CreateSymbolMap

The CreateSymbolMap method creates a symbol map. The symbol map properties are edited through the returned SymbolMap object.

Syntax

object.CreateSymbolMap( BoundaryFileName, DataFileName, DataTableName, BoundaryFileOptions, PIDCol, VarCol )

Parameter	Type	Description
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
VarCol	Integer	optional; variable column, column A equals 1

Example

This example creates a symbol map of California.

Sub Main

'Declare the variable that will reference the application

Dim mvapp As Object

'Creates an instance of the MapViewer Application object

' and assigns it to the variable named "mvapp"

Set mvapp = CreateObject("MapViewer.Application")

'Make MapViewer visible

mvapp.Visible = True

'Declare Plot as Object

Dim Plot As Object

'Creates a new map window

Set Plot = mvapp.Documents.Add(mvDocPlot)

'Declare SymbolMap as object

Dim DensityMap As Object

'Create a symbol map

Set SymbolMap= Plot.CreateSymbolMap(BoundaryFileName:= _

mvapp.ApplicationFolder + "\Samples\ca2010.gsb", DataFileName:= _

mvapp.ApplicationFolder + "\Samples\ca2010.dat", _

BoundaryFileOptions:="AreasToCurves=0", PIDCol:=1, VarCol:=3)

End Sub