java.lang.Object
- com.esri.arcgisruntime.geoanalysis.Analysis
- - com.esri.arcgisruntime.geoanalysis.LineOfSight

Direct Known Subclasses:

GeoElementLineOfSight, LocationLineOfSight
```
public abstract class LineOfSight
extends Analysis
```
Line of Sight analysis calculates segments of visibility between two points.
Maximum number of line of sights per GeoView is 64. Line of sights in excess of 64 will not be rendered.

Since:

10.2.0

Property Summary

Properties
Type	Property	Description
`static ObjectProperty<Color>`	`obstructedColor`	The color used to render segments that are obstructed along the line of sight.
`static ObjectProperty<Color>`	`visibleColor`	The color used to render segments that are visible along LineOfSight analysis results.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`LineOfSight.TargetVisibility`	Specifies the target's visibility.
`static class`	`LineOfSight.TargetVisibilityChangedEvent`	An event indicating that the target visibility has changed.
`static interface`	`LineOfSight.TargetVisibilityChangedListener`	Listener for changes in target visibility.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`void`	`addTargetVisibilityChangedListener(LineOfSight.TargetVisibilityChangedListener listener)`	Adds a listener for when the target visibility has changed.
`static float`	`getLineWidth()`	Gets the line width used to render line of sight.
`static Color`	`getObstructedColor()`	Gets the value of the property obstructedColor.
`LineOfSight.TargetVisibility`	`getTargetVisibility()`	Gets the target's visibility.
`static Color`	`getVisibleColor()`	Gets the value of the property visibleColor.
`static ObjectProperty<Color>`	`obstructedColorProperty()`	The color used to render segments that are obstructed along the line of sight.
`boolean`	`removeTargetVisibilityChangedListener(LineOfSight.TargetVisibilityChangedListener listener)`	Removes a target visibility changed listener.
`static void`	`setLineWidth(float lineWidth)`	Sets the line width used to render line of sight.
`static void`	`setObstructedColor(int obstructedColor)`	Deprecated, for removal: This API element is subject to removal in a future version. as of 200.0.0, replaced by `setObstructedColor(Color)`
`static void`	`setObstructedColor(Color color)`	Sets the value of the property obstructedColor.
`static void`	`setVisibleColor(int visibleColor)`	Deprecated, for removal: This API element is subject to removal in a future version. as of 200.0.0, replaced by `setVisibleColor(Color)`
`static void`	`setVisibleColor(Color color)`	Sets the value of the property visibleColor.
`static ObjectProperty<Color>`	`visibleColorProperty()`	The color used to render segments that are visible along LineOfSight analysis results.

Methods inherited from class com.esri.arcgisruntime.geoanalysis.Analysis
isVisible, setVisible

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

- Property Detail
  - visibleColor
```
public static ObjectProperty<Color> visibleColorProperty
```
    The color used to render segments that are visible along LineOfSight analysis results.
    Sections of the line between the observer and the target that are visible are drawn with the specified color. This property is applied to all LineOfSight analyses in the view.
    Default is Color.LIME.
    Attempting to set the color to null will throw an exception.
    
    Since:
    
    200.0.0
    
    See Also:
    
    getVisibleColor(), setVisibleColor(Color)
  - obstructedColor
```
public static ObjectProperty<Color> obstructedColorProperty
```
    The color used to render segments that are obstructed along the line of sight.
    Sections of the line between the observer and the target that are obstructed (not visible) are drawn with the specified color. This property is applied to all LineOfSight analyses in the view.
    Default is Color.RED.
    Attempting to set the color to null will throw an exception.
    
    Since:
    
    200.0.0
    
    See Also:
    
    getObstructedColor(), setObstructedColor(Color)
- Method Detail
  - visibleColorProperty
```
public static ObjectProperty<Color> visibleColorProperty()
```
    The color used to render segments that are visible along LineOfSight analysis results.
    Sections of the line between the observer and the target that are visible are drawn with the specified color. This property is applied to all LineOfSight analyses in the view.
    Default is Color.LIME.
    Attempting to set the color to null will throw an exception.
    
    Since:
    
    200.0.0
    
    See Also:
    
    getVisibleColor(), setVisibleColor(Color)
  - getVisibleColor
```
public static Color getVisibleColor()
```
    Gets the value of the property visibleColor.
    
    Property description:
    
    The color used to render segments that are visible along LineOfSight analysis results.
    Sections of the line between the observer and the target that are visible are drawn with the specified color. This property is applied to all LineOfSight analyses in the view.
    Default is Color.LIME.
    Attempting to set the color to null will throw an exception.
    
    Since:
    
    200.0.0
  - setVisibleColor
```
public static void setVisibleColor(Color color)
```
    Sets the value of the property visibleColor.
    
