AnalyticSurface (NASA World Wind)

java.lang.Object
- gov.nasa.worldwindx.examples.analytics.AnalyticSurface

All Implemented Interfaces:: PreRenderable, Renderable

Direct Known Subclasses:: ExportableAnalyticSurface

public class AnalyticSurface
extends Object
implements Renderable, PreRenderable

AnalyticSurface represents a connected grid of geographic locations, covering a specified Sector at a specified base altitude in meters. The number of grid locations is defined by the AnalyticSurface's dimensions. The default dimensions are (10, 10). Callers specify the dimensions by using one of the constructors accepting width and height, or by invoking setDimensions(int, int). Each grid point has the following set of attributes:

Scalar value : the grid point's height relative to the surface's base altitude, both in meters
Color : the grid point's RGBA color components

Callers specify the attributes at each grid point by invoking setValues(Iterable) with an Iterable of AnalyticSurface.GridPointAttributes. Grid points are assigned attributes from this iterable staring at the upper left hand corner, and proceeding in row-first order across the grid. The iterable should contain at least width * height values, where width and height are the AnalyticSurface's grid dimensions. If the caller does not specify any GridPointAttributes, or the caller specified iterable contains too few values, the unassigned grid points are given default attributes: the default scalar value is 0, and the default color is Color.BLACK.

Surface Altitude

AnalyticSurface's altitude can vary at each grid point. The altitude of each grid point depends on four properties: the altitude mode, the surface altitude, the vertical scale, and the scalar value from GridPointAttributes. The following table outlines how the altitude at each grid point is computed for each altitude mode:

Altitude Mode	Grid Point Altitude
WorldWind.ABSOLUTE (default)	surface altitude + (vertical scale * scalar value from GridPointAttributes)
WorldWind.RELATIVE_TO_GROUND	terrain height at grid point + surface altitude + (vertical scale * scalar value from GridPointAttributes)
WorldWind.CLAMP_TO_GROUND	terrain height at grid point

Note that when the altitude mode is WorldWind.CLAMP_TO_GROUND the surface altitude, vertical scale, and the scalar value from GridPointAttributes are ignored. In this altitude mode only the Sector, dimensions, and color from GridPointAttributes are used.

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`protected static class`	`AnalyticSurface.AnalyticSurfaceObject`
`protected static class`	`AnalyticSurface.ClampToGroundSurface`
`static interface`	`AnalyticSurface.GridPointAttributes` GridPointAttributes defines the properties associated with a single grid point of an AnalyticSurface.
`protected static class`	`AnalyticSurface.OrderedSurface`
`protected static class`	`AnalyticSurface.RenderInfo`
`protected static class`	`AnalyticSurface.ShadowSurface`

Field Summary

Fields
Modifier and Type	Field and Description
`protected double`	`altitude`
`protected int`	`altitudeMode`
`protected AnalyticSurface.AnalyticSurfaceObject`	`clampToGroundSurface`
`protected Layer`	`clientLayer`
`protected static double`	`DEFAULT_ALTITUDE`
`protected static int`	`DEFAULT_ALTITUDE_MODE` The default altitude mode.
`protected static Color`	`DEFAULT_COLOR`
`protected static int`	`DEFAULT_DIMENSION`
`protected static AnalyticSurface.GridPointAttributes`	`DEFAULT_GRID_POINT_ATTRIBUTES`
`protected static double`	`DEFAULT_VALUE`
`protected boolean`	`expired`
`protected double[]`	`extremeValues`
`protected Object`	`globeStateKey`
`protected int`	`height`
`protected Object`	`pickObject`
`protected PickSupport`	`pickSupport`
`protected Vec4`	`referencePoint`
`protected Position`	`referencePos`
`protected long`	`regenTime`
`protected static long`	`RELATIVE_TO_GROUND_REGEN_PERIOD` The time period between surface regeneration when altitude mode is relative-to-ground.
`protected Sector`	`sector`
`protected AnalyticSurface.AnalyticSurfaceObject`	`shadowSurface`
`protected AnalyticSurfaceAttributes`	`surfaceAttributes`
`protected AnalyticSurface.RenderInfo`	`surfaceRenderInfo`
`protected boolean`	`updateFailed`
`protected Iterable<? extends AnalyticSurface.GridPointAttributes>`	`values`
`protected double`	`verticalScale`
`protected boolean`	`visible`
`protected int`	`width`

