Render images as labels on Y axis

Render images as labels on Y axis - javascript

I'm using chart.js to graph my data.
I'm wondering if I can show the flag image/icon PNG for the labels.
function drawChart(obj, columnName, type = 'bar', selectedVal){
var ajax = $.ajax({url: '/query/' + obj + '/'+ columnName + '/' + selectedVal });
ajax.done(function (response) {
console.log('Response from API >>',response);
$('.lds-ripple').fadeOut();
var selector = `chart-${columnName}`;
var chartHtml = `<div class="col-sm-6"><canvas class="chart" id="${selector}" height="200"></canvas></div>`;
$('.charts').append(chartHtml);
keys = [];
values = [];
var length = 0
$.each(response, function(key,val) {
//console.log(key+val);
length++;
if(length<15){
keys.push(key);
values.push(val);
}
});
var showLegend = false;
if(type == 'doughnut' || type == 'radar' || type == 'polarArea' || type == 'pie'){
showLegend = true;
}
let chart = document.getElementById(selector).getContext('2d');
let xAxisTitle = columnName;
var sumOfAllValues = values.reduce((a, b) => a + b, 0);
Chart.defaults.global.defaultFontColor = "#fff";
var ticksDisplay = true;
if(columnName == 'country'){
ticksDisplay = false;
}
const images = ['https://i.stack.imgur.com/2RAv2.png', 'https://i.stack.imgur.com/Tq5DA.png', 'https://i.stack.imgur.com/3KRtW.png', 'https://i.stack.imgur.com/iLyVi.png'];
new Chart(chart, {
type: type, // bar, horizontalBar, pie, line, doughnut, radar, polarArea
plugins: [{
afterDraw: chart => {
var ctx = chart.chart.ctx;
var xAxis = chart.scales['x-axis-0'];
var yAxis = chart.scales['y-axis-0'];
xAxis.ticks.forEach((value, index) => {
var x = xAxis.getPixelForTick(index);
var y = yAxis.getPixelForTick(index);
var image = new Image();
image.src = images[index],
ctx.drawImage(image, x - 12, yAxis.bottom + 10);
// ctx.drawImage(image, x + 12, yAxis.left - 10);
});
}
}],
data:{
labels: keys,
datasets:[{
label:'Count',
data:values,
borderWidth:2,
hoverBorderWidth:2,
hoverBorderColor:'#fff',
color:'#fff',
backgroundColor: neonBgColors,
borderColor: neonBgBorders,
defaultFontColor: 'white'
}
]
},
options:{
title:{
display:true,
fontSize: 20,
text: columnName + '(' + sumOfAllValues + ')'
},
legend:{
display:showLegend,
position:'right',
labels:{
fontColor:'#000'
}
},
scales: {
xAxes: [{
ticks: {
precision:0,
beginAtZero: true
},
scaleLabel: {
display: true,
labelString: xAxisTitle + ' (' + sumOfAllValues + ')'
}
}],
yAxes: [{
ticks: {
precision:0,
beginAtZero: true,
display: ticksDisplay,
},
scaleLabel: {
display: true,
// labelString: 'Visitor Count'
}
}]
},
layout: {
padding: {
bottom: 30
}
},
}
});
});
}
I kept getting

I adapted the code of this answer and came up with the following solution for your case.
const labels = ['Red Vans', 'Blue Vans', 'Green Vans', 'Gray Vans'];
const images = ['https://i.stack.imgur.com/2RAv2.png', 'https://i.stack.imgur.com/Tq5DA.png', 'https://i.stack.imgur.com/3KRtW.png', 'https://i.stack.imgur.com/iLyVi.png']
.map(png => {
const image = new Image();
image.src = png;
return image;
});
const values = [48, 56, 33, 44];
new Chart(document.getElementById("myChart"), {
type: "horizontalBar",
plugins: [{
afterDraw: chart => {
var ctx = chart.chart.ctx;
var xAxis = chart.scales['x-axis-0'];
var yAxis = chart.scales['y-axis-0'];
yAxis.ticks.forEach((value, index) => {
var y = yAxis.getPixelForTick(index);
ctx.drawImage(images[index], xAxis.left - 40, y - 10);
});
}
}],
data: {
labels: labels,
datasets: [{
label: 'My Dataset',
data: values,
backgroundColor: ['red', 'blue', 'green', 'lightgray']
}]
},
options: {
responsive: true,
layout: {
padding: {
left: 50
}
},
legend: {
display: false
},
scales: {
yAxes: [{
ticks: {
display: false
}
}],
xAxes: [{
ticks: {
beginAtZero: true
}
}],
}
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.3/Chart.min.js"></script>
<canvas id="myChart" height="90"></canvas>

