jvx.geom

Class PwModel

java.lang.Object

jv.object.PsObject

jvx.project.PjWorkshop

jvx.geom.PwModel

All Implemented Interfaces:

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

Direct Known Subclasses:

PwModelTwoParm

public class PwModel
extends PjWorkshop

Utility programs for modeling operations on polyhedral surfaces. Contains static functions to, for example, shrink, truncate or stellate a polyhedral surface.

See Also:

Serialized Form

Author:

Ulrich Reitebuch

Version:

22.11.17, 2.61 revised (ur) bugfix in rhombificate method.
25.06.05, 2.60 revised (kp) Method shrink() no longer breaks with nullPtr when unused vertices exist in geom.
25.06.05, 2.50 revised (kp) Code optimization by heavily using existing LA methods.
13.07.04, 2.40 revised (ur) New flag whether to apply modeling or to leave geometry untouched.
05.10.02, 2.31 revised (kp) Slider increment values made smaller.
18.09.02, 2.30 revised (ur) New extrude method added.
08.07.02, 2.20 revised (ur) Added new Method to get the dual PgElementSet.
06.03.02, 2.10 revised (ur) Method dooSabin moved from this class to PwRefineElementSet.
28.12.01, 2.00 revised (kp) Full revision when incorporating the new workshop handling.
24.09.01, 1.70 revised (ur) Now all methods adjust all vector fields and element and vertex textures.
17.09.01, 1.60 revised (ep) Added vector field support.
06.06.01, 1.50 revised (ur) New Method dooSabin added.
05.03.01, 1.41 revised (ur) Adjust element back colors.
02.03.01, 1.40 revised (ur) Enabled truncating of not oriented PgElementSets.
14.12.00, 1.30 revised (ur) New Method punch added, tiny changes in method stellate.
14.11.00, 1.20 revised (ur) Adjust vertex textures and element textures.
10.11.00, 1.10 revised (ur) Bug in maintaining boundary polygons removed, adjusting of vertex and element colors enabled.
19.10.99, 1.02 revised (ur) TruncateFill modified to adjust boundary polygons to the new surface, truncate and shrink to set geom.m_bndList.length to zero.
06.10.99, 1.01 revised (ur) TruncateFill modified to add faces at vertices with only one touching face.
26.07.99, 1.00 created (ur)

Field Summary

Fields

Modifier and Type	Field and Description
static int	EXTRUDE
static int	EXTRUDE_SYMMETRIC
static int	PUNCH
static int	RHOMBIFICATE
static int	SHRINK
static int	STELLATE
static int	TRUNCATE
static int	TRUNCATEFILL

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

Fields inherited from interface jv.project.PjWorkshopIf

MODE_BUG, MODE_STANDARD, MODE_VALIDATE

Constructor Summary

Constructors

Constructor and Description
PwModel() Constructor.
PwModel(PgElementSet geom) Deprecated. use constructor prj=new PwModel();prj.setGeometry(geom);prj.reset();

Method Summary

Modifier and Type	Method and Description
boolean	compute() Update the registered geometry based on the currently selected solid type.
static void	dual(PgElementSet geom) Get the dual PgElementSet: Each vertex will be replaced by an element, having the center points of the adjacent elements as vertices; new boundary elements get two additional vertices at the boundary edge midpoints, if the vertex had only one adjacent element, the new element will contain also the old vertex.
static void	extrude(PgElementSet geom, double factor) Reduplicate geometry with vertices at the tips of the vertex normals and fill the gaps at the boundaries with quadrilaterals.
static void	extrude(PgElementSet geom, double factor, boolean bExtrudeSymmetric) Reduplicate geometry with vertices at the tips of the vertex normals and fill the gaps at the boundaries with quadrilaterals.
int	getModelingType() Get the current modeling type.
void	init() Initialisation.
boolean	isEnabledModeling() Return flag whether to apply current modeling mode to the workshop's geometry.
static void	punch(PgElementSet geom, double factor) Cut out a shrunken copy from every element; the remaining face gets divided into quadrilaterals, each containing one edge of the original element and of the cut-out shrunken copy.
void	reset() Reset workshop and geometry to original state.
static void	rhombificate(PgElementSet geom, double par) Cut all edges and vertices and fill the gaps with new elements.
static void	rhombiTruncate(PgElementSet geom, double faceFactor, double edgeFactor) Rhombi-Truncate the surface.
void	setElementSet(PgElementSet geom) Deprecated. use setGeometry(PgGeometry).
void	setEnabledModeling(boolean flag) Define flag whether to apply current modeling mode to the workshop's geometry.
void	setGeometry(PgGeometry geom) Overwrite the backup element set, on which the modeling tools will work.
void	setModelingType(int type) Set the current modeling type.
static void	shrink(PgElementSet geom, double factor) Shrink every face of ElementSet by a constant factor; every face gets its own edges and vertices, all neighbourhood information gets lost.
static void	snubTruncate(PgElementSet geom, double faceFactor, double edgeFactor)
static void	stellate(PgElementSet geom, double h) Replace every face by a pyramid.
static void	truncate(PgElementSet geom, double factor, boolean newFaces) Truncate all vertices.
boolean	update(java.lang.Object event) Update the class whenever a child has changed.

