How can I check the marker is or isn't in the bounds using google maps v3

Asked
Active3 hr before
Viewed126 times

4 Answers

usinggooglemarkercheck
90%

Is this code enough to check the bounds is in or out?, What is an expedience of sci-fi gliders? these machines flying near the very ground ,Therefore, what about something like the following?,Connect and share knowledge within a single location that is structured and easy to search.

Therefore, what about something like the following?

function check_is_in_or_out(marker) {
   return map.getBounds().contains(marker.getPosition());
}
88%

Now we need to iterate over each marker, providing an anonymous callback function which creates a new Google position object from the lat and lng parameters available in our JSON file. Once we’ve got that, we’ll create a new Google map marker object and push it into our markers array. Finally, we’ll extend our bounds using the new position:,We should now have a working app that can display a full-screen Google Maps canvas, and plot markers on that map from a JSON file.,As with our map variable, we want to define some more variables outside of the function, in the global scope. In this function, we’ll be working with markers and bounds, both of which may be useful elsewhere later, so it’s a good idea to have these in the global scope.,Firstly, we pass our lang variable as the language parameter to instruct Google on which language we want the map to be in.

Let’s create an HTML file with the following markup:

<!DOCTYPE html>
<html lang="en">

<head>
   <meta charset="utf-8">
   <meta http-equiv="X-UA-Compatible" content="IE=edge">
   <meta name="viewport" content="width=device-width, initial-scale=1">
   <title>Google Maps API Template</title>

   <link rel="stylesheet" href="style.css" />
</head>

<body>
   <div id="map"></div>

   <script src="script.js" defer></script>
</body>

</html>
load more v
72%

when panning/rotating, the movements are slow because this loop blocks the drawing thread for too much time by iterating over all the clusters and checking they are in the bounds or not,Here is a detailed description of all my changes. Because my time was limited and I had to reuse the viewport bounds I created a tiny class to store the value in. Quick & dirty but it doesn't hurt anyone.,Any word on this? I have about 8k markers and the lib is unusable at that point unfortunately. And I say unfortunately with great respect as this is a beautiful lib as far as UI, very easy to use and documented well. Really hoping I can use this soon :(,Any word on this? I have about 8k markers and the lib is unusable at that point unfortunately. And I say unfortunately with great respect as this is a beautiful lib as far as UI, very easy to use and documented well. Really hoping I can use this soon :(

@Override
public void onCameraChange(CameraPosition cameraPosition) {
   LatLngBounds bounds = map.getProjection().getVisibleRegion().latLngBounds;

   for (Marker marker: clusterManager.getClusterMarkerCollection().getMarkers()) {
      if (bounds.contains(marker.getPosition())) {
         marker.setVisible(true);
      } else {
         marker.setVisible(false);
      }
   }
}
load more v
65%

In [Part 1][1] of this tutorial series we looked at how to set up a basic Google Maps integration within an Ionic application. In [Part 2][2], we took that a little further and looked at how we might load in map markers dynamically using the $http service.,To deal with this, we are going to figure out the area of the map that the user is currently looking at and only load in markers that are contained within that area. The process will look something like this:,Finally, we need to modify the server side code to take the area of the map we are looking at into account. Again, my example is in PHP but you can implement this with whatever you would like.,We supply the bounds of the map as parameters when loadining markers (which we will make use of shortly)

There are ways we can detect if the user is online both by using a Cordova plugin, and also by just using simple JavaScript. As well as detecting if they are online, we can also detect when they go online or offline. I've talked about how to do this in depth [in this tutorial][4] but in short the code looks like this:

// listen for Online event
$rootScope.$on('$cordovaNetwork:online', function(event, networkState) {
   doSomething();
});

// listen for Offline event
$rootScope.$on('$cordovaNetwork:offline', function(event, networkState) {
   doSomething();
});
load more v

Other "using-google" queries related to "How can I check the marker is or isn't in the bounds using google maps v3"