AbstractShape (NASA World Wind)

java.lang.Object
- gov.nasa.worldwind.avlist.AVListImpl
- - gov.nasa.worldwind.WWObjectImpl
  - - gov.nasa.worldwind.render.AbstractShape

All Implemented Interfaces:

AVList, Draggable, MessageListener, Exportable, ExtentHolder, Movable, Movable2, Attributable, GeographicExtent, Highlightable, OrderedRenderable, PreRenderable, Renderable, Restorable, WWObject, PropertyChangeListener, EventListener

Direct Known Subclasses:

AbstractGeneralShape, AntennaAxes, AntennaModel, ExtrudedPolygon, Path, Polygon, RadarVolume, RigidShape
```
public abstract class AbstractShape
extends WWObjectImpl
implements Highlightable, OrderedRenderable, Movable, Movable2, ExtentHolder, GeographicExtent, Exportable, Restorable, PreRenderable, Attributable, Draggable
```
Provides a base class form several geometric Renderables. Implements common attribute handling and rendering flow for outlined shapes. Provides common defaults and common export code.
In order to support simultaneous use of this shape with multiple globes (windows), this shape maintains a cache of data computed relative to each globe. During rendering, the data for the currently active globe, as indicated in the draw context, is made current. Subsequently called methods rely on the existence of this current data cache entry.

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

protected static class AbstractShape.AbstractShapeData
Holds the globe-dependent data captured in this shape's data cache.

Nested Classes
Modifier and Type	Class and Description
`protected static class`	`AbstractShape.AbstractShapeData` Holds the globe-dependent data captured in this shape's data cache.

Field Summary

Fields
Modifier and Type	Field and Description
`protected ShapeAttributes`	`activeAttributes` The attributes active for a particular pick and render pass.
`protected int`	`altitudeMode`
`protected OGLStackHandler`	`BEogsh`
`protected AbstractShape.AbstractShapeData`	`currentData` Identifies the active globe-dependent data for the current invocation of `render(DrawContext)`.
`protected static int`	`DEFAULT_ALTITUDE_MODE` The default altitude mode.
`protected static int`	`DEFAULT_GEOMETRY_GENERATION_INTERVAL` The default geometry regeneration interval.
`protected static Material`	`DEFAULT_HIGHLIGHT_MATERIAL` The default highlight color.
`protected static Material`	`DEFAULT_INTERIOR_MATERIAL` The default interior color.
`protected static Material`	`DEFAULT_OUTLINE_MATERIAL` The default outline color.
`protected static int`	`DEFAULT_OUTLINE_PICK_WIDTH` The default outline pick width.
`protected static ShapeAttributes`	`defaultAttributes` The attributes used if attributes are not specified.
`protected Object`	`delegateOwner`
`protected boolean`	`dragEnabled`
`protected DraggableSupport`	`draggableSupport`
`protected boolean`	`enableBatchPicking`
`protected boolean`	`enableBatchRendering`
`protected boolean`	`enableDepthOffset`
`protected ShapeAttributes`	`highlightAttrs` This shape's highlighted attributes.
`protected boolean`	`highlighted`
`protected long`	`maxExpiryTime`
`protected long`	`minExpiryTime`
`protected ShapeAttributes`	`normalAttrs` This shape's normal, non-highlighted attributes.
`protected int`	`outlinePickWidth`
`protected OutlinedShape`	`outlineShapeRenderer` Outlined shapes are drawn as `OutlinedShape`s.
`protected Layer`	`pickLayer`
`protected PickSupport`	`pickSupport`
`protected Position`	`referencePosition`
`protected Sector`	`sector`
`protected ShapeDataCache`	`shapeDataCache` Holds globe-dependent computed data.
`protected SurfaceShape`	`surfaceShape`
`protected static int`	`VBO_THRESHOLD` Indicates the number of vertices that must be present in order for VBOs to be used to render this shape.
`protected boolean`	`viewDistanceExpiration`
`protected boolean`	`visible`

Fields inherited from interface gov.nasa.worldwind.Exportable
FORMAT_NOT_SUPPORTED, FORMAT_PARTIALLY_SUPPORTED, FORMAT_SUPPORTED

Constructor Summary

Constructors
Modifier	Constructor and Description
`protected`	`AbstractShape()` Invokes `initialize()` during construction and sets the data cache's expiration time to a default value.
`protected`	`AbstractShape(AbstractShape source)`

