雷达

雷达图简洁地显示多个值。雷达图也称为蜘蛛图或星图。

var plt = new ScottPlot.Plot(600, 400);

double[,] values = {
    { 78,  83, 84, 76, 43 },
    { 100, 50, 70, 60, 90 }
};

plt.AddRadar(values);

// improve plot styling
plt.Frameless();
plt.Grid(enable: false);

plt.SaveFig("radar_quickstart.png");

直轴线

将“轴类型”更改为“多边形”，以显示具有直线的雷达图。

var plt = new ScottPlot.Plot(600, 400);

double[,] values = {
        { 78, 83, 84, 76, 43 },
        { 100, 50, 70, 60, 90 }
    };

var radarPlot = plt.AddRadar(values);
radarPlot.AxisType = RadarAxis.Polygon;

plt.SaveFig("radar_straightLines.png");

没有轴线

雷达图也可以没有绘制的轴。

var plt = new ScottPlot.Plot(600, 400);

double[,] values = {
        { 78, 83, 84, 76, 43 },
        { 100, 50, 70, 60, 90 }
    };

var radarPlot = plt.AddRadar(values);
radarPlot.AxisType = RadarAxis.None;
radarPlot.ShowAxisValues = false;

plt.SaveFig("radar_noLines.png");

标记类别

类别标签可以显示在雷达图上。

var plt = new ScottPlot.Plot(600, 400);

double[,] values = {
    { 5, 3, 10, 15, 3, 2, 256 },
    { 5, 2, 10, 10, 1, 4, 252 },
};

var radar = plt.AddRadar(values, independentAxes: true);
radar.CategoryLabels = new string[] { "Wins", "Poles", "Podiums", "Points Finishes", "DNFs", "Fastest Laps", "Points" };
radar.GroupLabels = new[] { "Sebastian Vettel", "Fernando Alonso" };
radar.ShowAxisValues = false;

// customize the plot
plt.Title("2010 Formula One World Championship");
plt.Legend();

/* Data represents the 2010 Formula One World Championship
 * https://en.wikipedia.org/wiki/2010_Formula_One_World_Championship
 * Note: Alonso did not finish (DNF) in the Malaysian GP, but was included 
 * here because he completed >90% of the race distance.
 */

plt.SaveFig("radar_labelCategory.png");

标记值

标签可以显示在雷达图的臂上。

var plt = new ScottPlot.Plot(600, 400);

double[,] values = {
    { 5, 3, 10, 15, 3, 2 },
    { 5, 2, 10, 10, 1, 4 },
};

var radar = plt.AddRadar(values);
radar.CategoryLabels = new string[] { "Wins", "Poles", "Podiums", "Points Finishes", "DNFs", "Fastest Laps" };
radar.GroupLabels = new string[] { "Sebastian Vettel", "Fernando Alonso" };

// customize the plot
plt.Title("2010 Formula One World Championship");
plt.Legend();

/* Data represents the 2010 Formula One World Championship
 * https://en.wikipedia.org/wiki/2010_Formula_One_World_Championship
 * Note: Alonso did not finish (DNF) in the Malaysian GP, but was included 
 * here because he completed >90% of the race distance.
 */

plt.SaveFig("radar_labelValue.png");

可自定义多边形轮廓

每个雷达图轮廓的厚度可以定制。

var plt = new ScottPlot.Plot(600, 400);

double[,] values = {
    { 5, 3, 10, 15, 3, 2 },
    { 5, 2, 10, 10, 1, 4 },
};

var radar = plt.AddRadar(values);
radar.OutlineWidth = 3;
radar.GroupLabels = new string[] { "Sebastian Vettel", "Fernando Alonso" };
plt.Title("2010 Formula One World Championship");
plt.Legend();

/* Data represents the 2010 Formula One World Championship
 * https://en.wikipedia.org/wiki/2010_Formula_One_World_Championship
 * Note: Alonso did not finish (DNF) in the Malaysian GP, but was included 
 * here because he completed >90% of the race distance.
 */

plt.SaveFig("radar_customizePolygonOutline.png");

带有图像的类别

图像可以显示在雷达图的臂上。使用图像时，标签将被忽略，因此设置它们将无效。

var plt = new ScottPlot.Plot(600, 400);

double[,] values = {
    { 5, 15, 3, 2 },
    { 5, 10, 1, 4 },
};

var radar = plt.AddRadar(values);
radar.CategoryImages = CategoryImages;
radar.GroupLabels = new string[] { "Sebastian Vettel", "Fernando Alonso" };

// customize the plot
plt.Title("2010 Formula One World Championship");
plt.Legend();

/* Data represents the 2010 Formula One World Championship
 * https://en.wikipedia.org/wiki/2010_Formula_One_World_Championship
 * Note: Alonso did not finish (DNF) in the Malaysian GP, but was included 
 * here because he completed >90% of the race distance.
 */

plt.SaveFig("radar_iconValue.png");

独立轴缩放

轴比例可以是独立的，允许使用不同的比例显示每个类别的值。启用独立轴模式时，轴限制会自动调整以适应数据范围。

var plt = new ScottPlot.Plot(600, 400);

double[,] values = { { 5, 3, 10, 15, 3, 2, 256 }, { 5, 2, 10, 10, 1, 4, 252 }, };

var radar = plt.AddRadar(values, independentAxes: true);
radar.CategoryLabels = new string[] { "Wins", "Poles", "Podiums", "Points Finishes", "DNFs", "Fastest Laps", "Points" };
radar.GroupLabels = new string[] { "Sebastian Vettel", "Fernando Alonso" };

// customize the plot
plt.Title("2010 Formula One World Championship");
plt.Legend();

/* Data represents the 2010 Formula One World Championship
 * https://en.wikipedia.org/wiki/2010_Formula_One_World_Championship
 * Note: Alonso did not finish (DNF) in the Malaysian GP, but was included 
 * here because he completed >90% of the race distance.
 */

plt.SaveFig("radar_axisScaling.png");

定义的轴限制

默认情况下，具有独立轴限制的雷达图使用适合数据的比例，但可以通过定义每个轴的最大值来控制比例。

var plt = new ScottPlot.Plot(600, 400);

double[,] values = {
    { 5, 3, 10, 15, 3, 2, 256 },
    { 5, 2, 10, 10, 1, 4, 252 },
};

double[] maxValues = { 13, 15, 17, 15, 10, 10, 413 };

var radar = plt.AddRadar(values, independentAxes: true, maxValues: maxValues);
radar.CategoryLabels = new string[] { "Wins", "Poles", "Podiums", "Points Finishes", "DNFs", "Fastest Laps", "Points" };
radar.GroupLabels = new string[] { "Sebastian Vettel", "Fernando Alonso" };

// customize the plot
plt.Title("2010 Formula One World Championship");
plt.Legend();

/* Data represents the 2010 Formula One World Championship
 * https://en.wikipedia.org/wiki/2010_Formula_One_World_Championship
 * Note: Alonso did not finish (DNF) in the Malaysian GP, but was included 
 * here because he completed >90% of the race distance.
 *
 * Max values are based on https://en.wikipedia.org/wiki/List_of_Formula_One_World_Drivers%27_Champions.
 */

plt.SaveFig("radar_axisLimits.png");

定制

雷达图支持线条颜色和宽度的定制。

var plt = new ScottPlot.Plot(600, 400);

double[,] values = {
    { 78,  83, 84, 76, 43 },
    { 100, 50, 70, 60, 90 }
};

var radar = plt.AddRadar(values);
radar.WebColor = System.Drawing.Color.Red;
radar.LineWidth = 3;

plt.SaveFig("radar_customization.png");