Question

i want to calculate how many pixels there are between 2 points on my screen.

I’ve seen that i can draw a straight line between 2 points using Path class, but i don’t really want to draw that line, i only want to know how long is it in pixels..

i really need it for my MapView clusters implementation..

i can get each marker position on screen with no problem, but don’t know how to calculate pixel’s “distance” between them …
i know that there are cluster’s implementations available but i want to try and create one of my own

help will be appreciated 🙂

Answer 1

This is very straightforward using a bit of algebra 🙂

Take the co-ordinates of both points and calculate the difference between their x and y values e.g.

dx = p1.x - p2.x;
dy = p1.y - p2.y;

distance = Math.sqrt( (dx * dx) + (dy * dy) );

Where p1 and p2 are the points you want get find the distance between, and distance is the result. It will be a double but you can round it to the nearest int if you wish