/* 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 + "]"); } }
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