What methods work effectively for adjusting the nvd3 x domain range to accommodate fluctuating time intervals?

What is the most efficient method for setting the x domain of an nvd3 chart to display a specific time period, such as the last hour, in a real-time line chart? Essentially, I need to continuously add new data points (y values with corresponding timestamps) every second while ensuring that the x axis only displays the past hour. Currently, I am updating the forceX property with each new data point, but this approach seems inefficient.

var startDate = (new Date()).getTime();
startDate = startDate-3600000;
options.chart.forceX = [startDate,new Date()];
data[0].values.push({x: new Date(), y: newValue});
api.update();

Is there a more effective way to achieve this?

javascriptd3.jsnvd3.jsangular-nvd3

Answer №1

To dynamically update the axis in D3 JS, you can utilize code similar to the following snippet:

// Update scale with new values
var updatedXScale = d3.time.scale().domain([newMinDate, newMaxDate])
    .range([0, width]);

// Update the Axis with the new scale
var updatedXAxis = d3.svg.axis().scale(updatedXScale).orient("bottom");

// Select the svg axis node and apply the updates
svg.selectAll("g.x-axis").call(updatedXAxis)

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