PwRefinePolygon ("JavaView Reference Manual")

java.lang.Object
- jv.object.PsObject
- - jvx.project.PjWorkshop
  - - jvx.geom.PwRefinePolygon

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, PsUpdateIf, PjWorkshopIf
```
public class PwRefinePolygon
extends PjWorkshop
```
Class to refine or coarsen a PgPolygon

See Also:
Serialized Form

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`COARSEN_CHAIKIN`
`static int`	`COARSEN_DFH`
`static int`	`COARSEN_DLG`
`static int`	`COARSEN_LINEAR`
`static int`	`REFINE_CHAIKIN`
`static int`	`REFINE_DFH`
`static int`	`REFINE_DLG`
`static int`	`REFINE_LINEAR`

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

PwRefinePolygon()
Constructor

Constructors
Constructor and Description
`PwRefinePolygon()` Constructor

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addSequenceEntry(int entry)` Store a new refinement step to the refinement sequence.
`void`	`close()` Remove the control polygon from the display and destroy this workshop.
`static void`	`coarsenChaikin(PgPolygon poly)` Coarsen a PgPolygon global by a reversed Chaikin algorithm.
`static void`	`coarsenChaikin(PgPolygonSet polySet)` Coarsen a PgPolygonSet global by a reversed Chaikin algorithm.
`static void`	`coarsenDFH(PgPolygon poly)` Coarsen a PgPolygon global by a reversed DFH algorithm.
`static void`	`coarsenDFH(PgPolygonSet polySet)` Coarsen a PgPolygonSet global by a reversed Chaikin algorithm.
`static void`	`coarsenDLG(PgPolygon poly)` Coarsen a PgPolygon by removing every second vertex.
`static void`	`coarsenDLG(PgPolygonSet polySet)` Coarsen a PgPolygonSet by removing every second vertex.
`static void`	`coarsenLinear(PgPolygon poly)` Coarsen a PgPolygon by removing every second vertex.
`static void`	`coarsenLinear(PgPolygonSet polySet)` Coarsen a PgPolygonSet by removing every second vertex.
`static PdVector`	`getFourPointMask()` Return mask vector for Dyn, Floater, Hormann new four point scheme.
`static PdVector`	`getFourPointMask(double tension)` Return mask vector for Dyn, Floater, Hormann new four point scheme.
`boolean`	`isShowingControlGrid()` Checks if control grid of polygon is visible.
`static void`	`refineChaikin(PgPolygon poly)` Refine a PgPolygon globally by Chaikin's algorithm.
`static void`	`refineChaikin(PgPolygonSet polySet)` Refine a PgPolygonSet globally by Chaikin's algorithm.
`static void`	`refineDFH(PgPolygon poly, PdVector weight)` Refine a PgPolygon globally by a 2n-point rule.
`static void`	`refineDFH(PgPolygonSet polySet, PdVector weight)` Refine a PgPolygon globally by a 2n-point rule.
`static void`	`refineDLG(PgPolygon poly)` Refine a PgPolygon globally by DLG scheme.
`static void`	`refineDLG(PgPolygonSet polySet)` Refine a PgPolygonSet globally by DLG scheme.
`static void`	`refineLinear(PgPolygon poly)` Refine a PgPolygon globally by inserting edge midpoints.
`static void`	`refineLinear(PgPolygonSet polySet)` Refine a PgPolygonSet globally by inserting edge mid points.
`void`	`reset()` Remove all previously done refining and and coarsening and set the workshop to its initial status.
`void`	`sequenceRefine()` Recompute all refinement steps.
`void`	`setGeometry(PgPolygon geom)` Assign a geometry on which this workshop operates, and create two backup copies: One for canceling and one to be used as control polygon for the refined geometry.
`void`	`setGeometry(PgPolygonSet geom)` Assign a geometry on which this workshop operates, and create two backup copies: One for canceling and one to be used as control polygonSet for the refined geometry.
`void`	`showControlGrid(boolean bShow)` Set the control polygon visible or invisible in the display.
`boolean`	`update(java.lang.Object event)` Update the class whenever a child has changed.

