1๐
I guess you have to create your own color image (Solid color with white strip on top) and pass it in as a canvas image.
Below is a modified example Iโve made based on the sample given from the chart.js documentation and a random picture found on the net.
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.0.0/Chart.js"></script>
<canvas id="myChart" width="400" height="400"></canvas>
<script>
var img = new Image();
img.src = 'http://www.worktop-express.co.uk/media/gbu0/metro-tiles-white-sparkle-worktops-100717.jpg';
img.onload = function() {
var ctx = document.getElementById("myChart").getContext('2d');
var fillPattern = ctx.createPattern(img, 'repeat');
var myChart = new Chart(ctx, {
type: 'pie',
data: {
labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
label: '# of Votes',
data: [12, 19, 3, 5, 2, 3],
backgroundColor: [
'rgba(255, 99, 132, 10)',
'rgba(54, 162, 235, 0.2)',
'rgba(255, 206, 86, 0.2)',
'rgba(75, 192, 192, 0.2)',
'rgba(153, 102, 255, 0.2)',
fillPattern
],
borderColor: [
'rgba(0,0,0,100)',
'rgba(0,0,0,100)',
'rgba(0,0,0,100)',
'rgba(0,0,0,100)',
'rgba(0,0,0,100)',
'rgba(0,0,0,100)'
],
borderWidth: 0
}]
},
options: {
scales: {
yAxes: [{
ticks: {
beginAtZero:true
}
}]
}
}
});
}
</script>
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0๐
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.0.0/Chart.js"></script>
<canvas id="myChart" width="400" height="400"></canvas>
<script>
var img = new Image();
img.src = 'http://www.worktop-express.co.uk/media/gbu0/metro-tiles-white-sparkle-worktops-100717.jpg';
img.onload = function() {
var ctx = document.getElementById("myChart").getContext('2d');
var fillPattern = ctx.createPattern(img, 'repeat');
var myChart = new Chart(ctx, {
type: 'pie',
data: {
labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
label: '# of Votes',
data: [12, 19, 3, 5, 2, 3],
backgroundColor: [
'rgba(255, 99, 132, 10)',
'rgba(54, 162, 235, 0.2)',
'rgba(255, 206, 86, 0.2)',
'rgba(75, 192, 192, 0.2)',
'rgba(153, 102, 255, 0.2)',
fillPattern
],
borderColor: [
'rgba(0,0,0,100)',
'rgba(0,0,0,100)',
'rgba(0,0,0,100)',
'rgba(0,0,0,100)',
'rgba(0,0,0,100)',
'rgba(0,0,0,100)'
],
borderWidth: 1
}]
},
options: {
scales: {
yAxes: [{
ticks: {
beginAtZero:true
}
}]
}
}
});
}
</script>
Source:stackexchange.com