vgp.discrete.pointCloud

Class PjPointCloud

java.lang.Object

jv.object.PsObject

jv.project.PjProject

vgp.discrete.pointCloud.PjPointCloud

All Implemented Interfaces:

java.awt.event.ActionListener, java.io.Serializable, java.lang.Cloneable, java.util.EventListener, PsTimeListenerIf, PsUpdateIf, PvPickListenerIf

public class PjPointCloud
extends PjProject
implements java.awt.event.ActionListener

Anisotropic smoothing of point set surfaces.

See Also:

Serialized Form

Author:

Konrad Polthier

Version:

07.02.17, 4.02 revised (ms) Modify definition of Covariance and Anisotropic Laplacian to follow CAGD Paper.
24.01.17, 4.01 revised (ms) Dynamically choose models from repository folder, no hard coded filepaths.
14.01.17, 4.00 revised (kp) Work in progress ...
16.03.15, 3.00 revised (kp) Moved to vgp.discrete.pointCloud from dev.apps.
10.08.14, 2.00 revised (kp) User interface re-structured.
11.03.03, 1.00 created (kp)

Field Summary

Fields

Modifier and Type	Field and Description
static int	COLOR_COV_QUOTIENT
static int	COLOR_MAX_COV
static int	COLOR_MAX_PRINC
static int	COLOR_MEAN Current type of vertex coloring.
static int	COLOR_MEAN_ANI
static int	COLOR_PRINC_QUOTIENT
static double[]	CURVATURE
static java.lang.String[]	FILE_NAME
static double[]	INFLUENCE
static double[]	MAXHUE
static int	MODEL_COSTA
static int	MODEL_CUBE
static int	MODEL_CYLINDER
static java.lang.String[]	MODEL_NAMES
static int	MODEL_OCTAHEDRON
static int	MODEL_TORUS
static int	MODEL_TRUNCATED
static int	MODEL_VENUS
static int	NUM_MODELS Some models.

Fields inherited from class jv.object.PsObject

HAS_BOUNDARY_PANEL, 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

Constructors

Constructor and Description
PjPointCloud()
PjPointCloud(int modelID)

Method Summary

Modifier and Type	Method and Description
void	actionPerformed(java.awt.event.ActionEvent event)
void	computeAnisotropicLaplace(PgPointSet geom, PiVector[] neigh) Compute the anisotropic Laplacian for each vertex of a point set using the connectivity of the neigh parameter.
PdMatrix	computeCovariance(PdMatrix covMat, PdVector[] vertex) Compute the covariance matrix of a set of vertices in Rn.
int[]	computeCovarianceSpectrum(PdMatrix covMat, PdVector[] eVector, PdVector eValue) Compute the eigenvalue and eigenvectors of a covariance matrix.
static void	computeLaplace(PgPointSet geom, PiVector[] neigh) Compute the point set Laplacian for each vertex using the connectivity of the neigh parameter.
void	computeMesh() Compute an initial smooth mesh, which then must be distorted using the noise workshop.
void	computeNeighbour(PgPointSet geom, double influence) Calculate the adjacency relation which determines for each vertex an unordered set of nearby neighbours excluding the reference point.
void	computePrincipal(PgPointSet geom, PiVector[] neigh) Compute the principal curvature directions.
void	computeTangents(PgPointSet geom, PgPointSet tangent, PiVector[] neigh) Compute the normal vector and tangent plane of each vertex of a point set.
void	init() Initialize and reset project, stops the running animation if any.
void	reset()
void	setFileName(int currentModel) Set the file path of the given model id into the m_fileName variable.
boolean	setGeometry(PgGeometryIf newGeomIf) Sets given geometry as project geometry for energy minimization.
void	start() Method is invoked during loading of a project in JavaView.
boolean	update(java.lang.Object event) Update the class whenever a child has changed.

Methods inherited from class jv.project.PjProject

addDisplay, addGeometry, addGeometry, dispose, dragDisplay, dragInitial, dragVertex, fitDisplays, getAnimation, getDisplay, getDisplays, getGeometry, getGeometry, getNumGeometries, getParameter, getParameterInfo, getViewer, hasAnimation, hasDisplay, isEnabledAutoFit, markVertices, pickDisplay, pickInitial, pickVertex, removeDisplay, removeGeometries, removeGeometry, selectDisplay, selectGeometry, setAnimation, setBackColor, setBorderType, setDisplay, setEnabledAutoFit, setParameterInfo, setTime, setViewer, stop, unmarkVertices

Methods inherited from class jv.object.PsObject

addInspector, addUpdateListener, assureInspector, clearTag, clone, clone, clone, copy, getFather, getInfoPanel, getInspector, getName, getNumObjects, getSymbol, hasInspector, hasTag, hasUpdateListener, instanceOf, instanceOf, newInspector, newInspector, removeInspector, removeInspector, removeUpdateListener, setName, setParent, setSymbol, setTag, toString, updatePanels

Methods inherited from class java.lang.Object

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

Methods inherited from interface jv.anim.PsTimeListenerIf

getName

Methods inherited from interface jv.project.PvPickListenerIf

getName

Field Detail

COLOR_MEAN

public static final int COLOR_MEAN

Current type of vertex coloring. Type is equal to one of the COLOR_ values.