Methods inherited from class jvx.project.PjWorkshop
cancel, getDisplay, getDisplays, getGeometry, getMode, getSavedGeometry, getViewer, init, isModal, isStandalone, ok, openDialog, removeGeometry, setDisplay, setDisplays, setGeometry, 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
  - REFINE_DLG
```
public static final int REFINE_DLG
```
    See Also:
    Constant Field Values
  - COARSEN_DLG
```
public static final int COARSEN_DLG
```
    See Also:
    Constant Field Values
  - REFINE_CHAIKIN
```
public static final int REFINE_CHAIKIN
```
    See Also:
    Constant Field Values
  - COARSEN_CHAIKIN
```
public static final int COARSEN_CHAIKIN
```
    See Also:
    Constant Field Values
  - REFINE_LINEAR
```
public static final int REFINE_LINEAR
```
    See Also:
    Constant Field Values
  - COARSEN_LINEAR
```
public static final int COARSEN_LINEAR
```
    See Also:
    Constant Field Values
  - REFINE_DFH
```
public static final int REFINE_DFH
```
    See Also:
    Constant Field Values
  - COARSEN_DFH
```
public static final int COARSEN_DFH
```
    See Also:
    Constant Field Values
- Constructor Detail
  - PwRefinePolygon
```
public PwRefinePolygon()
```
    Constructor
- Method Detail
  - setGeometry
```
public void setGeometry(PgPolygon geom)
```
    Assign a geometry on which this workshop operates, and create two backup copies: One for canceling and one to be used as control polygon for the refined geometry.
  - setGeometry
```
public void setGeometry(PgPolygonSet geom)
```
    Assign a geometry on which this workshop operates, and create two backup copies: One for canceling and one to be used as control polygonSet for the refined geometry.
  - 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)
  - reset
```
public void reset()
```
    Remove all previously done refining and and coarsening and set the workshop to its initial status.
    
    Overrides:
    
    reset in class PjWorkshop
  - isShowingControlGrid
```
public boolean isShowingControlGrid()
```
    Checks if control grid of polygon is visible. By default, control grid is not visible.
  - showControlGrid
```
public void showControlGrid(boolean bShow)
```
    Set the control polygon visible or invisible in the display.
  - close
```
public void close()
```
    Remove the control polygon from the display and destroy this workshop.
    
    Overrides:
    
