ChartDirector 7.1 (.NET Edition)

3D Shadow Mode


      

This example demonstrates an alternative 3D drawing method that uses shadows.

The standard way to draw a pie chart in 3D is to view the chart from an inclined angle. Using this method, the surface of a 3D pie will become an ellipse.

ChartDirector supports an alternative way to draw a pie chart in 3D - to draw the 3D portion like a shadow. The 3D pie will remain perfectly circular, and the sector areas will correctly reflect its percentages.

The 3D drawing method is configured using PieChart.set3D.

Source Code Listing

[Windows Forms - C# version] NetWinCharts\CSharpWinCharts\shadowpie.cs
using System; using ChartDirector; namespace CSharpChartExplorer { public class shadowpie : DemoModule { //Name of demo module public string getName() { return "3D Shadow Mode"; } //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 tilt angle of the pie int angle = chartIndex * 90 + 45; // The data for the pie chart double[] data = {25, 18, 15, 12, 8, 30, 35}; // The labels for the pie chart string[] labels = {"Labor", "Licenses", "Taxes", "Legal", "Insurance", "Facilities", "Production"}; // Create a PieChart object of size 110 x 110 pixels PieChart c = new PieChart(110, 110); // Set the center of the pie at (50, 55) and the radius to 36 pixels c.setPieSize(55, 55, 36); // Set the depth, tilt angle and 3D mode of the 3D pie (-1 means auto depth, "true" // means the 3D effect is in shadow mode) c.set3D(-1, angle, true); // Add a title showing the shadow angle c.addTitle("Shadow @ " + angle + " deg", "Arial", 8); // Set the pie data c.setData(data, labels); // Disable the sector labels by setting the color to Transparent c.setLabelStyle("", 8, Chart.Transparent); // Output the chart viewer.Chart = c; //include tool tip for the chart viewer.ImageMap = c.getHTMLImageMap("clickable", "", "title='{label}: US${value}K ({percent}%)'"); } } }

[Windows Forms - VB Version] NetWinCharts\VBNetWinCharts\shadowpie.vb
Imports System Imports Microsoft.VisualBasic Imports ChartDirector Public Class shadowpie Implements DemoModule 'Name of demo module Public Function getName() As String Implements DemoModule.getName Return "3D Shadow Mode" 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 tilt angle of the pie Dim angle As Integer = chartIndex * 90 + 45 ' The data for the pie chart Dim data() As Double = {25, 18, 15, 12, 8, 30, 35} ' The labels for the pie chart Dim labels() As String = {"Labor", "Licenses", "Taxes", "Legal", "Insurance", _ "Facilities", "Production"} ' Create a PieChart object of size 110 x 110 pixels Dim c As PieChart = New PieChart(110, 110) ' Set the center of the pie at (50, 55) and the radius to 36 pixels c.setPieSize(55, 55, 36) ' Set the depth, tilt angle and 3D mode of the 3D pie (-1 means auto depth, "true" means the ' 3D effect is in shadow mode) c.set3D(-1, angle, True) ' Add a title showing the shadow angle c.addTitle("Shadow @ " & angle & " deg", "Arial", 8) ' Set the pie data c.setData(data, labels) ' Disable the sector labels by setting the color to Transparent c.setLabelStyle("", 8, Chart.Transparent) ' Output the chart viewer.Chart = c 'include tool tip for the chart viewer.ImageMap = c.getHTMLImageMap("clickable", "", _ "title='{label}: US${value}K ({percent}%)'") End Sub End Class

