LinesOfSight (NASA WorldWind)

java.lang.Object
- gov.nasa.worldwindx.examples.ApplicationTemplate
- - gov.nasa.worldwindx.examples.lineofsight.LinesOfSight

```
public class LinesOfSight
extends ApplicationTemplate
```
Computes and displays line-of-sight intersections for terrain and renderables. Uses a Terrain object in order to determine accurate intersections relative to the highest-resolution elevation data associated with a specified globe.
This class uses a TerrainLineIntersector and a ShapeLineIntersector to compute the intersections.
Usage:
Shift-click: Calculate lines of sight for a position.
Ctrl-click: Cancel the running computation.
Alt-click: Re-run the most recent line of sight calculation.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class LinesOfSight.AppFrame

static class LinesOfSight.ShapeLoaderThread
- Nested classes/interfaces inherited from class gov.nasa.worldwindx.examples.ApplicationTemplate
  ApplicationTemplate.AppPanel

Field Summary

Fields
Modifier and Type	Field	Description
`protected static long`	`CACHE_SIZE`	The size of the Terrain's cache.
`protected static int`	`GRID_DIMENSION`	The number of cells along each edge of the grid.
`protected static int`	`GRID_POSITION_HEIGHT`
`protected static Angle`	`GRID_RADIUS`	The width and height in degrees of the grid used to calculate intersections.
`protected static int`	`NUM_SHAPE_THREADS`
`protected static int`	`NUM_TERRAIN_THREADS`
`protected static int`	`REFERENCE_POSITION_HEIGHT`
`protected static boolean`	`SHOW_ONLY_FIRST_INTERSECTIONS`
`protected static java.lang.Double`	`TARGET_RESOLUTION`	The desired terrain resolution to use in the intersection calculations.

Constructor Summary

Constructors
Constructor Description

LinesOfSight()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type Method Description

static void main(java.lang.String[] args)
- Methods inherited from class gov.nasa.worldwindx.examples.ApplicationTemplate
  insertAfterPlacenames, insertBeforeCompass, insertBeforeLayerName, insertBeforePlacenames, start
- Methods inherited from class java.lang.Object
  clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - GRID_RADIUS
```
protected static final Angle GRID_RADIUS
```
    The width and height in degrees of the grid used to calculate intersections.
  - GRID_DIMENSION
```
protected static final int GRID_DIMENSION
```
    The number of cells along each edge of the grid.
    
    See Also:
    
    Constant Field Values
  - REFERENCE_POSITION_HEIGHT
```
protected static final int REFERENCE_POSITION_HEIGHT
```
    See Also:
    
    Constant Field Values
  - GRID_POSITION_HEIGHT
```
protected static final int GRID_POSITION_HEIGHT
```
    See Also:
    
    Constant Field Values
  - TARGET_RESOLUTION
```
protected static final java.lang.Double TARGET_RESOLUTION
```
    The desired terrain resolution to use in the intersection calculations.
  - NUM_TERRAIN_THREADS
```
protected static final int NUM_TERRAIN_THREADS
```
    See Also:
    
    Constant Field Values
  - NUM_SHAPE_THREADS
```
protected static final int NUM_SHAPE_THREADS
```
    See Also:
    
    Constant Field Values
  - CACHE_SIZE
```
protected static final long CACHE_SIZE
```
    The size of the Terrain's cache. *
    
    See Also:
    
    Constant Field Values
  - SHOW_ONLY_FIRST_INTERSECTIONS
```
protected static final boolean SHOW_ONLY_FIRST_INTERSECTIONS
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - LinesOfSight
```
public LinesOfSight()
```
- Method Detail
  - main
```
public static void main(java.lang.String[] args)
```