ZedGraph 横向的状柱状图 (Histogram Bar)

最新推荐文章于 2020-02-25 12:51:23 发布

wangyuelin_1982

最新推荐文章于 2020-02-25 12:51:23 发布

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分类专栏： ZedGraph 文章标签： performance null random graph each

本文链接：https://blog.youkuaiyun.com/wangyuelin_1982/article/details/2457446

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本文介绍了一种使用特定库绘制水平条形图的方法。通过设置图表属性和填充数据，展示了如何创建带有不同颜色梯度的条形图，并设置了X轴为序数类型，最后实现了条形的水平显示。

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　private void OnRenderGraph(ZedGraphWeb zgw, Graphics g, MasterPane masterPane)
    {
        // Get the GraphPane so we can work with it
        GraphPane myPane = masterPane[0];

        // Set the title and axis labels
        myPane.Title.Text = "Horizontal Bar Graph";
        myPane.XAxis.Title.Text = "Performance Factor";
        myPane.YAxis.Title.Text = "Grouping";

        // Enter some random data values
        double[] y = { 100, 100, 75, 22, 98, 40, 10 };
        double[] y2 = { 90, 100, 95, 35, 80, 35, 35 };
        double[] y3 = { 80, 100, 65, 15, 54, 67, 18 };

        // Generate a bar with "Curve 1" in the legend
        BarItem myCurve = myPane.AddBar("Curve 1", y, null, Color.Red);
        // Fill the bar with a red-white-red gradient
        myCurve.Bar.Fill = new Fill(Color.Red, Color.White, Color.Red, 90F);

        // Generate a bar with "Curve 2" in the legend
        myCurve = myPane.AddBar("Curve 2", y2, null, Color.Blue);
        // Fill the bar with a blue-white-blue gradient for a 3d look
        myCurve.Bar.Fill = new Fill(Color.Blue, Color.White, Color.Blue, 90F);

        // Generate a bar with "Curve 3" in the legend
        myCurve = myPane.AddBar("Curve 3", y3, null, Color.Green);
        // Fill the bar with a Green-white-Green gradient for a 3d look
        myCurve.Bar.Fill = new Fill(Color.White, Color.Green, 90F);

// Draw the X tics between the labels instead of at the labels
myPane.YAxis.MajorTic.IsBetweenLabels = true;

        // Set the XAxis to an ordinal type
        myPane.YAxis.Type = AxisType.Ordinal;
        myPane.XAxis.Scale.Max = 100;
        // draw the X axis zero line
        myPane.XAxis.MajorGrid.IsZeroLine = true;

//This is the part that makes the bars horizontal
myPane.BarSettings.Base = BarBase.Y;

// Fill the axis background with a color gradient
myPane.Chart.Fill = new Fill(Color.White, Color.FromArgb(255, 255, 166), 45.0F);

        masterPane.AxisChange(g);

        //Create a label for each bar in the
        BarItem.CreateBarLabels(myPane, false, "0");

}