Apr 15, 2025 · const DATA_COUNT = 12; const labels = []; for (let i = 0; i < DATA_COUNT; ++i) { labels.push (i.toString ()); } const datapoints = [0, 20, 20, 60, 60, 120, NaN, 180, 120, 125, …

Aug 7, 2021 · function interpolate (a, b, frac) { return { y: a.y+ (b.y-a.y)*frac, x: a.x+ (b.x-a.x)*frac }; }

A Cardinal spline (Cubic Hermite spline interpolation, Catmull-Rom with a tension option) implementation for JavaScript/HTML5 which creates an interpolated smooth curve through …

Aug 1, 2023 · Chart.js doesn't have an API for interpolation, interpolation is only done internally to draw lines through points. On the other hand, you can typically get any kind of data from the …

Apr 15, 2025 · Line Chart A line chart is a way of plotting data points on a line. Often, it is used to show trend data, or the comparison of two data sets.

Nov 17, 2016 · If the points are linear, then it must be the way chart.js is rendering. First, right above var scatterChart add a line console.log(data); and add that output to your question so …

Apr 15, 2025 · const actions = [ { name: 'Step: false (default)', handler: (chart) => { chart.data.datasets.forEach (dataset => { dataset.stepped = false; }); chart.update (); } }, { …

Nov 12, 2014 · In other words, if you use your array of x-values as the scale's domain, and your array of y-values as the range, then you can input any x value and the scale will return the …

Mar 8, 2022 · My Question - Is there a way to ask charts.js to automatically derive the y values? either through config or the data points themselves, something like: {x: 1, y: 1}, {x: 3, y: 1}, {x: …

The interpolate function does linear interpoltion to find the y value for the x coordinate of the line between those points. This example uses a CursorModifier, but the same principle would …