ChartDirector 6.2 (.NET Edition)

This example demonstrates 4 quadrant charts in which the x-axis and y-axis meet at the origin at the center of the plot area.

By default, ChartDirector puts the axes at the border of the plot area. This avoids the axis labels and the chart contents from overlapping and making the chart hard to read.

In some cases, it may be desirable to have one or both axes to intersect with the zero point of the other axis, where the zero point can be inside the plot area. In ChartDirector, these kinds of axis configurations may be set up with XYChart.setAxisAtOrigin.

This example also demonstrates using PlotArea.set4QBgColor to specify 4 background colors for the 4 quadrants.

Source Code Listing

[Windows Forms - C# version] NetWinCharts\CSharpWinCharts\fourq.cs
 ```using System; using ChartDirector; namespace CSharpChartExplorer { public class fourq : DemoModule { //Name of demo module public string getName() { return "4 Quadrant Chart"; } //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) { // XY points for the scatter chart double[] dataX0 = {10, 15, 6, -12, 14, -8, 13, -13, 16, 12, 10.5}; double[] dataY0 = {130, 150, 80, 110, -110, -105, -130, 115, -170, 125, 125}; double[] dataX1 = {6, 7, -4, 3.5, 7, 8, -9, -10, -12, 11, 8}; double[] dataY1 = {65, -40, -40, 45, -70, -80, 80, 10, -100, 105, 60}; double[] dataX2 = {-10, -12, 11, 8, 6, 12, -4, 3.5, 7, 8, -9}; double[] dataY2 = {65, -80, -40, 45, -70, -80, 80, 90, -100, 105, 60}; // Create a XYChart object of size 600 x 300 pixels, with a light blue (ccccff) // background, a black border, and 1 pixel 3D border effect XYChart c = new XYChart(600, 480, 0xccccff, 0x000000, 1); // Add a title box to the chart using 16pt Arial Bold Italic font, with white text on // deep blue background c.addTitle("Four Quadrant Chart Demonstration", "Arial Bold Italic", 16, 0xffffff ).setBackground(0x000080); // Set the plotarea at (20, 60) and of size 560 x 360 pixels, with grey (808080) border, // and light grey (c0c0c0) horizontal and vertical grid lines. Set 4 quadrant coloring, // where the colors of the quadrants alternate between lighter and deeper grey // (dddddd/eeeeee) c.setPlotArea(20, 60, 560, 360, -1, -1, 0x808080, 0xc0c0c0, 0xc0c0c0).set4QBgColor( 0xdddddd, 0xeeeeee, 0xdddddd, 0xeeeeee); // Set 4 quadrant mode, with both x and y axes symetrical around the origin c.setAxisAtOrigin(Chart.XYAxisAtOrigin, Chart.XAxisSymmetric + Chart.YAxisSymmetric); // Add a legend box at (300, 460) (bottom center of the chart) with horizontal layout. // Use 8pt Arial Bold font. LegendBox legendBox = c.addLegend(300, 460, false, "Arial Bold", 8); legendBox.setAlignment(Chart.BottomCenter); // Set legend box background to light grey (dddddd) with a black border legendBox.setBackground(0xdddddd, 0); // Set left/right margin to 20 pixels and top/bottom margin to 5 pixels legendBox.setMargin2(20, 20, 5, 5); // Add a titles to axes c.xAxis().setTitle("Alpha Index"); c.yAxis().setTitle("Beta Index"); // Set axes width to 2 pixels c.xAxis().setWidth(2); c.yAxis().setWidth(2); // Add scatter layer, using 15 pixels red (ff33333) X shape symbols c.addScatterLayer(dataX0, dataY0, "Group A", Chart.Cross2Shape(), 15, 0xff3333); // Add scatter layer, using 15 pixels green (33ff33) 6-sided polygon symbols c.addScatterLayer(dataX1, dataY1, "Group B", Chart.PolygonShape(6), 15, 0x33ff33); // Add scatter layer, using 15 pixels blue (3333ff) triangle symbols c.addScatterLayer(dataX2, dataY2, "Group C", Chart.TriangleSymbol, 15, 0x3333ff); // Output the chart viewer.Chart = c; //include tool tip for the chart viewer.ImageMap = c.getHTMLImageMap("clickable", "", "title='[{dataSetName}] Alpha = {x}, Beta = {value}'"); } } }```