[WPF - C#] NetWPFCharts\CSharpWPFCharts\shadowpie.cs
using System; using ChartDirector; namespace CSharpWPFCharts { public class shadowpie : DemoModule { //Name of demo module public string getName() { return "3D Shadow Mode"; } //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 tilt angle of the pie int angle = chartIndex * 90 + 45; // The data for the pie chart double[] data = {25, 18, 15, 12, 8, 30, 35}; // The labels for the pie chart string[] labels = {"Labor", "Licenses", "Taxes", "Legal", "Insurance", "Facilities", "Production"}; // Create a PieChart object of size 110 x 110 pixels PieChart c = new PieChart(110, 110); // Set the center of the pie at (50, 55) and the radius to 36 pixels c.setPieSize(55, 55, 36); // Set the depth, tilt angle and 3D mode of the 3D pie (-1 means auto depth, "true" // means the 3D effect is in shadow mode) c.set3D(-1, angle, true); // Add a title showing the shadow angle c.addTitle("Shadow @ " + angle + " deg", "Arial", 8); // Set the pie data c.setData(data, labels); // Disable the sector labels by setting the color to Transparent c.setLabelStyle("", 8, Chart.Transparent); // Output the chart viewer.Chart = c; //include tool tip for the chart viewer.ImageMap = c.getHTMLImageMap("clickable", "", "title='{label}: US${value}K ({percent}%)'"); } } }

[ASP.NET Web Forms - C# version] NetWebCharts\CSharpASP\shadowpie.aspx
(Click here on how to convert this code to code-behind style.)
<%@ Page Language="C#" Debug="true" %> <%@ Import Namespace="ChartDirector" %> <%@ Register TagPrefix="chart" Namespace="ChartDirector" Assembly="netchartdir" %> <!DOCTYPE html> <script runat="server"> // // Create chart // protected void createChart(WebChartViewer viewer, int chartIndex) { // the tilt angle of the pie int angle = chartIndex * 90 + 45; // The data for the pie chart double[] data = {25, 18, 15, 12, 8, 30, 35}; // The labels for the pie chart string[] labels = {"Labor", "Licenses", "Taxes", "Legal", "Insurance", "Facilities", "Production"}; // Create a PieChart object of size 110 x 110 pixels PieChart c = new PieChart(110, 110); // Set the center of the pie at (50, 55) and the radius to 36 pixels c.setPieSize(55, 55, 36); // Set the depth, tilt angle and 3D mode of the 3D pie (-1 means auto depth, "true" means the 3D // effect is in shadow mode) c.set3D(-1, angle, true); // Add a title showing the shadow angle c.addTitle("Shadow @ " + angle + " deg", "Arial", 8); // Set the pie data c.setData(data, labels); // Disable the sector labels by setting the color to Transparent c.setLabelStyle("", 8, Chart.Transparent); // Output the chart viewer.Image = c.makeWebImage(Chart.SVG); // Include tool tip for the chart viewer.ImageMap = c.getHTMLImageMap("", "", "title='{label}: US${value}K ({percent}%)'"); } // // Page Load event handler // protected void Page_Load(object sender, EventArgs e) { createChart(WebChartViewer0, 0); createChart(WebChartViewer1, 1); createChart(WebChartViewer2, 2); createChart(WebChartViewer3, 3); } </script> <html> <head> <script type="text/javascript" src="cdjcv.js"></script> </head> <body> <chart:WebChartViewer id="WebChartViewer0" runat="server" /> <chart:WebChartViewer id="WebChartViewer1" runat="server" /> <chart:WebChartViewer id="WebChartViewer2" runat="server" /> <chart:WebChartViewer id="WebChartViewer3" runat="server" /> </body> </html>

