ChartDirector 6.2 (.NET Edition)

Bubble XY Scaling

This example demonstrates a bubble chart with independent x and y bubble sizes and non-circular bubbles.

In ChartDirector, a bubble chart in general is a scatter layer with the symbol sizes controlled by some other data series.

ChartDirector supports using arbitrary symbols as bubbles. Thus bubble shape is not limited to circle but can be any shapes.

Furthermore, ChartDirector supports independent x and y sizes for bubbles. This is useful for creating charts in which the bubbles reflect some features of the data points, such as its confidence zone, x and y errors, x and y standard deviations, etc.

Source Code Listing

[Windows Forms - C# version] NetWinCharts\CSharpWinCharts\bubblescale.cs
 ```using System; using ChartDirector; namespace CSharpChartExplorer { public class bubblescale : DemoModule { //Name of demo module public string getName() { return "Bubble XY Scaling"; } //Number of charts produced in this demo module public int getNoOfCharts() { return 1; } //Main code for creating chart. //Note: the argument chartIndex is unused because this demo only has 1 chart. public void createChart(WinChartViewer viewer, int chartIndex) { // The XY points for the bubble chart. The bubble chart has independent bubble size on // the X and Y direction. double[] dataX0 = {1000, 1500, 1700}; double[] dataY0 = {25, 20, 65}; double[] dataZX0 = {500, 200, 600}; double[] dataZY0 = {15, 30, 20}; double[] dataX1 = {500, 1000, 1300}; double[] dataY1 = {35, 50, 75}; double[] dataZX1 = {800, 300, 500}; double[] dataZY1 = {8, 27, 25}; double[] dataX2 = {150, 300}; double[] dataY2 = {20, 60}; double[] dataZX2 = {160, 400}; double[] dataZY2 = {30, 20}; // Create a XYChart object of size 450 x 420 pixels XYChart c = new XYChart(450, 420); // Set the plotarea at (55, 65) and of size 350 x 300 pixels, with a light grey border // (0xc0c0c0). Turn on both horizontal and vertical grid lines with light grey color // (0xc0c0c0) c.setPlotArea(55, 65, 350, 300, -1, -1, 0xc0c0c0, 0xc0c0c0, -1); // Add a legend box at (50, 30) (top of the chart) with horizontal layout. Use 12pt // Times Bold Italic font. Set the background and border color to Transparent. c.addLegend(50, 30, false, "Times New Roman Bold Italic", 12).setBackground( Chart.Transparent); // Add a title to the chart using 18pt Times Bold Itatic font. c.addTitle("Plasma Battery Comparison", "Times New Roman Bold Italic", 18); // Add titles to the axes using 12pt Arial Bold Italic font c.yAxis().setTitle("Operating Current", "Arial Bold Italic", 12); c.xAxis().setTitle("Operating Voltage", "Arial Bold Italic", 12); // Set the axes line width to 3 pixels c.xAxis().setWidth(3); c.yAxis().setWidth(3); // Add (dataX0, dataY0) as a standard scatter layer, and also as a "bubble" scatter // layer, using circles as symbols. The "bubble" scatter layer has symbol size modulated // by (dataZX0, dataZY0) using the scale on the x and y axes. c.addScatterLayer(dataX0, dataY0, "Vendor A", Chart.CircleSymbol, 9, 0xff3333, 0xff3333) ; c.addScatterLayer(dataX0, dataY0, "", Chart.CircleSymbol, 9, unchecked((int)0x80ff3333), unchecked((int)0x80ff3333)).setSymbolScale(dataZX0, Chart.XAxisScale, dataZY0, Chart.YAxisScale); // Add (dataX1, dataY1) as a standard scatter layer, and also as a "bubble" scatter // layer, using squares as symbols. The "bubble" scatter layer has symbol size modulated // by (dataZX1, dataZY1) using the scale on the x and y axes. c.addScatterLayer(dataX1, dataY1, "Vendor B", Chart.SquareSymbol, 7, 0x3333ff, 0x3333ff) ; c.addScatterLayer(dataX1, dataY1, "", Chart.SquareSymbol, 9, unchecked((int)0x803333ff), unchecked((int)0x803333ff)).setSymbolScale(dataZX1, Chart.XAxisScale, dataZY1, Chart.YAxisScale); // Add (dataX2, dataY2) as a standard scatter layer, and also as a "bubble" scatter // layer, using diamonds as symbols. The "bubble" scatter layer has symbol size // modulated by (dataZX2, dataZY2) using the scale on the x and y axes. c.addScatterLayer(dataX2, dataY2, "Vendor C", Chart.DiamondSymbol, 9, 0x00ff00, 0x00ff00 ); c.addScatterLayer(dataX2, dataY2, "", Chart.DiamondSymbol, 9, unchecked((int)0x8033ff33), unchecked((int)0x8033ff33)).setSymbolScale(dataZX2, Chart.XAxisScale, dataZY2, Chart.YAxisScale); // Output the chart viewer.Chart = c; //include tool tip for the chart viewer.ImageMap = c.getHTMLImageMap("clickable", "", "title='Voltage = {x} +/- {={zx}/2} V, Current = {value} +/- {={zy}/2} A'"); } } }```

[Windows Forms - VB Version] NetWinCharts\VBNetWinCharts\bubblescale.vb
 ```Imports System Imports Microsoft.VisualBasic Imports ChartDirector Public Class bubblescale Implements DemoModule 'Name of demo module Public Function getName() As String Implements DemoModule.getName Return "Bubble XY Scaling" End Function 'Number of charts produced in this demo module Public Function getNoOfCharts() As Integer Implements DemoModule.getNoOfCharts Return 1 End Function 'Main code for creating chart. 'Note: the argument chartIndex is unused because this demo only has 1 chart. Public Sub createChart(viewer As WinChartViewer, chartIndex As Integer) _ Implements DemoModule.createChart ' The XY points for the bubble chart. The bubble chart has independent bubble size on the X ' and Y direction. Dim dataX0() As Double = {1000, 1500, 1700} Dim dataY0() As Double = {25, 20, 65} Dim dataZX0() As Double = {500, 200, 600} Dim dataZY0() As Double = {15, 30, 20} Dim dataX1() As Double = {500, 1000, 1300} Dim dataY1() As Double = {35, 50, 75} Dim dataZX1() As Double = {800, 300, 500} Dim dataZY1() As Double = {8, 27, 25} Dim