Constructor Summary

Constructors
Constructor and Description
`AnalyticSurface()` Constructs a new AnalyticSurface with the default Sector `Sector.EMPTY_SECTOR`, the default altitude of 0 meters, default dimensions of `(10, 10)`, and default `AnalyticSurface.GridPointAttributes`.
`AnalyticSurface(int width, int height)` Constructs a new AnalyticSurface with the specified grid dimensions.
`AnalyticSurface(Sector sector, double altitude)` Constructs a new AnalyticSurface with the specified `Sector` and base altitude in meters.
`AnalyticSurface(Sector sector, double altitude, int width, int height)` Constructs a new AnalyticSurface with the specified `Sector`, base altitude in meters, and grid dimensions.
`AnalyticSurface(Sector sector, double altitude, int width, int height, Iterable<? extends AnalyticSurface.GridPointAttributes> iterable)` Constructs a new AnalyticSurface with the specified `Sector`, base altitude in meters, grid dimensions, and iterable of GridPointAttributes.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`protected void`	`beginDrawing(DrawContext dc)`
`protected void`	`bind(DrawContext dc)`
`static double[]`	`computeExtremeValues(Iterable<? extends AnalyticSurface.GridPointAttributes> iterable)` Returns the minimum and maximum values in the specified iterable of `AnalyticSurface.GridPointAttributes`.
`static double[]`	`computeExtremeValues(Iterable<? extends AnalyticSurface.GridPointAttributes> iterable, double missingDataSignal)` Returns the minimum and maximum values in the specified iterable of `AnalyticSurface.GridPointAttributes`.
`protected Vec4`	`computeSurfacePoint(DrawContext dc, Angle lat, Angle lon, double value)`
`protected AnalyticSurface.AnalyticSurfaceObject`	`createClampToGroundSurface()`
`static AnalyticSurface.GridPointAttributes`	`createColorGradientAttributes(double value, double minValue, double maxValue, double minHue, double maxHue)` Returns a new instance of `AnalyticSurface.GridPointAttributes` with a Color computed from the specified value and value range.
`static Iterable<? extends AnalyticSurface.GridPointAttributes>`	`createColorGradientValues(BufferWrapper values, double missingDataSignal, double minValue, double maxValue, double minHue, double maxHue)` Returns a new iterable populated with `AnalyticSurface.GridPointAttributes` computed by invoking `createColorGradientAttributes(double, double, double, double, double)` for each double value in the speicfied `BufferWrapper`.
`static Iterable<? extends AnalyticSurface.GridPointAttributes>`	`createDefaultValues(int count)` Returns a new iterable populated with the default `AnalyticSurface.GridPointAttributes`.
`static AnalyticSurface.GridPointAttributes`	`createGridPointAttributes(double value, Color color)` Returns a new instance of `AnalyticSurface.GridPointAttributes` with the specified value and color.
`protected AnalyticSurface.AnalyticSurfaceObject`	`createShadowSurface()`
`protected void`	`doDrawOrderedRenderable(DrawContext dc)`
`protected void`	`doUpdate(DrawContext dc)`
`protected void`	`drawInterior(DrawContext dc)`
`protected void`	`drawOrderedRenderable(DrawContext dc)`
`protected void`	`drawOutline(DrawContext dc)`
`protected void`	`drawSurfaceObjects(DrawContext dc)`
