PointGrid (NASA World Wind)

java.lang.Object
- gov.nasa.worldwind.avlist.AVListImpl
- - gov.nasa.worldwind.WWObjectImpl
  - - gov.nasa.worldwindx.examples.lineofsight.PointGrid

All Implemented Interfaces:

AVList, MessageListener, Highlightable, OrderedRenderable, Renderable, WWObject, PropertyChangeListener, EventListener
```
public class PointGrid
extends WWObjectImpl
implements OrderedRenderable, Highlightable
```

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

protected static class PointGrid.Attributes

Nested Classes
Modifier and Type	Class and Description
`protected static class`	`PointGrid.Attributes`

Field Summary

Fields
Modifier and Type	Field and Description
`protected PointGrid.Attributes`	`activeAttributes`
`protected int`	`altitudeMode`
`protected boolean`	`applyVerticalExaggeration`
`protected List<Position>`	`corners`
`protected FloatBuffer`	`currentPoints`
`protected static long`	`DEFAULT_GEOMETRY_GENERATION_INTERVAL` The default geometry regeneration interval, in milliseconds.
`protected static Color`	`DEFAULT_HIGHLIGHT_POINT_COLOR` The highlight color to use when none is specified
`protected static Double`	`DEFAULT_HIGHLIGHT_SCALE` The scale to use when highlighting if no highlight attributes are specified.
`protected static Color`	`DEFAULT_POINT_COLOR` The color to use when none is specified
`protected static Double`	`DEFAULT_POINT_SIZE` The point size to use when none is specified.
`protected static PointGrid.Attributes`	`defaultAttributes` The attributes used if attributes are not specified.
`protected Extent`	`extent`
`protected double`	`eyeDistance`
`protected long`	`frameID`
`protected long`	`geometryRegenerationInterval`
`protected PointGrid.Attributes`	`highlightAttrs`
`protected boolean`	`highlighted`
`protected boolean`	`highlightOnePosition`
`protected PointGrid.Attributes`	`normalAttrs`
`protected int`	`numPositions`
`protected Layer`	`pickLayer`
`protected PickSupport`	`pickSupport`
`protected Iterable<? extends Position>`	`positions`
`protected double`	`previousExaggeration`
`protected long`	`visGeomRegenFrame`
`protected boolean`	`visible`

Constructor Summary

Constructors
Constructor and Description

PointGrid()

PointGrid(List<Position> corners, Iterable<? extends Position> positions, Integer numPositions)

Constructors
Constructor and Description
`PointGrid()`
`PointGrid(List<Position> corners, Iterable<? extends Position> positions, Integer numPositions)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`protected void`	`beginDrawing(DrawContext dc)` Establish the OpenGL state needed to draw Paths.
`protected Extent`	`computeExtentAndEyeDistance(DrawContext dc)`
`protected FloatBuffer`	`computeGridPoints(DrawContext dc, FloatBuffer coords)`
`protected Vec4`	`computePoint(DrawContext dc, Position pos)`
`protected void`	`determineActiveAttributes()`
`protected Color`	`determineHighlightColor()`
`protected Double`	`determineHighlightPointSize()`
`protected void`	`doDrawOrderedRenderable(DrawContext dc)` Draws the points as an ordered renderable.
`protected void`	`drawOrderedRenderable(DrawContext dc)` Draws the path as an ordered renderable.
`protected void`	`drawPoints(DrawContext dc)`
`protected void`	`endDrawing(DrawContext dc)` Pop the state set in beginDrawing.
`PointGrid.Attributes`	`getActiveAttributes()`
`int`	`getAltitudeMode()`
`PointGrid.Attributes`	`getAttributes()`
`List<Position>`	`getCorners()`
`double`	`getDistanceFromEye()` Returns the ordered renderable's distance from the current view's eye point.
`Extent`	`getExtent()`
`long`	`getGeometryRegenerationInterval()`
`PointGrid.Attributes`	`getHighlightAttributes()`
`int`	`getNumPositions()`
`Iterable<? extends Position>`	`getPositions()`
`protected boolean`	`intersectsFrustum(DrawContext dc)` Determines whether the points intersect the view frustum.
`boolean`	`isApplyVerticalExaggeration()`
`boolean`	`isHighlighted()` Indicates whether to highlight the shape.
`boolean`	`isHighlightOnePosition()`
`boolean`	`isVisible()`
`protected void`	`makeOrderedRenderable(DrawContext dc)` If the scene controller is rendering ordered renderables, this method draws this placemark's image as an ordered renderable.
`protected boolean`	`mustRegenerateGeometry(DrawContext dc)`
`void`	`pick(DrawContext dc, Point pickPoint)` Executes a pick of the ordered renderable.
`protected void`	`pickPoints(DrawContext dc)`
`void`	`render(DrawContext dc)` Causes this `Renderable` to render itself using the provided draw context.
`void`	`setAltitudeMode(int altitudeMode)`
`void`	`setApplyVerticalExaggeration(boolean applyVerticalExaggeration)`
`void`	`setAttributes(PointGrid.Attributes normalAttrs)`
`void`	`setCorners(List<Position> corners)`
`protected void`	`setExtent(Extent extent)`
`void`	`setHighlightAttributes(PointGrid.Attributes highlightAttrs)`
`void`	`setHighlighted(boolean highlighted)` Specifies whether to highlight the shape.
`void`	`setHighlightOnePosition(boolean highlightOnePosition)`
`protected void`	`setPointColor(DrawContext dc, Color color)`
`protected void`	`setPointSize(DrawContext dc, Double size)`
`void`	`setPositions(Iterable<? extends Position> positions, Integer numPositions)`
`void`	`setVisible(boolean visible)`