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method and Description
`protected void`	`addOrderedRenderable(DrawContext dc)` Adds this shape to the draw context's ordered renderable list.
`protected OGLStackHandler`	`beginDrawing(DrawContext dc, int attrMask)` Establish the OpenGL state needed to draw this shape.
`protected void`	`checkViewDistanceExpiration(DrawContext dc)` Determines whether this shape's geometry should be invalidated because the view distance changed, and if so, invalidates the geometry.
`protected void`	`clearCachedVbos(DrawContext dc)` Removes from the GPU resource cache the entry for the current data cache entry's VBOs.
`protected Extent`	`computeExtentFromPositions(Globe globe, double verticalExaggeration, Iterable<? extends LatLon> positions)` Computes this shape's approximate extent from its positions.
`protected Vec4`	`computePoint(DrawContext dc, Terrain terrain, Position position)` Computes a model-coordinate point from a position, applying this shape's altitude mode, and using `CLAMP_TO_GROUND` if the current globe is 2D.
`protected Vec4`	`computePoint(Terrain terrain, Position position)` Computes a model-coordinate point from a position, applying this shape's altitude mode.
`protected int`	`countTriangleVertices(List<List<Integer>> prims, List<Integer> primTypes)`
`protected abstract AbstractShape.AbstractShapeData`	`createCacheEntry(DrawContext dc)` Creates and returns a new cache entry specific to the subclass.
`protected PickedObject`	`createPickedObject(int colorCode)` Creates a `PickedObject` for this shape and the specified unique pick color code.
`protected SurfaceShape`	`createSurfaceShape()` Returns a `SurfaceShape` that corresponds to this Path and is used for drawing on 2D globes.
`protected void`	`determineActiveAttributes()` Determines which attributes -- normal, highlight or default -- to use each frame.
`protected void`	`doDrag(DragContext dragContext)`
`protected abstract void`	`doDrawInterior(DrawContext dc)` Draws this shape's interior.
`protected void`	`doDrawOrderedRenderable(DrawContext dc, PickSupport pickCandidates)` Draw this shape as an ordered renderable.
`protected abstract void`	`doDrawOutline(DrawContext dc)` Draws this shape's outline.
`protected abstract void`	`doExportAsKML(XMLStreamWriter xmlWriter)` Exports shape-specific fields.
`protected void`	`doGetRestorableState(RestorableSupport rs, RestorableSupport.StateObject context)`
`protected abstract boolean`	`doMakeOrderedRenderable(DrawContext dc)` Produces the geometry and other state necessary to represent this shape as an ordered renderable.
`protected void`	`doRestoreState(RestorableSupport rs, RestorableSupport.StateObject context)`
`void`	`drag(DragContext dragContext)` Drag the object given the provided `DragContext`.
`protected void`	`drawBatched(DrawContext dc)` Draws this ordered renderable and all subsequent Path ordered renderables in the ordered renderable list.
`protected void`	`drawInterior(DrawContext dc)` Draws this shape's interior.
`protected void`	`drawOrderedRenderable(DrawContext dc)` Draws this shape as an ordered renderable.
`protected void`	`drawOutline(DrawContext dc)` Draws this shape's outline.
`protected void`	`endDrawing(DrawContext dc)` Pop the state set in `beginDrawing(DrawContext, int)`.
`void`	`export(String mimeType, Object output)` Exports the object to a format.
`protected void`	`exportAsKML(Object output)` Export the placemark to KML as a `<Placemark>` element.
`protected abstract void`	`fillVBO(DrawContext dc)` Fill this shape's vertex buffer objects.
`ShapeAttributes`	`getActiveAttributes()` Returns this shape's currently active attributes, as determined during the most recent call to `determineActiveAttributes()`.
`int`	`getAltitudeMode()` Returns this shape's altitude mode.
`ShapeAttributes`	`getAttributes()` Returns this shape's normal (as opposed to highlight) attributes.
`protected AbstractShape.AbstractShapeData`	`getCurrentData()` Returns the data cache entry for the current rendering.
`Object`	`getDelegateOwner()`
`double`	`getDistanceFromEye()` Returns the ordered renderable's distance from the current view's eye point.
`Extent`	`getExtent()` Returns this shape's extent in model coordinates.
`Extent`	`getExtent(Globe globe, double verticalExaggeration)` Returns the objects enclosing volume as an `Extent` in model coordinates, given a specified `Globe` and vertical exaggeration (see `SceneController.getVerticalExaggeration()`.
`long`	`getGeometryRegenerationInterval()` Indicates the maximum length of time between geometry regenerations.
`ShapeAttributes`	`getHighlightAttributes()` Returns this shape's highlight attributes.
`int`	`getOutlinePickWidth()` Indicates the outline line width to use during picking.
`Vec4`	`getReferencePoint()` Returns the Cartesian coordinates of this shape's reference position as computed during the most recent rendering.
`String`	`getRestorableState()` Returns an XML document string describing the object's state.
`protected int[]`	`getVboIds(DrawContext dc)` Get or create OpenGL resource IDs for the current data cache entry.
`protected abstract void`	`initialize()` Called during construction to establish any subclass-specific state such as different default values than those set by this class.
`abstract List<Intersection>`	`intersect(Line line, Terrain terrain)` Compute the intersections of a specified line with this shape.
`protected boolean`	`intersectsFrustum(DrawContext dc)` Determines whether this shape intersects the view frustum.
`boolean`	`isDragEnabled()` Indicates whether the object is enabled for dragging.
`boolean`	`isEnableBatchPicking()` Indicates whether batch picking is enabled.
`boolean`	`isEnableBatchRendering()` Indicates whether batch rendering is enabled for the concrete shape type of this shape.
