Java Utililty Methods Angle Difference

List of utility methods to do Angle Difference

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Description

The list of methods to do Angle Difference are organized into topic(s).

Method

doubleangleDif(double a1, double a2)
Compute the difference between two angles. 
double val = a1 - a2;
if (val > Math.PI) {
    val -= 2. * Math.PI;
if (val < -Math.PI) {
    val += 2. * Math.PI;
return val;
...
floatangleDif(float a, float b)
angle Dif 
if (b > a)
    return b - a > PI ? (float) (a + 2 * PI - b) : b - a;
return a - b > PI ? (float) (b + 2 * PI - a) : a - b;
floatangleDif(float a1, float a2)
Compute the difference between two angles. 
double val = a1 - a2;
if (val > Math.PI) {
    val -= 2. * Math.PI;
if (val < -Math.PI) {
    val += 2. * Math.PI;
return (float) val;
...
doubleangleDiff(double a, double b)
given two angels in radians, returns a difference in radians closest to zero such that a + angleDiff(a, b) represents b. 
return angleDiff(a, b, Math.PI * 2);
doubleangleDiff(double alpha, double beta)
angle Diff 
double angleDiff = alpha - beta;
return ((((angleDiff) % (2 * Math.PI)) + (3 * Math.PI)) % (2 * Math.PI)) - Math.PI;
doubleangleDiff(double angle1, double angle2, boolean normalized)
angle Diff 
if (!normalized) {
    angle1 = normalizeAngle(angle1);
    angle2 = normalizeAngle(angle2);
return Math.min(Math.abs(angle1 - angle2),
        Math.min(Math.abs(angle1 - angle2 + TWO_PI), Math.abs(angle1 - angle2 - TWO_PI)));
doubleangleDiff(final double a1, final double a2)
Get the difference of angles (radians) as given from angle(x,z), from a1 to a2, i.e. 
if (Double.isNaN(a1) || Double.isNaN(a1))
    return Double.NaN;
final double diff = a2 - a1;
if (diff < -Math.PI)
    return diff + 2.0 * Math.PI;
else if (diff > Math.PI)
    return diff - 2.0 * Math.PI;
else
...
floatangleDiff(float a, float b)
Returns the smallest signed difference between the two given angles, from a to b. 
return reduceAngle(b - a);
intangleDiff(int ang1, int ang2)
angle Diff 
int delta = ang2 - ang1;
delta %= ANGLE_2PI;
if (delta < 0)
    delta += ANGLE_2PI;
if (delta > ANGLE_PI)
    delta -= ANGLE_2PI;
return delta;
doubleangleDiff(int angle1, int angle2)
angle Diff 
double diff = Math.abs(angle1 - angle2);
if (diff <= 180) {
    return diff;
} else {
    return 360 - diff;