Methods inherited from class jvx.project.PjWorkshop

cancel, close, getDisplay, getDisplays, getGeometry, getMode, getSavedGeometry, getViewer, isModal, isStandalone, ok, removeGeometry, setDisplay, setDisplays, setModal, setMode, setStandalone, setViewer

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.object.PsUpdateIf

getFather, getName, setParent

Field Detail

SHRINK

public static final int SHRINK

See Also:

Constant Field Values

TRUNCATE

public static final int TRUNCATE

See Also:

Constant Field Values

STELLATE

public static final int STELLATE

See Also:

Constant Field Values

TRUNCATEFILL

public static final int TRUNCATEFILL

See Also:

Constant Field Values

PUNCH

public static final int PUNCH

See Also:

Constant Field Values

EXTRUDE

public static final int EXTRUDE

See Also:

Constant Field Values

EXTRUDE_SYMMETRIC

public static final int EXTRUDE_SYMMETRIC

See Also:

Constant Field Values

RHOMBIFICATE

public static final int RHOMBIFICATE

See Also:

Constant Field Values

Constructor Detail

PwModel

public PwModel(PgElementSet geom)

Deprecated. use constructor prj=new PwModel();prj.setGeometry(geom);prj.reset();

Constructor.

PwModel

public PwModel()

Constructor.

Method Detail

init

public void init()

Initialisation.

Overrides:

init in class PjWorkshop

reset

public void reset()

Reset workshop and geometry to original state.

Overrides:

reset in class PjWorkshop

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 PjWorkshop

Parameters:

event - sender of this update.

Returns:

true if update was correctly handled by superclass.

See Also:

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

compute

public boolean compute()

Update the registered geometry based on the currently selected solid type.

See Also:

setGeometry(PgGeometry), setModelingType(int)

setGeometry

public void setGeometry(PgGeometry geom)

Overwrite the backup element set, on which the modeling tools will work.

Specified by:

setGeometry in interface PjWorkshopIf

Overrides:

setGeometry in class PjWorkshop

Parameters:

geom - the workshop modifies this geometry.

setElementSet

public void setElementSet(PgElementSet geom)

Deprecated. use setGeometry(PgGeometry).

Overwrite the backup elementSet, on which the modeling tools will work.

getModelingType

public int getModelingType()

Get the current modeling type.

setModelingType

public void setModelingType(int type)

Set the current modeling type. At the same time the parameter bounds of the previous modeling type are saved to the max/min values.

setEnabledModeling

public void setEnabledModeling(boolean flag)

Define flag whether to apply current modeling mode to the workshop's geometry.

isEnabledModeling

public boolean isEnabledModeling()

Return flag whether to apply current modeling mode to the workshop's geometry.

shrink

public static void shrink(PgElementSet geom,
                          double factor)

Shrink every face of ElementSet by a constant factor; every face gets its own edges and vertices, all neighbourhood information gets lost.

Parameters:

factor - shrinking factor

Author:

Ulrich Reitebuch

Version:

11.09.01, 1.30 revised (ep) Keep vertex based vector fields.
10.11.00, 1.20 revised (ur) Adjust vertex textures and element textures.
07.11.00, 1.10 revised (ur) Use vertex colors of parent vertices for new vertices.
26.07.99, 1.00 created (ur)

stellate

public static void stellate(PgElementSet geom,
                            double h)

Replace every face by a pyramid. Dimension of Elements will be set to 3.

