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I'm planning to use google map "containsLocation()" API in one of my application. The doc link is - https://goo.gl/4BFHCz
I'm following the same example. Here is my code.
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<title>Polygon arrays</title>
<style>
html, body {
height: 100%;
margin: 0;
padding: 0;
}
#map {
height: 100%;
}
</style>
</head>
<body>
<div id="map"></div>
<script>
// This example requires the Geometry library. Include the libraries=geometry
// parameter when you first load the API. For example:
// <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=geometry">
function initMap() {
var map = new google.maps.Map(document.getElementById('map'), {
//center: {lat: 24.886, lng: -70.269},
center: {lat: 12.9629277, lng: 77.7178972},
zoom: 30,
});
/*var triangleCoords = [
{lat: 25.774, lng: -80.19},
{lat: 18.466, lng: -66.118},
{lat: 32.321, lng: -64.757}
];*/
var triangleCoords = [
{lat: 12.96301273, lng: 77.71785952},
{lat: 12.96314857, lng: 77.71784072},
{lat: 12.96316124, lng: 77.71784037},
{lat: 12.96295465, lng: 77.71788993},
{lat: 12.96293329, lng: 77.7179345},
];
var bermudaTriangle = new google.maps.Polygon({paths: triangleCoords});
google.maps.event.addListener(map, 'click', function(e) {
var curPosition = {"lat":12.9629277,"lng":77.7178972};
//var curPosition = e.latLng;
console.log("e content : "+JSON.stringify(e.latLng));
console.log("curPosition content : "+JSON.stringify(curPosition));
var resultColor =
google.maps.geometry.poly.containsLocation(curPosition, bermudaTriangle) ?
'red' :
'green';
new google.maps.Marker({
position: curPosition,
map: map,
icon: {
path: google.maps.SymbolPath.CIRCLE,
fillColor: resultColor,
fillOpacity: .2,
strokeColor: 'white',
strokeWeight: .5,
scale: 10
}
});
});
}
</script>
<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCiAur6ANJsV776iVmMDJcHYjQkXrXyu8s&libraries=geometry&callback=initMap"
async defer></script>
</body>
</html>
If you see I've created a curPosition variable which holds the latLng data. My problem at here is as long as var curPosition = e.latLng; it works fine but, the moment I changed that to var curPosition = {"lat":12.9629277,"lng":77.7178972}; it's started showing error "Uncaught TypeError: a.lng is not a function".
Can't able to understand why it's happening? Any clue...?
Console.log screen shot attached
Regards
218
Honestly, the initMap is not a function error is one of the most common mistakes Web Developers make when trying to build an interesting Map-Style, Side-Project Application (i.e. Zillow) using Vanilla JavaScript or JavaScript Framework/Library like Angular, Vue or React. Before fixing an error, you need to know why it occurs at the first place.
If we need to add roads to Google Maps or something on the map isn’t right, you can tell us. Learn more about adding or fixing a road here. You can report businesses or the names of places for impersonation or offensive, fake, spam, or inappropriate content. Tip: For legal issues, such as copyright or trademark disputes, submit a report.
The initMap is a callback function; It’s the function that will be executed after the Google Maps API Asynchronous Script loads. How to fix the initMap is not a function error? Well, there are many reasons why you get this error, and here’s a list of the most common 3 reasons, and an insight to fix it if matched any reason:
Remove an incorrect or fraudulent listing 1 Open Google Maps . 2 Find the place you want to flag for review. 3 Select the place Suggest an edit Remove this place. 4 Choose the reason the place should be removed. 5 Select Submit.
the containsLocation method requires a google.maps.LatLng as the "point" (at least at present), you can't use a google.maps.LatLngLiteral for currentLocation.
from the documentation:
containsLocation(point:LatLng, polygon:Polygon) | Return Value: boolean
Computes whether the given point lies inside the specified polygon.
var curPosition = new google.maps.LatLng(12.9629277,77.7178972);
code snippet:
function initMap() {
var map = new google.maps.Map(document.getElementById('map'), {
center: {
lat: 12.9629277,
lng: 77.7178972
},
zoom: 30,
});
var triangleCoords = [
{lat: 12.96301273,lng: 77.71785952}, {lat: 12.96314857, lng: 77.71784072}, {lat: 12.96316124, lng: 77.71784037}, {lat: 12.96293329, lng: 77.7179345}, {lat: 12.96295465, lng: 77.71788993}];
var bermudaTriangle = new google.maps.Polygon({
paths: triangleCoords,
map: map
});
var curPosition = new google.maps.LatLng(12.9629277, 77.7178972);
console.log("curPosition content : " + JSON.stringify(curPosition));
var resultColor =
google.maps.geometry.poly.containsLocation(curPosition, bermudaTriangle) ?
'red' :
'green';
new google.maps.Marker({
position: curPosition,
map: map,
icon: {
path: google.maps.SymbolPath.CIRCLE,
fillColor: resultColor,
fillOpacity: .2,
strokeColor: 'white',
strokeWeight: .5,
scale: 10
}
});
var curPositionB = new google.maps.LatLng(12.963, 77.71788993);
var resultColorB = google.maps.geometry.poly.containsLocation(curPositionB, bermudaTriangle) ?
'red' :
'green';
new google.maps.Marker({
position: curPositionB,
map: map,
icon: {
path: google.maps.SymbolPath.CIRCLE,
fillColor: resultColorB,
fillOpacity: .2,
strokeColor: 'white',
strokeWeight: .5,
scale: 10
}
});
}
google.maps.event.addDomListener(window, 'load', initMap);html,
body {
height: 100%;
margin: 0;
padding: 0;
}
#map {
height: 100%;
}<script src="https://maps.googleapis.com/maps/api/js?libraries=geometry&key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk"></script>
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