Java Distance Calculate distUndermod(double a, double b, double mod)

Description

dist Undermod

License

Open Source License

Declaration

public static double distUndermod(double a, double b, double mod) 

Method Source Code

//package com.java2s;

public class Main {
    public static double distUndermod(double a, double b, double mod) {

        if (mod < 0) {
            throw new IllegalArgumentException("mod must be positive");
        }//w  w  w .  ja  va 2s. c om

        // compute difference in each direction.
        double diff_x = a - b;
        double diff_y = b - a;

        // take modulo.
        diff_x = diff_x % mod;
        diff_y = diff_y % mod;

        // ensure +ve.
        if (diff_x < 0) {
            diff_x += mod;
        }
        if (diff_y < 0) {
            diff_y += mod;
        }

        return Math.min(diff_x, diff_y);
    }
}

Related

1. distSquared(float x0, float y0, float x1, float y1)
2. distSquaredCartesian(double[] vec1, double[] vec2)
3. distSquareVec3(final float[] v1, final float[] v2)
4. distSymbol(int dist)
5. distToRectNode(double[] point, double[] nodeCenter, double nodeRadius)
6. distVector(double[] vector1, double[] vector2)
7. distVincentyRAD(double lat1, double lon1, double lat2, double lon2)
8. getDistance(double lat1, double lng1, double lat2, double lng2)
9. sqrDistance(float x1, float y1, float x2, float y2)