ViewControlsSelectListener (WorldWindJava API)

java.lang.Object
- gov.nasa.worldwind.layers.ViewControlsSelectListener

All Implemented Interfaces:

SelectListener, java.util.EventListener
```
public class ViewControlsSelectListener
extends java.lang.Object
implements SelectListener
```
Controller for onscreen view controls displayed by ViewControlsLayer.

See Also:

ViewControlsLayer

Field Summary

Fields
Modifier and Type	Field and Description
`protected static int`	`DEFAULT_TIMER_DELAY`
`protected double`	`fovStep`
`protected double`	`headingStep`
`protected java.awt.Point`	`lastPickPoint`
`protected double`	`panStep`
`protected double`	`pitchStep`
`protected ScreenAnnotation`	`pressedControl`
`protected java.lang.String`	`pressedControlType`
`protected javax.swing.Timer`	`repeatTimer`
`protected double`	`veStep`
`protected ViewControlsLayer`	`viewControlsLayer`
`protected WorldWindow`	`wwd`
`protected double`	`zoomStep`

Constructor Summary

Constructors
Constructor and Description
`ViewControlsSelectListener(WorldWindow wwd, ViewControlsLayer layer)` Construct a controller for specified `WorldWindow` and `ViewControlsLayer`.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`protected Angle`	`computeLookHeading(OrbitView view, ScreenAnnotation control, double headingStep)`
`protected Angle`	`computeLookPitch(OrbitView view, ScreenAnnotation control, double pitchStep)`
`protected double`	`computeNewZoom(OrbitView view, double amount)`
`protected Angle`	`computePanAmount(Globe globe, OrbitView view, ScreenAnnotation control, double panStep)`
`protected Angle`	`computePanHeading(OrbitView view, ScreenAnnotation control)`
`protected Vec4`	`computeSurfacePoint(OrbitView view, Angle heading, Angle pitch)` Find out where on the terrain surface the eye would be looking at with the given heading and pitch angles.
`double`	`getFovIncrement()` Get the field of view increment factor.
`double`	`getHeadingIncrement()` Get the heading increment value in decimal degrees.
`double`	`getPanIncrement()` Get the panning distance factor.
`protected Layer`	`getParentLayer()` Returns this ViewControlsSelectListener's parent layer.
`double`	`getPitchIncrement()` Get the pitch increment value in decimal degrees.
`int`	`getRepeatTimerDelay()` Get the repeat timer delay in milliseconds.
`double`	`getVeIncrement()` Get the vertical exaggeration increment.
`double`	`getZoomIncrement()` Get the zooming distance factor.
`protected boolean`	`isPathCrossingAPole(LatLon p1, LatLon p2)`
`protected void`	`resetOrbitView(OrbitView view)` Reset the view to an orbit view state if in first person mode (zoom = 0)
`void`	`selected(SelectEvent event)`
`void`	`setFovIncrement(double value)` Set the field of view increment factor.
`void`	`setHeadingIncrement(double value)` Set the heading increment value in decimal degrees.
`void`	`setPanIncrement(double value)` Set the panning distance factor.
`void`	`setPitchIncrement(double value)` Set the pitch increment value in decimal degrees.
`void`	`setRepeatTimerDelay(int delay)` Set the repeat timer delay in milliseconds.
`protected void`	`setupFirstPersonView(OrbitView view)` Setup the view to a first person mode (zoom = 0)
`void`	`setVeIncrement(double value)` Set the vertical exaggeration increment.
`void`	`setZoomIncrement(double value)` Set the zoom distance factor.
`protected void`	`updateView(ScreenAnnotation control, java.lang.String controlType)`

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

- Field Detail
  - DEFAULT_TIMER_DELAY
```
protected static final int DEFAULT_TIMER_DELAY
```
    See Also:
    
    Constant Field Values
  - fovStep
```
protected double fovStep
```
  - headingStep
```
protected double headingStep
```
  - lastPickPoint
```
protected java.awt.Point lastPickPoint
```
  - panStep
```
protected double panStep
```
  - pitchStep
```
protected double pitchStep
```
  - pressedControl
```
protected ScreenAnnotation pressedControl
```
  - pressedControlType
```
protected java.lang.String pressedControlType
```
  - repeatTimer
```
protected javax.swing.Timer repeatTimer
```
  - veStep
```
protected double veStep
```
  - viewControlsLayer
```
protected ViewControlsLayer viewControlsLayer
```
  - wwd
```
protected WorldWindow wwd
```
  - zoomStep
```
protected double zoomStep
```
- Constructor Detail
  - ViewControlsSelectListener
```
public ViewControlsSelectListener(WorldWindow wwd,
                                  ViewControlsLayer layer)
```
    Construct a controller for specified WorldWindow and ViewControlsLayer.
    ViewControlLayers are not sharable among WorldWindows. A separate layer and controller must be established for each window that's to have view controls.
    
    Parameters:
    
    wwd - the WorldWindow the specified layer is associated with.
    
    layer - the layer to control.
- Method Detail
  - computeLookHeading
```
protected Angle computeLookHeading(OrbitView view,
                                   ScreenAnnotation control,
                                   double headingStep)
```
  - computeLookPitch
```
protected Angle computeLookPitch(OrbitView view,
                                 ScreenAnnotation control,
                                 double pitchStep)
```
  - computeNewZoom
```
protected double computeNewZoom(OrbitView view,
                                double amount)
```
  - computePanAmount
```
protected Angle computePanAmount(Globe globe,
                                 OrbitView view,
                                 ScreenAnnotation control,
                                 double panStep)
```
  - computePanHeading
```
protected Angle computePanHeading(OrbitView view,
                                  ScreenAnnotation control)
```
  - computeSurfacePoint
```
protected Vec4 computeSurfacePoint(OrbitView view,
                                   Angle heading,
                                   Angle pitch)
```
    Find out where on the terrain surface the eye would be looking at with the given heading and pitch angles.
    