Related

undefined labels piechart - chartjs

can you help me. i want show my data in percententage value. but my label is undefined. how i show my label to?
this my chart
var options = {
tooltips: {
custom: true
},
plugins: {
datalabels: {
display: true,
formatter: (value, ctx) => {
let datasets = ctx.chart.data.datasets;
if (datasets.indexOf(ctx.dataset) === datasets.length - 1) {
let sum = datasets[0].data.reduce((a, b) => a + b, 0);
let percentage = Math.round((value / sum) * 100) + '%';
return percentage;
} else {
return percentage;
}
},
color: '#fff',
}
}
};
var ctx = document.getElementById("pie-chart").getContext('2d');
var myChart = new Chart(ctx, {
type: 'pie',
data: {
datasets: data
},
options: options
});

Labels array is not supposed to be in the dataset itself but is supposed to be in the main data object like so:
var data = [{
data: [50, 55, 60, 33],
backgroundColor: [
"#4b77a9",
"#5f255f",
"#d21243",
"#B27200"
],
borderColor: "#fff"
}];
var options = {
plugins: {
datalabels: {
formatter: (value, ctx) => {
let sum = 0;
let dataArr = ctx.chart.data.datasets[0].data;
dataArr.map(data => {
sum += data;
});
let percentage = (value * 100 / sum).toFixed(2) + "%";
return percentage;
},
color: '#fff',
}
}
};
var ctx = document.getElementById("pie-chart").getContext('2d');
var myChart = new Chart(ctx, {
type: 'pie',
data: {
labels: ["India", "China", "US", "Canada"],
datasets: data
},
options: options
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.4/Chart.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/chartjs-plugin-datalabels#0.4.0/dist/chartjs-plugin-datalabels.min.js"></script>
<canvas id="pie-chart"></canvas>

Chart js legend are being cut off if the bar height is equal to port height - chart js

I am using chart js to display barchart as :
$(function(){
let aid;
let $radio_input;
let none_obs;
let display = true;
let $js_dom_array = ["76.44", "120.00"];
let $js_am_label_arr = ["None $0", "Terrace - Large $2000"];
if($js_am_label_arr.length > 20){
display = false;
}
let $js_backgroundColor = ["rgba(26,179,148,0.5)", "rgba(26,179,148,0.5)"];
// let $div = document.getElementById("barChart");
// $div.height="140";
let ctx2 = document.getElementById("barChart").getContext("2d");
let chart = new Chart(ctx2, {
type: 'bar',
data: {
labels: $js_am_label_arr,
datasets: [{
label: 'DOM',
data: $js_dom_array,
backgroundColor: $js_backgroundColor,
barPercentage: 0.4,
maxBarThickness: 50,
// maxBarLength: 5,
}]
},
options: {
legend: {
display: false
},
responsive: true,
maintainAspectRatio: false,
legendCallback: function(chart) {
var text = [];
for (var i=0; i<chart.data.datasets.length; i++) {
text.push(chart.data.labels[i]);
}
return text.join("");
},
tooltips: {
mode: 'index',
callbacks: {
// Use the footer callback to display the sum of the items showing in the tooltip
title: function(tooltipItem, data) {
let title_str = data['labels'][tooltipItem[0]['index']];
// let lastIndex = title_str.lastIndexOf(" ");
// return title_str.substring(0, lastIndex);
return title_str;
},
label: function(tooltipItem, data) {
return 'Avg. DOM: '+data['datasets'][0]['data'][tooltipItem['index']];
},
},
},
scales: {
xAxes: [{
stacked: false,
beginAtZero: true,
// scaleLabel: {
// labelString: 'Month'
// },
ticks: {
display: display,
min: 0,
autoSkip: false,
maxRotation: 60,
callback: function(label, index, labels) {
// let lastIndex = label.lastIndexOf(" ");
// let avg_amount = label.split(" ").pop();
// let am_name = label.substring(0, lastIndex);
// let truncated_am_name = am_name.length > 30 ? (am_name.substring(0, 30)+'...') : am_name;
// return truncated_am_name+' '+avg_amount;
return label;
}
}
}]
},
layout: {
margin: {
top: 5
}
},
},
plugins:[{
afterDatasetsDraw: function(chart,options) {
// var chartInstance = chart,
let ctx = chart.ctx;
ctx.font = Chart.defaults.global.defaultFontStyle;
ctx.fillStyle = Chart.defaults.global.textColor;
ctx.textAlign = "center";
ctx.textBaseline = "bottom";
chart.data.datasets.forEach(function (dataset, i) {
var meta = chart.controller.getDatasetMeta(i);
meta.data.forEach(function (bar, index) {
ctx.fillText(Math.round(dataset.data[index]), bar._model.x, bar._model.y); //bar._model.y - 5
});
})
}
}]
});
document.getElementById('barChart').innerHTML = chart.generateLegend();
})
<script src="https://code.jquery.com/jquery-3.5.1.min.js" integrity="sha256-9/aliU8dGd2tb6OSsuzixeV4y/faTqgFtohetphbbj0=" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/chart.js#2.9.3"></script>
<div style="height:400px;">
<canvas id="barChart" xheight="140px"></canvas>
</div>
If you need jsfiddle
Here, the value of second barchart is 120 and it is being cut off. I could pull text little down as: ctx.fillText(Math.round(dataset.data[index]), bar._model.x, bar._model.y + 5); But I don't wat the value to be overlapped with the bar. I have also tried with following options
layout: {
margin: {
top: 5
}
},
and
axisY:{
viewportMaximum: 130
},
But, none of these seems to work. Is there any way to increase the height or viewport of the chart js? It would be helpful if you could provide the js fiddle as well.