`boolean`	`isEnableDepthOffset()` Indicates whether the filled sides of this shape should be offset towards the viewer to help eliminate artifacts when two or more faces of this or other filled shapes are coincident.
`String`	`isExportFormatSupported(String mimeType)` Does this object support a certain export format?
`boolean`	`isHighlighted()` Indicates whether to highlight the shape.
`protected abstract boolean`	`isOrderedRenderableValid(DrawContext dc)` Determines whether this shape's ordered renderable state is valid and can be rendered.
`protected boolean`	`isTerrainDependent()` Indicates whether this shape's geometry depends on the terrain.
`boolean`	`isViewDistanceExpiration()` Indicates whether this shape's terrain-dependent geometry is continually computed as its distance from the eye point changes.
`boolean`	`isVisible()` Indicates whether this shape is drawn during rendering.
`protected void`	`makeOrderedRenderable(DrawContext dc)` Determines whether to add this shape to the draw context's ordered renderable list.
`protected WWTexture`	`makeTexture(Object imageSource)` Creates a `WWTexture` for a specified image source.
`void`	`move(Position delta)` Shift the shape over the globe's surface while maintaining its original azimuth, its orientation relative to North.
`void`	`moveTo(Globe globe, Position position)` Move the shape over the globe's surface while maintaining its original azimuth, its orientation relative to North.
`protected boolean`	`mustApplyLighting(DrawContext dc)` Indicates whether standard lighting must be applied by consulting the current active attributes.
`protected boolean`	`mustApplyLighting(DrawContext dc, ShapeAttributes activeAttrs)` Indicates whether standard lighting must be applied by consulting either the specified active attributes or the current active attributes.
`protected abstract boolean`	`mustApplyTexture(DrawContext dc)` Indicates whether texture should be applied to this shape.
`protected boolean`	`mustCreateNormals(DrawContext dc)` Indicates whether normal vectors must be computed by consulting the current active attributes.
`protected boolean`	`mustCreateNormals(DrawContext dc, ShapeAttributes activeAttrs)` Indicates whether normal vectors must be computed by consulting either the specified active attributes or the current active attributes.
`protected boolean`	`mustDrawInterior()` Indicates whether this shape's interior must be drawn.
`protected boolean`	`mustDrawOutline()` Indicates whether this shape's outline must be drawn.
`protected boolean`	`mustRegenerateGeometry(DrawContext dc)` Indicates whether this shape's renderable geometry must be recomputed, either as a result of an attribute or property change or the expiration of the geometry regeneration interval.
`void`	`pick(DrawContext dc, Point pickPoint)` Executes a pick of the ordered renderable.
`protected void`	`prepareToDrawInterior(DrawContext dc, ShapeAttributes activeAttrs, ShapeAttributes defaultAttrs)` Establishes OpenGL state for drawing the interior, including setting the color/material.
`protected void`	`prepareToDrawOutline(DrawContext dc, ShapeAttributes activeAttrs, ShapeAttributes defaultAttrs)` Establishes OpenGL state for drawing the outline, including setting the color/material, line smoothing, line width and stipple.
`void`	`preRender(DrawContext dc)`
`void`	`render(DrawContext dc)` Causes this `Renderable` to render itself using the provided draw context.
`protected void`	`reset()` Invalidates computed values.
`void`	`restoreState(String stateInXml)` Restores the object's state to what is described in the specified XML document string.
`void`	`setAltitudeMode(int altitudeMode)` Specifies this shape's altitude mode, one of `WorldWind.ABSOLUTE`, `WorldWind.RELATIVE_TO_GROUND` or `WorldWind.CLAMP_TO_GROUND`.
`void`	`setAttributes(ShapeAttributes normalAttrs)` Specifies this shape's normal (as opposed to highlight) attributes.
`void`	`setDelegateOwner(Object delegateOwner)`
`void`	`setDragEnabled(boolean enabled)` Controls whether the object is enabled for dragging.
`void`	`setEnableBatchPicking(boolean enableBatchPicking)` Specifies whether adjacent shapes of this shape's concrete type in the ordered renderable list may be pick-tested together if they are contained in the same layer.
`void`	`setEnableBatchRendering(boolean enableBatchRendering)` Specifies whether adjacent shapes of this shape's concrete type in the ordered renderable list may be rendered together if they are contained in the same layer.
`void`	`setEnableDepthOffset(boolean enableDepthOffset)` Specifies whether the filled sides of this shape should be offset towards the viewer to help eliminate artifacts when two or more faces of this or other filled shapes are coincident.
`void`	`setGeometryRegenerationInterval(int geometryRegenerationInterval)` Specifies the maximum length of time between geometry regenerations.
`void`	`setHighlightAttributes(ShapeAttributes highlightAttrs)` Specifies this shape's highlight attributes.
`void`	`setHighlighted(boolean highlighted)` Specifies whether to highlight the shape.
`void`	`setOutlinePickWidth(int outlinePickWidth)` Specifies the outline line width to use during picking.
`void`	`setReferencePosition(Position referencePosition)` Specifies the position to use as a reference position for computed geometry.
`void`	`setViewDistanceExpiration(boolean viewDistanceExpiration)` Specifies whether this shape's terrain-dependent geometry is continually computed as its distance from the eye point changes.
`void`	`setVisible(boolean visible)` Specifies whether this shape is drawn during rendering.
`protected boolean`	`shouldUseVBOs(DrawContext dc)` Indicates whether this shape should use OpenGL vertex buffer objects.
`protected void`	`updateSurfaceShape()` Sets surface shape parameters prior to picking and rendering the 2D shape used to represent this shape on 2D globes.

