jvx.geom
Class PgVertexStar

java.lang.Object
  |
  +--jv.object.PsObject
        |
        +--jvx.geom.PgVertexStar

All Implemented Interfaces:

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

public class PgVertexStar

extends PsObject

Vertex star of a vertex describes all elements which join a single vertex. The class contains information about

	element indices   of all elements around central vertex in counter-clockwise orientation.
	vertex indices    of all vertices in link in counter-clockwise orientation.
	local indices     of central vertex in each element.
 

Version:

01.04.00, 2.00 revised (kp) Moved from package jv.rsrc to jvx.rsrc.
13.09.99, 1.05 revised (kp) Revisions 1.01 and 1.02 merged into JavaView.
03.09.99, 1.04 revised (ur) Private reference to element set removed.
16.08.99, 1.03 revised (ur) makeVertexStar: Enabled using for not orientable ElementSets.
16.08.99, 1.02 revised (ep) Method getFirstElemInd added.
14.08.99, 1.01 revised (ep) Method isClosed added.
18.07.99, 1.00 created (kp)

Author:

Konrad Polthier

See Also:

Serialized Form

Field Summary

protected boolean	m_bClosed true if central vertex lies in the interior of the surface.
protected PiVector	m_element Indices of elements of the star in global element array of surface.
protected int	m_firstElemInd Index of first elemInd in m_element array of vertex star.
protected PiVector	m_link Indices of vertices of link in global vertex array of surface.
protected int	m_vertexInd Index of central vertex in global vertex array of surface.
protected PiVector	m_vertexLocInd Local indices of central vertex in each element of the star.

Fields inherited from class jv.object.PsObject

HAS_CONFIG_PANEL, HAS_INFO_PANEL, HAS_MATERIAL_PANEL, INSPECTOR_INFO, INSPECTOR_INFO_EXT, IS_DELETED, IS_FIXED, IS_SELECTED, IS_USED, m_infoPanel, m_name, m_panelList, m_parent, m_tag, m_updateList, NUM_TAGS

Constructor Summary

PgVertexStar()

Method Summary

void	copy(PsObject object) Copy base instance variables and prepend "Copy of" to name if identical to original object name.
PiVector	getElement() Get list of element indices of vertex star.
int	getFirstElemInd() Get the index of first elemInd in m_element array of vertex star.
PiVector	getLink() Get list of vertex indices of vertex star.
int	getSize() Get number of elements in vertex star.
PiVector	getVertexLocInd() Get list of local indices of central vertex in adjacent elements.
void	init() If instance has missing name then assign default name 'object_NUMBER' where number is the total number of already created instances.
boolean	isClosed() Returns whether vertex star around a point is closed.
void	makeVertexStar(PgElementSet elemSet, int vertexInd, int elemInd) Create vertex star for given vertex of element set.
void	setSize(int size, boolean closed) Set number of elements in vertex star.
java.lang.String	toString() Create a multi-line string representation with detailed information about all instance variables.

Methods inherited from class jv.object.PsObject

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

Methods inherited from class java.lang.Object

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

Field Detail

m_vertexInd

protected int m_vertexInd

Index of central vertex in global vertex array of surface.

m_element

protected PiVector m_element

Indices of elements of the star in global element array of surface.

m_link

protected PiVector m_link

Indices of vertices of link in global vertex array of surface.

m_vertexLocInd

protected PiVector m_vertexLocInd

Local indices of central vertex in each element of the star.

m_bClosed

protected boolean m_bClosed

true if central vertex lies in the interior of the surface.

m_firstElemInd

protected int m_firstElemInd

Index of first elemInd in m_element array of vertex star. If no first elemInd is supplied by user, then, if star is closed the m_firstElemInd is the first element of the surface referencing the central vertex, or, if star is not closed, the element on the boundary is taken such that one walks through the star counter-clockwise.

Constructor Detail

PgVertexStar

public PgVertexStar()

Method Detail

init

public void init()

Description copied from class: PsObject

If instance has missing name then assign default name 'object_NUMBER' where number is the total number of already created instances.

Overrides:

init in class PsObject

toString

public java.lang.String toString()

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

Overrides:

toString in class PsObject

copy

public void copy(PsObject object)

Description copied from class: PsObject

Copy base instance variables and prepend "Copy of" to name if identical to original object name. In general, only geometry data is copied, no material properties and no external links.

Overrides:

copy in class PsObject

Following copied from class: jv.object.PsObject

See Also:

PsObject.clone()

getElement

public PiVector getElement()

Get list of element indices of vertex star.

getLink

public PiVector getLink()

Get list of vertex indices of vertex star.

getVertexLocInd

public PiVector getVertexLocInd()

Get list of local indices of central vertex in adjacent elements.

isClosed

public boolean isClosed()

Returns whether vertex star around a point is closed. Vertex star is closed if and only if point lies in the interior of a surface. If point lies on the surface boundary then the vertex star is not closed.

getFirstElemInd

public int getFirstElemInd()

Get the index of first elemInd in m_element array of vertex star. If no first elemInd is supplied by user, then, if star is closed the m_firstElemInd is the first element of the surface referencing the central vertex, or, if star is not closed, the element on the boundary is taken such that one walks through the star counter-clockwise.

getSize

public int getSize()

Get number of elements in vertex star.

setSize

public void setSize(int size,
                    boolean closed)

Set number of elements in vertex star.

makeVertexStar

public void makeVertexStar(PgElementSet elemSet,
                           int vertexInd,
                           int elemInd)

Create vertex star for given vertex of element set. If elemInd==-1, then, if star is closed, elemInd is the first element referencing the central vertex, or, if star is not closed, the element on those boundary is taken such that one walks through the star counter-clockwise.

Parameters:

elemSet - PgElementSet

vertexInd - Index of vertex in global vertex array of elemSet

elemInd - Index of element in global element array which references the vertex, might be -1.

Returns:

true on success