CreateDensityMap

The CreateDensityMap method creates a density map. The density map properties can be edited through the returned DensityMap object.

Syntax

object.CreateDensityMap( 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 density map of Texas.

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 DensityMap as object

Dim DensityMap As Object

'Create a density map

Set DensityMap= Plot.CreateDensityMap(BoundaryFileName:= _

mvapp.ApplicationFolder + "\Samples\tx2010.gsb", DataFileName:= _

mvapp.ApplicationFolder + "\Samples\tx2010.dat", _

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

End Sub