Methods inherited from class gov.nasa.worldwind.WWObjectImpl
onMessage, propertyChange

Methods inherited from class gov.nasa.worldwind.avlist.AVListImpl
addPropertyChangeListener, addPropertyChangeListener, clearList, copy, firePropertyChange, firePropertyChange, getBooleanValue, getBooleanValue, getChangeSupport, getDoubleValue, getDoubleValue, getEntries, getIntegerValue, getIntegerValue, getLongValue, getLongValue, getRestorableStateForAVPair, getStringValue, getStringValue, getStringValue, getValue, getValues, hasKey, removeKey, removePropertyChangeListener, removePropertyChangeListener, setValue, setValues

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

Methods inherited from interface gov.nasa.worldwind.Movable
getReferencePosition, moveTo

Methods inherited from interface gov.nasa.worldwind.Movable2
getReferencePosition

Methods inherited from interface gov.nasa.worldwind.render.GeographicExtent
getSector

Methods inherited from interface gov.nasa.worldwind.avlist.AVList
addPropertyChangeListener, addPropertyChangeListener, clearList, copy, firePropertyChange, firePropertyChange, getEntries, getStringValue, getValue, getValues, hasKey, removeKey, removePropertyChangeListener, removePropertyChangeListener, setValue, setValues

- Field Detail
  - activeAttributes
```
protected ShapeAttributes activeAttributes
```
    The attributes active for a particular pick and render pass. These are determined according to the highlighting mode.
  - altitudeMode
```
protected int altitudeMode
```
  - BEogsh
```
protected OGLStackHandler BEogsh
```
  - currentData
```
protected AbstractShape.AbstractShapeData currentData
```
    Identifies the active globe-dependent data for the current invocation of render(DrawContext). The active data is drawn from this shape's data cache at the beginning of the render method.
  - DEFAULT_ALTITUDE_MODE
```
protected static final int DEFAULT_ALTITUDE_MODE
```
    The default altitude mode.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_GEOMETRY_GENERATION_INTERVAL
```
protected static final int DEFAULT_GEOMETRY_GENERATION_INTERVAL
```
    The default geometry regeneration interval.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_HIGHLIGHT_MATERIAL
```
protected static final Material DEFAULT_HIGHLIGHT_MATERIAL
```
    The default highlight color.
  - DEFAULT_INTERIOR_MATERIAL
```
protected static final Material DEFAULT_INTERIOR_MATERIAL
```
    The default interior color.
  - DEFAULT_OUTLINE_MATERIAL
```
protected static final Material DEFAULT_OUTLINE_MATERIAL
```
    The default outline color.
  - DEFAULT_OUTLINE_PICK_WIDTH
```
protected static final int DEFAULT_OUTLINE_PICK_WIDTH
```
    The default outline pick width.
    
    See Also:
    
    Constant Field Values
  - defaultAttributes
```
protected static ShapeAttributes defaultAttributes
```
    The attributes used if attributes are not specified.
  - delegateOwner
```
protected Object delegateOwner
```
  - dragEnabled
```
protected boolean dragEnabled
```
  - draggableSupport
```
protected DraggableSupport draggableSupport
```
  - enableBatchPicking
```
protected boolean enableBatchPicking
```
  - enableBatchRendering
```
protected boolean enableBatchRendering
```
  - enableDepthOffset
```
protected boolean enableDepthOffset
```
  - highlightAttrs
```
protected ShapeAttributes highlightAttrs
```
    This shape's highlighted attributes.
  - highlighted
```
protected boolean highlighted
```
  - maxExpiryTime
```
protected long maxExpiryTime
```
  - minExpiryTime
```
protected long minExpiryTime
```
  - normalAttrs
```
protected ShapeAttributes normalAttrs
```
    This shape's normal, non-highlighted attributes.
  - outlinePickWidth
```
protected int outlinePickWidth
```
  - outlineShapeRenderer
```
protected OutlinedShape outlineShapeRenderer
```
    Outlined shapes are drawn as OutlinedShapes.
  - pickLayer
```
protected Layer pickLayer
```
  - pickSupport
```
protected PickSupport pickSupport
```
  - referencePosition
```
protected Position referencePosition
```
  - sector
```
protected Sector sector
```
  - shapeDataCache
```
protected ShapeDataCache shapeDataCache
```
    Holds globe-dependent computed data. One entry per globe encountered during render(DrawContext).
  - surfaceShape
```
protected SurfaceShape surfaceShape
```
  - VBO_THRESHOLD
```
protected static final int VBO_THRESHOLD
```
    Indicates the number of vertices that must be present in order for VBOs to be used to render this shape.
  - viewDistanceExpiration
```
protected boolean viewDistanceExpiration
```
  - visible
```
protected boolean visible
```
- Constructor Detail
  - AbstractShape
```
protected AbstractShape()
```
    Invokes initialize() during construction and sets the data cache's expiration time to a default value.
  - AbstractShape
```
protected AbstractShape(AbstractShape source)
```
- Method Detail
  - addOrderedRenderable
```
protected void addOrderedRenderable(DrawContext dc)
```
    Adds this shape to the draw context's ordered renderable list.
    
    Parameters:
    
    dc - the current draw context.
  - beginDrawing
```
protected OGLStackHandler beginDrawing(DrawContext dc,
                                       int attrMask)
```
    Establish the OpenGL state needed to draw this shape.
    A AbstractShape.AbstractShapeData must be current when this method is called.
    