[ASP.NET Web Forms - VB Version] NetWebCharts\VBNetASP\shadowpie.aspx
(Click here on how to convert this code to code-behind style.)
<%@ Page Language="VB" Debug="true" %> <%@ Import Namespace="ChartDirector" %> <%@ Register TagPrefix="chart" Namespace="ChartDirector" Assembly="netchartdir" %> <!DOCTYPE html> <script runat="server"> ' ' Create chart ' Protected Sub createChart(viewer As WebChartViewer, chartIndex As Integer) ' the tilt angle of the pie Dim angle As Integer = chartIndex * 90 + 45 ' The data for the pie chart Dim data() As Double = {25, 18, 15, 12, 8, 30, 35} ' The labels for the pie chart Dim labels() As String = {"Labor", "Licenses", "Taxes", "Legal", "Insurance", "Facilities", _ "Production"} ' Create a PieChart object of size 110 x 110 pixels Dim c As PieChart = New PieChart(110, 110) ' Set the center of the pie at (50, 55) and the radius to 36 pixels c.setPieSize(55, 55, 36) ' Set the depth, tilt angle and 3D mode of the 3D pie (-1 means auto depth, "true" means the 3D ' effect is in shadow mode) c.set3D(-1, angle, True) ' Add a title showing the shadow angle c.addTitle("Shadow @ " & angle & " deg", "Arial", 8) ' Set the pie data c.setData(data, labels) ' Disable the sector labels by setting the color to Transparent c.setLabelStyle("", 8, Chart.Transparent) ' Output the chart viewer.Image = c.makeWebImage(Chart.SVG) ' Include tool tip for the chart viewer.ImageMap = c.getHTMLImageMap("", "", "title='{label}: US${value}K ({percent}%)'") End Sub ' ' Page Load event handler ' Protected Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) createChart(WebChartViewer0, 0) createChart(WebChartViewer1, 1) createChart(WebChartViewer2, 2) createChart(WebChartViewer3, 3) End Sub </script> <html> <head> <script type="text/javascript" src="cdjcv.js"></script> </head> <body> <chart:WebChartViewer id="WebChartViewer0" runat="server" /> <chart:WebChartViewer id="WebChartViewer1" runat="server" /> <chart:WebChartViewer id="WebChartViewer2" runat="server" /> <chart:WebChartViewer id="WebChartViewer3" runat="server" /> </body> </html>

[ASP.NET MVC - Controller] NetMvcCharts\Controllers\ShadowpieController.cs
using System; using System.Web.Mvc; using ChartDirector; namespace NetMvcCharts.Controllers { public class ShadowpieController : Controller { // // Default Action // public ActionResult Index() { ViewBag.Title = "3D Shadow Mode"; // 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 tilt angle of the pie int angle = chartIndex * 90 + 45; // The data for the pie chart double[] data = {25, 18, 15, 12, 8, 30, 35}; // The labels for the pie chart string[] labels = {"Labor", "Licenses", "Taxes", "Legal", "Insurance", "Facilities", "Production"}; // Create a PieChart object of size 110 x 110 pixels PieChart c = new PieChart(110, 110); // Set the center of the pie at (50, 55) and the radius to 36 pixels c.setPieSize(55, 55, 36); // Set the depth, tilt angle and 3D mode of the 3D pie (-1 means auto depth, "true" means the // 3D effect is in shadow mode) c.set3D(-1, angle, true); // Add a title showing the shadow angle c.addTitle("Shadow @ " + angle + " deg", "Arial", 8); // Set the pie data c.setData(data, labels); // Disable the sector labels by setting the color to Transparent c.setLabelStyle("", 8, Chart.Transparent); // Output the chart viewer.Image = c.makeWebImage(Chart.SVG); // Include tool tip for the chart viewer.ImageMap = c.getHTMLImageMap("", "", "title='{label}: US${value}K ({percent}%)'"); } } }

[ASP.NET MVC - View] NetMvcCharts\Views\Shared\ChartView.cshtml
@{ Layout = null; } <!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width" /> <title>@ViewBag.Title</title> <style> @ViewBag.Style </style> @Scripts.Render("~/Scripts/cdjcv.js") </head> <body style="margin:5px 0px 0px 5px"> <div style="font:bold 18pt verdana;"> @ViewBag.Title </div> <hr style="border:solid 1px #000080; background:#000080" /> <div> @{ if (ViewBag.Viewer is Array) { // Display multiple charts for (int i = 0; i < ViewBag.Viewer.Length; ++i) { @:@Html.Raw(ViewBag.Viewer[i].RenderHTML()) } } else { // Display one chart only @:@Html.Raw(ViewBag.Viewer.RenderHTML()) } } </div> </body> </html>