    Parameters:
    
    view - the orbit view
    
    heading - heading direction clockwise from north.
    
    pitch - view pitch angle from the surface normal at the center point.
    
    Returns:
    
    the terrain surface point the view would be looking at in the viewport center.
  - getFovIncrement
```
public double getFovIncrement()
```
    Get the field of view increment factor.
    
    Returns:
    
    the field of view increment factor.
  - getHeadingIncrement
```
public double getHeadingIncrement()
```
    Get the heading increment value in decimal degrees.
    
    Returns:
    
    the heading increment value in decimal degrees.
  - getPanIncrement
```
public double getPanIncrement()
```
    Get the panning distance factor.
    
    Returns:
    
    the panning distance factor.
  - getParentLayer
```
protected Layer getParentLayer()
```
    Returns this ViewControlsSelectListener's parent layer. The parent layer is associated with picked objects, and is used to determine which SelectEvents thsi ViewControlsSelectListner responds to.
    
    Returns:
    
    this ViewControlsSelectListener's parent layer.
  - getPitchIncrement
```
public double getPitchIncrement()
```
    Get the pitch increment value in decimal degrees.
    
    Returns:
    
    the pitch increment value in decimal degrees.
  - getRepeatTimerDelay
```
public int getRepeatTimerDelay()
```
    Get the repeat timer delay in milliseconds.
    
    Returns:
    
    the repeat timer delay in milliseconds.
  - getVeIncrement
```
public double getVeIncrement()
```
    Get the vertical exaggeration increment.
    
    Returns:
    
    the vertical exaggeration increment.
  - getZoomIncrement
```
public double getZoomIncrement()
```
    Get the zooming distance factor.
    
    Returns:
    
    the zooming distance factor.
  - isPathCrossingAPole
```
protected boolean isPathCrossingAPole(LatLon p1,
                                      LatLon p2)
```
  - resetOrbitView
```
protected void resetOrbitView(OrbitView view)
```
    Reset the view to an orbit view state if in first person mode (zoom = 0)
    
    Parameters:
    
    view - the orbit view to reset
  - selected
```
public void selected(SelectEvent event)
```
    Specified by:
    
    selected in interface SelectListener
  - setFovIncrement
```
public void setFovIncrement(double value)
```
    Set the field of view increment factor. At each iteration the current field of view will be multiplied or divided by this value. Must be greater then or equal to one. Default value is 1.05.
    
    Parameters:
    
    value - the field of view increment factor.
    
    Throws:
    
    java.lang.IllegalArgumentException - if value less than one
  - setHeadingIncrement
```
public void setHeadingIncrement(double value)
```
    Set the heading increment value in decimal degrees. Doubling this value will double the heading change speed. Negating it will reverse the heading change direction. Default value is 1 degree.
    
    Parameters:
    
    value - the heading increment value in decimal degrees.
  - setPanIncrement
```
public void setPanIncrement(double value)
```
    Set the panning distance factor. Doubling this value will double the panning speed. Negating it will reverse the panning direction. Default value is .6.
    
    Parameters:
    
    value - the panning distance factor.
  - setPitchIncrement
```
public void setPitchIncrement(double value)
```
    Set the pitch increment value in decimal degrees. Doubling this value will double the pitch change speed. Must be positive. Default value is 1 degree.
    
    Parameters:
    
    value - the pitch increment value in decimal degrees.
    
    Throws:
    
    java.lang.IllegalArgumentException - if value less than zero
  - setRepeatTimerDelay
```
public void setRepeatTimerDelay(int delay)
```
    Set the repeat timer delay in milliseconds.
    
    Parameters:
    
    delay - the repeat timer delay in milliseconds.
    
    Throws:
    
    java.lang.IllegalArgumentException - if delay less than zero
  - setupFirstPersonView
```
protected void setupFirstPersonView(OrbitView view)
```
    Setup the view to a first person mode (zoom = 0)
    
    Parameters:
    
    view - the orbit view to set into a first person view.
  - setVeIncrement
```
public void setVeIncrement(double value)
```
    Set the vertical exaggeration increment. At each iteration the current vertical exaggeration will be increased or decreased by this amount. Must be greater than or equal to zero. Default value is 0.1.
    
    Parameters:
    
    value - the vertical exaggeration increment.
    
    Throws:
    
    java.lang.IllegalArgumentException - if value less than zero
  - setZoomIncrement
```
public void setZoomIncrement(double value)
```
    Set the zoom distance factor. Doubling this value will double the zooming speed. Negating it will reverse the zooming direction. Default value is .8.
    
    Parameters:
    
    value - the zooming distance factor.
  - updateView
```
protected void updateView(ScreenAnnotation control,
                          java.lang.String controlType)
```

Class ViewControlsSelectListener

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

DEFAULT_TIMER_DELAY

fovStep

headingStep

lastPickPoint

panStep

pitchStep

pressedControl

pressedControlType

repeatTimer

veStep

viewControlsLayer

wwd

zoomStep

Constructor Detail

ViewControlsSelectListener

Method Detail

computeLookHeading

computeLookPitch

computeNewZoom

computePanAmount

computePanHeading

computeSurfacePoint

getFovIncrement

getHeadingIncrement

getPanIncrement

getParentLayer

getPitchIncrement

getRepeatTimerDelay

getVeIncrement

getZoomIncrement

isPathCrossingAPole

resetOrbitView

selected

setFovIncrement

setHeadingIncrement

setPanIncrement

setPitchIncrement

setRepeatTimerDelay

setupFirstPersonView

setVeIncrement

setZoomIncrement

updateView