CreatePieMap

The CreatePieMap method creates a pie map. Pie map properties are edited through the returned PieMap object.

Syntax

Object.CreatePieMap( pVarCols, BoundaryFileName, DataFileName, DataTableName, BoundaryFileOptions, PIDCol )

Parameter	Type	Description
pVarCols	Array of Longs	required; array of data columns
BoundaryFileName	String	optional; boundary file name
DataFileName	String	optional; data file name
DataTableName	String	optional; table name if a database file is used
BoundaryFileOptions	String	optional; see Boundary File Options
PIDCol	Integer	optional; primary ID column, column A equals 1

Remarks

VB users can use ReDim to set the array size to the used size if necessary or use CreatePieMap2.

Example

This example creates a pie map of Colorado.

Sub main

'Creates an instance of the MapViewer Application object

'and assigns it to the variable named "mvApp"

Set mvApp = CreateObject("MapViewer.Application")

'Makes the application main window visible

mvApp.Visible = True

'Assigns the location of the samples folder to the variable "InPath"

InPath$ = mvApp.ApplicationFolder + " samples\"

'Creates a map document object, and assigns it to the variable named "Plot"

Set Plot = mvApp.Documents.Add(DocType:=mvDocPlot)

'Defines the variables for a pie map

Dim Variables(1 To 3) As Long

Variables(1) = 4

Variables(2) = 8

Variables(3) = 6

'Creates a pie map object and assigns it to the variable named "PieMap"

Set PieMap = Plot.CreatePieMap( Variables, BoundaryFileName:=InPath$ + _

"co2010.gsb", DataFileName:=InPath$ + "co2010.dat", BoundaryFileOptions:= _

"SecondaryIDField=2, Attribute1Field=1", PIDCol:=1 )

End Sub