ChartDirector 6.2 (.NET Edition)

Surface Lighting

This example demonstrates the effects of various surface lighting parameters, configured using SurfaceChart.setLighting.

Source Code Listing

[Windows Forms - C# version] NetWinCharts\CSharpWinCharts\surfacelighting.cs
 ```using System; using ChartDirector; namespace CSharpChartExplorer { public class surfacelighting : DemoModule { //Name of demo module public string getName() { return "Surface Lighting"; } //Number of charts produced in this demo module public int getNoOfCharts() { return 4; } //Main code for creating charts public void createChart(WinChartViewer viewer, int chartIndex) { // The x and y coordinates of the grid double[] dataX = {-10, -8, -6, -4, -2, 0, 2, 4, 6, 8, 10}; double[] dataY = {-10, -8, -6, -4, -2, 0, 2, 4, 6, 8, 10}; // The values at the grid points. In this example, we will compute the values using the // formula z = x * sin(y) + y * sin(x). double[] dataZ = new double[dataX.Length * dataY.Length]; for(int yIndex = 0; yIndex < dataY.Length; ++yIndex) { double y = dataY[yIndex]; for(int xIndex = 0; xIndex < dataX.Length; ++xIndex) { double x = dataX[xIndex]; dataZ[yIndex * dataX.Length + xIndex] = x * Math.Sin(y) + y * Math.Sin(x); } } // Create a SurfaceChart object of size 380 x 400 pixels, with white (ffffff) background // and grey (888888) border. SurfaceChart c = new SurfaceChart(380, 400, 0xffffff, 0x888888); // Demonstrate various lighting parameters if (chartIndex == 0) { c.addTitle( "Default Lighting<*br*><*size=10*>Ambient = 0.5, Diffuse = 0.5, Specular = " + "1, Shininess = 8"); } else if (chartIndex == 1) { c.addTitle( "Matte (Non-Glossy) Lighting<*br*><*size=10*>Ambient = 0.5, Diffuse = 0.5, " + "Specular = 0, Shininess = 0"); c.setLighting(0.5, 0.5, 0, 0); } else if (chartIndex == 2) { c.addTitle( "Flat Lighting<*br*><*size=10*>Ambient = 1, Diffuse = 0, Specular = 0, " + "Shininess = 0"); c.setLighting(1, 0, 0, 0); } else { c.addTitle( "Strong Glossy Lighting<*br*><*size=10*>Ambient = 0.5, Diffuse = 0.5, " + "Specular = 4, Shininess = 32"); c.setLighting(0.5, 0.5, 4, 32); } // Set the center of the plot region at (175, 200), and set width x depth x height to // 200 x 200 x 160 pixels c.setPlotRegion(175, 200, 200, 200, 160); // Set the plot region wall thichness to 5 pixels c.setWallThickness(5); // Set the elevation and rotation angles to 45 and 60 degrees c.setViewAngle(45, 60); // Set the perspective level to 35 c.setPerspective(35); // Set the data to use to plot the chart c.setData(dataX, dataY, dataZ); // Spline interpolate data to a 50 x 50 grid for a smooth surface c.setInterpolation(50, 50); // Set contour lines to semi-transparent black (c0000000) c.setContourColor(unchecked((int)0xc0000000)); // Output the chart viewer.Chart = c; } } }```