See Also:

Constant Field Values

COLOR_MEAN_ANI

public static final int COLOR_MEAN_ANI

See Also:

Constant Field Values

COLOR_MAX_PRINC

public static final int COLOR_MAX_PRINC

See Also:

Constant Field Values

COLOR_PRINC_QUOTIENT

public static final int COLOR_PRINC_QUOTIENT

See Also:

Constant Field Values

COLOR_COV_QUOTIENT

public static final int COLOR_COV_QUOTIENT

See Also:

Constant Field Values

COLOR_MAX_COV

public static final int COLOR_MAX_COV

See Also:

Constant Field Values

NUM_MODELS

public static final int NUM_MODELS

Some models.

See Also:

Constant Field Values

MODEL_VENUS

public static final int MODEL_VENUS

See Also:

Constant Field Values

MODEL_COSTA

public static final int MODEL_COSTA

See Also:

Constant Field Values

MODEL_CYLINDER

public static final int MODEL_CYLINDER

See Also:

Constant Field Values

MODEL_OCTAHEDRON

public static final int MODEL_OCTAHEDRON

See Also:

Constant Field Values

MODEL_TORUS

public static final int MODEL_TORUS

See Also:

Constant Field Values

MODEL_TRUNCATED

public static final int MODEL_TRUNCATED

See Also:

Constant Field Values

MODEL_CUBE

public static final int MODEL_CUBE

See Also:

Constant Field Values

MODEL_NAMES

public static final java.lang.String[] MODEL_NAMES

FILE_NAME

public static final java.lang.String[] FILE_NAME

INFLUENCE

public static final double[] INFLUENCE

CURVATURE

public static final double[] CURVATURE

MAXHUE

public static final double[] MAXHUE

Constructor Detail

PjPointCloud

public PjPointCloud()

PjPointCloud

public PjPointCloud(int modelID)

Method Detail

setFileName

public void setFileName(int currentModel)

Set the file path of the given model id into the m_fileName variable.

Parameters:

currentModel - ID of the current model

Version:

21.04.17, 1.15 revised (kp) Made method 1.1 conforming again by using PuString#replace.
24.01.17, 1.10 revised (ms) Dynamically choose models from repository folder, no hard coded filepaths.

init

public void init()

Description copied from class: PjProject

Initialize and reset project, stops the running animation if any. Does not reset any registered display nor geometry. They must be reset individually in each subclass.

Overrides:

init in class PjProject

start

public void start()

Description copied from class: PjProject

Method is invoked during loading of a project in JavaView.

If a project has an animation object, then the animation panel is shown when the project's this start() method is invoked during loading of the project. Use setAnimation(PsAnimation) to register an animation.

If auto fit is enabled then scenery is scaled to fit in each display.

Overrides:

start in class PjProject

See Also:

PvViewerIf.start(), PjProject.isEnabledAutoFit()

reset

public void reset()

setGeometry

public boolean setGeometry(PgGeometryIf newGeomIf)

Sets given geometry as project geometry for energy minimization.

Overrides:

setGeometry in class PjProject

Parameters:

newGeomIf - must be an element set

Returns:

false if newGeomIf is no element set

update

public boolean update(java.lang.Object event)

Update the class whenever a child has changed. Method is usually invoked from the children.

Specified by:

update in interface PsUpdateIf

Overrides:

update in class PsObject

Parameters:

event - carries a lot of information

Returns:

true if event has been handled, otherwise false

See Also:

PsObject.setParent(PsUpdateIf), PsObject.getFather(), PsObject.addUpdateListener(PsUpdateIf)

actionPerformed

public void actionPerformed(java.awt.event.ActionEvent event)

Specified by:

actionPerformed in interface java.awt.event.ActionListener

computeMesh

public void computeMesh()

Compute an initial smooth mesh, which then must be distorted using the noise workshop.

computeNeighbour

public void computeNeighbour(PgPointSet geom,
                             double influence)

Calculate the adjacency relation which determines for each vertex an unordered set of nearby neighbours excluding the reference point. The adjacency relation is a graph which, for example, is used in the calculation of the best fit tangent plane or the Laplacian.

computeLaplace

public static void computeLaplace(PgPointSet geom,
                                  PiVector[] neigh)

Compute the point set Laplacian for each vertex using the connectivity of the neigh parameter.

Parameters:

neigh - determines connectivity and neighbours of each vertex.

computeAnisotropicLaplace

public void computeAnisotropicLaplace(PgPointSet geom,
                                      PiVector[] neigh)

Compute the anisotropic Laplacian for each vertex of a point set using the connectivity of the neigh parameter.

Parameters:

neigh - determines connectivity and neighbours of each vertex.

computeCovariance

public PdMatrix computeCovariance(PdMatrix covMat,
                                  PdVector[] vertex)

Compute the covariance matrix of a set of vertices in Rn. If argument matrix is null then it will be allocated and returned, otherwise the argument matrix will be modified and returned.

If vertex array is missing then null is returned.

computeCovarianceSpectrum

public int[] computeCovarianceSpectrum(PdMatrix covMat,
                                       PdVector[] eVector,
                                       PdVector eValue)

Compute the eigenvalue and eigenvectors of a covariance matrix.

Vectors must be passed to this method. Vector with eigenvalue and the array of eigenvectors are filled. The eigenvalues and -vectors are sorted by increasing eigenvalue.

An index vector is returned which provides the indices of the eigenvalues in increasing order of value.

computeTangents

public void computeTangents(PgPointSet geom,
                            PgPointSet tangent,
                            PiVector[] neigh)

Compute the normal vector and tangent plane of each vertex of a point set. The vectors ares stored as vector field in tangent point set.

computePrincipal

public void computePrincipal(PgPointSet geom,
                             PiVector[] neigh)

Compute the principal curvature directions.