/* tuple3d.java
History:
12 Jul 2006 Created.
*/
/**
A class for storing an ordered triplet of float values. Roughly
based on javax.vecmath.Tuple3d except it includes dot() which
is only introduced in javax.vecmath.Vector3d.
*/
public class tuple3d {
protected float m_x, m_y, m_z;
/** Create a new tuple3d. */
public tuple3d (float x, float y, float z) {
set(x, y, z);
}
/** Set the tuple3d values from floats. */
public void set(float x, float y, float z) {
m_x = x;
m_y = y;
m_z = z;
}
/** Set the tuple3d values from another tuple3d. */
public void set(tuple3d tuple) {
m_x = tuple.m_x;
m_y = tuple.m_y;
m_z = tuple.m_z;
}
/** Scale the tuple3d values by the specified value. */
public void scale(float f) {
m_x *= f;
m_y *= f;
m_z *= f;
}
/** Compute dot product of the tuple3d with another tuple3d. */
public float dot(tuple3d tuple) {
return m_x*tuple.m_x + m_y*tuple.m_y + m_z*tuple.m_z;
}
/** Access x value of the tuple3d. */
public float x() { return m_x; }
/** Access y value of the tuple3d. */
public float y() { return m_y; }
/** Access z value of the tuple3d. */
public float z() { return m_z; }
/** Generate a String representation of this tuple3d. */
public String toString() {
return ("[" + m_x + "," + m_y + "," + m_z + "]");
}
}