dataX2() As Double = {150, 300} Dim dataY2() As Double = {20, 60} Dim dataZX2() As Double = {160, 400} Dim dataZY2() As Double = {30, 20} ' Create a XYChart object of size 450 x 420 pixels Dim c As XYChart = New XYChart(450, 420) ' Set the plotarea at (55, 65) and of size 350 x 300 pixels, with a light grey border ' (0xc0c0c0). Turn on both horizontal and vertical grid lines with light grey color ' (0xc0c0c0) c.setPlotArea(55, 65, 350, 300, -1, -1, &Hc0c0c0, &Hc0c0c0, -1) ' Add a legend box at (50, 30) (top of the chart) with horizontal layout. Use 12pt Times ' Bold Italic font. Set the background and border color to Transparent. c.addLegend(50, 30, False, "Times New Roman Bold Italic", 12).setBackground( _ Chart.Transparent) ' Add a title to the chart using 18pt Times Bold Itatic font. c.addTitle("Plasma Battery Comparison", "Times New Roman Bold Italic", 18) ' Add titles to the axes using 12pt Arial Bold Italic font c.yAxis().setTitle("Operating Current", "Arial Bold Italic", 12) c.xAxis().setTitle("Operating Voltage", "Arial Bold Italic", 12) ' Set the axes line width to 3 pixels c.xAxis().setWidth(3) c.yAxis().setWidth(3) ' Add (dataX0, dataY0) as a standard scatter layer, and also as a "bubble" scatter layer, ' using circles as symbols. The "bubble" scatter layer has symbol size modulated by ' (dataZX0, dataZY0) using the scale on the x and y axes. c.addScatterLayer(dataX0, dataY0, "Vendor A", Chart.CircleSymbol, 9, &Hff3333, &Hff3333) c.addScatterLayer(dataX0, dataY0, "", Chart.CircleSymbol, 9, &H80ff3333, &H80ff3333 _ ).setSymbolScale(dataZX0, Chart.XAxisScale, dataZY0, Chart.YAxisScale) ' Add (dataX1, dataY1) as a standard scatter layer, and also as a "bubble" scatter layer, ' using squares as symbols. The "bubble" scatter layer has symbol size modulated by ' (dataZX1, dataZY1) using the scale on the x and y axes. c.addScatterLayer(dataX1, dataY1, "Vendor B", Chart.SquareSymbol, 7, &H3333ff, &H3333ff) c.addScatterLayer(dataX1, dataY1, "", Chart.SquareSymbol, 9, &H803333ff, &H803333ff _ ).setSymbolScale(dataZX1, Chart.XAxisScale, dataZY1, Chart.YAxisScale) ' Add (dataX2, dataY2) as a standard scatter layer, and also as a "bubble" scatter layer, ' using diamonds as symbols. The "bubble" scatter layer has symbol size modulated by ' (dataZX2, dataZY2) using the scale on the x and y axes. c.addScatterLayer(dataX2, dataY2, "Vendor C", Chart.DiamondSymbol, 9, &H00ff00, &H00ff00) c.addScatterLayer(dataX2, dataY2, "", Chart.DiamondSymbol, 9, &H8033ff33, &H8033ff33 _ ).setSymbolScale(dataZX2, Chart.XAxisScale, dataZY2, Chart.YAxisScale) ' Output the chart viewer.Chart = c 'include tool tip for the chart viewer.ImageMap = c.getHTMLImageMap("clickable", "", _ "title='Voltage = {x} +/- {={zx}/2} V, Current = {value} +/- {={zy}/2} A'") End Sub End Class```

