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handle.js
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handle.js
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var CENTRES = {
names: ["Brentwood Town Centre"],
radii: [160], // -1 if it's well-defined in google maps
zooms: [18], // higher numbers mean smaller complexes
lats: [49.268312],
longs: [-123.000469],
places: [],
printPlace: function(index) {
console.log("Name: " + CENTRES.names[index]);
console.log("Radius: " + ((CENTRES.radii == -1) ? "Doesn't matter" : CENTRES.radii[index]) + "m");
console.log("Coordinates: " + CENTRES.lats[index] + ", " + CENTRES.longs[index]);
},
EX_LATLNGBOUNDS: null
};
var PLACESTATE_UPDATED = false;
var PLACE_LIST = [];
var WEIRD_PLACES = new Map(); // places that should be manually checked. format: str => place object
var TYPE_LIST = new Map();
var cur_push_index = -1;
var CTR = 0;
var TYPE_CONV_LOOKUP = new Map(); // map pitfall: [x] = y notation does NOT put any values into .values() whereas .set(x, y) does
TYPE_CONV_LOOKUP.set("Restaurant", ["meal_delivery", "meal_takeaway", "restaurant", "cafe"]);
TYPE_CONV_LOOKUP.set("Food Store", ["convenience_store", "bakery", "food"]);
TYPE_CONV_LOOKUP.set("Drug Store", ["pharmacy", "health"]);
TYPE_CONV_LOOKUP.set("Fashion Store", ["clothing_store"]);
TYPE_CONV_LOOKUP.set("Dry Cleaners", ["laundry"]);
TYPE_CONV_LOOKUP.set("Financial Institution", ["atm", "accounting", "bank", "finance"]);
TYPE_CONV_LOOKUP.set("Insurance, Travel, Real Estate", ["real_estate_agency", "travel_agency", "insurance_agency"]);
TYPE_CONV_LOOKUP.set("Home Electronics", ["electronics_store"]);
TYPE_CONV_LOOKUP.set("Supermarket", ["grocery_or_supermarket"]);
TYPE_CONV_LOOKUP.set("Department Store", ["department_store"]);
TYPE_CONV_LOOKUP.set("Shoe Store", ["shoe_store"]);
TYPE_CONV_LOOKUP.set("Book Store", ["book_store"]);
TYPE_CONV_LOOKUP.set("Other", ["liquor_store", "bicycle_store", "hair_care", "jewelry_store", "florist", "pet_store", "movie_rental", "furniture_store", "home_goods_store", "store"]);
TYPE_CONV_LOOKUP.set("Not a store", ["shopping_mall", "gym", "rv_park", "lodging", "park", "fire_station", "hospital", "parking", "dentist", "bus_station", "school", "bar", "transit_station", "spa", "plumber", "art_gallery", "post_office", "library", "lawyer"]);
const HAVERSINE_R = 6371;
function Rad(n) {
return n * Math.PI / 180;
}
function haversineDistance(p1, p2) {
var lt1 = (p1.geometry === undefined) ? CENTRES.lats[p1] : p1.geometry.location.lat();
var lg1 = (p1.geometry === undefined) ? CENTRES.longs[p1] : p1.geometry.location.lng();
var lt2 = (p2.geometry === undefined) ? CENTRES.lats[p2] : p2.geometry.location.lat();
var lg2 = (p2.geometry === undefined) ? CENTRES.longs[p2] : p2.geometry.location.lng();
var latr = Rad(lt2 - lt1);
var lngr = Rad(lg2 - lg1);
var a = Math.sin(latr/2) * Math.sin(latr/2) + Math.cos(Rad(lt1)) * Math.cos(Rad(lt2)) * Math.sin(lngr/2) * Math.sin(lngr/2);
var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
return HAVERSINE_R * c;
}
function sortPlacesIntoLocations() {
if (PLACESTATE_UPDATED) {
PLACESTATE_UPDATED = false;
var ctr = 0;
for (var p of PLACE_LIST) {
var closest_centre = 0;
var closest_dist = haversineDistance(p, 0);
for (var i = 1; i < CENTRES.names.length; i++) {
var dist = haversineDistance(p, i);
if (dist < closest_dist) {
closest_dist = dist;
closest_centre = i;
}
}
if (CENTRES.places[closest_centre] === undefined) {
CENTRES.places[closest_centre] = [p];
} else {
CENTRES.places[closest_centre].push(p);
}
ctr++;
}
console.log("Sorted " + ctr + " places");
} else {
console.log("Nothing new to sort");
}
for (var i = 0; i < CENTRES.places.length; i++) { // deduplication
CENTRES.places[i] = CENTRES.places[i].filter((el, i, arr) => arr.map(function(p){return JSON.stringify(p).slice(0, JSON.stringify(p).indexOf('"place_id"'))}).indexOf(JSON.stringify(el).slice(0, JSON.stringify(el).indexOf('"place_id"'))) === i) // Readable!
