jv.vecmath
Class P_Vector

java.lang.Object
  |
  +--jv.vecmath.P_Vector

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

PdBary, PdBaryDir, PdVector, PgElementEdge, PiVector, PvDisplayOption

public abstract class P_Vector

extends java.lang.Object

implements java.io.Serializable

Abstract base class for linear algebra vectors allowing to tag individual vectors.

Version:

21.06.00, 1.10 revised (kp) Optional array with constraint indices added.
00.00.97, 1.00 created (kp)

Author:

Konrad Polthier

See Also:

Serialized Form

Field Summary

protected static int	BITS Number of bits in each long.
protected long[]	m_bits We do not create a Java BitSet but do all bit manipulations ourselfs to save storage.
protected int[]	m_constraint Optional array with indices of constraints.
protected java.lang.String	m_name Optional name of vector.
protected static int	MASK Mask is used to distribute bits over different integers in array m_bits.
protected static int	NUM_BITS Maximal number of bits allocated in m_bits.

Constructor Summary

P_Vector()

Method Summary

void	clearTag(int aBit) Clears a single bit.
static P_Vector[]	clone(P_Vector[] src) Duplicate array and all entries by recursively cloning all instance variables except inspector panels and lists of registered listeners.
static P_Vector[][]	clone(P_Vector[][] src) Duplicate array and all entries by recursively cloning all instance variables except inspector panels and lists of registered listeners.
void	copy(P_Vector vec) Copies the bitfield of another vector.
long[]	getBits() Get integer array with bits.
java.lang.String	getName() Get name of vector.
boolean	hasTag(int aBit) Gets the value of a single bit.
void	setName(java.lang.String name) Set name of vector, e.g. to be shown in display.
void	setTag(int aBit) Sets a single bit.
java.lang.String	toString() Create a multi-line string representation with detailed information about all instance variables.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

NUM_BITS

protected static final int NUM_BITS

Maximal number of bits allocated in m_bits.

BITS

protected static final int BITS

Number of bits in each long.

MASK

protected static final int MASK

Mask is used to distribute bits over different integers in array m_bits.

m_bits

protected long[] m_bits

We do not create a Java BitSet but do all bit manipulations ourselfs to save storage. The length of m_bits is the number of long's needed to store all requested bits. A long is assumed to store 64=2^BITS bits. The value of each tag refers to a specific bit in the bit array whose index is the value of the tag.

See Also:

#create(int)

m_name

protected java.lang.String m_name

Optional name of vector.

m_constraint

protected int[] m_constraint

Optional array with indices of constraints. Constraints must be handled by supervising geometry.

Constructor Detail

P_Vector

public P_Vector()

Method Detail

toString

public java.lang.String toString()

Create a multi-line string representation with detailed information about all instance variables.

Overrides:

toString in class java.lang.Object

getName

public java.lang.String getName()

Get name of vector.

Returns:

Name of vector

setName

public void setName(java.lang.String name)

Set name of vector, e.g. to be shown in display.

Parameters:

name - New name of vector

getBits

public long[] getBits()

Get integer array with bits.

setTag

public void setTag(int aBit)

Sets a single bit. If the bit array does not exist then it is created. If the array too small then it is enlarged.

Parameters:

bit - the index of the bit to be set

clearTag

public void clearTag(int aBit)

Clears a single bit.

Parameters:

bit - the index of the bit to be cleared

hasTag

public boolean hasTag(int aBit)

Gets the value of a single bit.

Parameters:

bit - the index of the bit to be gotten

clone

public static P_Vector[][] clone(P_Vector[][] src)

Duplicate array and all entries by recursively cloning all instance variables except inspector panels and lists of registered listeners. The parent relationship is maintained only within this class but not to external classes. In general, all links of the clone to external objects are set to null.

See Also:

copy(P_Vector)

clone

public static P_Vector[] clone(P_Vector[] src)

Duplicate array and all entries by recursively cloning all instance variables except inspector panels and lists of registered listeners. The parent relationship is maintained only within this class but not to external classes. In general, all links of the clone to external objects are set to null.

See Also:

copy(P_Vector)

copy

public void copy(P_Vector vec)

Copies the bitfield of another vector. If the argument vector has no bit array then the bit array of this is removed and the pointer set to null. The bit array of this is created or enlarged if necessary.

Parameters:

vec - the vector to be copied