gov.nasa.worldwindx.examples.lineofsight
Class PointGrid

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

protected static class

PointGrid.Attributes

Field Summary

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

PointGrid()

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

Method Summary

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)