ExtentVisibilitySupport.ScreenExtent (NASA WorldWind)

java.lang.Object
- gov.nasa.worldwindx.examples.util.ExtentVisibilitySupport.ScreenExtent

Enclosing class:

ExtentVisibilitySupport
```
public static class ExtentVisibilitySupport.ScreenExtent
extends java.lang.Object
```
ScreenExtent represents a screen object's enclosing bounding box in screen coordinates, and that object's reference point in model coordinates. ExtentVisibilitySupport assumes that the relationship between the model reference point and the screen bounds are predicable: projecting the reference point into screen coordinates should yield a screen point with a predictable location relative to the screen bounds.

Field Summary

Fields
Modifier and Type Field Description

protected Vec4 modelReferencePoint

protected java.awt.Rectangle screenBounds

Constructor Summary

Constructors
Constructor	Description
`ScreenExtent(Vec4 modelReferencePoint, java.awt.Rectangle screenBounds)`	Constructs a new ScreenExtent with the specified model coordinate reference point and screen coordinate bounding box.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Vec4`	`getModelReferencePoint()`	Returns the model coordinate reference point.
`java.awt.Rectangle`	`getScreenBounds()`	Returns the screen coordinate bounding rectangle.

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

- Field Detail
  - modelReferencePoint
```
protected Vec4 modelReferencePoint
```
  - screenBounds
```
protected java.awt.Rectangle screenBounds
```
- Constructor Detail
  - ScreenExtent
```
public ScreenExtent(Vec4 modelReferencePoint,
                    java.awt.Rectangle screenBounds)
```
    Constructs a new ScreenExtent with the specified model coordinate reference point and screen coordinate bounding box. Either value may be null.
    
    Parameters:
    
    modelReferencePoint - the model coordinate reference point. A null reference is accepted.
    
    screenBounds - the screen coordinate bounding rectangle. A null reference is accepted.
- Method Detail
  - getModelReferencePoint
```
public Vec4 getModelReferencePoint()
```
    Returns the model coordinate reference point. This may return null, indicating this ScreenExtent has no model coordinate reference point.
    
    Returns:
    
    the reference point in model coordinates. May be null.
  - getScreenBounds
```
public java.awt.Rectangle getScreenBounds()
```
    Returns the screen coordinate bounding rectangle. This may return null, indicating the ScreenExtent has no screen coordinate bounds.
    
    Returns:
    
    the bounding rectangle in screen coordinates. May be null.