    close in class PjWorkshop
  - addSequenceEntry
```
public void addSequenceEntry(int entry)
```
    Store a new refinement step to the refinement sequence.
  - sequenceRefine
```
public void sequenceRefine()
```
    Recompute all refinement steps.
  - getFourPointMask
```
public static PdVector getFourPointMask()
```
    Return mask vector for Dyn, Floater, Hormann new four point scheme.
  - getFourPointMask
```
public static PdVector getFourPointMask(double tension)
```
    Return mask vector for Dyn, Floater, Hormann new four point scheme.
  - refineLinear
```
public static void refineLinear(PgPolygon poly)
```
    Refine a PgPolygon globally by inserting edge midpoints.
  - refineDLG
```
public static void refineDLG(PgPolygon poly)
```
    Refine a PgPolygon globally by DLG scheme. Afterwards the polygon will have twice as much vertices, the vertices v(i) at even indices are the original vertices of the polygon, the vertices at odd indices are blended from the next two vertices in both directions by 1/16(-v(i-1) + 9v(i) + 9v(i+1) - v(i+2)).
  - coarsenDLG
```
public static void coarsenDLG(PgPolygon poly)
```
    Coarsen a PgPolygon by removing every second vertex. This is the reverse algorithm for interpolating refinement algorithms.
  - coarsenLinear
```
public static void coarsenLinear(PgPolygon poly)
```
    Coarsen a PgPolygon by removing every second vertex. This is the reverse algorithm for interpolating refinement algorithms.
  - refineChaikin
```
public static void refineChaikin(PgPolygon poly)
```
    Refine a PgPolygon globally by Chaikin's algorithm. On each edge of the polygon two vertices of the refined polygon will be computed at 1/4 and 3/4 length.
  - coarsenChaikin
```
public static void coarsenChaikin(PgPolygon poly)
```
    Coarsen a PgPolygon global by a reversed Chaikin algorithm. Each vertex of the coarsened polygon gets blended from two of the extrapolated ancestor vertices of the edges v(i-2) to v(i-1) and v(i) to v(i+1).
  - refineDFH
```
public static void refineDFH(PgPolygon poly,
             PdVector weight)
```
    Refine a PgPolygon globally by a 2n-point rule. An example for n=1 is Chaikin's algorithm, for n=2 there is an one-parameter class of rules given by a paper of N. Dyn, M.S. Floater and K. Hormann.
  - coarsenDFH
```
public static void coarsenDFH(PgPolygon poly)
```
    Coarsen a PgPolygon global by a reversed DFH algorithm. Each vertex of the coarsened polygon gets blended from two of the extrapolated ancestor vertices of the edges v(i-2) to v(i-1) and v(i) to v(i+1).
  - refineLinear
```
public static void refineLinear(PgPolygonSet polySet)
```
    Refine a PgPolygonSet globally by inserting edge mid points.
  - refineDLG
```
public static void refineDLG(PgPolygonSet polySet)
```
    Refine a PgPolygonSet globally by DLG scheme. Afterwards the polygon will have twice as much vertices, the vertices v(i) at even indices are the original vertices of the polygon, the vertices at odd indices are blended from the next two vertices in both directions by 1/16(-v(i-1) + 9v(i) + 9v(i+1) - v(i+2)).
  - coarsenDLG
```
public static void coarsenDLG(PgPolygonSet polySet)
```
    Coarsen a PgPolygonSet by removing every second vertex. This is the reverse algorithm for interpolating refinement algorithms.
  - coarsenLinear
```
public static void coarsenLinear(PgPolygonSet polySet)
```
    Coarsen a PgPolygonSet by removing every second vertex. This is the reverse algorithm for interpolating refinement algorithms.
  - refineChaikin
```
public static void refineChaikin(PgPolygonSet polySet)
```
    Refine a PgPolygonSet globally by Chaikin's algorithm. On each edge of the polygon two vertices of the refined polygon will be computed at 1/4 and 3/4 length.
  - coarsenChaikin
```
public static void coarsenChaikin(PgPolygonSet polySet)
```
    Coarsen a PgPolygonSet global by a reversed Chaikin algorithm. Each vertex of the coarsened polygon gets blended from two of the extrapolated ancestor vertices of the edges v(i-2) to v(i-1) and v(i) to v(i+1).
  - refineDFH
```
public static void refineDFH(PgPolygonSet polySet,
             PdVector weight)
```
    Refine a PgPolygon globally by a 2n-point rule. An example for n=1 is Chaikin's algorithm, for n=2 there is an one-parameter class of rules given by a paper of N. Dyn, M.S. Floater and K. Hormann.
  - coarsenDFH
```
public static void coarsenDFH(PgPolygonSet polySet)
```
    Coarsen a PgPolygonSet global by a reversed Chaikin algorithm. Each vertex of the coarsened polygon gets blended from two of the extrapolated ancestor vertices of the edges v(i-2) to v(i-1) and v(i) to v(i+1).

Class PwRefinePolygon

Field Summary

Fields inherited from class jv.object.PsObject

Fields inherited from interface jv.project.PjWorkshopIf

Constructor Summary

Method Summary

Methods inherited from class jvx.project.PjWorkshop

Methods inherited from class jv.object.PsObject

Methods inherited from class java.lang.Object

Methods inherited from interface jv.object.PsUpdateIf

Field Detail

REFINE_DLG

COARSEN_DLG

REFINE_CHAIKIN

COARSEN_CHAIKIN

REFINE_LINEAR

COARSEN_LINEAR

REFINE_DFH

COARSEN_DFH

Constructor Detail

PwRefinePolygon

Method Detail

setGeometry

setGeometry

update

reset

isShowingControlGrid

showControlGrid

close

addSequenceEntry

sequenceRefine

getFourPointMask

getFourPointMask

refineLinear

refineDLG

coarsenDLG

coarsenLinear

refineChaikin

coarsenChaikin

refineDFH

coarsenDFH

refineLinear

refineDLG

coarsenDLG

coarsenLinear

refineChaikin

coarsenChaikin

refineDFH

coarsenDFH