gov.nasa.worldwind.view.orbit

Interface OrbitView

All Superinterfaces:

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

All Known Implementing Classes:

BasicOrbitView

public interface OrbitView
extends View

Field Summary

Fields

Modifier and Type	Field and Description
static String	CENTER_STOPPED

Fields inherited from interface gov.nasa.worldwind.View

VIEW_STOPPED

Method Summary

Modifier and Type	Method and Description
boolean	canFocusOnViewportCenter() Implementations are expected to determines if the OrbitView can set the center of rotation for heading and pitch changes to the viewport center intersection with the globe surface via a call to focusOnViewportCenter().
void	focusOnViewportCenter() Implementations are expected to set the center of rotation for heading and pitch at the intersection of a ray originates at the eye, and passes through the center of the viewport with the globe surface.
Position	getCenterPosition() Get the center position of the OrbitView.
OrbitViewLimits	getOrbitViewLimits() Get the limits for this OrbitView.
double	getZoom() Get the zoom value for the OrbitView.
boolean	hadCollisions() Returns whether or not a collision has occurred since the last call to hadCollisions.
boolean	isDetectCollisions() Returns whether the this View will detect collisions with other objects, such as the surface geometry.
void	setCenterPosition(Position center) Sets the center position of the OrbitView.
void	setDetectCollisions(boolean detectCollisions) Sets whether or not this View will detect collisions with other objects, such as the surface geometry.
void	setOrbitViewLimits(OrbitViewLimits limits) Set the limits for this OrbitView.
void	setZoom(double zoom) Set the zoom value for the OrbitVeiw.
void	stopMovementOnCenter() Stop any changes to the center position.

Methods inherited from interface gov.nasa.worldwind.View

addAnimator, apply, computePixelSizeAtDistance, computePositionFromScreenPoint, computeRayFromScreenPoint, copyViewState, getCenterPoint, getCurrentEyePoint, getCurrentEyePosition, getEyePoint, getEyePosition, getFarClipDistance, getFieldOfView, getForwardVector, getFrustum, getFrustumInModelCoordinates, getGlobe, getHeading, getHorizonDistance, getModelviewMatrix, getNearClipDistance, getPitch, getProjectionMatrix, getRoll, getUpVector, getViewInputHandler, getViewport, getViewPropertyLimits, getViewStateID, goTo, isAnimating, popReferenceCenter, project, pushReferenceCenter, setEyePosition, setFieldOfView, setHeading, setOrientation, setPitch, setReferenceCenter, setRoll, stopAnimations, stopMovement, unProject

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

Methods inherited from interface gov.nasa.worldwind.Restorable

getRestorableState, restoreState

Field Detail

CENTER_STOPPED

static final String CENTER_STOPPED

See Also:

Constant Field Values

Method Detail

canFocusOnViewportCenter

boolean canFocusOnViewportCenter()

Implementations are expected to determines if the OrbitView can set the center of rotation for heading and pitch changes to the viewport center intersection with the globe surface via a call to focusOnViewportCenter().

Returns:

true if the OrbitView implementation can focus on the viewport center.

focusOnViewportCenter

void focusOnViewportCenter()

Implementations are expected to set the center of rotation for heading and pitch at the intersection of a ray originates at the eye, and passes through the center of the viewport with the globe surface.

getCenterPosition

Position getCenterPosition()

Get the center position of the OrbitView. The center position is used as the point about which the heading and pitch rotate. It is defined by the intersection of a ray from the eye position through the center of the viewport with the surface of the globe.

Returns:

the center position.

getOrbitViewLimits

OrbitViewLimits getOrbitViewLimits()

Get the limits for this OrbitView. OrbitView has state values that augment the state values of a View. Specifically, zoom and center position. OrbitViewLimits enables the limiting of those values in addition the the derived BasicViewPropertyLimits state.

Returns:

The active view limits.

getZoom

double getZoom()

Get the zoom value for the OrbitView. The zoom value is the distance between the eye position and the center position.

Returns:

the zoom value

hadCollisions

boolean hadCollisions()

Returns whether or not a collision has occurred since the last call to hadCollisions. If isDetectCollisions() is false, collisions will not be detected and hadCollisions will always return false.

Returns:

true if a collision has occurred since the last call; false otherwise.

isDetectCollisions

boolean isDetectCollisions()

Returns whether the this View will detect collisions with other objects, such as the surface geometry. If true, implementations may also automatically resolve any detected collisions.

Returns:

true If this View will detect collisions; false otherwise.

setCenterPosition

void setCenterPosition(Position center)

Sets the center position of the OrbitView. The center position is used as the point about which the heading and pitch rotate. It is defined by the intersection of a ray from the eye position through the center of the viewport with the surface of the globe.

Parameters:

center -

setDetectCollisions

void setDetectCollisions(boolean detectCollisions)

Sets whether or not this View will detect collisions with other objects, such as the surface geometry. If detectCollisions is true, implementations may also automatically resolve any detected collisions.

Parameters:

detectCollisions - If true, this View will resolve collisions; otherwise this View will ignore collisions.

setOrbitViewLimits

void setOrbitViewLimits(OrbitViewLimits limits)

Set the limits for this OrbitView. OrbitView has state values that augment the state values of a View. Specifically, zoom and center position. OrbitViewLimits enables the limiting of those values in addition the the derived BasicViewPropertyLimits state.

Parameters:

limits -

setZoom

void setZoom(double zoom)

Set the zoom value for the OrbitVeiw. The zoom value is the distance between the eye position and the center position.

Parameters:

zoom -

stopMovementOnCenter

void stopMovementOnCenter()

Stop any changes to the center position.