Instead of layout.margin.top, you need to define layout.padding.top as follows:
layout: {
padding: {
top: 20
}
},

Draw a horizontal bar chart from right to left

I am creating a horizontal bar chart in Chart.js as you can see in this jsfiddle.
I want to change the chart direction so that it draws from right to left. I tried dir = rtl and in CSS direction=rtl but they don't work.
This is what I want:

I can't find a native way in the documentation to do this, but you can do it via the fairly simple workaround of negating the data so that Chart.js draws negative values:
invert the values in the dataset:
data.datasets[0].data.map((currentValue, index, array) => {
array[index] = currentValue * -1;
});
right-align the y-axis:
scales: {
yAxes: [{
position: 'right'
...
reformat tooltips for display:
options = {
tooltips: {
callbacks: {
label: function(tooltipItem, data) {
var label = data.datasets[tooltipItem.datasetIndex].label || '';
if (label) {
label += ': ';
}
label += tooltipItem.xLabel * -1;
return label;
}
}
...
reformat ticks for display:
xAxes: [{
ticks: {
callback: function(value, index, values) {
return value * -1;
}
...
Here's a working example:
var data = {
labels: ["x1", "x2", "x3", "x4", "x5"],
datasets: [{
label: "Actual",
backgroundColor: 'rgba(0, 0, 255, 0.5)',
borderWidth: 1,
data: [40, 150, 50, 60, 70],
yAxisID: "bar-y-axis1"
}]
};
// invert the sign of each of the values.
data.datasets[0].data.map((currentValue, index, array) => {
array[index] = currentValue * -1;
});
var options = {
tooltips: {
callbacks: {
label: function(tooltipItem, data) {
var label = data.datasets[tooltipItem.datasetIndex].label || '';
if (label) {
label += ': ';
}
label += tooltipItem.xLabel * -1; // invert the sign for display.
return label;
}
}
},
scales: {
yAxes: [{
id: "bar-y-axis1",
categoryPercentage: 0.5,
barPercentage: 0.5,
position: 'right' // right-align axis.
}],
xAxes: [{
id: "bar-x-axis1",
stacked: false,
ticks: {
callback: function(value, index, values) {
return value * -1; // invert the sign for tick labelling.
},
beginAtZero: true
}
}]
}
};
var ctx = document.getElementById("canvas").getContext("2d");
var myBarChart = new Chart(ctx, {
type: 'horizontalBar',
data: data,
options: options
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.8.0/Chart.min.js"></script>
<canvas id="canvas"></canvas>

You can do it with this in Chart.js v4. Its same keyword in lower version:
var options = {
scales: {
x: { reverse: true },
},
}
Docs: https://www.chartjs.org/docs/latest/api/interfaces/CoreScaleOptions.html

How to add custom text inside the bar and how to reduce the step size in y axis in chart js( Bar chart )

