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本教程說(shuō)明了如何使用多個(gè)AreaSeries創(chuàng)建簡(jiǎn)單的2D圖表。
AreaSeries可以看作是連接分配給它的所有數(shù)據(jù)點(diǎn)并為該線(xiàn)和軸之間的區(qū)域著色的線(xiàn)。

從不同數(shù)據(jù)的可視化比較到隨時(shí)間變化的趨勢(shì)/模式的可視化，可以通過(guò)多種方式使用AreaSeries。

本教程假定您已在WinForms或WPF應(yīng)用程序上使用LightningChart創(chuàng)建了新圖表。如果沒(méi)有，請(qǐng)按照我們的簡(jiǎn)單2D圖表創(chuàng)建應(yīng)用程序。

1.創(chuàng)建一個(gè)新的AreaSeries并為創(chuàng)建的系列添加樣式。

// Create a new AreaSeries.
var areaSeries1 = new AreaSeries(chart.ViewXY, axisX, axisY);

// Add styling for created series.
areaSeries1.Fill.Color = Color.FromRgb(176, 196, 222); // LightSteelBlue.
areaSeries1.LineStyle.Color = Color.FromRgb(0, 0, 0); // Black.
areaSeries1.Fill.GradientFill = GradientFill.Solid;

// Define AreaSeriesPoints.
AreaSeriesPoint[] points1 = new AreaSeriesPoint[]{
    new AreaSeriesPoint(0, 10),
    new AreaSeriesPoint(1, 8),
    new AreaSeriesPoint(2, 9),
    new AreaSeriesPoint(3, 8),
    new AreaSeriesPoint(4, 7),
    new AreaSeriesPoint(5, 8),
    new AreaSeriesPoint(6, 7),
    new AreaSeriesPoint(7, 9),
    new AreaSeriesPoint(9, 8),
    new AreaSeriesPoint(10, 9)
};

// Add points to series.
areaSeries1.AddValues(points1);

// Add AreaSeries to chart.
chart.ViewXY.AreaSeries.Add(areaSeries1);

// Create 2 new AreaSeries.
var areaSeries2 = new AreaSeries(chart.ViewXY, axisX, axisY);
var areaSeries3 = new AreaSeries(chart.ViewXY, axisX, axisY);

// Add styling for created series.
areaSeries2.Fill.Color = Color.FromRgb(250, 250, 210); // LightGoldenrodYellow.
areaSeries2.LineStyle.Color = Color.FromRgb(0, 0, 0); // Black.
areaSeries2.Fill.GradientFill = GradientFill.Solid;

areaSeries3.Fill.Color = Color.FromRgb(255, 140, 0); // DarkOrange.
areaSeries3.LineStyle.Color = Color.FromRgb(0, 0, 0); // Black. 
areaSeries3.Fill.GradientFill = GradientFill.Solid;

// Define AreaSeriesPoints for both new AreaSeries.
AreaSeriesPoint[] points2 = new AreaSeriesPoint[]{
    new AreaSeriesPoint(0, 5),
    new AreaSeriesPoint(1, 7),
    new AreaSeriesPoint(3, 5),
    new AreaSeriesPoint(4, 6),
    new AreaSeriesPoint(5, 3),
    new AreaSeriesPoint(6, 5),
    new AreaSeriesPoint(7, 6),
    new AreaSeriesPoint(8, 7),
    new AreaSeriesPoint(9, 5),
    new AreaSeriesPoint(10, 4)
};

AreaSeriesPoint[] points3 = new AreaSeriesPoint[]{
    new AreaSeriesPoint(0, 1),
    new AreaSeriesPoint(1, 3),
    new AreaSeriesPoint(3, 1),
    new AreaSeriesPoint(4, 3),
    new AreaSeriesPoint(5, 2),
    new AreaSeriesPoint(6, 3),
    new AreaSeriesPoint(7, 2),
    new AreaSeriesPoint(8, 4),
    new AreaSeriesPoint(9, 1),
    new AreaSeriesPoint(10, 2)
};

// Add points to series.
areaSeries2.AddValues(points2);
areaSeries3.AddValues(points3);

 // Add AreaSeries to chart.
view.AreaSeries.Add(areaSeries2);
view.AreaSeries.Add(areaSeries3);

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