How to create a 3D pie graph

Summary

This topic shows how to create a three-dimensional (3D) pie graph and adjust the graph's properties.

Creating a 3D pie graph

1. pathToShapeFile - The shapefile path to create the pie series.
2. seriesFieldName - The numerical field to use for creating the pie series.
3. pathToOutImage - The output file containing an image of the graph. (See the application programming interface [API] documentation for the appropriate format extension in IDataGraphBase.ExportToFile.)

[C#]

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            IAoInitialize ao=new AoInitializeClass();
            ao.Initialize(esriLicenseProductCode.esriLicenseProductCodeBasic);
            SamplePie(@"path to your shapefile", "field name", @
                "path to your output image");
            ao.Shutdown();
        }

        static void SamplePie(String pathToShapeFile, String seriesFieldName, String
            pathToOutImage)
        {

            // Open a workspace for the input shapefile.
            IWorkspaceFactory shapefileWorkspaceFactory=new
                ShapefileWorkspaceFactoryClass();
            IWorkspace shapefileWorkspace;
            shapefileWorkspace=shapefileWorkspaceFactory.OpenFromFile
                (System.IO.Path.GetDirectoryName(pathToShapeFile), 0);
            IFeatureWorkspace featureWorkspace=(IFeatureWorkspace)
                shapefileWorkspace;

            // Get the table for the input shapefile.
            ITable table=(ITable)featureWorkspace.OpenFeatureClass
                (System.IO.Path.GetFileNameWithoutExtension(pathToShapeFile));

            // Create the data graph.
            IDataGraphT dataGraphT=new DataGraphTClass();

            // Add the pie series.
            ISeriesProperties seriesProps=dataGraphT.AddSeries("pie");
            seriesProps.SourceData=table;
            seriesProps.SetField(0, seriesFieldName);

            // Set the pie properties for the first series.
            IPieSeriesProperties pieSeriesProps=(IPieSeriesProperties)seriesProps;
            pieSeriesProps.ExplodeBiggestSlice=50;

            //Set 3D graph mode.
            dataGraphT.GeneralProperties.Show3D=true;

            // Update the data graph.
            dataGraphT.Update(null);

            // Export the graph to file (the format depends on the file extension).
            dataGraphT.ExportToFile(pathToOutImage);
        }
    }
}

[VB.NET]

Namespace ConsoleApplication1VBNET

Class Program
    Shared Sub Main(ByVal args() As String)
    Dim ao As IAoInitialize=New AoInitializeClass()
    ao.Initialize(esriLicenseProductCode.esriLicenseProductCodeBasic)
    SamplePie("path to your shapefile", "field name", "path to your output image")
    ao.Shutdown()
End Sub

Shared Sub SamplePie(ByVal pathToShapeFile As String, ByVal seriesFieldName As String, ByVal pathToOutImage As String)

' Open a workspace for the input shapefile.
Dim shapefileWorkspaceFactory As IWorkspaceFactory=New ShapefileWorkspaceFactoryClass()
Dim shapefileWorkspace As IWorkspace
shapefileWorkspace=shapefileWorkspaceFactory.OpenFromFile(System.IO.Path.GetDirectoryName(pathToShapeFile), 0)
Dim featureWorkspace As IFeatureWorkspace=CType(shapefileWorkspace, IFeatureWorkspace)

' Get the table for the input shapefile.
Dim table As ITable=CType(featureWorkspace.OpenFeatureClass(System.IO.Path.GetFileNameWithoutExtension(pathToShapeFile)), ITable)

' Create the data graph.
Dim dataGraphT As IDataGraphT=New DataGraphTClass()

' Add the pie series.
Dim seriesProps As ISeriesProperties=dataGraphT.AddSeries("pie")
seriesProps.SourceData=table
seriesProps.SetField(0, seriesFieldName)

' Set the pie properties for the first series.
Dim pieSeriesProps As IPieSeriesProperties=CType(seriesProps, IPieSeriesProperties)
pieSeriesProps.ExplodeBiggestSlice=50

'Set 3D graph mode.
dataGraphT.GeneralProperties.Show3D=True

' Update the data graph.
dataGraphT.Update(Nothing)

' Export the graph to file (the format depends on the file extension).
dataGraphT.ExportToFile(pathToOutImage)
End Sub

End Class

End Namespace

---

To use the code in this topic, reference the following assemblies in your Visual Studio project. In the code files, you will need using (C#) or Imports (VB .NET) directives for the corresponding namespaces (given in parenthesis below if different from the assembly name):

• ESRI.ArcGIS.System (ESRI.ArcGIS.esriSystem)
• ESRI.ArcGIS.Geodatabase
• ESRI.ArcGIS.DataSourcesFile
• ESRI.ArcGIS.Catalog
• ESRI.ArcGIS.Display
• ESRI.ArcGIS.Carto
• ESRI.ArcGIS.CartoUI
• System
• System.Collections.Generic
• System.Text

Development licensing	Deployment licensing
ArcGIS Desktop Basic	ArcGIS Desktop Basic
ArcGIS Desktop Standard	ArcGIS Desktop Standard
ArcGIS Desktop Advanced	ArcGIS Desktop Advanced