}
}
function getPlaceIndicatorFunctions(places) { // return a map of "indicator functions" (types) sorted by count given an array of places
var weird_ctr = 0;
var typemap = new Map();
for (var p of places) {
var matched = false;
for (var type of p.types) {
for (var indf of TYPE_CONV_LOOKUP.keys()) {
if (TYPE_CONV_LOOKUP.get(indf).indexOf(type) != -1) {
if (typemap.has(indf)) {
typemap.set(indf, typemap.get(indf).concat(p.name));
} else {
typemap.set(indf, [p.name]);
}
matched = true;
break;
}
if (matched) {
break;
}
}
}
if (!matched) {
weird_ctr++;
if (WEIRD_PLACES.has(CENTRES.names[CENTRES.places.indexOf(places)])) {
WEIRD_PLACES.get(CENTRES.names[CENTRES.places.indexOf(places)]).push(p);
} else {
WEIRD_PLACES.set(CENTRES.names[CENTRES.places.indexOf(places)], [p]);
}
}
}
console.log("Sorted out " + places.length + " unique places at " + CENTRES.names[CENTRES.places.indexOf(places)] + ", " + weird_ctr + " could not be categorized.");
tl_s = []; // sort
for (var k of typemap) {
tl_s.push(k);
}
tl_s.sort(function (a, b) {
return b[1] - a[1];
});
typemap = new Map(tl_s);
for (var k of typemap.keys()) { // dedup
typemap.set(k, typemap.get(k).filter((el, i, arr) => arr.indexOf(el) === i));
}
return typemap;
}
function exportToCsv(filename, rows) { // ripped from https://stackoverflow.com/questions/14964035/how-to-export-javascript-array-info-to-csv-on-client-side
var processRow = function (row) {
var finalVal = '';
for (var j = 0; j < row.length; j++) {
var innerValue = row[j] === undefined ? '' : row[j].toString();
if (row[j] instanceof Date) {
innerValue = row[j].toLocaleString();
};
var result = innerValue.replace(/"/g, '""');
if (result.search(/("|,|\n)/g) >= 0)
result = '"' + result + '"';
if (j > 0)
finalVal += ',';
finalVal += result;
}
return finalVal + '\n';
};
var csvFile = '';
for (var i = 0; i < rows.length; i++) {
csvFile += processRow(rows[i]);
}
var blob = new Blob([csvFile], { type: 'text/csv;charset=utf-8;' });
if (navigator.msSaveBlob) { // IE 10+
navigator.msSaveBlob(blob, filename);
} else {
var link = document.createElement("a");
if (link.download !== undefined) { // feature detection
// Browsers that support HTML5 download attribute
var url = URL.createObjectURL(blob);
link.setAttribute("href", url);
link.setAttribute("download", filename);
link.style.visibility = 'hidden';
document.body.appendChild(link);
link.click();
document.body.removeChild(link);
}
}
}
function prepareData(centre) {
csv_arr = [["Centre", "Restaurant", "Food Store", "Drug Store", "Fashion Store",
"Dry Cleaners", "Financial Instution", "Insurance, Travel, Real Estate",
"Home Electronics", "Supermarket", "Department Store", "Shoe Store",
"Book Store", "Other", "Total"]];
sortPlacesIntoLocations();
if (centre === undefined) {
for (var i = 0; i < CENTRES.names.length; i++) {
var con = [];
con.push(CENTRES.names[i]);
var indmap = getPlaceIndicatorFunctions(CENTRES.places[i]);
console.log(indmap);
var total = 0;
for (var k of csv_arr[0].slice(1, csv_arr[0].length - 1)) {
if (indmap.has(k)) {
con.push("" + indmap.get(k).length);
total += indmap.get(k).length;
} else {
con.push("" + 0);
}
}
con.push("" + total);
csv_arr.push(con);
}
} else {
var con = [];
con.push(CENTRES.names[centre]);
var indmap = getPlaceIndicatorFunctions(CENTRES.places[centre]);
console.log(indmap);
var total = 0;
for (var k of csv_arr[0].slice(1, csv_arr[0].length - 1)) {
if (indmap.has(k)) {
con.push("" + indmap.get(k).length);
total += indmap.get(k).length;
} else {
con.push("" + 0);
}
}
con.push("" + total);
csv_arr.push(con);
}
console.log(csv_arr);
exportToCsv("processed.csv", csv_arr);
}
function exportWeirdPlaces() {
var arr = [];
for (var k of WEIRD_PLACES.keys()) {
arr.push([k]);
for (var pl of WEIRD_PLACES.get(k)) {
arr.push([pl.name + " at " + pl.vicinity]);
}
arr.push([]);
}
exportToCsv("weird_places.txt", arr);
}