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Module: GoogleMapsAPI in Category Geospatial Mapping : Addresses and Distances from Total Visual SourceBook

Use the Google Maps web service API to translate street address to GPS latitude and longitude coordinates, and other address components using VBA or VB6.

Procedure List

Procedure Name

Type

Description

(Declarations) Declarations Declarations and private variables for the modGoogleMapsAPI module
LatitudeLongitudeFromAddress Procedure Translates an address into GPS latitude and longitude coordinates using Google Maps API web service and XML parsing
AddressType Procedure Use the Google Maps API web service and XML parsing to determine the type of a location
AddressElementArrays Procedure Use the Google Maps API web service and XML parsing to get all the components of an address and return them in arrays
AddressComponents Procedure Use the Google Maps API web service and XML parsing to get an address's primary components (some may not exist depending on the address)
GoogleGeocodeXML Procedure Get the XML return value for an address using Google Maps API web service
InvokeWebService Procedure Call a web page, pass it commands, and returns the value

Example Code for Using Module: GoogleMapsAPI

' Example of modGoogleMapsAPI
'
' To use this example, create a new module and paste this code into it.
' Then run these procedures by putting the cursor in the procedure and pressing:
'    F5 to run it, or
'    F8 to step through it line-by-line (see the Debug menu for more options)
' View the results in the immediate window.

Private Const mcstrAddressFMS As String = "8150 Leesburg Pike, Vienna, VA 22182"
Private Const mcstrAddressTest As String = "White House"
Private Const mcstrZipCode As String = "22102"
Private Const mcstrAirport As String = "IAD"        ' Dulles Aiport

Private Sub Example_LatitudeLongitudeFromAddress()
  ' Comments: Example of modGoogleMapsAPI module to get the GPS latitude and longitude for an address using the Google API in VBA and VB6.

  Dim dblLatitude As Double, dblLongitude As Double

  Debug.Print "* Address Latitude and Longitude *"

  ' Latitude and Longitude for the FMS office
  If LatitudeLongitudeFromAddress(mcstrAddressFMS, dblLatitude, dblLongitude) Then
    Debug.Print "FMS Offices", "Latitude: " & dblLatitude, "Longitude: " & dblLongitude
  End If

  ' Latitude and Longitude for the White House
  If LatitudeLongitudeFromAddress(mcstrAddressTest, dblLatitude, dblLongitude) Then
    Debug.Print mcstrAddressTest, "Latitude: " & dblLatitude, "Longitude: " & dblLongitude
  End If

  ' Latitude and Longitude for Dulles International Airport
  If LatitudeLongitudeFromAddress(mcstrAirport, dblLatitude, dblLongitude) Then
    Debug.Print mcstrAirport & " Airport", "Latitude: " & dblLatitude, "Longitude: " & dblLongitude
  End If

  ' Latitude and Longitude for Pan American Health Organization Headquarters
  If LatitudeLongitudeFromAddress("PAHO, 525 23rd Street, NW, Washington, DC 20037", dblLatitude, dblLongitude) Then
    Debug.Print "PAHO", "Latitude: " & dblLatitude, "Longitude: " & dblLongitude
  End If

  ' Latitude and Longitude for the National Archives
  If LatitudeLongitudeFromAddress("National Archives, Washington DC", dblLatitude, dblLongitude) Then
    Debug.Print "Natl Archives", "Latitude: " & dblLatitude, "Longitude: " & dblLongitude
  End If

  ' Latitude and Longitude for Microsoft Headquarters
  If LatitudeLongitudeFromAddress("Microsoft, Redmond, WA", dblLatitude, dblLongitude) Then
    Debug.Print "Microsoft", "Latitude: " & dblLatitude, "Longitude: " & dblLongitude
  End If

  ' Latitude and Longitude for China's Forbidden City
  If LatitudeLongitudeFromAddress("Forbidden City, Beijing, China", dblLatitude, dblLongitude) Then
    Debug.Print "Beijing", "Latitude: " & dblLatitude, "Longitude: " & dblLongitude
  End If

