I have written the code for my chart in Jquery and I am using the chart to display data on my Django Web Page, I want to remove the inner circles which I think are called ticks along with the small numbers that are displayed with them. I have tried to use the
ticks:{ display: false, }
and
scale:{ display: false, }
but have had no luck with either I am not sure how to do it.
Code for Chart:
new Chart("chart_{{ i.pk }}_{{ t.pk }}", { type: "polarArea", data: { labels: labels_{{ t.pk }}, datasets: [{ fill: true, pointRadius: 1, {# borderColor: backgroundColors_{{ t.pk }} ,#} backgroundColor: backgroundColors_{{ t.pk }} , data: totals_{{ i.pk }}_{{ t.pk }}_arr, }] }, options: { responsive: false, maintainAspectRatio: true, plugins: { legend: { display: false, }, scale: { ticks: { display: false, }, gridLines: { display: false, lineWidth: 7, tickMarkLength: 30// Adjusts the height for the tick marks area }, }, title: { display: false, text: 'Chart.js Polar Area Chart' } } } }); {% endfor %} {% endfor %} {% endblock %}
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Answer
In v3 the radialLinear scale is not configured in the scale
object anymore but also in the scales
namespace with namespace r
for radial. Also it shouldn’t be configured in the plugins section but in the root of the the options object.
And as last the gridLines
has been renamed to grid
.
For all changes between V2 and V3 please read the migration guide
Live example:
const options = { type: 'polarArea', data: { labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"], datasets: [{ label: '# of Votes', data: [12, 19, 3, 5, 2, 3], backgroundColor: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"] }] }, options: { scales: { r: { ticks: { display: false // Remove vertical numbers }, grid: { display: false // Removes the circulair lines } } } } } const ctx = document.getElementById('chartJSContainer').getContext('2d'); new Chart(ctx, options);
<body> <canvas id="chartJSContainer" width="600" height="400"></canvas> <script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/3.7.0/chart.js"></script> </body>