I have a coordinate and I need to get the streets name that are between this point.
For example, I get the point "Manuela Pedraza 3050" (or geolocation, doesn't matter) and I need to retrieve the values "Zapiola" and "Conesa".
Is this possible?
Concept:
Note that the analysis below depends on the text in the instructions
returned by the directions service. As written it will only work for English and not necessarily everywhere. That said, it does currently seem to work for your area of interest as well as Palo Alto CA and New York NY.
code snippet:
var geocoder;
var map;
function initialize() {
var pointOfInterest = new google.maps.LatLng(-34.5548, -58.4720282);
// var pointOfInterest = new google.maps.LatLng(37.439913,-122.141229);
// var pointOfInterest = new google.maps.LatLng(40.715898,-74.006843);
map = new google.maps.Map(
document.getElementById("map_canvas"), {
center: pointOfInterest,
zoom: 18,
mapTypeId: google.maps.MapTypeId.ROADMAP
});
var marker = new google.maps.Marker({
position: pointOfInterest,
map: map
})
geocoder = new google.maps.Geocoder();
// "Manuela Pedraza 3050, C1429CCX CABA, Argentina"
var circlePts = drawCircle(pointOfInterest, 100, 1);
var maneuverArray = [];
var results = 0;
for (var i = 0; i < circlePts.length; i++) {
var mark = new google.maps.Marker({
position: circlePts[i],
map: map,
icon: {
url: "https://maps.gstatic.com/intl/en_us/mapfiles/markers2/measle.png",
size: new google.maps.Size(7, 7),
anchor: new google.maps.Point(3.5, 3.5)
}
});
var ds = new google.maps.DirectionsService();
var request = {
origin: pointOfInterest,
destination: circlePts[i],
travelMode: google.maps.TravelMode.WALKING
}
ds.route(request, function(result, status) {
results++;
if (status == google.maps.DirectionsStatus.OK) {
var dr = new google.maps.DirectionsRenderer({
map: map,
preserveViewport: true
});
dr.setDirections(result);
var distance = 0;
for (var j = 0; j < result.routes[0].legs.length; j++) {
for (var k = 0; k < result.routes[0].legs[j].steps.length; k++) {
if (result.routes[0].legs[j].steps[k].distance.value) {
distance += result.routes[0].legs[j].steps[k].distance.value;
}
console.log("leg:" + j + " step:" + k + " dist=" + distance + " manuever:" + result.routes[0].legs[j].steps[k].maneuver);
maneuverArray.push({
manuever: result.routes[0].legs[j].steps[k].maneuver,
distance: distance,
step: result.routes[0].legs[j].steps[k]
});
}
}
} else {
alert("directions request failed:" + status);
}
if (results == circlePts.length) {
analyzeResults(maneuverArray);
}
});
}
}
function analyzeResults(maneuverArray) {
maneuverArray.sort(function(a, b) {
return (a.distance - b.distance)
});
var crossStreet = [];
for (var i = 0; i < maneuverArray.length; i++) {
if (maneuverArray[i].maneuver != "") {
crossStreet.push(maneuverArray[i].step);
}
}
// only unique points
var uniqueXstreets = [];
for (i = 0; i < crossStreet.length; i++) {
var j = 0;
for (; j < uniqueXstreets.length; j++) {
if (google.maps.geometry.spherical.computeDistanceBetween(crossStreet[i].end_location, uniqueXstreets[j].end_location) < 1) break;
uniqueXstreets.push(maneuverArray[i].step);
var mark = new google.maps.Marker({
map: map,
position: maneuverArray[i].step.end_location,
title: "xstreet " + i + " " + maneuverArray[i].step.maneuver
});
}
if (j == uniqueXstreets.length) {
uniqueXstreets.push(maneuverArray[i].step);
var mark = new google.maps.Marker({
map: map,
position: maneuverArray[i].step.end_location,
title: "xstreet " + i
});
}
if (uniqueXstreets.length == 4) break;
}
var xStreetMap = {};
for (i = 0; i < uniqueXstreets.length; i++) {
// document.getElementById('maneuver').innerHTML += uniqueXstreets[i].instructions + "<br>";
var xStreet = uniqueXstreets[i].instructions.substr(uniqueXstreets[i].instructions.indexOf("toward") + "toward".length + 1);
if (!xStreetMap[xStreet]) {
document.getElementById('maneuver').innerHTML += xStreet + "<br>";
console.log("[" + i + "]:" + uniqueXstreets[i].end_location.toUrlValue(6));
xStreetMap[xStreet] = xStreet;
}
}
}
google.maps.event.addDomListener(window, "load", initialize);
function drawCircle(point, radius, dir) {
var d2r = Math.PI / 180; // degrees to radians
var r2d = 180 / Math.PI; // radians to degrees
var earthsradius = 6.371e6; // 6.371e6 is the radius of the earth in meters
var points = 8;
// find the radius in lat/lon
var rlat = (radius / earthsradius) * r2d;
var rlng = rlat / Math.cos(point.lat() * d2r);
var extp = new Array();
if (dir == 1) {
var start = 0;
var end = points + 1
} // one extra here makes sure we connect the
else {
var start = points + 1;
var end = 0
}
for (var i = start;
(dir == 1 ? i < end : i > end); i = i + dir) {
var theta = Math.PI * (i / (points / 2));
ey = point.lng() + (rlng * Math.cos(theta)); // center a + radius x * cos(theta)
ex = point.lat() + (rlat * Math.sin(theta)); // center b + radius y * sin(theta)
extp.push(new google.maps.LatLng(ex, ey));
// bounds.extend(extp[extp.length - 1]);
}
// alert(extp.length);
return extp;
}
html,
body,
#map_canvas {
height: 100%;
width: 100%;
margin: 0px;
padding: 0px
}
<script src="https://maps.googleapis.com/maps/api/js?libraries=geometry&key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk"></script>
<h3>Cross Streets</h3>
<div id="maneuver"></div>
<div id="crossStreets"></div>
<div id="map_canvas"></div>