[Windows Forms - VB Version] NetWinCharts\VBNetWinCharts\fourq.vb
 ```Imports System Imports Microsoft.VisualBasic Imports ChartDirector Public Class fourq Implements DemoModule 'Name of demo module Public Function getName() As String Implements DemoModule.getName Return "4 Quadrant Chart" 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 ' XY points for the scatter chart Dim dataX0() As Double = {10, 15, 6, -12, 14, -8, 13, -13, 16, 12, 10.5} Dim dataY0() As Double = {130, 150, 80, 110, -110, -105, -130, 115, -170, 125, 125} Dim dataX1() As Double = {6, 7, -4, 3.5, 7, 8, -9, -10, -12, 11, 8} Dim dataY1() As Double = {65, -40, -40, 45, -70, -80, 80, 10, -100, 105, 60} Dim dataX2() As Double = {-10, -12, 11, 8, 6, 12, -4, 3.5, 7, 8, -9} Dim dataY2() As Double = {65, -80, -40, 45, -70, -80, 80, 90, -100, 105, 60} ' Create a XYChart object of size 600 x 300 pixels, with a light blue (ccccff) background, a ' black border, and 1 pixel 3D border effect Dim c As XYChart = New XYChart(600, 480, &Hccccff, &H000000, 1) ' Add a title box to the chart using 16pt Arial Bold Italic font, with white text on deep ' blue background c.addTitle("Four Quadrant Chart Demonstration", "Arial Bold Italic", 16, &Hffffff _ ).setBackground(&H000080) ' Set the plotarea at (20, 60) and of size 560 x 360 pixels, with grey (808080) border, and ' light grey (c0c0c0) horizontal and vertical grid lines. Set 4 quadrant coloring, where the ' colors of the quadrants alternate between lighter and deeper grey (dddddd/eeeeee) c.setPlotArea(20, 60, 560, 360, -1, -1, &H808080, &Hc0c0c0, &Hc0c0c0).set4QBgColor( _ &Hdddddd, &Heeeeee, &Hdddddd, &Heeeeee) ' Set 4 quadrant mode, with both x and y axes symetrical around the origin c.setAxisAtOrigin(Chart.XYAxisAtOrigin, Chart.XAxisSymmetric + Chart.YAxisSymmetric) ' Add a legend box at (300, 460) (bottom center of the chart) with horizontal layout. Use ' 8pt Arial Bold font. Dim legendBox As LegendBox = c.addLegend(300, 460, False, "Arial Bold", 8) legendBox.setAlignment(Chart.BottomCenter) ' Set legend box background to light grey (dddddd) with a black border legendBox.setBackground(&Hdddddd, 0) ' Set left/right margin to 20 pixels and top/bottom margin to 5 pixels legendBox.setMargin2(20, 20, 5, 5) ' Add a titles to axes c.xAxis().setTitle("Alpha Index") c.yAxis().setTitle("Beta Index") ' Set axes width to 2 pixels c.xAxis().setWidth(2) c.yAxis().setWidth(2) ' Add scatter layer, using 15 pixels red (ff33333) X shape symbols c.addScatterLayer(dataX0, dataY0, "Group A", Chart.Cross2Shape(), 15, &Hff3333) ' Add scatter layer, using 15 pixels green (33ff33) 6-sided polygon symbols c.addScatterLayer(dataX1, dataY1, "Group B", Chart.PolygonShape(6), 15, &H33ff33) ' Add scatter layer, using 15 pixels blue (3333ff) triangle symbols c.addScatterLayer(dataX2, dataY2, "Group C", Chart.TriangleSymbol, 15, &H3333ff) ' Output the chart viewer.Chart = c 'include tool tip for the chart viewer.ImageMap = c.getHTMLImageMap("clickable", "", _ "title='[{dataSetName}] Alpha = {x}, Beta = {value}'") End Sub End Class```