[WPF - C#] NetWPFCharts\bubblescale.cs
 ```using System; using ChartDirector; namespace CSharpWPFDemo { public class bubblescale : DemoModule { //Name of demo module public string getName() { return "Bubble XY Scaling"; } //Number of charts produced in this demo module public int getNoOfCharts() { return 1; } //Main code for creating chart. //Note: the argument chartIndex is unused because this demo only has 1 chart. public void createChart(WPFChartViewer viewer, int chartIndex) { // The XY points for the bubble chart. The bubble chart has independent bubble size on // the X and Y direction. double[] dataX0 = {1000, 1500, 1700}; double[] dataY0 = {25, 20, 65}; double[] dataZX0 = {500, 200, 600}; double[] dataZY0 = {15, 30, 20}; double[] dataX1 = {500, 1000, 1300}; double[] dataY1 = {35, 50, 75}; double[] dataZX1 = {800, 300, 500}; double[] dataZY1 = {8, 27, 25}; double[] dataX2 = {150, 300}; double[] dataY2 = {20, 60}; double[] dataZX2 = {160, 400}; double[] dataZY2 = {30, 20}; // Create a XYChart object of size 450 x 420 pixels XYChart c = new XYChart(450, 420); // Set the plotarea at (55, 65) and of size 350 x 300 pixels, with a light grey border // (0xc0c0c0). Turn on both horizontal and vertical grid lines with light grey color // (0xc0c0c0) c.setPlotArea(55, 65, 350, 300, -1, -1, 0xc0c0c0, 0xc0c0c0, -1); // Add a legend box at (50, 30) (top of the chart) with horizontal layout. Use 12pt // Times Bold Italic font. Set the background and border color to Transparent. c.addLegend(50, 30, false, "Times New Roman Bold Italic", 12).setBackground( Chart.Transparent); // Add a title to the chart using 18pt Times Bold Itatic font. c.addTitle("Plasma Battery Comparison", "Times New Roman Bold Italic", 18); // Add titles to the axes using 12pt Arial Bold Italic font c.yAxis().setTitle("Operating Current", "Arial Bold Italic", 12); c.xAxis().setTitle("Operating Voltage", "Arial Bold Italic", 12); // Set the axes line width to 3 pixels c.xAxis().setWidth(3); c.yAxis().setWidth(3); // Add (dataX0, dataY0) as a standard scatter layer, and also as a "bubble" scatter // layer, using circles as symbols. The "bubble" scatter layer has symbol size modulated // by (dataZX0, dataZY0) using the scale on the x and y axes. c.addScatterLayer(dataX0, dataY0, "Vendor A", Chart.CircleSymbol, 9, 0xff3333, 0xff3333) ; c.addScatterLayer(dataX0, dataY0, "", Chart.CircleSymbol, 9, unchecked((int)0x80ff3333), unchecked((int)0x80ff3333)).setSymbolScale(dataZX0, Chart.XAxisScale, dataZY0, Chart.YAxisScale); // Add (dataX1, dataY1) as a standard scatter layer, and also as a "bubble" scatter // layer, using squares as symbols. The "bubble" scatter layer has symbol size modulated // by (dataZX1, dataZY1) using the scale on the x and y axes. c.addScatterLayer(dataX1, dataY1, "Vendor B", Chart.SquareSymbol, 7, 0x3333ff, 0x3333ff) ; c.addScatterLayer(dataX1, dataY1, "", Chart.SquareSymbol, 9, unchecked((int)0x803333ff), unchecked((int)0x803333ff)).setSymbolScale(dataZX1, Chart.XAxisScale, dataZY1, Chart.YAxisScale); // Add (dataX2, dataY2) as a standard scatter layer, and also as a "bubble" scatter // layer, using diamonds as symbols. The "bubble" scatter layer has symbol size // modulated by (dataZX2, dataZY2) using the scale on the x and y axes. c.addScatterLayer(dataX2, dataY2, "Vendor C", Chart.DiamondSymbol, 9, 0x00ff00, 0x00ff00 ); c.addScatterLayer(dataX2, dataY2, "", Chart.DiamondSymbol, 9, unchecked((int)0x8033ff33), unchecked((int)0x8033ff33)).setSymbolScale(dataZX2, Chart.XAxisScale, dataZY2, Chart.YAxisScale); // Output the chart viewer.Chart = c; //include tool tip for the chart viewer.ImageMap = c.getHTMLImageMap("clickable", "", "title='Voltage = {x} +/- {={zx}/2} V, Current = {value} +/- {={zy}/2} A'"); } } }```

[ASP.NET Web Forms - C# version] NetWebCharts\CSharpASP\bubblescale.aspx
 ```<%@ Page Language="C#" Debug="true" %> <%@ Import Namespace="ChartDirector" %> <%@ Register TagPrefix="chart" Namespace="ChartDirector" Assembly="netchartdir" %> ```

