.net/camilo17/zk70smv8/
My series array
series: [{
name: 'Trafico por horas',
borderWidth: 1,
data: [ ... ],
turboThreshold: 0,
}]
At the end of categories there is a "68" I don't know what does it means.
The simplest solution - set step label's property to 1.
labels: {
step: 1
}
Demo: http://jsfiddle.net/BlackLabel/d5u09xnt/
I have a pie chart using chart.js 2.0. (jsfiddle)
var ctx = document.getElementById("myChart").getContext('2d');
var myChart = new Chart(ctx, {
type: 'pie',
data: {
labels: ["Green", "Blue", "Gray", "Purple", "Yellow", "Red", "Black"],
datasets: [{
backgroundColor: [
"#2ecc71",
"#3498db",
"#95a5a6",
"#9b59b6",
"#f1c40f",
"#e74c3c",
"#34495e"
],
data: [12, 19, 3, 17, 28, 24, 7],
}]
},
options: {
legend: {
display: true,
position: 'top'
}
}
});
I wanna to determine the best way to place legend's labels on top-left position and each label will be on a new line:
What is the simplest way to do this? Is it possible to do this out of the box?
After reading the documentation, I found generatelabels function which generates a legend that we can use and assign to an DOM element and stylize and etc... But it seems to me that this is a difficult way and I believe that there is easier.
This is a hack but a satisfactory and dirt-cheap one, until better support is provided officially. Just append a long string of spaces eg. " " to the end of each label string.
This should successfully force the labels to be formatted one-per-line. Ideally this should be used with align: 'start' (v2.9+)
I've been working with ChartJS for the last couple of weeks and I'm getting used to it, however, I'm trying to add individual labels to my bars in my barchart and I can't figure it out.
Below is the code I'm using.
var config = {
type : 'bar',
data : {
datasets : [ {
label: numberOfFailures, //This line is the problem
data : failureData,
backgroundColor : colours,
} ],
labels : labels
},
options : {
responsive : true,
legend : {
position : 'bottom'
}
}
};
If I change the word label to labels they don't show up at all, but when it says label they all show up together. What I want is for array element 1 to appear on bar 1, etc.
If your aim is to take the values from an array and have them appear along the bottom of the bar chart so that each array value is the label for a bar then you need to set the data.labels value, not the data.datasets.label value.
For example, this basic chart is taken from the Chart.js documentation for bar chart data structure and shows how to use an array of month names to label the bars. Notice that the label bars go into the data.labels node.
var data = {
labels: ["January", "February", "March", "April", "May", "June", "July"],
datasets: [
{
label: "My First dataset",
backgroundColor: "rgba(255,99,132,0.2)",
borderColor: "rgba(255,99,132,1)",
borderWidth: 1,
hoverBackgroundColor: "rgba(255,99,132,0.4)",
hoverBorderColor: "rgba(255,99,132,1)",
data: [65, 59, 80, 81, 56, 55, 40],
}
]
};
If you programmatically create an array with one label for each point of data then it might look something like this:
var chartConfig = {};
for (score = 0; score < maxScore; ++score) {
chartConfig.scoreLabels[score] = score;
chartConfig.scoreData[score] = howManyAchievedScore(score);
}
var data = {
labels: chartConfig.scoreLabels,
datasets: [
{
label: "Number of players who achieved score",
backgroundColor: "rgba(255,99,132,0.2)",
borderColor: "rgba(255,99,132,1)",
borderWidth: 1,
hoverBackgroundColor: "rgba(255,99,132,0.4)",
hoverBorderColor: "rgba(255,99,132,1)",
data: chartConfig.scoreData,
}
]
};
You don't have to create the labels and data values inside a single object, but it's usually tidier if you can group your chart configuration data into one object so that you can pass it from one function to another with one parameter.
The data.datasets.label value does something different, providing text which appears in the chart legend and in tooltips which appear when you hover over a bar.
Is it possible to create a donut chart with multiple rings using ChartJS as shown below?