[WPF - C#] NetWPFCharts\fourq.cs
 ```using System; using ChartDirector; namespace CSharpWPFDemo { public class fourq : DemoModule { //Name of demo module public string getName() { return "4 Quadrant Chart"; } //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) { // XY points for the scatter chart double[] dataX0 = {10, 15, 6, -12, 14, -8, 13, -13, 16, 12, 10.5}; double[] dataY0 = {130, 150, 80, 110, -110, -105, -130, 115, -170, 125, 125}; double[] dataX1 = {6, 7, -4, 3.5, 7, 8, -9, -10, -12, 11, 8}; double[] dataY1 = {65, -40, -40, 45, -70, -80, 80, 10, -100, 105, 60}; double[] dataX2 = {-10, -12, 11, 8, 6, 12, -4, 3.5, 7, 8, -9}; double[] dataY2 = {65, -80, -40, 45, -70, -80, 80, 90, -100, 105, 60}; // Create a XYChart object of size 600 x 300 pixels, with a light blue (ccccff) // background, a black border, and 1 pixel 3D border effect XYChart c = new XYChart(600, 480, 0xccccff, 0x000000, 1); // Add a title box to the chart using 16pt Arial Bold Italic font, with white text on // deep blue background c.addTitle("Four Quadrant Chart Demonstration", "Arial Bold Italic", 16, 0xffffff ).setBackground(0x000080); // Set the plotarea at (20, 60) and of size 560 x 360 pixels, with grey (808080) border, // and light grey (c0c0c0) horizontal and vertical grid lines. Set 4 quadrant coloring, // where the colors of the quadrants alternate between lighter and deeper grey // (dddddd/eeeeee) c.setPlotArea(20, 60, 560, 360, -1, -1, 0x808080, 0xc0c0c0, 0xc0c0c0).set4QBgColor( 0xdddddd, 0xeeeeee, 0xdddddd, 0xeeeeee); // Set 4 quadrant mode, with both x and y axes symetrical around the origin c.setAxisAtOrigin(Chart.XYAxisAtOrigin, Chart.XAxisSymmetric + Chart.YAxisSymmetric); // Add a legend box at (300, 460) (bottom center of the chart) with horizontal layout. // Use 8pt Arial Bold font. LegendBox legendBox = c.addLegend(300, 460, false, "Arial Bold", 8); legendBox.setAlignment(Chart.BottomCenter); // Set legend box background to light grey (dddddd) with a black border legendBox.setBackground(0xdddddd, 0); // Set left/right margin to 20 pixels and top/bottom margin to 5 pixels legendBox.setMargin2(20, 20, 5, 5); // Add a titles to axes c.xAxis().setTitle("Alpha Index"); c.yAxis().setTitle("Beta Index"); // Set axes width to 2 pixels c.xAxis().setWidth(2); c.yAxis().setWidth(2); // Add scatter layer, using 15 pixels red (ff33333) X shape symbols c.addScatterLayer(dataX0, dataY0, "Group A", Chart.Cross2Shape(), 15, 0xff3333); // Add scatter layer, using 15 pixels green (33ff33) 6-sided polygon symbols c.addScatterLayer(dataX1, dataY1, "Group B", Chart.PolygonShape(6), 15, 0x33ff33); // Add scatter layer, using 15 pixels blue (3333ff) triangle symbols c.addScatterLayer(dataX2, dataY2, "Group C", Chart.TriangleSymbol, 15, 0x3333ff); // Output the chart viewer.Chart = c; //include tool tip for the chart viewer.ImageMap = c.getHTMLImageMap("clickable", "", "title='[{dataSetName}] Alpha = {x}, Beta = {value}'"); } } }```

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