  ' Latitude and Longitude for a Country near Greenwich (0 degrees longitude)
  If LatitudeLongitudeFromAddress("United Kingdom", dblLatitude, dblLongitude) Then
    Debug.Print "UK", "Latitude: " & dblLatitude, "Longitude: " & dblLongitude
  End If

  ' Latitude and Longitude for a Country near the equator (0 degrees latitude)
  If LatitudeLongitudeFromAddress("Galapagos Islands", dblLatitude, dblLongitude) Then
    Debug.Print "Galapagos", "Latitude: " & dblLatitude, "Longitude: " & dblLongitude
  End If

  ' Latitude and Longitude for a Country near the equator (0 degrees latitude)
  If LatitudeLongitudeFromAddress("Sydney Opera House", dblLatitude, dblLongitude) Then
    Debug.Print "Australia", "Latitude: " & dblLatitude, "Longitude: " & dblLongitude
  End If

  ' Latitude and Longitude for a zip code
  If LatitudeLongitudeFromAddress(mcstrZipCode, dblLatitude, dblLongitude) Then
    Debug.Print "Zip " & mcstrZipCode, "Latitude: " & dblLatitude, "Longitude: " & dblLongitude
  End If

End Sub

Private Sub Example_AddressType()
  ' Comments: Determine the type of a location as provided by the XML file returned by the Google API in VBA and VB6.

  Dim strType As String

  Debug.Print "* Address Types *"

  ' Get the type for a standard address
  strType = AddressType(mcstrAddressFMS)
  Debug.Print "FMS Offices", strType

  ' Get the type for the name of a location
  strType = AddressType(mcstrAddressTest)
  Debug.Print mcstrAddressTest, strType

  ' Get the type for Dulles International Airport
  strType = AddressType(mcstrAirport)
  Debug.Print mcstrAirport & " Airport", strType

  ' Get the type for a US zip code
  strType = AddressType(mcstrZipCode)
  Debug.Print "Zip " & mcstrZipCode, strType

  ' Get the type for a city
  strType = AddressType("Vienna")
  Debug.Print "Vienna", strType

  ' Get the type for a state
  strType = AddressType("California")
  Debug.Print "CA", strType

  ' Get the type for a country
  strType = AddressType("United Kingdom")
  Debug.Print "UK", strType

End Sub

Private Sub Example_AddressElementArrays()
  ' Comments: Create an array of all the component parts of an address as provided by the XML file returned by the Google API in VBA and VB6.

  Dim astrTypes() As String, astrLongName() As String, astrShortName() As String
  Dim intCount As Integer

  If AddressElementArrays(mcstrAddressFMS, astrTypes(), astrLongName(), astrShortName()) Then
    Debug.Print "* Address Elements *"
    Debug.Print "Item", "Type", "Long Name", "Short Name"
    For intCount = 1 To UBound(astrTypes)
      Debug.Print intCount, astrTypes(intCount), astrLongName(intCount), astrShortName(intCount)
    Next intCount
  End If

End Sub

Private Sub Example_AddressComponents()
  ' Comments: Retrieve the basic components of an address as provided by the XML file returned by the Google API in VBA and VB6.

  Dim strStreetNumber As String, strRoute As String, strCity As String, strState As String, strPostalCode As String
  Dim strCountry As String, strCounty As String

  If AddressComponents(mcstrAddressFMS, strStreetNumber, strRoute, strCity, strState, strPostalCode, strCountry, strCounty) Then
    Debug.Print "* Address Components *"
    Debug.Print "StreetNumber", strStreetNumber
    Debug.Print "Route", strRoute
    Debug.Print "City", strCity
    Debug.Print "State", strState
    Debug.Print "PostalCode", strPostalCode
    Debug.Print "Country", strCountry
    Debug.Print "County", strCounty
  End If
End Sub

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