gov.nasa.worldwindx.applications.antenna
Class AntennaModel

java.lang.Object
  gov.nasa.worldwind.avlist.AVListImpl
      gov.nasa.worldwind.WWObjectImpl
          gov.nasa.worldwind.render.AbstractShape
              gov.nasa.worldwindx.applications.antenna.AntennaModel

All Implemented Interfaces:

AVList, MessageListener, Exportable, ExtentHolder, Movable, GeographicExtent, Highlightable, OrderedRenderable, Renderable, Restorable, WWObject, PropertyChangeListener, EventListener

public class AntennaModel
extends AbstractShape

Models antenna gain. Gain values are drawn from an Interpolator2D. The value plotted is determined by the gain and this object's gain offset and gain scale: gain plotted = gain * gain scale + gain offset. Both the offset and the gain can be specified.

Nested Class Summary

protected static class

AntennaModel.ShapeData This class holds globe-specific data for this shape.

Nested classes/interfaces inherited from class gov.nasa.worldwind.render.AbstractShape

AbstractShape.AbstractShapeData

Field Summary

protected Angle	azimuth
static int	DISPLAY_MODE_FILL
static int	DISPLAY_MODE_LINE
static int	DISPLAY_MODE_POINT
protected Angle	elevationAngle
protected double	gainOffset
protected double	gainScale
protected Interpolator2D	interpolator
protected int	nPhiIntervals
protected int	nPhiPoints
protected int	nThetaIntervals
protected int	nThetaPoints
protected Position	position
protected WWTexture	texture

Fields inherited from class gov.nasa.worldwind.render.AbstractShape

activeAttributes, altitudeMode, BEogsh, currentData, DEFAULT_ALTITUDE_MODE, DEFAULT_GEOMETRY_GENERATION_INTERVAL, DEFAULT_HIGHLIGHT_MATERIAL, DEFAULT_INTERIOR_MATERIAL, DEFAULT_OUTLINE_MATERIAL, DEFAULT_OUTLINE_PICK_WIDTH, defaultAttributes, delegateOwner, enableBatchPicking, enableBatchRendering, enableDepthOffset, highlightAttrs, highlighted, maxExpiryTime, minExpiryTime, normalAttrs, outlinePickWidth, outlineShapeRenderer, pickLayer, pickSupport, referencePosition, sector, shapeDataCache, VBO_THRESHOLD, viewDistanceExpiration, visible

Fields inherited from interface gov.nasa.worldwind.Exportable

FORMAT_NOT_SUPPORTED, FORMAT_PARTIALLY_SUPPORTED, FORMAT_SUPPORTED

Constructor Summary

AntennaModel(Interpolator2D interpolator)

Method Summary

protected AbstractShape.AbstractShapeData	createCacheEntry(DrawContext dc) Creates and returns a new cache entry specific to the subclass.
protected void	doDrawInterior(DrawContext dc) Draws this shape's interior.
protected void	doDrawOutline(DrawContext dc) Draws this shape's outline.
protected void	doExportAsKML(XMLStreamWriter xmlWriter) Exports shape-specific fields.
protected boolean	doMakeOrderedRenderable(DrawContext dc) Produces the geometry and other state necessary to represent this shape as an ordered renderable.
void	drawModel(DrawContext dc, int displayMode, boolean showTexture)
protected void	fillVBO(DrawContext dc) Fill this shape's vertex buffer objects.
Angle	getAzimuth()
BufferedImage	getColorRamp()
protected AntennaModel.ShapeData	getCurrent() Returns the current shape data cache entry.
Angle	getElevationAngle()
Extent	getExtent(Globe globe, double verticalExaggeration) Returns the objects enclosing volume as an Extent in model coordinates, given a specified Globe and vertical exaggeration (see SceneController.getVerticalExaggeration().
double	getGainOffset()
double	getGainScale()
int	getPhiResolution()
Position	getPosition()
double	getRadius()
Position	getReferencePosition() A position associated with the object that indicates its aggregate geographic position.
Sector	getSector() Returns the object's geographic extent.
int	getThetaResolution()
protected Vec4	getVec(AntennaModel.ShapeData shapeData, int i, int j)
protected void	initialize() Called during construction to establish any subclass-specific state such as different default values than those set by this class.
List<Intersection>	intersect(Line line, Terrain terrain) Compute the intersections of a specified line with this shape.
String	isExportFormatSupported(String mimeType) Does this object support a certain export format?
protected boolean	isOrderedRenderableValid(DrawContext dc) Determines whether this shape's ordered renderable state is valid and can be rendered.
protected void	makeNormals()
void	moveTo(Position position) Move the shape over the globe's surface while maintaining its original azimuth, its orientation relative to North.
protected boolean	mustApplyTexture(DrawContext dc) Indicates whether texture should be applied to this shape.
protected boolean	mustRegenerateGeometry(DrawContext dc) Indicates whether this shape's renderable geometry must be recomputed, either as a result of an attribute or property change or the expiration of the geometry regeneration interval.
protected void	putVec(int i, int j, Vec4 vec, FloatBuffer buffer)
void	setAzimuth(Angle azimuth) Specifies an angle clockwise from north by which to rotate the model.
void	setColorRamp(BufferedImage image) Specifies an image to use as the color ramp for the model.
void	setElevationAngle(Angle elevationAngle) Specifies an angle to rotate the model vertically counterclockwise from the horizon.
void	setGainOffset(double gainOffset) Specifies the gain offset in the formula: gain plotted = gain * gain scale + gain offset.
void	setGainScale(double gainScale) Specifies the gain scale in the formula: gain plotted = gain * gain scale + gain offset.
void	setPhiResolution(int numTPoints) Specifies the number of plotted points in this model's longitudinal direction.
void	setPosition(Position position) Specifies the position of this model's center.
void	setThetaResolution(int numSPoints) Specifies the number of plotted points in this model's north-south direction.
protected boolean	shouldUseVBOs(DrawContext dc) Indicates whether this shape should use OpenGL vertex buffer objects.