    Property description:
    
    The color used to render segments that are visible along LineOfSight analysis results.
    Sections of the line between the observer and the target that are visible are drawn with the specified color. This property is applied to all LineOfSight analyses in the view.
    Default is Color.LIME.
    Attempting to set the color to null will throw an exception.
    
    Since:
    
    200.0.0
  - setVisibleColor
```
@Deprecated(since="200.0.0",
            forRemoval=true)
public static void setVisibleColor(int visibleColor)
```
    Deprecated, for removal: This API element is subject to removal in a future version.
    as of 200.0.0, replaced by setVisibleColor(Color)
    
    Sets the color used to render segments that are visible along the line of sight.
    This is applied to all instances.
    
    Parameters:
    
    visibleColor - the color used to render segments that are visible along the line of sight, in 0xAARRGGBB format
    
    Since:
    
    10.2.0
  - obstructedColorProperty
```
public static ObjectProperty<Color> obstructedColorProperty()
```
    The color used to render segments that are obstructed along the line of sight.
    Sections of the line between the observer and the target that are obstructed (not visible) are drawn with the specified color. This property is applied to all LineOfSight analyses in the view.
    Default is Color.RED.
    Attempting to set the color to null will throw an exception.
    
    Since:
    
    200.0.0
    
    See Also:
    
    getObstructedColor(), setObstructedColor(Color)
  - getObstructedColor
```
public static Color getObstructedColor()
```
    Gets the value of the property obstructedColor.
    
    Property description:
    
    The color used to render segments that are obstructed along the line of sight.
    Sections of the line between the observer and the target that are obstructed (not visible) are drawn with the specified color. This property is applied to all LineOfSight analyses in the view.
    Default is Color.RED.
    Attempting to set the color to null will throw an exception.
    
    Since:
    
    200.0.0
  - setObstructedColor
```
public static void setObstructedColor(Color color)
```
    Sets the value of the property obstructedColor.
    
    Property description:
    
    The color used to render segments that are obstructed along the line of sight.
    Sections of the line between the observer and the target that are obstructed (not visible) are drawn with the specified color. This property is applied to all LineOfSight analyses in the view.
    Default is Color.RED.
    Attempting to set the color to null will throw an exception.
    
    Since:
    
    200.0.0
  - setObstructedColor
```
@Deprecated(since="200.0.0",
            forRemoval=true)
public static void setObstructedColor(int obstructedColor)
```
    Deprecated, for removal: This API element is subject to removal in a future version.
    as of 200.0.0, replaced by setObstructedColor(Color)
    
    Sets the color used to render segments that are obstructed along the line of sight.
    This is applied to all instances.
    
    Parameters:
    
    obstructedColor - the color used to render segments that are obstructed along the line of sight, in 0xAARRGGBB format
    
    Since:
    
    10.2.0
  - getLineWidth
```
public static float getLineWidth()
```
    Gets the line width used to render line of sight.
    Default is 1.0.
    
    Returns:
    
    the line width used to render line of sight, in dp
    
    Since:
    
    10.2.0
  - setLineWidth
```
public static void setLineWidth(float lineWidth)
```
    Sets the line width used to render line of sight.
    Default is 1.0.
    This is applied to all instances.
    
    Parameters:
    
    lineWidth - the line width used to render line of sight, in dp
    
    Since:
    
    10.2.0
  - getTargetVisibility
```
public LineOfSight.TargetVisibility getTargetVisibility()
```
    Gets the target's visibility.
    
    Returns:
    
    the target's visibility
    
    Since:
    
    10.2.0
  - addTargetVisibilityChangedListener
```
public void addTargetVisibilityChangedListener(LineOfSight.TargetVisibilityChangedListener listener)
```
    Adds a listener for when the target visibility has changed.
    
    Parameters:
    
    listener - the listener
    
    Throws:
    
    java.lang.IllegalArgumentException - if the listener is null
    
    Since:
    
    100.2.0
  - removeTargetVisibilityChangedListener
```
public boolean removeTargetVisibilityChangedListener(LineOfSight.TargetVisibilityChangedListener listener)
```
    Removes a target visibility changed listener.
    
    Parameters:
    
    listener - the listener
    
    Returns:
    
    true if successful, otherwise false
    
    Since:
    
    100.2.0

Class LineOfSight

Property Summary

Nested Class Summary

Method Summary

Methods inherited from class com.esri.arcgisruntime.geoanalysis.Analysis

Methods inherited from class java.lang.Object

Property Detail

visibleColor

obstructedColor

Method Detail

visibleColorProperty

getVisibleColor

setVisibleColor

setVisibleColor

obstructedColorProperty

getObstructedColor

setObstructedColor

setObstructedColor

getLineWidth

setLineWidth

getTargetVisibility

addTargetVisibilityChangedListener

removeTargetVisibilityChangedListener