`protected void`	`endDrawing(DrawContext dc)`
`double`	`getAltitude()` Returns this surface's base altitude, in meters.
`int`	`getAltitudeMode()` Returns the surface's altitude mode, one of `WorldWind.CLAMP_TO_GROUND`, `WorldWind.RELATIVE_TO_GROUND`, or `WorldWind.ABSOLUTE`.
`Layer`	`getClientLayer()` Returns the layer associated with this surface during picking.
`int[]`	`getDimensions()` Returns the number of horizontal and vertical points composing this surface as an array with two values.
`Extent`	`getExtent(DrawContext dc)` Returns this surface's extent in model coordinates.
`Object`	`getPickObject()` Returns the object which is associated with this surface during picking.
`Sector`	`getSector()` Returns the `Sector` defining the geographic boundary of this surface.
`AnalyticSurfaceAttributes`	`getSurfaceAttributes()` Returns a copy of the rendering attributes associated with this surface.
`Iterable<? extends AnalyticSurface.GridPointAttributes>`	`getValues()` Returns the surface's iterable of `AnalyticSurface.GridPointAttributes`.
`double`	`getVerticalScale()` Returns the scale applied to the value at each grid point.
`protected boolean`	`intersectsFrustum(DrawContext dc)` Test if this AnalyticSurface intersects the specified draw context's frustum.
`protected boolean`	`isExpired(DrawContext dc)`
`boolean`	`isVisible()` Returns true if the surface is visible in the scene, and false otherwise.
`protected void`	`makeOrderedRenderable(DrawContext dc)`
`void`	`preRender(DrawContext dc)`
`protected void`	`preRenderSurfaceObjects(DrawContext dc)`
`void`	`render(DrawContext dc)` Causes this `Renderable` to render itself using the provided draw context.
`void`	`setAltitude(double altitude)` Sets this surface's base altitude, in meters.
`void`	`setAltitudeMode(int altitudeMode)` Specifies the surface's altitude mode, one of `WorldWind.CLAMP_TO_GROUND`, `WorldWind.RELATIVE_TO_GROUND`, or `WorldWind.ABSOLUTE`.
`void`	`setClientLayer(Layer layer)` Sets the layer associated with this surface during picking.
`void`	`setDimensions(int width, int height)` Sets the number of horizontal and vertical points composing this surface.
`protected void`	`setExpired(boolean expired)`
`void`	`setPickObject(Object pickObject)` Sets the object associated with this surface during picking.
`void`	`setSector(Sector sector)` Sets this surface's geographic boundary, as a `Sector`.
`void`	`setSurfaceAttributes(AnalyticSurfaceAttributes attributes)` Sets the rendering attributes associated with this surface.
`void`	`setValues(Iterable<? extends AnalyticSurface.GridPointAttributes> iterable)` Sets this surface's iterable of `AnalyticSurface.GridPointAttributes`.
`void`	`setVerticalScale(double scale)` Sets the scale applied to the value at each grid point.
`void`	`setVisible(boolean visible)` Sets whether or not the surface is visible in the scene.
`protected void`	`update(DrawContext dc)`
`protected void`	`updateNextSurfacePoint(DrawContext dc, Angle lat, Angle lon, AnalyticSurface.GridPointAttributes attr, AnalyticSurface.RenderInfo outRenderInfo)`
`protected void`	`updateSurfaceNormals(AnalyticSurface.RenderInfo outRenderInfo)`
`protected void`	`updateSurfacePoints(DrawContext dc, AnalyticSurface.RenderInfo outRenderInfo)`