Methods inherited from class gov.nasa.worldwind.render.AbstractShape

addOrderedRenderable, beginDrawing, checkViewDistanceExpiration, clearCachedVbos, computeExtentFromPositions, computePoint, countTriangleVertices, createPickedObject, determineActiveAttributes, doDrawOrderedRenderable, doGetRestorableState, doRestoreState, drawBatched, drawInterior, drawOrderedRenderable, drawOutline, endDrawing, export, exportAsKML, getActiveAttributes, getAltitudeMode, getAttributes, getCurrentData, getDelegateOwner, getDistanceFromEye, getExtent, getGeometryRegenerationInterval, getHighlightAttributes, getOutlinePickWidth, getReferencePoint, getRestorableState, getVboIds, intersectsFrustum, isEnableBatchPicking, isEnableBatchRendering, isEnableDepthOffset, isHighlighted, isTerrainDependent, isViewDistanceExpiration, isVisible, makeOrderedRenderable, makeTexture, move, mustApplyLighting, mustApplyLighting, mustCreateNormals, mustCreateNormals, mustDrawInterior, mustDrawOutline, pick, prepareToDrawInterior, prepareToDrawOutline, render, reset, restoreState, setAltitudeMode, setAttributes, setDelegateOwner, setEnableBatchPicking, setEnableBatchRendering, setEnableDepthOffset, setGeometryRegenerationInterval, setHighlightAttributes, setHighlighted, setOutlinePickWidth, setReferencePosition, setViewDistanceExpiration, setVisible

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

azimuth

protected Angle azimuth

DISPLAY_MODE_FILL

public static final int DISPLAY_MODE_FILL

See Also:

Constant Field Values

DISPLAY_MODE_LINE

public static final int DISPLAY_MODE_LINE

See Also:

Constant Field Values

DISPLAY_MODE_POINT

public static final int DISPLAY_MODE_POINT

See Also:

Constant Field Values

elevationAngle

protected Angle elevationAngle

gainOffset

protected double gainOffset

gainScale

protected double gainScale

interpolator

protected Interpolator2D interpolator

nPhiIntervals

protected int nPhiIntervals

nPhiPoints

protected int nPhiPoints

nThetaIntervals

protected int nThetaIntervals

nThetaPoints

protected int nThetaPoints

position

protected Position position

texture

protected WWTexture texture

Constructor Detail

AntennaModel

public AntennaModel(Interpolator2D interpolator)

Method Detail

createCacheEntry

protected AbstractShape.AbstractShapeData createCacheEntry(DrawContext dc)

Description copied from class: AbstractShape

Creates and returns a new cache entry specific to the subclass.

Specified by:

createCacheEntry in class AbstractShape

Parameters:

dc - the current draw context.

Returns:

a data cache entry for the state in the specified draw context.

doDrawInterior

protected void doDrawInterior(DrawContext dc)

Description copied from class: AbstractShape

Draws this shape's interior. Called immediately after calling AbstractShape.prepareToDrawInterior(DrawContext, ShapeAttributes, ShapeAttributes), which establishes OpenGL state for lighting, blending, pick color and interior attributes. Subclasses should execute the drawing commands specific to the type of shape.

A AbstractShape.AbstractShapeData must be current when this method is called.