[Windows Forms - VB Version] NetWinCharts\VBNetWinCharts\surfacelighting.vb
 ```Imports System Imports Microsoft.VisualBasic Imports ChartDirector Public Class surfacelighting Implements DemoModule 'Name of demo module Public Function getName() As String Implements DemoModule.getName Return "Surface Lighting" End Function 'Number of charts produced in this demo module Public Function getNoOfCharts() As Integer Implements DemoModule.getNoOfCharts Return 4 End Function 'Main code for creating charts Public Sub createChart(viewer As WinChartViewer, chartIndex As Integer) _ Implements DemoModule.createChart ' The x and y coordinates of the grid Dim dataX() As Double = {-10, -8, -6, -4, -2, 0, 2, 4, 6, 8, 10} Dim dataY() As Double = {-10, -8, -6, -4, -2, 0, 2, 4, 6, 8, 10} ' The values at the grid points. In this example, we will compute the values using the ' formula z = x * sin(y) + y * sin(x). Dim dataZ((UBound(dataX) + 1) * (UBound(dataY) + 1) - 1) As Double For yIndex As Integer = 0 To UBound(dataY) Dim y As Double = dataY(yIndex) For xIndex As Integer = 0 To UBound(dataX) Dim x As Double = dataX(xIndex) dataZ(yIndex * (UBound(dataX) + 1) + xIndex) = x * Math.Sin(y) + y * Math.Sin(x) Next Next ' Create a SurfaceChart object of size 380 x 400 pixels, with white (ffffff) background and ' grey (888888) border. Dim c As SurfaceChart = New SurfaceChart(380, 400, &Hffffff, &H888888) ' Demonstrate various lighting parameters If chartIndex = 0 Then c.addTitle( _ "Default Lighting<*br*><*size=10*>Ambient = 0.5, Diffuse = 0.5, Specular = 1, " & _ "Shininess = 8") ElseIf chartIndex = 1 Then c.addTitle( _ "Matte (Non-Glossy) Lighting<*br*><*size=10*>Ambient = 0.5, Diffuse = 0.5, " & _ "Specular = 0, Shininess = 0") c.setLighting(0.5, 0.5, 0, 0) ElseIf chartIndex = 2 Then c.addTitle( _ "Flat Lighting<*br*><*size=10*>Ambient = 1, Diffuse = 0, Specular = 0, " & _ "Shininess = 0") c.setLighting(1, 0, 0, 0) Else c.addTitle( _ "Strong Glossy Lighting<*br*><*size=10*>Ambient = 0.5, Diffuse = 0.5, Specular " & _ "= 4, Shininess = 32") c.setLighting(0.5, 0.5, 4, 32) End If ' Set the center of the plot region at (175, 200), and set width x depth x height to 200 x ' 200 x 160 pixels c.setPlotRegion(175, 200, 200, 200, 160) ' Set the plot region wall thichness to 5 pixels c.setWallThickness(5) ' Set the elevation and rotation angles to 45 and 60 degrees c.setViewAngle(45, 60) ' Set the perspective level to 35 c.setPerspective(35) ' Set the data to use to plot the chart c.setData(dataX, dataY, dataZ) ' Spline interpolate data to a 50 x 50 grid for a smooth surface c.setInterpolation(50, 50) ' Set contour lines to semi-transparent black (c0000000) c.setContourColor(&Hc0000000) ' Output the chart viewer.Chart = c End Sub End Class```