[ASP.NET Web Forms - VB Version] NetWebCharts\VBNetASP\bubblescale.aspx
 ```<%@ Page Language="VB" Debug="true" %> <%@ Import Namespace="ChartDirector" %> <%@ Register TagPrefix="chart" Namespace="ChartDirector" Assembly="netchartdir" %> ```
 ```using System; using System.Web.Mvc; using ChartDirector; namespace NetMvcCharts.Controllers { public class BubblescaleController : Controller { // // Default Action // public ActionResult Index() { ViewBag.Title = "Bubble XY Scaling"; createChart(ViewBag.Viewer = new RazorChartViewer(HttpContext, "chart1")); return View("~/Views/Shared/ChartView.cshtml"); } // // Create chart // private void createChart(RazorChartViewer viewer) { // The XY points for the bubble chart. The bubble chart has independent bubble size on the X // and Y direction. double[] dataX0 = {1000, 1500, 1700}; double[] dataY0 = {25, 20, 65}; double[] dataZX0 = {500, 200, 600}; double[] dataZY0 = {15, 30, 20}; double[] dataX1 = {500, 1000, 1300}; double[] dataY1 = {35, 50, 75}; double[] dataZX1 = {800, 300, 500}; double[] dataZY1 = {8, 27, 25}; double[] dataX2 = {150, 300}; double[] dataY2 = {20, 60}; double[] dataZX2 = {160, 400}; double[] dataZY2 = {30, 20}; // Create a XYChart object of size 450 x 420 pixels XYChart c = new XYChart(450, 420); // Set the plotarea at (55, 65) and of size 350 x 300 pixels, with a light grey border // (0xc0c0c0). Turn on both horizontal and vertical grid lines with light grey color // (0xc0c0c0) c.setPlotArea(55, 65, 350, 300, -1, -1, 0xc0c0c0, 0xc0c0c0, -1); // Add a legend box at (50, 30) (top of the chart) with horizontal layout. Use 12pt Times // Bold Italic font. Set the background and border color to Transparent. c.addLegend(50, 30, false, "Times New Roman Bold Italic", 12).setBackground(Chart.Transparent ); // Add a title to the chart using 18pt Times Bold Itatic font. c.addTitle("Plasma Battery Comparison", "Times New Roman Bold Italic", 18); // Add titles to the axes using 12pt Arial Bold Italic font c.yAxis().setTitle("Operating Current", "Arial Bold Italic", 12); c.xAxis().setTitle("Operating Voltage", "Arial Bold Italic", 12); // Set the axes line width to 3 pixels c.xAxis().setWidth(3); c.yAxis().setWidth(3); // Add (dataX0, dataY0) as a standard scatter layer, and also as a "bubble" scatter layer, // using circles as symbols. The "bubble" scatter layer has symbol size modulated by // (dataZX0, dataZY0) using the scale on the x and y axes. c.addScatterLayer(dataX0, dataY0, "Vendor A", Chart.CircleSymbol, 9, 0xff3333, 0xff3333); c.addScatterLayer(dataX0, dataY0, "", Chart.CircleSymbol, 9, unchecked((int)0x80ff3333), unchecked((int)0x80ff3333)).setSymbolScale(dataZX0, Chart.XAxisScale, dataZY0, Chart.YAxisScale); // Add (dataX1, dataY1) as a standard scatter layer, and also as a "bubble" scatter layer, // using squares as symbols. The "bubble" scatter layer has symbol size modulated by // (dataZX1, dataZY1) using the scale on the x and y axes. c.addScatterLayer(dataX1, dataY1, "Vendor B", Chart.SquareSymbol, 7, 0x3333ff, 0x3333ff); c.addScatterLayer(dataX1, dataY1, "", Chart.SquareSymbol, 9, unchecked((int)0x803333ff), unchecked((int)0x803333ff)).setSymbolScale(dataZX1, Chart.XAxisScale, dataZY1, Chart.YAxisScale); // Add (dataX2, dataY2) as a standard scatter layer, and also as a "bubble" scatter layer, // using diamonds as symbols. The "bubble" scatter layer has symbol size modulated by // (dataZX2, dataZY2) using the scale on the x and y axes. c.addScatterLayer(dataX2, dataY2, "Vendor C", Chart.DiamondSymbol, 9, 0x00ff00, 0x00ff00); c.addScatterLayer(dataX2, dataY2, "", Chart.DiamondSymbol, 9, unchecked((int)0x8033ff33), unchecked((int)0x8033ff33)).setSymbolScale(dataZX2, Chart.XAxisScale, dataZY2, Chart.YAxisScale); // Output the chart viewer.Image = c.makeWebImage(Chart.PNG); // Include tool tip for the chart viewer.ImageMap = c.getHTMLImageMap("", "", "title='Voltage = {x} +/- {={zx}/2} V, Current = {value} +/- {={zy}/2} A'"); } } }```
 ```@{ Layout = null; } @ViewBag.Title