Specified by:

doDrawInterior in class AbstractShape

Parameters:

dc - the current draw context.

doDrawOutline

protected void doDrawOutline(DrawContext dc)

Description copied from class: AbstractShape

Draws this shape's outline. Called immediately after calling AbstractShape.prepareToDrawOutline(DrawContext, ShapeAttributes, ShapeAttributes), which establishes OpenGL state for lighting, blending, pick color and line attributes. Subclasses should execute the drawing commands specific to the type of shape.

A AbstractShape.AbstractShapeData must be current when this method is called.

Specified by:

doDrawOutline in class AbstractShape

Parameters:

dc - the current draw context.

doExportAsKML

protected void doExportAsKML(XMLStreamWriter xmlWriter)
                      throws IOException,
                             XMLStreamException

Description copied from class: AbstractShape

Exports shape-specific fields.

Specified by:

doExportAsKML in class AbstractShape

Parameters:

xmlWriter - the export writer to write to.

Throws:

IOException - if an IO error occurs while writing to the output destination.

XMLStreamException - if an exception occurs converting this shape's fields to XML.

doMakeOrderedRenderable

protected boolean doMakeOrderedRenderable(DrawContext dc)

Description copied from class: AbstractShape

Produces the geometry and other state necessary to represent this shape as an ordered renderable. Places this shape on the draw context's ordered renderable list for subsequent rendering. This method is called during AbstractShape.pick(DrawContext, java.awt.Point) and AbstractShape.render(DrawContext) when it's been determined that the shape is likely to be visible.

Specified by:

doMakeOrderedRenderable in class AbstractShape

Parameters:

dc - the current draw context.

Returns:

true if the ordered renderable state was successfully computed, otherwise false, in which case the current pick or render pass is terminated for this shape. Subclasses should return false if it is not possible to create the ordered renderable state.

See Also:

AbstractShape.pick(DrawContext, java.awt.Point), AbstractShape.render(DrawContext)

drawModel

public void drawModel(DrawContext dc,
                      int displayMode,
                      boolean showTexture)

fillVBO

protected void fillVBO(DrawContext dc)

Description copied from class: AbstractShape

Fill this shape's vertex buffer objects. If the vertex buffer object resource IDs don't yet exist, create them.

A AbstractShape.AbstractShapeData must be current when this method is called.

Specified by:

fillVBO in class AbstractShape

Parameters:

dc - the current draw context.

getAzimuth

public Angle getAzimuth()

getColorRamp

public BufferedImage getColorRamp()

getCurrent

protected AntennaModel.ShapeData getCurrent()

Returns the current shape data cache entry.

Returns:

the current data cache entry.

getElevationAngle

public Angle getElevationAngle()

getExtent

public Extent getExtent(Globe globe,
                        double verticalExaggeration)

Description copied from interface: ExtentHolder

Returns the objects enclosing volume as an Extent in model coordinates, given a specified Globe and vertical exaggeration (see SceneController.getVerticalExaggeration().

Specified by:

getExtent in interface ExtentHolder

Overrides:

getExtent in class AbstractShape

Parameters:

globe - the Globe the object is related to.

verticalExaggeration - the vertical exaggeration of the scene containing this object.

Returns:

the object's Extent in model coordinates.

getGainOffset

public double getGainOffset()

getGainScale

public double getGainScale()

getPhiResolution

public int getPhiResolution()

getPosition

public Position getPosition()

getRadius

public double getRadius()

getReferencePosition

public Position getReferencePosition()

Description copied from interface: Movable

A position associated with the object that indicates its aggregate geographic position. The chosen position varies among implementers of this interface. For objects defined by a list of positions, the reference position is typically the first position in the list. For symmetric objects the reference position is often the center of the object. In many cases the object's reference position may be explicitly specified by the application.

Returns:

the object's reference position, or null if no reference position is available.

getSector

public Sector getSector()

Description copied from interface: GeographicExtent

Returns the object's geographic extent.

Returns:

the object's geographic extent.

getThetaResolution

public int getThetaResolution()

getVec

protected Vec4 getVec(AntennaModel.ShapeData shapeData,
                      int i,
                      int j)

initialize

protected void initialize()

Description copied from class: AbstractShape

Called during construction to establish any subclass-specific state such as different default values than those set by this class.

Specified by:

initialize in class AbstractShape

intersect

public List<Intersection> intersect(Line line,
                                    Terrain terrain)
                             throws InterruptedException

Description copied from class: AbstractShape

Compute the intersections of a specified line with this shape. If the shape's altitude mode is other than WorldWind.ABSOLUTE, the shape's geometry is created relative to the specified terrain rather than the terrain used during rendering, which may be at lower level of detail than required for accurate intersection determination.

Specified by:

intersect in class AbstractShape

Parameters:

line - the line to intersect.

terrain - the Terrain to use when computing the shape's geometry.

Returns:

a list of intersections identifying where the line intersects the shape, or null if the line does not intersect the shape.

