jvx.numeric
Class PnStiffMatrix

java.lang.Object
  |
  +--jv.object.PsObject
        |
        +--jvx.numeric.PnStiffMatrix

All Implemented Interfaces:

java.lang.Cloneable, PsUpdateIf, java.io.Serializable

Direct Known Subclasses:

PnStiffConformal, PnStiffDiriConforming, PnStiffDiriNonConforming, PnStiffSpring

public class PnStiffMatrix

extends PsObject

Create and setup sparse representation of a stiffness matrix.

Version:

08.11.00, 2.10 revised (kp) Number formatting replaced with PuString from Fmt.
03.09.99, 2.00 revised (kp) Method split in subclasses.
00.00.98, 1.00 created (kp)

Author:

Konrad Polthier

See Also:

Serialized Form

Field Summary

int	m_noe Number of triangles of surface.
int	m_nop Number of free variables, i.e. edge length of full stiffness matrix.
PiVector[]	m_sindx For each row of the full stiffness matrix exists an array listing the column position of each non-zero entry.
PiVector	m_snoe Count number of entries in each line of the sparse stiffness matrix, i.e. count number of connected edges and add 1 for itself (the diagonal entry).
PdVector[]	m_stiff For each row of the full stiffness matrix exists an array listing the non-zero values.

Fields inherited from class jv.object.PsObject

HAS_CONFIG_PANEL, HAS_INFO_PANEL, HAS_MATERIAL_PANEL, HAS_TEXTURE_PANEL, INSPECTOR_INFO, INSPECTOR_INFO_EXT, IS_DELETED, IS_FIXED, IS_SELECTED, IS_USED, NUM_TAGS

Constructor Summary

PnStiffMatrix(PgElementSet surface)

Method Summary

void	init(PgElementSet surface) Initializes the stiffness matrix by computing the index vector and matrix entries.
void	init(PgElementSet domain, PgElementSet surface) Initializes the stiffness matrix by computing the index vector and matrix entries.
java.lang.String	toString() Create a full matrix and print all components in a multi-line string representation.

Methods inherited from class jv.object.PsObject

addInspector, addUpdateListener, assureInspector, clearTag, clone, clone, clone, copy, getFather, getInfoPanel, getInspector, getName, getNumObjects, hasInspector, hasTag, hasUpdateListener, init, instanceOf, instanceOf, removeInspector, removeUpdateListener, setName, setParent, setTag, update, updatePanels

Methods inherited from class java.lang.Object

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

Field Detail

m_nop

public int m_nop

Number of free variables, i.e. edge length of full stiffness matrix.

m_noe

public int m_noe

Number of triangles of surface.

m_snoe

public PiVector m_snoe

Count number of entries in each line of the sparse stiffness matrix, i.e. count number of connected edges and add 1 for itself (the diagonal entry).

m_sindx

public PiVector[] m_sindx

For each row of the full stiffness matrix exists an array listing the column position of each non-zero entry.

See Also:

m_stiff

m_stiff

public PdVector[] m_stiff

For each row of the full stiffness matrix exists an array listing the non-zero values. The instance variable m_sindx has stored the column index. Therefore, the double component s[i][j] of the full stiffness matrix is store in m_stiff[i][_j] if m_sindx[i][_j] == j.

See Also:

m_sindx

Constructor Detail

PnStiffMatrix

public PnStiffMatrix(PgElementSet surface)

Method Detail

init

public void init(PgElementSet surface)

Initializes the stiffness matrix by computing the index vector and matrix entries. Method can be used to reset the stiffness matrix. All memory allocation is done in constructor.

init

public void init(PgElementSet domain,
                 PgElementSet surface)

Initializes the stiffness matrix by computing the index vector and matrix entries. Method can be used to reset the stiffness matrix. All memory allocation is done in constructor.

toString

public java.lang.String toString()

Create a full matrix and print all components in a multi-line string representation.

Overrides:

toString in class PsObject