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.
 

See Also:

Serialized Form

Field Summary

Fields inherited from class jv.object.PsObject

HAS_CONFIG_PANEL, HAS_INFO_PANEL, HAS_LABEL_PANEL, HAS_MATERIAL_PANEL, HAS_TEXTURE_PANEL, HAS_VECTOR_PANEL, INSPECTOR_INFO, INSPECTOR_INFO_EXT, IS_DELETED, IS_FIXED, IS_FOCUSSED, IS_PICKED, IS_SELECTED, IS_USED, NUM_TAGS

Constructor Summary

PgVertexStar()

Method Summary

void	copy(PsObject object) Copy the content of data instance variables from argument object to this object.
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 the vertex star of a vertex of an 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, assureInspector, clearTag, clone, clone, clone, getFather, getInfoPanel, getInspector, getName, getNumObjects, getSymbol, hasInspector, hasTag, hasUpdateListener, instanceOf, instanceOf, newInspector, newInspector, removeInspector, removeInspector, removeUpdateListener, setName, setParent, setSymbol, setTag, update, updatePanels

Methods inherited from class java.lang.Object

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

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 the content of data instance variables from argument object to this object. Instance variables are copied recursively.

Instance variables like parent and listeners are not copied.

Overrides:

copy in class 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. Vertices i and (i+1) in this list belong to element i of getElement().

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 the vertex star of a vertex of an 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.

For efficiency applications are advised to supply the index of an element in the argument list. This avoids an initial run through the set of elements.

If neighbourhood is incorrect then warnings are issued.

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.