ChartDataPointCollection class

ChartDataPointCollection class

Represents collection of a ChartDataPoint. To learn more, visit the Working with Charts documentation article.

Properties

Name	Description
count	Returns the number of ChartDataPoint in this collection.
this[]

Methods

Name	Description
clearFormat()	Clears format of all ChartDataPoint in this collection.
copyFormat(sourceIndex, destinationIndex)	Copies format from the source data point to the destination data point.
hasDefaultFormat(dataPointIndex)	Gets a flag indicating whether the data point at the specified index has default format.

Examples

Shows how to work with data points on a line chart.

test('ChartDataPoint', () => {
  let doc = new aw.Document();
  let builder = new aw.DocumentBuilder(doc);

  let shape = builder.insertChart(aw.Drawing.Charts.ChartType.Line, 500, 350);
  let chart = shape.chart;

  expect(chart.series.count).toEqual(3);
  expect(chart.series.at(0).name).toEqual("Series 1");
  expect(chart.series.at(1).name).toEqual("Series 2");
  expect(chart.series.at(2).name).toEqual("Series 3");

  // Emphasize the chart's data points by making them appear as diamond shapes.
  for (let series of chart.series)
    applyDataPoints(series, 4, aw.Drawing.Charts.MarkerSymbol.Diamond, 15);

  // Smooth out the line that represents the first data series.
  chart.series.at(0).smooth = true;

  // Verify that data points for the first series will not invert their colors if the value is negative.
  for (let p of chart.series.at(0).dataPoints)
  {
    expect(p.invertIfNegative).toEqual(false);
  }

  let dataPoint = chart.series.at(1).dataPoints.at(2);
  dataPoint.format.fill.color = "#FF0000";

  // For a cleaner looking graph, we can clear format individually.
  dataPoint.clearFormat();

  // We can also strip an entire series of data points at once.
  chart.series.at(2).dataPoints.clearFormat();

  doc.save(base.artifactsDir + "Charts.ChartDataPoint.docx");
});

See Also

• module Aspose.Words.Drawing.Charts