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

- Field Detail
  - altitude
```
protected double altitude
```
  - altitudeMode
```
protected int altitudeMode
```
  - clampToGroundSurface
```
protected AnalyticSurface.AnalyticSurfaceObject clampToGroundSurface
```
  - clientLayer
```
protected Layer clientLayer
```
  - DEFAULT_ALTITUDE
```
protected static final double DEFAULT_ALTITUDE
```
    See Also:
    
    Constant Field Values
  - DEFAULT_ALTITUDE_MODE
```
protected static final int DEFAULT_ALTITUDE_MODE
```
    The default altitude mode.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_COLOR
```
protected static final Color DEFAULT_COLOR
```
  - DEFAULT_DIMENSION
```
protected static final int DEFAULT_DIMENSION
```
    See Also:
    
    Constant Field Values
  - DEFAULT_GRID_POINT_ATTRIBUTES
```
protected static final AnalyticSurface.GridPointAttributes DEFAULT_GRID_POINT_ATTRIBUTES
```
  - DEFAULT_VALUE
```
protected static final double DEFAULT_VALUE
```
    See Also:
    
    Constant Field Values
  - expired
```
protected boolean expired
```
  - extremeValues
```
protected double[] extremeValues
```
  - globeStateKey
```
protected Object globeStateKey
```
  - height
```
protected int height
```
  - pickObject
```
protected Object pickObject
```
  - pickSupport
```
protected final PickSupport pickSupport
```
  - referencePoint
```
protected Vec4 referencePoint
```
  - referencePos
```
protected Position referencePos
```
  - regenTime
```
protected long regenTime
```
  - RELATIVE_TO_GROUND_REGEN_PERIOD
```
protected static final long RELATIVE_TO_GROUND_REGEN_PERIOD
```
    The time period between surface regeneration when altitude mode is relative-to-ground.
    
    See Also:
    
    Constant Field Values
  - sector
```
protected Sector sector
```
  - shadowSurface
```
protected AnalyticSurface.AnalyticSurfaceObject shadowSurface
```
  - surfaceAttributes
```
protected AnalyticSurfaceAttributes surfaceAttributes
```
  - surfaceRenderInfo
```
protected AnalyticSurface.RenderInfo surfaceRenderInfo
```
  - updateFailed
```
protected boolean updateFailed
```
  - values
```
protected Iterable<? extends AnalyticSurface.GridPointAttributes> values
```
  - verticalScale
```
protected double verticalScale
```
  - visible
```
protected boolean visible
```
  - width
```
protected int width
```
- Constructor Detail
  - AnalyticSurface
```
public AnalyticSurface()
```
    Constructs a new AnalyticSurface with the default Sector Sector.EMPTY_SECTOR, the default altitude of 0 meters, default dimensions of (10, 10), and default AnalyticSurface.GridPointAttributes.
  - AnalyticSurface
```
public AnalyticSurface(int width,
                       int height)
```
    Constructs a new AnalyticSurface with the specified grid dimensions. The new AnalyticSurface is has the default Sector Sector.EMPTY_SECTOR, the default altitude of 0 meters, and default AnalyticSurface.GridPointAttributes.
    
    Parameters:
    
    width - the surface grid width, in number of grid points.
    
    height - the surface grid height, in number of grid points.
    
    Throws:
    
    IllegalArgumentException - if the sector is null.
  - AnalyticSurface
```
public AnalyticSurface(Sector sector,
                       double altitude)
```
    Constructs a new AnalyticSurface with the specified Sector and base altitude in meters. The new AnalyticSurface has default dimensions of (10, 10), and default AnalyticSurface.GridPointAttributes.
    
    Parameters:
    
    sector - the Sector which defines the surface's geographic region.
    
    altitude - the base altitude to place the surface at, in meters.
    
    Throws:
    
    IllegalArgumentException - if the sector is null.
  - AnalyticSurface
```
public AnalyticSurface(Sector sector,
                       double altitude,
                       int width,
                       int height)
```
    Constructs a new AnalyticSurface with the specified Sector, base altitude in meters, and grid dimensions. The new AnalyticSurface has the default AnalyticSurface.GridPointAttributes.
    
    Parameters:
    
    sector - the Sector which defines the surface's geographic region.
    
    altitude - the base altitude to place the surface at, in meters.
    
    width - the surface grid width, in number of grid points.
    
    height - the surface grid height, in number of grid points.
    
    Throws:
    
    IllegalArgumentException - if the sector is null, if the width is less than 1, or if the height is less than 1.
  - AnalyticSurface
```
public AnalyticSurface(Sector sector,
                       double altitude,
                       int width,
                       int height,
                       Iterable<? extends AnalyticSurface.GridPointAttributes> iterable)
```
    Constructs a new AnalyticSurface with the specified Sector, base altitude in meters, grid dimensions, and iterable of GridPointAttributes. The iterable should contain at least with * height non-null GridPointAttributes.
    