    Parameters:
    
    dc - the current draw context.
    
    attrMask - an attribute mask indicating state the caller will set. This base class implementation sets GL_CURRENT_BIT, GL_LINE_BIT, GL_HINT_BIT, GL_POLYGON_BIT, GL_COLOR_BUFFER_BIT, and GL_TRANSFORM_BIT.
    
    Returns:
    
    the stack handler used to set the OpenGL state. Callers should use this to set additional state, especially state indicated in the attribute mask argument.
  - checkViewDistanceExpiration
```
protected void checkViewDistanceExpiration(DrawContext dc)
```
    Determines whether this shape's geometry should be invalidated because the view distance changed, and if so, invalidates the geometry.
    
    Parameters:
    
    dc - the current draw context.
  - clearCachedVbos
```
protected void clearCachedVbos(DrawContext dc)
```
    Removes from the GPU resource cache the entry for the current data cache entry's VBOs.
    A AbstractShape.AbstractShapeData must be current when this method is called.
    
    Parameters:
    
    dc - the current draw context.
  - computeExtentFromPositions
```
protected Extent computeExtentFromPositions(Globe globe,
                                            double verticalExaggeration,
                                            Iterable<? extends LatLon> positions)
```
    Computes this shape's approximate extent from its positions.
    
    Parameters:
    
    globe - the globe to use to compute the extent.
    
    verticalExaggeration - the vertical exaggeration to apply to computed terrain points.
    
    positions - the positions to compute the extent for.
    
    Returns:
    
    the extent, or null if an extent cannot be computed. Null is returned if either globe or positions is null.
  - computePoint
```
protected Vec4 computePoint(DrawContext dc,
                            Terrain terrain,
                            Position position)
```
    Computes a model-coordinate point from a position, applying this shape's altitude mode, and using CLAMP_TO_GROUND if the current globe is 2D.
    
    Parameters:
    
    dc - the current draw context.
    
    terrain - the terrain to compute a point relative to the globe's surface.
    
    position - the position to compute a point for.
    
    Returns:
    
    the model-coordinate point corresponding to the position and this shape's shape type.
  - computePoint
```
protected Vec4 computePoint(Terrain terrain,
                            Position position)
```
    Computes a model-coordinate point from a position, applying this shape's altitude mode.
    
    Parameters:
    
    terrain - the terrain to compute a point relative to the globe's surface.
    
    position - the position to compute a point for.
    
    Returns:
    
    the model-coordinate point corresponding to the position and this shape's shape type.
  - countTriangleVertices
```
protected int countTriangleVertices(List<List<Integer>> prims,
                                    List<Integer> primTypes)
```
  - createCacheEntry
```
protected abstract AbstractShape.AbstractShapeData createCacheEntry(DrawContext dc)
```
    Creates and returns a new cache entry specific to the subclass.
    
    Parameters:
    
    dc - the current draw context.
    
    Returns:
    
    a data cache entry for the state in the specified draw context.
  - createPickedObject
```
protected PickedObject createPickedObject(int colorCode)
```
    Creates a PickedObject for this shape and the specified unique pick color code. The PickedObject returned by this method will be added to the pick list to represent the current shape.
    
    Parameters:
    
    colorCode - the unique color code for this shape.
    
    Returns:
    
    a new picked object.
  - createSurfaceShape
```
protected SurfaceShape createSurfaceShape()
```
    Returns a SurfaceShape that corresponds to this Path and is used for drawing on 2D globes.
    
    Returns:
    
    The surface shape to represent this Path on a 2D globe.
  - determineActiveAttributes
```
protected void determineActiveAttributes()
```
    Determines which attributes -- normal, highlight or default -- to use each frame. Places the result in this shape's current active attributes.
    
    See Also:
    
    getActiveAttributes()
  - doDrag
```
protected void doDrag(DragContext dragContext)
```
  - doDrawInterior
```
protected abstract void doDrawInterior(DrawContext dc)
```
    Draws this shape's interior. Called immediately after calling prepareToDrawInterior(DrawContext, ShapeAttributes, ShapeAttributes), which establishes OpenGL state for lighting, blending, pick color and interior attributes. Subclasses should execute the drawing commands specific to the type of shape.
    A AbstractShape.AbstractShapeData must be current when this method is called.
    
    Parameters:
    
    dc - the current draw context.
  - doDrawOrderedRenderable
```
protected void doDrawOrderedRenderable(DrawContext dc,
                                       PickSupport pickCandidates)
```
    Draw this shape as an ordered renderable. If in picking mode, add it to the picked object list of specified PickSupport. The PickSupport may not be the one associated with this instance. During batch picking the PickSupport of the instance initiating the batch picking is used so that all shapes rendered in batch are added to the same pick list.
    A AbstractShape.AbstractShapeData must be current when this method is called.
    
    Parameters:
    
    dc - the current draw context.
    
    pickCandidates - a pick support holding the picked object list to add this shape to.
  - doDrawOutline
```
protected abstract void doDrawOutline(DrawContext dc)
```
    Draws this shape's outline. Called immediately after calling prepareToDrawOutline(DrawContext, ShapeAttributes, ShapeAttributes), which establishes OpenGL state for lighting, blending, pick color and line attributes. Subclasses should execute the drawing commands specific to the type of shape.
    A AbstractShape.AbstractShapeData must be current when this method is called.
    