I am trying to insert the custom text inside the bar, I have searched lot of threads still i didn't get any solution. Then i want to reduce the step size in y axis. I have attached my code.
jQuery( document ).ready(function() {
var ctx = document.getElementById('myChart');
if(ctx){
var ctxn = ctx.getContext('2d');
var myChart = new Chart(ctxn, {
type: 'bar',
data: {
labels: ['Sale Estimate'],
datasets: [{
label: 'Original Sale Estimate',
data: [4200000],
backgroundColor: '#bcbec0'
}, {
label: 'Final Sale Price',
data: [5000000],
backgroundColor: '#5a00fe'
}]
},
options: {
scales: {
yAxes: [{
ticks: {
beginAtZero: true,
stacked: true,
// Abbreviate the millions
callback: function(value, index, values) {
return '$' +value / 1e6 + 'M';
}
}
}],
xAxes: [{
// Change here
gridLines : {
display : false
},
barPercentage: 0.8,
barThickness: 84,
stacked: true
}]
}, legend: {
display: false
},
tooltips: {
callbacks: {
label: function(tooltipItems, data) {
var roundoffLabel = Math.round(tooltipItems.yLabel);
var millionAft = convertNum(roundoffLabel);
return data.datasets[tooltipItems.datasetIndex].label +': ' + '$' + millionAft;
},labelTextColor: function(tooltipItem, chart) {
return '#000';
}
},
titleSpacing: 5,
backgroundColor: '#ffffff',
titleFontColor : '#000000',
cornerRadius : 0,
xPadding : 10,
yPadding : 10,
mode: 'index'
}
}
});
}
});
My current code giving this output. I need exact design attached above. I have tried to reduce the stepsize in y-axis i am not able to find the correct solution.
Please anyone help me to fix this.

You can add labels using
afterDatasetsDraw
and change the steps using
stepSize
jQuery( document ).ready(function() {
var maxValue = 5200000;
var ctx = document.getElementById('myChart');
if(ctx){
var ctxn = ctx.getContext('2d');
var myChart = new Chart(ctxn, {
type: 'bar',
data: {
labels: ['Sale Estimate'],
datasets: [{
label: 'Original Sale Estimate',
data: [3950000],
backgroundColor: '#bcbec0'
}, {
label: 'Final Sale Price',
data: [maxValue],
backgroundColor: '#5a00fe'
}]
},
options: {
scales: {
yAxes: [{
ticks: {
beginAtZero: true,
stacked: true,
// Abbreviate the millions
callback: function(value, index, values) {
return '$ ' + value / 1e6 + 'M';
},
stepSize: 1000000, // <----- This prop sets the stepSize,
max: 6000000
}
}],
xAxes: [{
// Change here
gridLines : {
display : false
},
barPercentage: 0.8,
barThickness: 84,
stacked: true
}]
}, legend: {
display: false
},
tooltips: {
callbacks: {
label: function(tooltipItems, data) {
var roundoffLabel = Math.round(tooltipItems.yLabel);
var millionAft = parseFloat(roundoffLabel);
return data.datasets[tooltipItems.datasetIndex].label +': ' + '$' + millionAft;
},labelTextColor: function(tooltipItem, chart) {
return '#000';
}
},
titleSpacing: 5,
backgroundColor: '#ffffff',
titleFontColor : '#000000',
cornerRadius : 0,
xPadding : 10,
yPadding : 10,
mode: 'index'
}
}
});
Chart.plugins.register({
afterDatasetsDraw: function(chart, easing) {
// To only draw at the end of animation, check for easing === 1
var ctx = chart.ctx;
chart.data.datasets.forEach(function (dataset, i) {
var meta = chart.getDatasetMeta(i);
if (!meta.hidden) {
meta.data.forEach(function(element, index) {
if (dataset.data[index] == 5000000) return;
// Draw the text in white, with the specified font
ctx.fillStyle = 'rgb(255, 255, 255)';
var fontSize = 16;
var fontStyle = 'bold';
var fontFamily = 'Arial';
ctx.font = Chart.helpers.fontString(fontSize, fontStyle, fontFamily);
// Just naively convert to string for now
var dataString = dataset.data[index].toString();
// Make sure alignment settings are correct
ctx.textAlign = 'center';
ctx.textBaseline = 'text-top';
var padding = 30;
var position = element.tooltipPosition();
ctx.fillText((maxValue - dataset.data[index])/1000000, position.x, position.y - (fontSize / 2) - padding);
//ctx.fillText(dataset.data[index], position.x, position.y - (fontSize / 2) - padding);
padding = 12;
fontStyle = 'normal';
ctx.font = Chart.helpers.fontString(fontSize, fontStyle, fontFamily);
ctx.fillText("million", position.x, position.y - (fontSize / 2) - padding);
});
}
});
}
});
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.8.0/Chart.min.js" type="text/javascript"></script>
<canvas id="myChart"></canvas>