You can find out the solution at fiddle link
var ctx = document.getElementById("chart-area").getContext("2d");
var myDoughnut = new Chart(ctx, config);
var config = {
type: 'doughnut',
data: {
datasets: [{
data: [
10,20,30
],
backgroundColor: [
"#F7464A",
"#46BFBD",
"#FDB45C"
],
}, {
data: [
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor()
],
backgroundColor: [
"#F7464A",
"#46BFBD",
"#FDB45C"
],
}],
labels: [
"Red",
"Green",
"Yellow"
]
},
options: {
responsive: true
}
};
You need to add multiple datasets into chart. they will be displayed as you need. Please look into their own sample of pie chart. You can download and open it locally as example. There they have multiple datasets, that makes chart look like you need.
Hope that it helped.
I know it was old question, but have stuck yesterday into same, so far best that i have touch is Chart js and this is a plugin who does exactly that (and even more!)
I have a Tornado chart like the one below:
This chart has a baseline at 29.5, and it's fiddle is here.
series:[{
name: 'Low',
grouping:false,
type:'bar',
data:[
{y:12.15-baseValue, label:10},
{y:15.45-baseValue, label:1},
{y:31.25-baseValue, label:2},
{y:12.15-baseValue, color:'#99CCFF', label: ""},
],
labels:[10,5,1,2,]
},{
name: 'High',
grouping:false,
type:'bar',
data:[
{y:46.86-baseValue, label:30},
{y:42.28-baseValue, label:3},
{y:27.77-baseValue, label:4},
{y:46.86-baseValue, color:'#99CCFF', label:""},
],
labels:[30,10,3,4,]
},
{
name: 'Median',
type: 'scatter',
data: [
null,
null,
null,
27-baseValue
],
marker: {
lineWidth: 2,
lineColor: Highcharts.getOptions().colors[3],
fillColor: 'white'
}
}]
I am trying to add a shadow chart of a second Tornado, where the baseline can be different. For instance, consider four more bars, shifted to the right, in the mockup shown below:
I have been stuck at this because the shadow bars only show relative to the baseValue of the first chart (29.5), and not to the baseValue of the second chart (39.5). So if I try to add them into the existing series, they will work only if the values are in the same direction (as in value-baseValue has the same sign as the original data).
To illustrate, suppose the shadow chart has the following data:
Annual Revenue: 25, 39.5, 55
Number of Years: 33, 39.5, 48
Annual Costs: 35, 39.5, 48
Combined Uncertainty: 23,43,55
How do I add this to the code in the fiddle above and make it look like the mockup? Here is a modified fiddle that does not work.
series:[{
name: 'Low',
grouping:false,
type:'bar',
data:[
{y:12.15-baseValue, label:10},
{y:25-baseValue, label:50},
{y:15.45-baseValue, label:1},
{y:33-baseValue, label:20},
{y:31.25-baseValue, label:2},
{y:48-baseValue, label:8},
{y:12.15-baseValue, color:'#99CCFF', label: ""},
{y:40-baseValue, color:'#99DDDD', label: ""}
],
labels:[10,50,1,20,2,8]
},{
name: 'High',
grouping:false,
type:'bar',
data:[
{y:46.86-baseValue, label:30},
{y:55-baseValue, label:70},
{y:42.28-baseValue, label:3},
{y:48-baseValue, label:30},
{y:27.77-baseValue, label:4},
{y:35-baseValue, label:5},
{y:46.86-baseValue, color:'#99CCFF', label:""},
{y:80-baseValue, color:'#99DDDD', label: ""}
],
labels:[30,70,3,30,4,5,]
},
{
name: 'Median',
type: 'scatter',
data: [
null,
null,
null,
null,
null,
null,
27-baseValue,
60-baseValue
],
marker: {
lineWidth: 2,
lineColor: Highcharts.getOptions().colors[3],
fillColor: 'white'
}
}]
The problems are annotated in the image below:
If you want to have point with 0/origin in different position that rest of series - then instead you should use different series and add hidden another horizontal axis (in your code it will be y-axis because of invert caused by bar charts).
To synchronize those axes you can set proper max and min on axes.
Example: http://jsfiddle.net/frgo4Lun/3/
OR
You can use threshold http://api.highcharts.com/highcharts#plotOptions.bar.threshold.
Example: http://jsfiddle.net/frgo4Lun/4/
You have also posted image with series on between of ticks. You can set x position of point to not round values like 1.5.
Example: http://jsfiddle.net/frgo4Lun/5/