    Parameters:
    
    dc - the current draw context.
  - doExportAsKML
```
protected abstract void doExportAsKML(XMLStreamWriter xmlWriter)
                               throws IOException,
                                      XMLStreamException
```
    Exports shape-specific fields.
    
    Parameters:
    
    xmlWriter - the export writer to write to.
    
    Throws:
    
    IOException - if an IO error occurs while writing to the output destination.
    
    XMLStreamException - if an exception occurs converting this shape's fields to XML.
  - doGetRestorableState
```
protected void doGetRestorableState(RestorableSupport rs,
                                    RestorableSupport.StateObject context)
```
  - doMakeOrderedRenderable
```
protected abstract boolean doMakeOrderedRenderable(DrawContext dc)
```
    Produces the geometry and other state necessary to represent this shape as an ordered renderable. Places this shape on the draw context's ordered renderable list for subsequent rendering. This method is called during pick(DrawContext, java.awt.Point) and render(DrawContext) when it's been determined that the shape is likely to be visible.
    
    Parameters:
    
    dc - the current draw context.
    
    Returns:
    
    true if the ordered renderable state was successfully computed, otherwise false, in which case the current pick or render pass is terminated for this shape. Subclasses should return false if it is not possible to create the ordered renderable state.
    
    See Also:
    
    pick(DrawContext, java.awt.Point), render(DrawContext)
  - doRestoreState
```
protected void doRestoreState(RestorableSupport rs,
                              RestorableSupport.StateObject context)
```
  - drag
```
public void drag(DragContext dragContext)
```
    Description copied from interface: Draggable
    
    Drag the object given the provided DragContext.
    
    Specified by:
    
    drag in interface Draggable
    
    Parameters:
    
    dragContext - the DragContext of this dragging event.
  - drawBatched
```
protected void drawBatched(DrawContext dc)
```
    Draws this ordered renderable and all subsequent Path ordered renderables in the ordered renderable list. If the current pick mode is true, only shapes within the same layer are drawn as a batch.
    A AbstractShape.AbstractShapeData must be current when this method is called.
    
    Parameters:
    
    dc - the current draw context.
  - drawInterior
```
protected void drawInterior(DrawContext dc)
```
    Draws this shape's interior.
    A AbstractShape.AbstractShapeData must be current when this method is called.
    
    Parameters:
    
    dc - the current draw context.
  - drawOrderedRenderable
```
protected void drawOrderedRenderable(DrawContext dc)
```
    Draws this shape as an ordered renderable.
    A AbstractShape.AbstractShapeData must be current when this method is called.
    
    Parameters:
    
    dc - the current draw context.
  - drawOutline
```
protected void drawOutline(DrawContext dc)
```
    Draws this shape's outline.
    A AbstractShape.AbstractShapeData must be current when this method is called.
    
    Parameters:
    
    dc - the current draw context.
  - endDrawing
```
protected void endDrawing(DrawContext dc)
```
    Pop the state set in beginDrawing(DrawContext, int).
    A AbstractShape.AbstractShapeData must be current when this method is called.
    
    Parameters:
    
    dc - the current draw context.
  - export
```
public void export(String mimeType,
                   Object output)
            throws IOException,
                   UnsupportedOperationException
```
    Description copied from interface: Exportable
    
    Exports the object to a format.
    
    Specified by:
    
    export in interface Exportable
    
    Parameters:
    
    mimeType - Desired export format. Call Exportable.isExportFormatSupported(String) to make sure that the object supports the format before trying to export, or be prepared to handle UnsupportedOperationException.
    
    output - Object that will receive the exported data. The type of this object depends on the export format. All formats should support java.io.OutputStream. Text based format (for example, XML formats) should also support java.io.Writer. Certain formats may also support other object types.
    
    Throws:
    
    IOException - if an exception occurs while exporting the data.
    
    UnsupportedOperationException - if the format is not supported by this object, or if the output argument is not of a supported type.
    
    See Also:
    
    Exportable.isExportFormatSupported(String)
  - exportAsKML
```
protected void exportAsKML(Object output)
                    throws IOException,
                           XMLStreamException
```
    Export the placemark to KML as a <Placemark> element. The output object will receive the data. This object must be one of: java.io.Writer java.io.OutputStream javax.xml.stream.XMLStreamWriter
    
    Parameters:
    
    output - Object to receive the generated KML.
    
    Throws:
    
    XMLStreamException - If an exception occurs while writing the KML
    
    IOException - if an exception occurs while exporting the data.
    
    See Also:
    
    export(String, Object)
  - fillVBO
```
protected abstract void fillVBO(DrawContext dc)
```
    Fill this shape's vertex buffer objects. If the vertex buffer object resource IDs don't yet exist, create them.
    A AbstractShape.AbstractShapeData must be current when this method is called.
    
    Parameters:
    
    dc - the current draw context.
  - getActiveAttributes
```
public ShapeAttributes getActiveAttributes()
```
    Returns this shape's currently active attributes, as determined during the most recent call to determineActiveAttributes(). The active attributes are either the normal or highlight attributes, depending on this shape's highlight flag, and incorporates default attributes for those not specified in the applicable attribute set.
    