    Parameters:
    
    sector - the Sector which defines the surface's geographic region.
    
    altitude - the base altitude to place the surface at, in meters.
    
    width - the surface grid width, in number of grid points.
    
    height - the surface grid height, in number of grid points.
    
    iterable - the attributes associated with each grid point.
    
    Throws:
    
    IllegalArgumentException - if the sector is null, if the width is less than 1, if the height is less than 1, or if the iterable is null.
- Method Detail
  - beginDrawing
```
protected void beginDrawing(DrawContext dc)
```
  - bind
```
protected void bind(DrawContext dc)
```
  - computeExtremeValues
```
public static double[] computeExtremeValues(Iterable<? extends AnalyticSurface.GridPointAttributes> iterable)
```
    Returns the minimum and maximum values in the specified iterable of AnalyticSurface.GridPointAttributes. Values equivalent to Double.NaN are ignored. This returns null if the buffer is empty or contains only NaN values.
    
    Parameters:
    
    iterable - the GridPointAttributes to search for the minimum and maximum value.
    
    Returns:
    
    an array containing the minimum value in index 0 and the maximum value in index 1, or null if the iterable is empty or contains only NaN values.
    
    Throws:
    
    IllegalArgumentException - if the iterable is null.
  - computeExtremeValues
```
public static double[] computeExtremeValues(Iterable<? extends AnalyticSurface.GridPointAttributes> iterable,
                                            double missingDataSignal)
```
    Returns the minimum and maximum values in the specified iterable of AnalyticSurface.GridPointAttributes. Values equivalent to the specified missingDataSignal are ignored. This returns null if the iterable is empty or contains only missing values.
    
    Parameters:
    
    iterable - the GridPointAttributes to search for the minimum and maximum value.
    
    missingDataSignal - the number indicating a specific value to ignore.
    
    Returns:
    
    an array containing the minimum value in index 0 and the maximum value in index 1, or null if the iterable is empty or contains only missing values.
    
    Throws:
    
    IllegalArgumentException - if the iterable is null.
  - computeSurfacePoint
```
protected Vec4 computeSurfacePoint(DrawContext dc,
                                   Angle lat,
                                   Angle lon,
                                   double value)
```
  - createClampToGroundSurface
```
protected AnalyticSurface.AnalyticSurfaceObject createClampToGroundSurface()
```
  - createColorGradientAttributes
```
public static AnalyticSurface.GridPointAttributes createColorGradientAttributes(double value,
                                                                                double minValue,
                                                                                double maxValue,
                                                                                double minHue,
                                                                                double maxHue)
```
    Returns a new instance of AnalyticSurface.GridPointAttributes with a Color computed from the specified value and value range. The color's RGB components are computed by mapping value's relative position in the range [minValue, maxValue] to the range of color hues [minHue, maxHue]. The color's Alpha component is computed by mapping the values's relative position in the range [minValue, minValue + (maxValue - minValue) / 10] to the range [0, 1]. This has the effect of interpolating hue and alpha based on the grid point value.
    
    Parameters:
    
    value - the new GridPointAttributes' value.
    
    minValue - the minimum value.
    
    maxValue - the maximum value.
    
    minHue - the mimimum color hue, corresponding to the minimum value.
    
    maxHue - the maximum color hue, corresponding to the maximum value.
    
    Returns:
    
    a new GridPointAttributes defined by the specified value, value range, and color hue range.
  - createColorGradientValues
```
public static Iterable<? extends AnalyticSurface.GridPointAttributes> createColorGradientValues(BufferWrapper values,
                                                                                                double missingDataSignal,
                                                                                                double minValue,
                                                                                                double maxValue,
                                                                                                double minHue,
                                                                                                double maxHue)
```
    Returns a new iterable populated with AnalyticSurface.GridPointAttributes computed by invoking createColorGradientAttributes(double, double, double, double, double) for each double value in the speicfied BufferWrapper. Values equivalent to the specified missingDataSignal are replaced with the specified minValue.
    
