edu.sdsc.mbt.viewers.GLViewerImpl
Class Trihedron

java.lang.Object
  edu.sdsc.mbt.viewers.GLViewerImpl.Trihedron

public class Trihedron

extends java.lang.Object

Holds a moving trihedron normalized three-tuple of vectors that represents the basis vectors that define a coordinate system. The tangent represents the direction of a curve, the normal represents the direction of the plane in which the tangen lies, and the binormal is the cross-product of the tangent and normal vectors.

Constructor Summary

Trihedron()
Primary Constructor.

Trihedron(float[] tan, float[] norm)
Primary Constructor.

Method Summary

float[]	getBinormal() Get the binormal vector.
float[]	getNormal() Get the normal vector.
float[]	getTangent() Get the tangent vector.
void	set(float[] tan, float[] norm) Set the tangent and normal vectors.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Trihedron

public Trihedron()

Primary Constructor. Constructs a unit-normal cartesian trihedron.

Trihedron

public Trihedron(float[] tan,
                 float[] norm)

Primary Constructor. Constructs a trihedron using the specified tangent and normal vectors.

Method Detail

set

public void set(float[] tan,
                float[] norm)

Set the tangent and normal vectors.

Parameters:

tan - The x,y,z distances defining the tangent vector.

norm - The x,y,z distances defining the normal vector.

Throws:

java.lang.NullPointerException - for null vector.

java.lang.IllegalArgumentException - for zero vector.

getTangent

public float[] getTangent()

Get the tangent vector.

Throws:

java.lang.NullPointerException - for null vector.

java.lang.IllegalArgumentException - for zero vector.

getNormal

public float[] getNormal()

Get the normal vector.

Throws:

java.lang.NullPointerException - for null vector.

java.lang.IllegalArgumentException - for zero vector.

getBinormal

public float[] getBinormal()

Get the binormal vector.

Throws:

java.lang.NullPointerException - for null vector.

java.lang.IllegalArgumentException - for zero vector.