Horizontal stacked angular bar charts

I am trying to implement an Angular horizontal stacked bar chart- Something like this example.
However, I want just one bar that is stacked.
I am working with AngularJS and Chart.js. I have the example showing on the page.
In the PieController, ChartData contains:
{"data":["63","38"],"labels":["Ford","GM"]}
In the example, instead of the label on the outside, I would like the label and then the number to be inside the chart. Like [=====Ford 63====|===GM 38===] the equals represent bar colors. There will be more data points than the current two.
Here is my page
<div ng-controller="PieController">
data {{ChartData}} //testing purposes
<div ng-init="getBarChart()">
<canvas id="Chart1"></canvas>
</div>
Here is my JavaScript controller
app.controller('PieController', function($scope, ChartService) {
$scope.getBarChart = function(){
ChartService.get({name: 'main'}, function(data) {
$scope.ChartData = data;
var barOptions_stacked = {
tooltips: {
enabled: false
},
hover: {
animationDuration: 0
},
scales: {
xAxes: [{
ticks: {
beginAtZero: true,
fontFamily: "'Open Sans Bold', sans-serif",
fontSize: 11
},
scaleLabel: {
display: false
},
gridLines: {},
stacked: true
}],
yAxes: [{
gridLines: {
display: false,
color: "#fff",
zeroLineColor: "#fff",
zeroLineWidth: 0
},
ticks: {
fontFamily: "'Open Sans Bold', sans-serif",
fontSize: 11
},
stacked: true
}]
},
legend: {
display: false
},
animation: {
onComplete: function () {
var chartInstance = this.chart;
var ctx = chartInstance.ctx;
ctx.textAlign = "left";
ctx.font = "9px Open Sans";
ctx.fillStyle = "#fff";
Chart.helpers.each(this.data.datasets.forEach(function (dataset, i) {
var meta = chartInstance.controller.getDatasetMeta(i);
Chart.helpers.each(meta.data.forEach(function (bar, index) {
data = dataset.data[index];
if (i == 0) {
ctx.fillText(data, 50, bar._model.y + 4);
} else {
ctx.fillText(data, bar._model.x - 25, bar._model.y + 4);
}
}), this)
}), this);
}
},
pointLabelFontFamily: "Quadon Extra Bold",
scaleFontFamily: "Quadon Extra Bold",
};
var ctx = document.getElementById("Chart1");
var myChart = new Chart(ctx, {
type: 'horizontalBar',
data: {
labels: ["2014", "2013", "2012", "2011"],
datasets: [{
data: [727, 589, 537, 543, 574],
backgroundColor: "rgba(63,103,126,1)",
hoverBackgroundColor: "rgba(50,90,100,1)"
}, {
data: [238, 553, 746, 884, 903],
backgroundColor: "rgba(163,103,126,1)",
hoverBackgroundColor: "rgba(140,85,100,1)"
}, {
data: [1238, 553, 746, 884, 903],
backgroundColor: "rgba(63,203,226,1)",
hoverBackgroundColor: "rgba(46,185,235,1)"
}]
},
options: barOptions_stacked,
})
});//end chat service.get
}
});
Instead of hard coding in the dataset which is what its doing now, is there a way I can use the data "ChartData" that I outlined in the beginning of the post?
I'm not sure how to do it or if its even possible.