    Parameters:
    
    values - the buffer of values.
    
    missingDataSignal - the number indicating a specific value to ignore.
    
    minValue - the minimum value.
    
    maxValue - the maximum value.
    
    minHue - the mimimum color hue, corresponding to the minimum value.
    
    maxHue - the maximum color hue, corresponding to the maximum value.
    
    Returns:
    
    an iiterable GridPointAttributes defined by the specified buffer of values.
  - createDefaultValues
```
public static Iterable<? extends AnalyticSurface.GridPointAttributes> createDefaultValues(int count)
```
    Returns a new iterable populated with the default AnalyticSurface.GridPointAttributes. The default GridPointAttributes have a value of 0, and the color Color.BLACK.
    
    Parameters:
    
    count - the desired number of GridPointAttributes to return.
    
    Returns:
    
    an iterable containing count default GridPointAttributes.
  - createGridPointAttributes
```
public static AnalyticSurface.GridPointAttributes createGridPointAttributes(double value,
                                                                            Color color)
```
    Returns a new instance of AnalyticSurface.GridPointAttributes with the specified value and color.
    
    Parameters:
    
    value - the new GridPointAttributes' value.
    
    color - the new GridPointAttributes' color.
    
    Returns:
    
    a new GridPointAttributes defined by the specified value and color.
  - createShadowSurface
```
protected AnalyticSurface.AnalyticSurfaceObject createShadowSurface()
```
  - doDrawOrderedRenderable
```
protected void doDrawOrderedRenderable(DrawContext dc)
```
  - doUpdate
```
protected void doUpdate(DrawContext dc)
```
  - drawInterior
```
protected void drawInterior(DrawContext dc)
```
  - drawOrderedRenderable
```
protected void drawOrderedRenderable(DrawContext dc)
```
  - drawOutline
```
protected void drawOutline(DrawContext dc)
```
  - drawSurfaceObjects
```
protected void drawSurfaceObjects(DrawContext dc)
```
  - endDrawing
```
protected void endDrawing(DrawContext dc)
```
  - getAltitude
```
public double getAltitude()
```
    Returns this surface's base altitude, in meters.
    
    Returns:
    
    this surface's base altitude, in meters.
    
    See Also:
    
    setAltitude(double)
  - getAltitudeMode
```
public int getAltitudeMode()
```
    Returns the surface's altitude mode, one of WorldWind.CLAMP_TO_GROUND, WorldWind.RELATIVE_TO_GROUND, or WorldWind.ABSOLUTE.
    
    Returns:
    
    the surface's altitude mode.
    
    See Also:
    
    setAltitudeMode(int)
  - getClientLayer
```
public Layer getClientLayer()
```
    Returns the layer associated with this surface during picking.
    
    Returns:
    
    this surface's pick layer.
  - getDimensions
```
public int[] getDimensions()
```
    Returns the number of horizontal and vertical points composing this surface as an array with two values. The value at index 0 indicates the grid width, and the value at index 1 indicates the grid height.
    
    Returns:
    
    the dimensions of this surface's grid.
  - getExtent
```
public Extent getExtent(DrawContext dc)
```
    Returns this surface's extent in model coordinates.
    
    Parameters:
    
    dc - the current DrawContext.
    
    Returns:
    
    this surface's extent in the specified DrawContext.
    
    Throws:
    
    IllegalArgumentException - if the DrawContext is null.
  - getPickObject
```
public Object getPickObject()
```
    Returns the object which is associated with this surface during picking. A null value is permitted and indicates that the surface itself will be the object returned during picking.
    
    Returns:
    
    this surface's pick object.
  - getSector
```
public Sector getSector()
```
    Returns the Sector defining the geographic boundary of this surface.
    
    Returns:
    
    this surface's geographic boundary, as a Sector.
  - getSurfaceAttributes
```
public AnalyticSurfaceAttributes getSurfaceAttributes()
```
    Returns a copy of the rendering attributes associated with this surface. Modifying the contents of the returned reference has no effect on this surface. In order to make an attribute change take effect, invoke setSurfaceAttributes(AnalyticSurfaceAttributes) with the modified attributes.
    