Throws:

InterruptedException - if the operation is interrupted.

See Also:

Terrain

isExportFormatSupported

public String isExportFormatSupported(String mimeType)

Description copied from interface: Exportable

Does this object support a certain export format?

Specified by:

isExportFormatSupported in interface Exportable

Overrides:

isExportFormatSupported in class AbstractShape

Parameters:

mimeType - Desired export format.

Returns:

One of Exportable.FORMAT_SUPPORTED, Exportable.FORMAT_NOT_SUPPORTED, or Exportable.FORMAT_PARTIALLY_SUPPORTED.

See Also:

Exportable.export(String, Object)

isOrderedRenderableValid

protected boolean isOrderedRenderableValid(DrawContext dc)

Description copied from class: AbstractShape

Determines whether this shape's ordered renderable state is valid and can be rendered. Called by AbstractShape.makeOrderedRenderable(DrawContext)just prior to adding the shape to the ordered renderable list.

Specified by:

isOrderedRenderableValid in class AbstractShape

Parameters:

dc - the current draw context.

Returns:

true if this shape is ready to be rendered as an ordered renderable.

makeNormals

protected void makeNormals()

moveTo

public void moveTo(Position position)

Description copied from interface: Movable

Move the shape over the globe's surface while maintaining its original azimuth, its orientation relative to North.

Parameters:

position - the new position of the shape's reference position.

mustApplyTexture

protected boolean mustApplyTexture(DrawContext dc)

Description copied from class: AbstractShape

Indicates whether texture should be applied to this shape. Called during rendering to determine whether texture state should be established during preparation for interior drawing.

Note: This method always returns false during the pick pass.

Specified by:

mustApplyTexture in class AbstractShape

Parameters:

dc - the current draw context

Returns:

true if texture should be applied, otherwise false.

mustRegenerateGeometry

protected boolean mustRegenerateGeometry(DrawContext dc)

Description copied from class: AbstractShape

Indicates whether this shape's renderable geometry must be recomputed, either as a result of an attribute or property change or the expiration of the geometry regeneration interval.

A AbstractShape.AbstractShapeData must be current when this method is called.

Overrides:

mustRegenerateGeometry in class AbstractShape

Parameters:

dc - the current draw context.

Returns:

true if this shape's geometry must be regenerated, otherwise false.

putVec

protected void putVec(int i,
                      int j,
                      Vec4 vec,
                      FloatBuffer buffer)

setAzimuth

public void setAzimuth(Angle azimuth)

Specifies an angle clockwise from north by which to rotate the model.

Parameters:

azimuth - the angle from north.

setColorRamp

public void setColorRamp(BufferedImage image)

Specifies an image to use as the color ramp for the model. The image should modulate colors in its horizontal dimension and not modulate the colors in its vertical dimension. Minimum and maximum gain values are mapped respectively to the left-most and right-most color in the image. Intermediate gain values are mapped to the color at their position in the gain interval. The image should be a power of two in both dimensions.

Parameters:

image - the image containing the color ramp used to color the model.

setElevationAngle

public void setElevationAngle(Angle elevationAngle)

Specifies an angle to rotate the model vertically counterclockwise from the horizon. The rotation is a right-handed rotation relative to the X axis.

Parameters:

elevationAngle - the elevation angle.

setGainOffset

public void setGainOffset(double gainOffset)

Specifies the gain offset in the formula: gain plotted = gain * gain scale + gain offset. The default gain offset is 0.

Parameters:

gainOffset - the gain offset.

setGainScale

public void setGainScale(double gainScale)

Specifies the gain scale in the formula: gain plotted = gain * gain scale + gain offset. The default gain scale is 1.

Parameters:

gainScale - the gain offset.

setPhiResolution

public void setPhiResolution(int numTPoints)

Specifies the number of plotted points in this model's longitudinal direction. The default is 121.

Parameters:

numTPoints - the number of plotted points in the longitudinal direction. NOTE: this value minus one must divide 360 evenly, as in 31, 61, 91, 181, etc.

setPosition

public void setPosition(Position position)

Specifies the position of this model's center.

Parameters:

position - the position of this model's center.

setThetaResolution

public void setThetaResolution(int numSPoints)

Specifies the number of plotted points in this model's north-south direction. The default is 61.

Parameters:

numSPoints - the number of plotted points in the north-south direction. NOTE: this value minus one must divide 360 evenly, as in 31, 61, 91, etc.

shouldUseVBOs

protected boolean shouldUseVBOs(DrawContext dc)

Description copied from class: AbstractShape

Indicates whether this shape should use OpenGL vertex buffer objects.

Overrides:

shouldUseVBOs in class AbstractShape

Parameters:

dc - the current draw context.

Returns:

true if this shape should use vertex buffer objects, otherwise false.