gov.nasa.worldwind.view.firstperson
Class BasicFlyView

java.lang.Object
  gov.nasa.worldwind.avlist.AVListImpl
      gov.nasa.worldwind.WWObjectImpl
          gov.nasa.worldwind.view.BasicView
              gov.nasa.worldwind.view.firstperson.BasicFlyView

All Implemented Interfaces:

AVList, MessageListener, Restorable, View, WWObject, PropertyChangeListener, EventListener

public class BasicFlyView
extends BasicView

This is a basic view that implements a yaw-pitch-roll model that can be applied to first-person style view applications (such as flight simulation).

Note that the pitch angle is defined as normal to the ground plane, not parallel as in most body axis representations. This is to be consistent with the definition of pitch within WorldWind. Applications will need to correct for pitch values by adding 90 degrees when commanding pitch (i.e. to get a horizontal view, enter 90 degrees pitch. To get straight down, enter 0 degrees).

Field Summary

protected static double	DEFAULT_MAX_ELEVATION
protected static Angle	DEFAULT_MAX_PITCH
protected static double	DEFAULT_MIN_ELEVATION
protected static Angle	DEFAULT_MIN_PITCH

Fields inherited from class gov.nasa.worldwind.view.BasicView

COLLISION_NUM_ITERATIONS, COLLISION_THRESHOLD, dc, DEFAULT_DEPTH_RESOLUTION, detectCollisions, eyePosition, farClipDistance, fieldOfView, frustum, globe, hadCollisions, heading, horizonDistance, lastEyePoint, lastEyePosition, lastForwardVector, lastFrustumInModelCoords, lastUpVector, MINIMUM_FAR_DISTANCE, MINIMUM_NEAR_DISTANCE, modelview, modelviewInv, nearClipDistance, pitch, projection, roll, viewInputHandler, viewLimits, viewport, viewStateID

Fields inherited from interface gov.nasa.worldwind.View

VIEW_STOPPED

Constructor Summary

BasicFlyView()

Method Summary

protected void	afterDoApply()
protected void	doApply(DrawContext dc)
Matrix	getModelViewMatrix(Position eyePosition, Position centerPosition)
ViewUtil.ViewState	getViewState(Position eyePosition, Position centerPosition)
protected void	loadConfigurationValues()
void	setEyePosition(Position eyePosition) Sets the geographic position of the eye.
void	setHeading(Angle heading) Sets the heading of the view.
void	setPitch(Angle pitch) Sets the pitch of the view.
void	setViewPropertyLimits(ViewPropertyLimits limits)
protected void	setViewState(ViewUtil.ViewState viewState)

Methods inherited from class gov.nasa.worldwind.view.BasicView

addAnimator, apply, computeEyePositionFromModelview, computeFarClipDistance, computeFarDistance, computeHorizonDistance, computeHorizonDistance, computeNearClipDistance, computeNearDistance, computePixelSizeAtDistance, computePositionFromScreenPoint, computeRayFromScreenPoint, copyViewState, doGetRestorableState, doRestoreState, getCenterPoint, getCenterPosition, getCurrentEyePoint, getCurrentEyePosition, getCurrentForwardVector, getDC, getEyePoint, getEyePosition, getFarClipDistance, getFieldOfView, getForwardVector, getFrustum, getFrustumInModelCoordinates, getGlobe, getHeading, getHorizonDistance, getModelviewMatrix, getNearClipDistance, getPitch, getProjectionMatrix, getRestorableState, getRoll, getUpVector, getViewInputHandler, getViewport, getViewPropertyLimits, getViewStateID, goTo, hadCollisions, isAnimating, isDetectCollisions, loadGLViewState, popReferenceCenter, project, project, pushReferenceCenter, restoreState, setDetectCollisions, setFarClipDistance, setFieldOfView, setGlobe, setNearClipDistance, setOrientation, setReferenceCenter, setRoll, setViewInputHandler, stopAnimations, stopMovement, unProject, unProject, updateModelViewStateID

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

Methods inherited from interface java.beans.PropertyChangeListener

propertyChange

Methods inherited from interface gov.nasa.worldwind.event.MessageListener

onMessage

Field Detail

DEFAULT_MAX_ELEVATION

protected static final double DEFAULT_MAX_ELEVATION

See Also:

Constant Field Values

DEFAULT_MAX_PITCH

protected static final Angle DEFAULT_MAX_PITCH

DEFAULT_MIN_ELEVATION

protected static final double DEFAULT_MIN_ELEVATION

See Also:

Constant Field Values

DEFAULT_MIN_PITCH

protected static final Angle DEFAULT_MIN_PITCH

Constructor Detail

BasicFlyView

public BasicFlyView()

Method Detail

afterDoApply

protected void afterDoApply()

doApply

protected void doApply(DrawContext dc)

Overrides:

doApply in class BasicView

getModelViewMatrix

public Matrix getModelViewMatrix(Position eyePosition,
                                 Position centerPosition)

getViewState

public ViewUtil.ViewState getViewState(Position eyePosition,
                                       Position centerPosition)

loadConfigurationValues

protected void loadConfigurationValues()

setEyePosition

public void setEyePosition(Position eyePosition)

Description copied from interface: View

Sets the geographic position of the eye.

Specified by:

setEyePosition in interface View

Overrides:

setEyePosition in class BasicView

Parameters:

eyePosition - the eye position.

setHeading

public void setHeading(Angle heading)

Description copied from interface: View

Sets the heading of the view. The implementation may interpret this command in whatever way it chooses.

Specified by:

setHeading in interface View

Overrides:

setHeading in class BasicView

Parameters:

heading - The direction to aim the view in degrees

setPitch

public void setPitch(Angle pitch)

Description copied from interface: View

Sets the pitch of the view. The implementation may interpret pitch as it chooses

Specified by:

setPitch in interface View

Overrides:

setPitch in class BasicView

Parameters:

pitch - The pitch of the view.

setViewPropertyLimits

public void setViewPropertyLimits(ViewPropertyLimits limits)

setViewState

protected void setViewState(ViewUtil.ViewState viewState)

Overrides:

setViewState in class BasicView