// A plugin that hides slices, given their indices, across all datasets.
var hideSlicesPlugin = {
afterInit: function(chartInstance) {
// If `hiddenSlices` has been set.
if (chartInstance.config.data.hiddenSlices !== undefined) {
// Iterate all datasets.
for (var i = 0; i < chartInstance.data.datasets.length; ++i) {
// Iterate all indices of slices to be hidden.
chartInstance.config.data.hiddenSlices.forEach(function(index) {
// Hide this slice for this dataset.
chartInstance.getDatasetMeta(i).data[index].hidden = true;
});
}
chartInstance.update();
}
}
};
Chart.pluginService.register(hideSlicesPlugin);
var ctx = document.getElementById("myChart");
var myChart = new Chart(ctx, {
type: 'pie',
data: {
labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
data: [15, 1, 1, 1, 45, 1],
backgroundColor: [
'rgba(255, 99, 132, 0.2)',
'rgba(54, 162, 235, 0.2)',
'rgba(255, 206, 86, 0.2)',
'rgba(75, 192, 192, 0.2)',
'rgba(153, 102, 255, 0.2)',
'rgba(255, 159, 64, 0.2)'
],
borderColor: [
'rgba(255,99,132,1)',
'rgba(54, 162, 235, 1)',
'rgba(255, 206, 86, 1)',
'rgba(75, 192, 192, 1)',
'rgba(153, 102, 255, 1)',
'rgba(255, 159, 64, 1)'
],
borderWidth: 1
}, {
data: [5, 1, 25, 10, 5, 1],
backgroundColor: [
'rgba(255, 99, 132, 0.2)',
'rgba(54, 162, 235, 0.2)',
'rgba(255, 206, 86, 0.2)',
'rgba(75, 192, 192, 0.2)',
'rgba(153, 102, 255, 0.2)',
'rgba(255, 159, 64, 0.2)'
],
borderColor: [
'rgba(255,99,132,1)',
'rgba(54, 162, 235, 1)',
'rgba(255, 206, 86, 1)',
'rgba(75, 192, 192, 1)',
'rgba(153, 102, 255, 1)',
'rgba(255, 159, 64, 1)'
],
borderWidth: 1
}],
// Hide the second (index = 1) and the fourth (index = 3) slice.
hiddenSlices: [1, 3]
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.4.0/Chart.min.js"></script>
<canvas id="myChart" width="400" height="400"></canvas>
完璧に動作します、ありがとうございます! – Lavandysh