    Returns:
    
    this shape's currently active attributes.
  - getAltitudeMode
```
public int getAltitudeMode()
```
    Returns this shape's altitude mode.
    
    Returns:
    
    this shape's altitude mode.
    
    See Also:
    
    setAltitudeMode(int)
  - getAttributes
```
public ShapeAttributes getAttributes()
```
    Returns this shape's normal (as opposed to highlight) attributes.
    
    Specified by:
    
    getAttributes in interface Attributable
    
    Returns:
    
    this shape's normal attributes. May be null.
  - getCurrentData
```
protected AbstractShape.AbstractShapeData getCurrentData()
```
    Returns the data cache entry for the current rendering.
    
    Returns:
    
    the data cache entry for the current rendering.
  - getDelegateOwner
```
public Object getDelegateOwner()
```
  - getDistanceFromEye
```
public double getDistanceFromEye()
```
    Description copied from interface: OrderedRenderable
    
    Returns the ordered renderable's distance from the current view's eye point. Intended to be used only to sort a list of ordered renderables according to eye distance, and only during frame generation when a view is active.
    
    Specified by:
    
    getDistanceFromEye in interface OrderedRenderable
    
    Returns:
    
    the distance of the ordered renderable from the current view's eye point.
  - getExtent
```
public Extent getExtent()
```
    Returns this shape's extent in model coordinates.
    
    Returns:
    
    this shape's extent, or null if an extent has not been computed.
  - getExtent
```
public Extent getExtent(Globe globe,
                        double verticalExaggeration)
```
    Description copied from interface: ExtentHolder
    
    Returns the objects enclosing volume as an Extent in model coordinates, given a specified Globe and vertical exaggeration (see SceneController.getVerticalExaggeration().
    
    Specified by:
    
    getExtent in interface ExtentHolder
    
    Parameters:
    
    globe - the Globe the object is related to.
    
    verticalExaggeration - the vertical exaggeration of the scene containing this object.
    
    Returns:
    
    the object's Extent in model coordinates.
  - getGeometryRegenerationInterval
```
public long getGeometryRegenerationInterval()
```
    Indicates the maximum length of time between geometry regenerations. See setGeometryRegenerationInterval(int) for the regeneration-interval's description.
    
    Returns:
    
    the geometry regeneration interval, in milliseconds.
    
    See Also:
    
    setGeometryRegenerationInterval(int)
  - getHighlightAttributes
```
public ShapeAttributes getHighlightAttributes()
```
    Returns this shape's highlight attributes.
    
    Specified by:
    
    getHighlightAttributes in interface Attributable
    
    Returns:
    
    this shape's highlight attributes. May be null.
  - getOutlinePickWidth
```
public int getOutlinePickWidth()
```
    Indicates the outline line width to use during picking. A larger width than normal typically makes the outline easier to pick.
    
    Returns:
    
    the outline line width used during picking.
  - getReferencePoint
```
public Vec4 getReferencePoint()
```
    Returns the Cartesian coordinates of this shape's reference position as computed during the most recent rendering.
    
    Returns:
    
    the Cartesian coordinates corresponding to this shape's reference position, or null if the point has not been computed.
  - getRestorableState
```
public String getRestorableState()
```
    Description copied from interface: Restorable
    
    Returns an XML document string describing the object's state. This state can be restored later by calling restoreState and passing the XML document.
    
    Specified by:
    
    getRestorableState in interface Restorable
    
    Returns:
    
    an XML document string describing the object's state.
  - getVboIds
```
protected int[] getVboIds(DrawContext dc)
```
    Get or create OpenGL resource IDs for the current data cache entry.
    A AbstractShape.AbstractShapeData must be current when this method is called.
    
    Parameters:
    
    dc - the current draw context.
    
    Returns:
    
    an array containing the coordinate vertex buffer ID in the first position and the index vertex buffer ID in the second position.
  - initialize
```
protected abstract void initialize()
```
    Called during construction to establish any subclass-specific state such as different default values than those set by this class.
  - intersect
```
public abstract List<Intersection> intersect(Line line,
                                             Terrain terrain)
                                      throws InterruptedException
```
    Compute the intersections of a specified line with this shape. If the shape's altitude mode is other than WorldWind.ABSOLUTE, the shape's geometry is created relative to the specified terrain rather than the terrain used during rendering, which may be at lower level of detail than required for accurate intersection determination.
    
    Parameters:
    
    line - the line to intersect.
    
    terrain - the Terrain to use when computing the shape's geometry.
    
    Returns:
    
    a list of intersections identifying where the line intersects the shape, or null if the line does not intersect the shape.
    
    Throws:
    
    InterruptedException - if the operation is interrupted.
    
    See Also:
    
    Terrain
  - intersectsFrustum
```
protected boolean intersectsFrustum(DrawContext dc)
```
    Determines whether this shape intersects the view frustum.
    A AbstractShape.AbstractShapeData must be current when this method is called.
    
    Parameters:
    
    dc - the current draw context.
    
    Returns:
    
    true if this shape intersects the frustum, otherwise false.
  - isDragEnabled
```
public boolean isDragEnabled()
```
    Description copied from interface: Draggable
    
    Indicates whether the object is enabled for dragging.
    
    Specified by:
    
    isDragEnabled in interface Draggable
    
    Returns:
    
    true if the object is enabled, else false.
  - isEnableBatchPicking
```
public boolean isEnableBatchPicking()
```
    Indicates whether batch picking is enabled.
    
