Over a million developers have joined DZone.
{{announcement.body}}
{{announcement.title}}

DZone's Guide to

# How to Find a Point Coordinates Between Other Two Points

· Java Zone
Free Resource

Comment (1)

Save
{{ articles[0].views | formatCount}} Views

Bitbucket is for the code that takes us to Mars, decodes the human genome, or drives your next car. What will your code do? Get started with Bitbucket today, it's free.

Theory: Given a segment from point A to point B, our goal is to find a C point coordinates at a specified distance on that segment.

Let’s say that DT is the distance of the AB segment and D is the distance from point A to point C.
Using the distance formula, we can find the distance from point A to point B:
Now, we can easily find the C point coordinates like this:

That’s it. From Java perspective, the mechanism looks like this:
``` package calculatelinepoints;

public class CalculateLinePoints {

public static void main(String[] args) {

// point A coordinates
double a = 20.0;
double b = 10.0;

// point B coordinates
double c = 50.0;
double d = 40.0;

// calculate distance between the two points
double DT = Math.sqrt(Math.pow((c - a), 2) + Math.pow((d - b), 2));

double D = 20.0; // distance to point C

double x;
double y;
double T = D / DT;

// finding point C coordinate
x = (1 - T) * a + T * c;
y = (1 - T) * b + T * d;

System.out.println("Point C coordinates:\n  x: " + x + "\n  y: " + y);
}
}http://e-blog-java.blogspot.ie/2013/03/how-to-find-point-coordinates-between.html```

Bitbucket is the Git solution for professional teams who code with a purpose, not just as a hobby. Get started today, it's free.

Topics:

Comment (1)

Save
{{ articles[0].views | formatCount}} Views

Published at DZone with permission of A. Programmer. See the original article here.

Opinions expressed by DZone contributors are their own.