Methods inherited from class gov.nasa.worldwind.WWObjectImpl
onMessage, propertyChange

Methods inherited from class gov.nasa.worldwind.avlist.AVListImpl
addPropertyChangeListener, addPropertyChangeListener, clearList, copy, firePropertyChange, firePropertyChange, getBooleanValue, getBooleanValue, getChangeSupport, getDoubleValue, getDoubleValue, getEntries, getIntegerValue, getIntegerValue, getLongValue, getLongValue, getRestorableStateForAVPair, getStringValue, getStringValue, getStringValue, getValue, getValues, hasKey, removeKey, removePropertyChangeListener, removePropertyChangeListener, setValue, setValues

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface gov.nasa.worldwind.avlist.AVList
addPropertyChangeListener, addPropertyChangeListener, clearList, copy, firePropertyChange, firePropertyChange, getEntries, getStringValue, getValue, getValues, hasKey, removeKey, removePropertyChangeListener, removePropertyChangeListener, setValue, setValues

Field Detail

activeAttributes

protected PointGrid.Attributes activeAttributes

altitudeMode
```
protected int altitudeMode
```

applyVerticalExaggeration

protected boolean applyVerticalExaggeration

corners
```
protected List<Position> corners
```

currentPoints
```
protected FloatBuffer currentPoints
```

DEFAULT_GEOMETRY_GENERATION_INTERVAL
```
protected static final long DEFAULT_GEOMETRY_GENERATION_INTERVAL
```
The default geometry regeneration interval, in milliseconds.

See Also:

Constant Field Values

DEFAULT_HIGHLIGHT_POINT_COLOR
```
protected static final Color DEFAULT_HIGHLIGHT_POINT_COLOR
```
The highlight color to use when none is specified

DEFAULT_HIGHLIGHT_SCALE
```
protected static final Double DEFAULT_HIGHLIGHT_SCALE
```
The scale to use when highlighting if no highlight attributes are specified.