    Returns:
    
    a copy of this surface's rendering attributes.
  - getValues
```
public Iterable<? extends AnalyticSurface.GridPointAttributes> getValues()
```
    Returns the surface's iterable of AnalyticSurface.GridPointAttributes. See setValues(Iterable) for details on how this iterable is interpreted by AnalyticSurface.
    
    Returns:
    
    this surface's GridPointAttributes.
  - getVerticalScale
```
public double getVerticalScale()
```
    Returns the scale applied to the value at each grid point.
    
    Returns:
    
    the surface's vertical scale coefficient.
  - intersectsFrustum
```
protected boolean intersectsFrustum(DrawContext dc)
```
    Test if this AnalyticSurface intersects the specified draw context's frustum. During picking mode, this tests intersection against all of the draw context's pick frustums. During rendering mode, this tests intersection against the draw context's viewing frustum.
    
    Parameters:
    
    dc - the current draw context.
    
    Returns:
    
    true if this AnalyticSurface intersects the draw context's frustum; false otherwise.
  - isExpired
```
protected boolean isExpired(DrawContext dc)
```
  - isVisible
```
public boolean isVisible()
```
    Returns true if the surface is visible in the scene, and false otherwise.
    
    Returns:
    
    true if the surface is visible in the scene, and false otherwise
  - makeOrderedRenderable
```
protected void makeOrderedRenderable(DrawContext dc)
```
  - preRender
```
public void preRender(DrawContext dc)
```
    Specified by:
    
    preRender in interface PreRenderable
    
    Parameters:
    
    dc -
  - preRenderSurfaceObjects
```
protected void preRenderSurfaceObjects(DrawContext dc)
```
  - render
```
public void render(DrawContext dc)
```
    Causes this Renderable to render itself using the provided draw context.
    
    Specified by:
    
    render in interface Renderable
    
    Parameters:
    
    dc - the DrawContext to be used
    
    See Also:
    
    DrawContext
  - setAltitude
```
public void setAltitude(double altitude)
```
    Sets this surface's base altitude, in meters. See the AnalyticSurface class documentation for information on how the altitude is interpreted.
    
    Parameters:
    
    altitude - the new base altitude, in meters.
  - setAltitudeMode
```
public void setAltitudeMode(int altitudeMode)
```
    Specifies the surface's altitude mode, one of WorldWind.CLAMP_TO_GROUND, WorldWind.RELATIVE_TO_GROUND, or WorldWind.ABSOLUTE. The altitude mode WorldWind.CONSTANT is not supported and WorldWind.ABSOLUTE is used if specified. See the AnalyticSurface class documentation for information on how the altitude mode is interpreted.
    
    Parameters:
    
    altitudeMode - the surface's altitude mode.
  - setClientLayer
```
public void setClientLayer(Layer layer)
```
    Sets the layer associated with this surface during picking. A null value is permitted, and indicates that no layer is associated with this surface.
    
    Parameters:
    
    layer - this surface's pick layer.
  - setDimensions
```
public void setDimensions(int width,
                          int height)
```
    Sets the number of horizontal and vertical points composing this surface.
    
    Parameters:
    
    width - the new grid width.
    
    height - the new grid height.
    
    Throws:
    
    IllegalArgumentException - if either width or heigth are less than 1.
  - setExpired
```
protected void setExpired(boolean expired)
```
  - setPickObject
```
public void setPickObject(Object pickObject)
```
    Sets the object associated with this surface during picking. A null value is permitted and indicates that the surface itself will be the object returned during picking.
    
    Parameters:
    
    pickObject - the object to associated with this surface during picking. A null value is permitted and indicates that the surface itself will be the object returned during picking.
  - setSector
```
public void setSector(Sector sector)
```
    Sets this surface's geographic boundary, as a Sector.
    
    Parameters:
    
    sector - this surface's new geographic boundary, as a Sector.
    
