Exploring the capabilities of browser API's related to geolocation and device orientation.
I'm wondering, if I have information on someone's orientation (like a compass angle from 0 to 360 degrees), is it feasible to determine if they are facing towards a specific latitude and longitude?
I'm stumped when it comes to the necessary math or logic for this scenario...
According to this source, there exists a formula for determining an angle using two sets of coordinates (latitude and longitude):
function calculateAngle(lat1, lon1, lat2, lon2) {
const point1 = {
x: lat1,
y: lon1,
};
const point2 = {
x: lat2,
y: lon2,
};
return (Math.atan2(point2.y - point1.y, point2.x - point1.x) * 180) / Math.PI;
}
You can employ this function to ascertain the direction (angle) from current position to the destination and then compare it with the compass angle, providing accuracy based on your specific application.
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