Am I in the city? If not, where am I?

Service Description: You're writing an app and need to determine if what jurisidiction the user is in. The CLV GIS Web APIs can help with that by following a few short steps.

Geocode an address or parcel

Using any geocoding service will convert the address or cross/streets you looking for into Lat/Lng coordinates that the parcel data service will understand. The CLV GIS geocoder service takes the following parameters:

• address
  (address format: [address], [city], [state])
  (cross street format: [street 1] + [street2], [city], [state]
• latlng (format: ([lat],[lng])
• crossstreets (format: 'Y' or 'N')
• score (optional-default is 50)
• format (optional-default is 'xml')
• jsonCallback (optional - only used if format is json)

And it can return the following fields (the Lat/Lng you need is underlined):

• errormsg (returns error description when validation fails)
• latlng(returns geocode coordinates)
• score (returns minimum score used to filter results)
• streetno (optional: returns street number for address found)
• streetname (optional: returns street name for address found
• street1 (optional: returns first cross street found)
• street2 (optional: returns second cross street found)
• city (returns city for address found)
• state (returns state for address found)
• zip (returns zip for address found)

You can request the return information as XML (the default if you don't choose one) or JSON:

• xml (default)
• json

You can access this service at this URL: http://clvplaces.appspot.com/maptools/rest/services/geocode

Example with single response returned:
http://clvplaces.appspot.com/maptools/rest/services/geocode?address=495 S Main St, Las Vegas, NV&score=50&format=json&jsonCallback=anyLibrary.anyfunction

Example with multiple reponses returned:
http://clvplaces.appspot.com/maptools/rest/services/geocode?address=330 Valley View Blvd, Las Vegas, NV&score=50&format=json&jsonCallback=anyLibrary.anyfunction

Example with cross streets returned:
http://clvplaces.appspot.com/maptools/rest/services/geocode?address=Alta Dr and Rancho Dr, Las Vegas, NV&score=50&format=json&jsonCallback=anyLibrary.anyfunction&crossstreets=Y

Determine what jurisdiction that Lat/Lng is in

The parcel data service takes any Lat/Lng and returns city parcel information that corresponds to that location. The CLV GIS parcel data service takes the following parameters

• latlng - ex., (36.167352999999999,-115.148408)
OR
• parcel - ex., 13934201022
OR
• owner name - ex., 'City of Las Vegas'
• jsonCallback (optional)

And it can return the following fields (the PLACE you need is underlined):

• PARCEL - returns 11-digit parcel number
• PLACE - returns place name corresponding to jurisdiction
• WARD - returns ward parcel is completely within
• OWNER - returns parcel owner name
• ADDRESS1 - returns parcel mailing address 1
• ADDRESS2 - returns parcel mailing address 2
• ADDRESS3 - returns parcel mailing address 3
• ADDRESS4 - returns parcel mailing address 4
• ADDRESS5 - returns parcel mailing address 5
• STRNO - returns physical parcel street number
• STRDIR - returns physical parcel street direction (E/W/N/S)
• STRNAME - returns physical parcel street name
• STRTYPE - returns physical parcel street type
• ZIP - returns physical zip code parcel resides
• TAXDIST - returns local tax district (same as jurisdiction) that parcel resides in
• ZONING - returns current zoning for the parcel

You can request the return information as JSON only at this time:

• json

Example: Find the parcel data for City Hall using lat/lng
http://clvplaces.appspot.com/maptools/rest/services/agsquery?latlng=(36.167352999999999,-115.148408)&jsonCallback=anylibrary.anyFunction

Putting it all together

1. Geocode an address, converting it to Lat/Lng
2. Using the Lat/Lng, query the parcel data service for information on that location
3. Retrieve the PLACE returned from the parcel data service
4. You just found out if your in the city or not!