Hello I am using the following unixtimestamp format for the x axis and it renders some random numbers instead of treating them as dates. What is the correct format? please see attached screenshot.
export const dateValues: number[] = [
1546300800000,
1546304400000,
1546308000000,
1546311600000,
1546315200000,
1546318800000,
1546322400000,
1546326000000,
1546329600000,
1546333200000,
1546336800000,
1546340400000,
1546344000000,
1546347600000,
1546351200000,
1546354800000,
1546358400000,
1546362000000,
1546365600000,
1546369200000,
1546372800000,
1546376400000, ]
Here’s the code for creating the chart
// Create a SciChartSurface
const { sciChartSurface, wasmContext } = await SciChartSurface.create(
"scichart-root"
);
sciChartSurface.xAxes.add(
new CategoryAxis(wasmContext, {
labelProvider: new SmartDateLabelProvider(),
defaultXStep: 1546304400000 - 1546300800000,
//growBy: new NumberRange(0.05, 0.05),
drawMajorGridLines: true,
drawMinorGridLines: true,
axisAlignment: EAxisAlignment.Bottom,
autoRange: EAutoRange.Once,
drawMajorBands: false,
})
);
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- mason jackson asked 2 years ago
- last edited 2 years ago
Hi mason, how are you setting textformatting on the xaxis? What xaxis type are you using? Please share code how you’ve created the axis.
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// Create a SciChartSurface
const { sciChartSurface, wasmContext } = await SciChartSurface.create(
"scichart-root"
);
// Add an XAxis of type CategoryAxis - which collapses gaps in stock market data
// SmartLabelProvider returns useful labels for stock market data
sciChartSurface.xAxes.add(
new CategoryAxis(wasmContext, {
labelProvider: new SmartDateLabelProvider(),
defaultXStep: 1546304400000 - 1546300800000,
//growBy: new NumberRange(0.05, 0.05),
drawMajorGridLines: true,
drawMinorGridLines: true,
axisAlignment: EAxisAlignment.Bottom,
autoRange: EAutoRange.Once,
drawMajorBands: false,
})
);
- mason jackson answered 2 years ago
- Hi Mason, I saw this, and edited your question to include the code. No need to post it again. Our team is working on this – so far they can’t reproduce (works here). I’ve asked the team to provide you with a working code sample that you can try out and modify to recreate the problem. best regards, Andrew
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Hello,
note that data series expect the xValues to be defined in Unix Timestamp format (number of seconds since 01/01/1970).
The data that you have provided seems to be defined in milliseconds.
So please check out this example, which should do just what you expect: https://codesandbox.io/s/practical-chandrasekhar-6uz5cf?file=/src/index.ts
Regards, Jim
- Jim Risen answered 2 years ago
- That’s a good point. What’s the desired outcome Mason? Are you trying to format from milliseconds to a time stamp? This could be possible with NumericAxis and a custom LabelProvider
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