[WPF - C#] NetWPFCharts\surfacelighting.cs
 ```using System; using ChartDirector; namespace CSharpWPFDemo { public class surfacelighting : DemoModule { //Name of demo module public string getName() { return "Surface Lighting"; } //Number of charts produced in this demo module public int getNoOfCharts() { return 4; } //Main code for creating charts public void createChart(WPFChartViewer viewer, int chartIndex) { // The x and y coordinates of the grid double[] dataX = {-10, -8, -6, -4, -2, 0, 2, 4, 6, 8, 10}; double[] dataY = {-10, -8, -6, -4, -2, 0, 2, 4, 6, 8, 10}; // The values at the grid points. In this example, we will compute the values using the // formula z = x * sin(y) + y * sin(x). double[] dataZ = new double[dataX.Length * dataY.Length]; for(int yIndex = 0; yIndex < dataY.Length; ++yIndex) { double y = dataY[yIndex]; for(int xIndex = 0; xIndex < dataX.Length; ++xIndex) { double x = dataX[xIndex]; dataZ[yIndex * dataX.Length + xIndex] = x * Math.Sin(y) + y * Math.Sin(x); } } // Create a SurfaceChart object of size 380 x 400 pixels, with white (ffffff) background // and grey (888888) border. SurfaceChart c = new SurfaceChart(380, 400, 0xffffff, 0x888888); // Demonstrate various lighting parameters if (chartIndex == 0) { c.addTitle( "Default Lighting<*br*><*size=10*>Ambient = 0.5, Diffuse = 0.5, Specular = " + "1, Shininess = 8"); } else if (chartIndex == 1) { c.addTitle( "Matte (Non-Glossy) Lighting<*br*><*size=10*>Ambient = 0.5, Diffuse = 0.5, " + "Specular = 0, Shininess = 0"); c.setLighting(0.5, 0.5, 0, 0); } else if (chartIndex == 2) { c.addTitle( "Flat Lighting<*br*><*size=10*>Ambient = 1, Diffuse = 0, Specular = 0, " + "Shininess = 0"); c.setLighting(1, 0, 0, 0); } else { c.addTitle( "Strong Glossy Lighting<*br*><*size=10*>Ambient = 0.5, Diffuse = 0.5, " + "Specular = 4, Shininess = 32"); c.setLighting(0.5, 0.5, 4, 32); } // Set the center of the plot region at (175, 200), and set width x depth x height to // 200 x 200 x 160 pixels c.setPlotRegion(175, 200, 200, 200, 160); // Set the plot region wall thichness to 5 pixels c.setWallThickness(5); // Set the elevation and rotation angles to 45 and 60 degrees c.setViewAngle(45, 60); // Set the perspective level to 35 c.setPerspective(35); // Set the data to use to plot the chart c.setData(dataX, dataY, dataZ); // Spline interpolate data to a 50 x 50 grid for a smooth surface c.setInterpolation(50, 50); // Set contour lines to semi-transparent black (c0000000) c.setContourColor(unchecked((int)0xc0000000)); // Output the chart viewer.Chart = c; } } }```

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

[ASP.NET Web Forms - VB Version] NetWebCharts\VBNetASP\surfacelighting.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 SurfacelightingController : Controller { // // Default Action // public ActionResult Index() { ViewBag.Title = "Surface Lighting"; // This example contains 4 charts. ViewBag.Viewer = new RazorChartViewer[4]; for (int i = 0; i < ViewBag.Viewer.Length; ++i) createChart(ViewBag.Viewer[i] = new RazorChartViewer(HttpContext, "chart" + i), i); return View("~/Views/Shared/ChartView.cshtml"); } // // Create chart // private void createChart(RazorChartViewer viewer, int chartIndex) { // The x and y coordinates of the grid double[] dataX = {-10, -8, -6, -4, -2, 0, 2, 4, 6, 8, 10}; double[] dataY = {-10, -8, -6, -4, -2, 0, 2, 4, 6, 8, 10}; // The values at the grid points. In this example, we will compute the values using the // formula z = x * sin(y) + y * sin(x). double[] dataZ = new double[dataX.Length * dataY.Length]; for(int yIndex = 0; yIndex < dataY.Length; ++yIndex) { double y = dataY[yIndex]; for(int xIndex = 0; xIndex < dataX.Length; ++xIndex) { double x = dataX[xIndex]; dataZ[yIndex * dataX.Length + xIndex] = x * Math.Sin(y) + y * Math.Sin(x); } } // Create a SurfaceChart object of size 380 x 400 pixels, with white (ffffff) background and // grey (888888) border. SurfaceChart c = new SurfaceChart(380, 400, 0xffffff, 0x888888); // Demonstrate various lighting parameters if (chartIndex == 0) { c.addTitle( "Default Lighting<*br*><*size=10*>Ambient = 0.5, Diffuse = 0.5, Specular = 1, " + "Shininess = 8"); } else if (chartIndex == 1) { c.addTitle( "Matte (Non-Glossy) Lighting<*br*><*size=10*>Ambient = 0.5, Diffuse = 0.5, " + "Specular = 0, Shininess = 0"); c.setLighting(0.5, 0.5, 0, 0); } else if (chartIndex == 2) { c.addTitle( "Flat Lighting<*br*><*size=10*>Ambient = 1, Diffuse = 0, Specular = 0, Shininess = 0" ); c.setLighting(1, 0, 0, 0); } else { c.addTitle( "Strong Glossy Lighting<*br*><*size=10*>Ambient = 0.5, Diffuse = 0.5, Specular = " + "4, Shininess = 32"); c.setLighting(0.5, 0.5, 4, 32); } // Set the center of the plot region at (175, 200), and set width x depth x height to 200 x // 200 x 160 pixels c.setPlotRegion(175, 200, 200, 200, 160); // Set the plot region wall thichness to 5 pixels c.setWallThickness(5); // Set the elevation and rotation angles to 45 and 60 degrees c.setViewAngle(45, 60); // Set the perspective level to 35 c.setPerspective(35); // Set the data to use to plot the chart c.setData(dataX, dataY, dataZ); // Spline interpolate data to a 50 x 50 grid for a smooth surface c.setInterpolation(50, 50); // Set contour lines to semi-transparent black (c0000000) c.setContourColor(unchecked((int)0xc0000000)); // Output the chart viewer.Image = c.makeWebImage(Chart.JPG); } } }```
 ```@{ Layout = null; } @ViewBag.Title