[ASP.NET Web Forms - VB Version] NetWebCharts\VBNetASP\fourq.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 FourqController : Controller { // // Default Action // public ActionResult Index() { ViewBag.Title = "4 Quadrant Chart"; createChart(ViewBag.Viewer = new RazorChartViewer(HttpContext, "chart1")); return View("~/Views/Shared/ChartView.cshtml"); } // // Create chart // private void createChart(RazorChartViewer viewer) { // XY points for the scatter chart double[] dataX0 = {10, 15, 6, -12, 14, -8, 13, -13, 16, 12, 10.5}; double[] dataY0 = {130, 150, 80, 110, -110, -105, -130, 115, -170, 125, 125}; double[] dataX1 = {6, 7, -4, 3.5, 7, 8, -9, -10, -12, 11, 8}; double[] dataY1 = {65, -40, -40, 45, -70, -80, 80, 10, -100, 105, 60}; double[] dataX2 = {-10, -12, 11, 8, 6, 12, -4, 3.5, 7, 8, -9}; double[] dataY2 = {65, -80, -40, 45, -70, -80, 80, 90, -100, 105, 60}; // Create a XYChart object of size 600 x 300 pixels, with a light blue (ccccff) background, a // black border, and 1 pixel 3D border effect XYChart c = new XYChart(600, 480, 0xccccff, 0x000000, 1); // Add a title box to the chart using 16pt Arial Bold Italic font, with white text on deep // blue background c.addTitle("Four Quadrant Chart Demonstration", "Arial Bold Italic", 16, 0xffffff ).setBackground(0x000080); // Set the plotarea at (20, 60) and of size 560 x 360 pixels, with grey (808080) border, and // light grey (c0c0c0) horizontal and vertical grid lines. Set 4 quadrant coloring, where the // colors of the quadrants alternate between lighter and deeper grey (dddddd/eeeeee) c.setPlotArea(20, 60, 560, 360, -1, -1, 0x808080, 0xc0c0c0, 0xc0c0c0).set4QBgColor(0xdddddd, 0xeeeeee, 0xdddddd, 0xeeeeee); // Set 4 quadrant mode, with both x and y axes symetrical around the origin c.setAxisAtOrigin(Chart.XYAxisAtOrigin, Chart.XAxisSymmetric + Chart.YAxisSymmetric); // Add a legend box at (300, 460) (bottom center of the chart) with horizontal layout. Use // 8pt Arial Bold font. LegendBox legendBox = c.addLegend(300, 460, false, "Arial Bold", 8); legendBox.setAlignment(Chart.BottomCenter); // Set legend box background to light grey (dddddd) with a black border legendBox.setBackground(0xdddddd, 0); // Set left/right margin to 20 pixels and top/bottom margin to 5 pixels legendBox.setMargin2(20, 20, 5, 5); // Add a titles to axes c.xAxis().setTitle("Alpha Index"); c.yAxis().setTitle("Beta Index"); // Set axes width to 2 pixels c.xAxis().setWidth(2); c.yAxis().setWidth(2); // Add scatter layer, using 15 pixels red (ff33333) X shape symbols c.addScatterLayer(dataX0, dataY0, "Group A", Chart.Cross2Shape(), 15, 0xff3333); // Add scatter layer, using 15 pixels green (33ff33) 6-sided polygon symbols c.addScatterLayer(dataX1, dataY1, "Group B", Chart.PolygonShape(6), 15, 0x33ff33); // Add scatter layer, using 15 pixels blue (3333ff) triangle symbols c.addScatterLayer(dataX2, dataY2, "Group C", Chart.TriangleSymbol, 15, 0x3333ff); // Output the chart viewer.Image = c.makeWebImage(Chart.PNG); // Include tool tip for the chart viewer.ImageMap = c.getHTMLImageMap("", "", "title='[{dataSetName}] Alpha = {x}, Beta = {value}'"); } } }```
 ```@{ Layout = null; } @ViewBag.Title