Example usage for org.apache.commons.math.geometry Vector3D getNorm

Introduction

In this page you can find the example usage for org.apache.commons.math.geometry Vector3D getNorm.

Prototype

public double getNorm() 

Source Link

Document

Get the L₂ norm for the vector.

Usage

From source file:magma.agent.worldmodel.impl.MovableObject.java

public void calculateSpeed(float lastSeenTime, float time) {
    // need previousPosition, hence speed is calculated after update
    if (getPreviousPosition() != null) {
        Vector3D checkSpeed = new Vector3D();
        checkSpeed = getPosition().subtract(getPreviousPosition());
        if (time - lastSeenTime > 1)
            checkSpeed = new Vector3D(checkSpeed.getX() / (time - lastSeenTime),
                    checkSpeed.getY() / (time - lastSeenTime), checkSpeed.getZ() / (time - lastSeenTime));

        // we don't set speed for impossible values
        if (checkSpeed.getNorm() < getPossibleSpeed())
            speed = checkSpeed;//  w  ww  . ja  v  a2s .  com
    } else
        speed = new Vector3D(0.0, 0.0, 0.0);
}

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From source file:uk.ac.imperial.presage2.util.location.Location.java

/**
 * Get the {@link Move} from this Location towards a location <code>l</code>
 * with a magnitude less than or equal to <code>speed</code>.
 * // w  w  w  . jav a  2 s.c o  m
 * @param l
 * @param speed
 * @return
 */
public Move getMoveTo(Location l, double speed) {
    Vector3D v = getVectorTo(l);
    if (v.getNorm() > speed)
        return new Move(v.normalize().scalarMultiply(speed));
    else
        return new Move(v);
}

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