In order to get the label to show in the bar, reference the labels property of $scope.ChartData:
ctx.fillText($scope.ChartData.labels[index] +" "+ data, 50, bar._model.y + 4);
Instead of hard coding in the dataset which is what its doing now, is there a way I can use the data "ChartData" that I outlined in the beginning of the post?
Use properties from the data variable (supplied by the ChartService get function) i.e. data.labels and data.data instead of the hard-coded values.
So update the labels line from:
labels: ["2014", "2013", "2012", "2011"],
To this:
labels: data.labels,
And similarly for the datasets:
datasets: [{
data: data.data,
So when creating the Chart it should look like this:
var myChart = new Chart(ctx, {
type: 'horizontalBar',
data: {
labels: data.labels,
datasets: [{
data: data.data,
backgroundColor: "rgba(63,103,126,1)",
hoverBackgroundColor: "rgba(50,90,100,1)"
}]
},
options: barOptions_stacked,
});
Expand the code snippet below for a demonstration.
Note: there is currently an issue with the resize-listener, blocked by a CORS issue - I am trying to find a way to disable that.
Update:
Per your comment about stacking the bars (horizontally) - yes that is possible. Just have one element in the datasets array for each item. One simple way to have this is to use Array.map() to create an array similar to the example:
var bgColors = [
"rgba(63,103,126,1)",
"rgba(50,90,100,1)"
];
var hoverBgColors = [
"rgba(50,90,100,1)",
"rgba(140,85,100,1)"
];
var datasets = data.data.map(function(value, index) {
return {
data: [value],
backgroundColor: bgColors[index],
hoverBackgroundColor: hoverBgColors[index]
}
});
Then use variable datasets when creating the Chart object:
var myChart = new Chart(ctx, {
type: 'horizontalBar',
data: {
labels: data.labels,
datasets: datasets
},
options: barOptions_stacked,
});
Also, there is some weird math going on for the location of the second label but the helper function can be updated like below (I tried dividing the x value by 75 but that may need to be adjusted - I am not sure what "appropriate" values are for that ...):
if (i == 0) {
ctx.fillText($scope.ChartData.labels[i] + " " + data, 50, bar._model.y + 4);
} else {
ctx.fillText($scope.ChartData.labels[i] + " " + data, (bar._model.x - 25) / 75, bar._model.y + 4);
}
var app = angular.module('myApp', []);
app.factory('ChartService', function() {
return { //dummy chart service
get: function(obj, callback) {
var data = {
"data": ["63", "38"],
"labels": ["Ford", "GM"]
};
callback(data);
}
};
});
app.controller('PieController', function($scope, ChartService) {
$scope.getBarChart = function() {
ChartService.get({
name: 'main'
}, function(data) {
$scope.ChartData = data;
var barOptions_stacked = {
tooltips: {
enabled: false
},
hover: {
animationDuration: 0
},
scales: {
xAxes: [{
ticks: {
beginAtZero: true,
fontFamily: "'Open Sans Bold', sans-serif",
fontSize: 11
},
scaleLabel: {
display: false
},
gridLines: {},
stacked: true
}],
yAxes: [{
gridLines: {
display: false,
color: "#fff",
zeroLineColor: "#fff",
zeroLineWidth: 0
},
ticks: {
fontFamily: "'Open Sans Bold', sans-serif",
fontSize: 11
},
stacked: true
}]
},
legend: {
display: false
},
animation: {
onComplete: function() {
var chartInstance = this.chart;
var ctx = chartInstance.ctx;
ctx.textAlign = "left";
ctx.font = "9px Open Sans";
ctx.fillStyle = "#fff";
Chart.helpers.each(this.data.datasets.forEach(function(dataset, i) {
var meta = chartInstance.controller.getDatasetMeta(i);
Chart.helpers.each(meta.data.forEach(function(bar, index) {
data = dataset.data[index];
if (i == 0) {
ctx.fillText($scope.ChartData.labels[i] + " " + data, 50, bar._model.y + 4);
} else {
ctx.fillText($scope.ChartData.labels[i] + " " + data, (bar._model.x - 25) / 75, bar._model.y + 4);
}
}), this)
}), this);
}
},
pointLabelFontFamily: "Quadon Extra Bold",
scaleFontFamily: "Quadon Extra Bold",
};
var ctx = document.getElementById("Chart1");
var bgColors = [
"rgba(63,103,126,1)",
"rgba(50,90,100,1)"
];
var hoverBgColors = [
"rgba(50,90,100,1)",
"rgba(140,85,100,1)"
];
var datasets = data.data.map(function(value, index) {
return {
data: [value],
backgroundColor: bgColors[index],
hoverBackgroundColor: hoverBgColors[index]
}
});
var myChart = new Chart(ctx, {
type: 'horizontalBar',
data: {
//use empty labels because the labels are on the bars
labels: data.labels.map(function() {
return '';
}),
datasets: datasets
},
options: barOptions_stacked,
})
}); //end chat service.get
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.1.3/Chart.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp" ng-controller="PieController">
data {{ChartData}} //testing purposes
<div ng-init="getBarChart()">
<canvas id="Chart1"></canvas>

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