    Throws:
    
    IllegalArgumentException - if the sector is null.
  - setSurfaceAttributes
```
public void setSurfaceAttributes(AnalyticSurfaceAttributes attributes)
```
    Sets the rendering attributes associated with this surface. The caller cannot assume that modifying the attribute reference after calling setSurfaceAttributes() will have any effect, as the implementation may defensively copy the attribute reference. In order to make an attribute change take effect, invoke setSurfaceAttributes(AnalyticSurfaceAttributes) again with the modified attributes.
    
    Parameters:
    
    attributes - this surface's new rendering attributes.
    
    Throws:
    
    IllegalArgumentException - if attributes is null.
  - setValues
```
public void setValues(Iterable<? extends AnalyticSurface.GridPointAttributes> iterable)
```
    Sets this surface's iterable of AnalyticSurface.GridPointAttributes. Grid points are assigned attributes from this iterable staring at the upper left hand corner, and proceeding in row-first order across the grid. The iterable should contain at least width * height values, where width and height are the AnalyticSurface's grid dimensions. If the iterable contains too few values, the unassigned grid points are given default attributes: the default scalar value is 0, and the default color is Color.BLACK.
    
    Parameters:
    
    iterable - the new grid point attributes.
    
    Throws:
    
    IllegalArgumentException - if the iterable is null.
  - setVerticalScale
```
public void setVerticalScale(double scale)
```
    Sets the scale applied to the value at each grid point. Before rendering, this value is applied to each grid points scalar value, thus increasing or decreasing it's height relative to the surface's base altitude, both in meters.
    
    Parameters:
    
    scale - the surface's vertical scale coefficient.
  - setVisible
```
public void setVisible(boolean visible)
```
    Sets whether or not the surface is visible in the scene.
    
    Parameters:
    
    visible - true to make the surface visible, and false to make it hidden.
  - update
```
protected void update(DrawContext dc)
```
  - updateNextSurfacePoint
```
protected void updateNextSurfacePoint(DrawContext dc,
                                      Angle lat,
                                      Angle lon,
                                      AnalyticSurface.GridPointAttributes attr,
                                      AnalyticSurface.RenderInfo outRenderInfo)
```
  - updateSurfaceNormals
```
protected void updateSurfaceNormals(AnalyticSurface.RenderInfo outRenderInfo)
```
  - updateSurfacePoints
```
protected void updateSurfacePoints(DrawContext dc,
                                   AnalyticSurface.RenderInfo outRenderInfo)
```

Class AnalyticSurface

Surface Altitude

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

altitude

altitudeMode

clampToGroundSurface

clientLayer

DEFAULT_ALTITUDE

DEFAULT_ALTITUDE_MODE

DEFAULT_COLOR

DEFAULT_DIMENSION

DEFAULT_GRID_POINT_ATTRIBUTES

DEFAULT_VALUE

expired

extremeValues

globeStateKey

height

pickObject

pickSupport

referencePoint

referencePos

regenTime

RELATIVE_TO_GROUND_REGEN_PERIOD

sector

shadowSurface

surfaceAttributes

surfaceRenderInfo

updateFailed

values

verticalScale

visible

width

Constructor Detail

AnalyticSurface

AnalyticSurface

AnalyticSurface

AnalyticSurface

AnalyticSurface

Method Detail

beginDrawing

bind

computeExtremeValues

computeExtremeValues

computeSurfacePoint

createClampToGroundSurface

createColorGradientAttributes

createColorGradientValues

createDefaultValues

createGridPointAttributes

createShadowSurface

doDrawOrderedRenderable

doUpdate

drawInterior

drawOrderedRenderable

drawOutline

drawSurfaceObjects

endDrawing

getAltitude

getAltitudeMode

getClientLayer

getDimensions

getExtent

getPickObject

getSector

getSurfaceAttributes

getValues

getVerticalScale

intersectsFrustum

isExpired

isVisible

makeOrderedRenderable

preRender

preRenderSurfaceObjects

render

setAltitude