Comprehending the "fitBounds" Function in Google Maps

Question

Comprehending the "fitBounds" Function in Google Maps

Just to clarify, I want to ensure that my understanding is correct. In my Google Maps app, I want to display markers from specific continents to my users.

Question: Is it accurate to say that a boundary in the Google Maps API is an area defined by NO MORE AND NO LESS than two points (markers)?

From my math lessons, I know that I only need two points to draw a 2D area. So to show all markers from Europe to my users, would it suffice to find two coordinates, one from Iceland (top left) and the second from, let's say, southeast Turkey? (For the USA, I would select Seattle and Miami).

https://i.sstatic.net/UQECP.jpg

Therefore, the JavaScript code below functions perfectly. I would like to confirm if my understanding and chosen approach are correct. Does it make any sense?

var bounds = new google.maps.LatLngBounds();

bounds.extend(new google.maps.LatLng('66.057878', '-22.579047')); // Iceland
bounds.extend(new google.maps.LatLng('37.961952', '43.878878')); // Turkey

this.map.fitBounds(bounds);

javascript google-maps google-maps-api-3

Answer 1

Answer №1

Indeed, your understanding is mostly accurate. In the case of Google Maps, a 'bound' can actually encompass multiple points. For instance, if you were to place a point at the far right in the center of the square in the image above and another point at the bottom of the square's center, the resulting area would be the same as depicted above, but with a total of 3 points as shown in the revised map.

https://i.sstatic.net/12ABc.jpg

Here's a link to the documentation for reference: https://developers.google.com/maps/documentation/javascript/reference?hl=en

Answer 2

Indeed, your understanding is mostly accurate. In the case of Google Maps, a 'bound' can actually encompass multiple points. For instance, if you were to place a point at the far right in the center of the square in the image above and another point at the bottom of the square's center, the resulting area would be the same as depicted above, but with a total of 3 points as shown in the revised map.

https://i.sstatic.net/12ABc.jpg

Here's a link to the documentation for reference: https://developers.google.com/maps/documentation/javascript/reference?hl=en

Answer 3

Answer №2

Instead of thinking in terms of "top-left" and "bottom-right," consider using "south-west" and "north-east" (or alternatively, "bottom-left" and "top-right") when working with the coordinates for creating and retrieving the bounds object.

For more information, refer to the official documentation and explore the getNorthEast and getSouthWest methods.

It's important to note that these two points are represented by LatLng objects, not markers. Markers are placed on the map using a LatLng object as their position.

Depending on your specific use case and data storage methods, there may be a more accurate way to display markers for "Europe." One approach could be to associate each marker with its corresponding region (e.g., "EU") in order to easily query for European markers specifically.

Answer 4

Instead of thinking in terms of "top-left" and "bottom-right," consider using "south-west" and "north-east" (or alternatively, "bottom-left" and "top-right") when working with the coordinates for creating and retrieving the bounds object.

For more information, refer to the official documentation and explore the getNorthEast and getSouthWest methods.

It's important to note that these two points are represented by LatLng objects, not markers. Markers are placed on the map using a LatLng object as their position.

Depending on your specific use case and data storage methods, there may be a more accurate way to display markers for "Europe." One approach could be to associate each marker with its corresponding region (e.g., "EU") in order to easily query for European markers specifically.

Comprehending the "fitBounds" Function in Google Maps

Answer №1

Answer №2

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