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geocoder-census-google.gs
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geocoder-census-google.gs
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var ui = SpreadsheetApp.getUi();
var addressColumn = 1;
var latColumn = 2;
var lngColumn = 3;
var foundAddressColumn = 4;
var qualityColumn = 5;
var sourceColumn = 6;
googleGeocoder = Maps.newGeocoder().setRegion(
PropertiesService.getDocumentProperties().getProperty('GEOCODING_REGION') || 'us'
);
function geocode(source) {
var sheet = SpreadsheetApp.getActiveSheet();
var cells = sheet.getActiveRange();
if (cells.getNumColumns() != 6) {
ui.alert(
'Warning',
'You must select 6 columns: Location, Latitude, Longitude, Found, Quality, Source',
ui.ButtonSet.OK
);
return;
}
var nAll = 0;
var nFailure = 0;
var quality;
var printComplete = true;
for (addressRow = 1; addressRow <= cells.getNumRows(); addressRow++) {
var address = cells.getCell(addressRow, addressColumn).getValue();
if (!address) {continue}
nAll++;
if (source == 'US Census') {
nFailure += withUSCensus(cells, addressRow, address);
} else {
nFailure += withGoogle(cells, addressRow, address);
}
}
if (printComplete) {
ui.alert('Completed!', 'Geocoded: ' + (nAll - nFailure)
+ '\nFailed: ' + nFailure, ui.ButtonSet.OK);
}
}
/**
* Geocode address with Google Apps https://developers.google.com/apps-script/reference/maps/geocoder
*/
function withGoogle(cells, row, address) {
location = googleGeocoder.geocode(address);
if (location.status !== 'OK') {
insertDataIntoSheet(cells, row, [
[foundAddressColumn, ''],
[latColumn, ''],
[lngColumn, ''],
[qualityColumn, 'No Match'],
[sourceColumn, 'Google']
]);
return 1;
}
lat = location['results'][0]['geometry']['location']['lat'];
lng = location['results'][0]['geometry']['location']['lng'];
foundAddress = location['results'][0]['formatted_address'];
var quality;
if (location['results'][0]['partial_match']) {
quality = 'Partial Match';
} else {
quality = 'Match';
}
insertDataIntoSheet(cells, row, [
[foundAddressColumn, foundAddress],
[latColumn, lat],
[lngColumn, lng],
[qualityColumn, quality],
[sourceColumn, 'Google']
]);
return 0;
}
/**
* Geocoding with US Census Geocoder https://geocoding.geo.census.gov/geocoder/
*/
function withUSCensus(cells, row, address) {
var url = 'https://geocoding.geo.census.gov/'
+ 'geocoder/locations/onelineaddress?address='
+ encodeURIComponent(address)
+ '&benchmark=Public_AR_Current&format=json';
var response = JSON.parse(UrlFetchApp.fetch(url));
var matches = (response.result.addressMatches.length > 0) ? 'Match' : 'No Match';
if (matches !== 'Match') {
insertDataIntoSheet(cells, row, [
[foundAddressColumn, ''],
[latColumn, ''],
[lngColumn, ''],
[qualityColumn, 'No Match'],
[sourceColumn, 'US Census']
]);
return 1;
}
var z = response.result.addressMatches[0];
var quality;
if (address.toLowerCase().replace(/[,\']/g, '') ==
z.matchedAddress.toLowerCase().replace(/[,\']/g, '')) {
quality = 'Exact';
} else {
quality = 'Match';
}
insertDataIntoSheet(cells, row, [
[foundAddressColumn, z.matchedAddress],
[latColumn, z.coordinates.y],
[lngColumn, z.coordinates.x],
[qualityColumn, quality],
[sourceColumn, 'US Census']
]);
return 0;
}
/**
* Sets cells from a 'row' to values in data
*/
function insertDataIntoSheet(cells, row, data) {
for (d in data) {
cells.getCell(row, data[d][0]).setValue(data[d][1]);
}
}
function censusAddressToPosition() {
geocode('US Census');
}
function googleAddressToPosition() {
geocode('Google');
}
function onOpen(e) {
ui.createMenu('Geocoder')
.addItem('with US Census', 'censusAddressToPosition')
.addItem('with Google (limit 1000 per day)', 'googleAddressToPosition')
.addToUi();
}
function onInstall(e) {
onOpen(e);
}