DEFAULT_POINT_COLOR
```
protected static final Color DEFAULT_POINT_COLOR
```
The color to use when none is specified

DEFAULT_POINT_SIZE
```
protected static final Double DEFAULT_POINT_SIZE
```
The point size to use when none is specified.

defaultAttributes
```
protected static final PointGrid.Attributes defaultAttributes
```
The attributes used if attributes are not specified.

extent
```
protected Extent extent
```

eyeDistance
```
protected double eyeDistance
```

frameID
```
protected long frameID
```

geometryRegenerationInterval

protected long geometryRegenerationInterval

highlightAttrs

protected PointGrid.Attributes highlightAttrs

highlighted
```
protected boolean highlighted
```

highlightOnePosition
```
protected boolean highlightOnePosition
```

normalAttrs

protected PointGrid.Attributes normalAttrs

numPositions
```
protected int numPositions
```

pickLayer
```
protected Layer pickLayer
```

pickSupport
```
protected PickSupport pickSupport
```

positions

protected Iterable<? extends Position> positions

previousExaggeration
```
protected double previousExaggeration
```

visGeomRegenFrame
```
protected long visGeomRegenFrame
```

visible
```
protected boolean visible
```

Constructor Detail

PointGrid
```
public PointGrid()
```

PointGrid

public PointGrid(List<Position> corners,
                 Iterable<? extends Position> positions,
                 Integer numPositions)

Method Detail
- beginDrawing
```
protected void beginDrawing(DrawContext dc)
```
  Establish the OpenGL state needed to draw Paths.
  
  Parameters:
  
  dc - the current draw context.
- computeExtentAndEyeDistance
```
protected Extent computeExtentAndEyeDistance(DrawContext dc)
```
- computeGridPoints
```
protected FloatBuffer computeGridPoints(DrawContext dc,
                                        FloatBuffer coords)
```
- computePoint
```
protected Vec4 computePoint(DrawContext dc,
                            Position pos)
```
- determineActiveAttributes
```
protected void determineActiveAttributes()
```
- determineHighlightColor
```
protected Color determineHighlightColor()
```
- determineHighlightPointSize
```
protected Double determineHighlightPointSize()
```
- doDrawOrderedRenderable
```
protected void doDrawOrderedRenderable(DrawContext dc)
```
  Draws the points as an ordered renderable.
  
  Parameters:
  
  dc - the current draw context.
- drawOrderedRenderable
```
protected void drawOrderedRenderable(DrawContext dc)
```
  Draws the path as an ordered renderable.
  
  Parameters:
  
  dc - the current draw context.
- drawPoints
```
protected void drawPoints(DrawContext dc)
```
- endDrawing
```
protected void endDrawing(DrawContext dc)
```
  Pop the state set in beginDrawing.
  
  Parameters:
  
  dc - the current draw context.
- getActiveAttributes
```
public PointGrid.Attributes getActiveAttributes()
```
- getAltitudeMode
```
public int getAltitudeMode()
```
- getAttributes
```
public PointGrid.Attributes getAttributes()
```
- getCorners
```
public List<Position> getCorners()
```
- getDistanceFromEye
```
public double getDistanceFromEye()
```
  Returns the ordered renderable's distance from the current view's eye point. Intended to be used only to sort a list of ordered renderables according to eye distance, and only during frame generation when a view is active.
  
  Specified by:
  
  getDistanceFromEye in interface OrderedRenderable
  
  Returns:
  
  the distance of the ordered renderable from the current view's eye point.
- getExtent
```
public Extent getExtent()
```
- getGeometryRegenerationInterval
```
public long getGeometryRegenerationInterval()
```
- getHighlightAttributes
```
public PointGrid.Attributes getHighlightAttributes()
```
- getNumPositions
```
public int getNumPositions()
```
- getPositions
```
public Iterable<? extends Position> getPositions()
```
- intersectsFrustum
```
protected boolean intersectsFrustum(DrawContext dc)
```
  Determines whether the points intersect the view frustum.
  
  Parameters:
  
  dc - the current draw context.
  
  Returns:
  
  true if the points intersect the frustum, otherwise false.
- isApplyVerticalExaggeration
```
public boolean isApplyVerticalExaggeration()
```
- isHighlighted
```
public boolean isHighlighted()
```
  Indicates whether to highlight the shape.
  
  Specified by:
  
  isHighlighted in interface Highlightable
  
  Returns:
  
  true to highlight the shape, otherwise false.
- isHighlightOnePosition
```
public boolean isHighlightOnePosition()
```
- isVisible
```
public boolean isVisible()
```
- makeOrderedRenderable
```
protected void makeOrderedRenderable(DrawContext dc)
```
  If the scene controller is rendering ordered renderables, this method draws this placemark's image as an ordered renderable. Otherwise the method determines whether this instance should be added to the ordered renderable list.
  The Cartesian and screen points of the placemark are computed during the first call per frame and re-used in subsequent calls of that frame.
  