Parameters:

h - height of pyramid

Author:

Ulrich Reitebuch

Version:

13.09.01, 1.30 revised (ep) Handle vertex and element based vector fields.
14.11.00, 1.20 revised (ur) Adjust vertex textures and element textures.
07.11.00, 1.10 revised (ur) Use colors of parent faces for new triangles and blend colors for new vertices.
26.07.99, 1.00 created (ur)

truncate

public static void truncate(PgElementSet geom,
                            double factor,
                            boolean newFaces)

Truncate all vertices.

Parameters:

geom - Geometry to operate on.

factor - blend factor for Vertices

newFaces - true = replace truncated vertices with new faces

Author:

Ulrich Reitebuch

Version:

14.06.02, 1.90 revised (ur) Avoid PgVertexStar.makeVertexStar(*,*,-1).
28.01.02, 1.80 revised (ur) Correct handling of elements at boundaries of not oriented PgElementSets.
20.ß9.01, 1.70 revised (ur) Adjust Element Textures.
13.09.01, 1.60 revised (ep) Handle element and vertex based vector fields.
12.09.01, 1.50 revised (ep) Interpolate vertex colors.
02.03.01, 1.40 revised (ur) Enabled truncating of not oriented PgElementSets.
14.11.00, 1.30 revised (ur) Adjust vertex textures.
10.11.00, 1.20 revised (ur) Adjust colors of elements and vertices; bug in maintaining boundary polygons removed.
19.04.00, 1.10 revised (kp) Use bndList when accessing boundaries.
26.07.99, 1.00 created (ur)

rhombificate

public static void rhombificate(PgElementSet geom,
                                double par)

Cut all edges and vertices and fill the gaps with new elements. Each edge will be replaced by a quadrilateral, original elements are shrunken and new n-gonal faces are inserted at vertices with n original faces touching.

Author:

Ulrich Reitebuch

Version:

22.11.17, 1.01 revised (ur) bugfix - recompute neighbourhood before fixing boundary polygons.
28.06.08, 1.00 created (ur).

snubTruncate

public static void snubTruncate(PgElementSet geom,
                                double faceFactor,
                                double edgeFactor)

rhombiTruncate

public static void rhombiTruncate(PgElementSet geom,
                                  double faceFactor,
                                  double edgeFactor)

Rhombi-Truncate the surface. Each n-face of the geometry will be replaced by a 2n-face, each valence n vertex by a 2n-face and each edge by a quadrilateral.

Parameters:

geom - Geometry to operate on.

faceFactor - factor to move vertices to the face center

edgeFactor - factor to move vertices to the edge center

Author:

Ulrich Reitebuch

Version:

08.06.08, 1.00 created (ur)

punch

public static void punch(PgElementSet geom,
                         double factor)

Cut out a shrunken copy from every element; the remaining face gets divided into quadrilaterals, each containing one edge of the original element and of the cut-out shrunken copy.

Parameters:

factor - shrinking factor for the cut-out element.

Author:

Ulrich Reitebuch

Version:

20.09.01, 1.10 revised (ur) Adjust Vector Fields.
13.12.00, 1.00 created (ur)

dual

public static void dual(PgElementSet geom)

Get the dual PgElementSet: Each vertex will be replaced by an element, having the center points of the adjacent elements as vertices; new boundary elements get two additional vertices at the boundary edge midpoints, if the vertex had only one adjacent element, the new element will contain also the old vertex. Each element will be replaced by a vertex at its center.

Create new boundary only when original geometry has boundary.

Author:

Ulrich Reitebuch

Version:

07.07.04, 1.20 revised (ur) Hold Boundary polygon end points.
30.03.03, 1.10 revised (kp) Vertex and element normals transferred to dual mesh.
05.07.02, 1.00 created (ur)

extrude

public static void extrude(PgElementSet geom,
                           double factor)

Reduplicate geometry with vertices at the tips of the vertex normals and fill the gaps at the boundaries with quadrilaterals.

Parameters:

factor - Factor to multiply vertex normals with.

Author:

Ulrich Reitebuch

Version:

04.09.02, 1.00 created (ur)

extrude

public static void extrude(PgElementSet geom,
                           double factor,
                           boolean bExtrudeSymmetric)

Reduplicate geometry with vertices at the tips of the vertex normals and fill the gaps at the boundaries with quadrilaterals.

Parameters:

factor - Factor to multiply vertex normals with.

bExtrudeSymmetric - Specify if the original vertices shall be moved in -normal direction.

Author:

Ulrich Reitebuch

Version:

29.05.09, 1.10 revised (ur) New parameter for symmetric extrusion, orientation flipped.
04.09.02, 1.00 created (ur)