  Parameters:
  
  dc - the current draw context.
- mustRegenerateGeometry
```
protected boolean mustRegenerateGeometry(DrawContext dc)
```
- pick
```
public void pick(DrawContext dc,
                 Point pickPoint)
```
  Executes a pick of the ordered renderable.
  
  Specified by:
  
  pick in interface OrderedRenderable
  
  Parameters:
  
  dc - the current draw context.
  
  pickPoint - the pick point.
- pickPoints
```
protected void pickPoints(DrawContext dc)
```
- render
```
public void render(DrawContext dc)
```
  Causes this Renderable to render itself using the provided draw context.
  
  Specified by:
  
  render in interface Renderable
  
  Parameters:
  
  dc - the DrawContext to be used
  
  See Also:
  
  DrawContext
- setAltitudeMode
```
public void setAltitudeMode(int altitudeMode)
```
- setApplyVerticalExaggeration
```
public void setApplyVerticalExaggeration(boolean applyVerticalExaggeration)
```
- setAttributes
```
public void setAttributes(PointGrid.Attributes normalAttrs)
```
- setCorners
```
public void setCorners(List<Position> corners)
```
- setExtent
```
protected void setExtent(Extent extent)
```
- setHighlightAttributes
```
public void setHighlightAttributes(PointGrid.Attributes highlightAttrs)
```
- setHighlighted
```
public void setHighlighted(boolean highlighted)
```
  Specifies whether to highlight the shape.
  
  Specified by:
  
  setHighlighted in interface Highlightable
  
  Parameters:
  
  highlighted - true to highlight the shape, otherwise false.
- setHighlightOnePosition
```
public void setHighlightOnePosition(boolean highlightOnePosition)
```
- setPointColor
```
protected void setPointColor(DrawContext dc,
                             Color color)
```
- setPointSize
```
protected void setPointSize(DrawContext dc,
                            Double size)
```
- setPositions
```
public void setPositions(Iterable<? extends Position> positions,
                         Integer numPositions)
```
- setVisible
```
public void setVisible(boolean visible)
```

Class PointGrid

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class gov.nasa.worldwind.WWObjectImpl

Methods inherited from class gov.nasa.worldwind.avlist.AVListImpl

Methods inherited from class java.lang.Object

Methods inherited from interface gov.nasa.worldwind.avlist.AVList

Field Detail

activeAttributes

altitudeMode

applyVerticalExaggeration

corners

currentPoints

DEFAULT_GEOMETRY_GENERATION_INTERVAL

DEFAULT_HIGHLIGHT_POINT_COLOR

DEFAULT_HIGHLIGHT_SCALE

DEFAULT_POINT_COLOR

DEFAULT_POINT_SIZE

defaultAttributes

extent

eyeDistance

frameID

geometryRegenerationInterval

highlightAttrs

highlighted

highlightOnePosition

normalAttrs

numPositions

pickLayer

pickSupport

positions

previousExaggeration

visGeomRegenFrame

visible

Constructor Detail

PointGrid

PointGrid

Method Detail

beginDrawing

computeExtentAndEyeDistance

computeGridPoints

computePoint

determineActiveAttributes

determineHighlightColor

determineHighlightPointSize

doDrawOrderedRenderable

drawOrderedRenderable

drawPoints

endDrawing

getActiveAttributes

getAltitudeMode

getAttributes

getCorners

getDistanceFromEye

getExtent

getGeometryRegenerationInterval

getHighlightAttributes

getNumPositions

getPositions

intersectsFrustum

isApplyVerticalExaggeration

isHighlighted

isHighlightOnePosition

isVisible

makeOrderedRenderable

mustRegenerateGeometry

pick

pickPoints

render

setAltitudeMode

setApplyVerticalExaggeration

setAttributes

setCorners

setExtent

setHighlightAttributes

setHighlighted

setHighlightOnePosition

setPointColor