    Returns:
    
    true if batch rendering is enabled, otherwise false.
    
    See Also:
    
    setEnableBatchPicking(boolean).
  - isEnableBatchRendering
```
public boolean isEnableBatchRendering()
```
    Indicates whether batch rendering is enabled for the concrete shape type of this shape.
    
    Returns:
    
    true if batch rendering is enabled, otherwise false.
    
    See Also:
    
    setEnableBatchRendering(boolean).
  - isEnableDepthOffset
```
public boolean isEnableDepthOffset()
```
    Indicates whether the filled sides of this shape should be offset towards the viewer to help eliminate artifacts when two or more faces of this or other filled shapes are coincident.
    
    Returns:
    
    true if depth offset is applied, otherwise false.
  - isExportFormatSupported
```
public String isExportFormatSupported(String mimeType)
```
    Description copied from interface: Exportable
    
    Does this object support a certain export format?
    
    Specified by:
    
    isExportFormatSupported in interface Exportable
    
    Parameters:
    
    mimeType - Desired export format.
    
    Returns:
    
    One of Exportable.FORMAT_SUPPORTED, Exportable.FORMAT_NOT_SUPPORTED, or Exportable.FORMAT_PARTIALLY_SUPPORTED.
    
    See Also:
    
    Exportable.export(String, Object)
  - isHighlighted
```
public boolean isHighlighted()
```
    Description copied from interface: Highlightable
    
    Indicates whether to highlight the shape.
    
    Specified by:
    
    isHighlighted in interface Highlightable
    
    Returns:
    
    true to highlight the shape, otherwise false.
  - isOrderedRenderableValid
```
protected abstract boolean isOrderedRenderableValid(DrawContext dc)
```
    Determines whether this shape's ordered renderable state is valid and can be rendered. Called by makeOrderedRenderable(DrawContext)just prior to adding the shape to the ordered renderable list.
    
    Parameters:
    
    dc - the current draw context.
    
    Returns:
    
    true if this shape is ready to be rendered as an ordered renderable.
  - isTerrainDependent
```
protected boolean isTerrainDependent()
```
    Indicates whether this shape's geometry depends on the terrain.
    
    Returns:
    
    true if this shape's geometry depends on the terrain, otherwise false.
  - isViewDistanceExpiration
```
public boolean isViewDistanceExpiration()
```
    Indicates whether this shape's terrain-dependent geometry is continually computed as its distance from the eye point changes. This is often necessary to ensure that the shape is updated as the terrain precision changes. But it's often not necessary as well, and can be disabled.
    
    Returns:
    
    true if the terrain dependent geometry is updated as the eye distance changes, otherwise false. The default is true.
  - isVisible
```
public boolean isVisible()
```
    Indicates whether this shape is drawn during rendering.
    
    Returns:
    
    true if this shape is drawn, otherwise false.
    
    See Also:
    
    setVisible(boolean)
  - makeOrderedRenderable
```
protected void makeOrderedRenderable(DrawContext dc)
```
    Determines whether to add this shape to the draw context's ordered renderable list. Creates this shapes renderable geometry.
    A AbstractShape.AbstractShapeData must be current when this method is called.
    
    Parameters:
    
    dc - the current draw context.
  - makeTexture
```
protected WWTexture makeTexture(Object imageSource)
```
    Creates a WWTexture for a specified image source.
    
    Parameters:
    
    imageSource - the image source for which to create the texture.
    
    Returns:
    
    the new WWTexture.
    
    Throws:
    
    IllegalArgumentException - if the image source is null.
  - move
```
public void move(Position delta)
```
    Description copied from interface: Movable
    
    Shift the shape over the globe's surface while maintaining its original azimuth, its orientation relative to North.
    
    Specified by:
    
    move in interface Movable
    
    Parameters:
    
    delta - the latitude and longitude to add to the shape's reference position.
  - moveTo
```
public void moveTo(Globe globe,
                   Position position)
```
    Description copied from interface: Movable2
    
    Move the shape over the globe's surface while maintaining its original azimuth, its orientation relative to North.
    
    Specified by:
    
    moveTo in interface Movable2
    
    Parameters:
    
    globe - the globe on which to move the shape.
    
    position - the new position of the shape's reference position.
  - mustApplyLighting
```
protected boolean mustApplyLighting(DrawContext dc)
```
    Indicates whether standard lighting must be applied by consulting the current active attributes. Calls mustApplyLighting(DrawContext, ShapeAttributes), specifying null for the activeAttrs.
    
    Parameters:
    
    dc - the current draw context
    
    Returns:
    
    true if lighting must be applied, otherwise false.
  - mustApplyLighting
```
protected boolean mustApplyLighting(DrawContext dc,
                                    ShapeAttributes activeAttrs)
```
    Indicates whether standard lighting must be applied by consulting either the specified active attributes or the current active attributes.
    
    Parameters:
    
    dc - the current draw context
    
    activeAttrs - the attribute bundle to consider when determining whether lighting is applied. May be null, in which case the current active attributes are used.
    
    Returns:
    
    true if lighting must be applied, otherwise false.
  - mustApplyTexture
```
protected abstract boolean mustApplyTexture(DrawContext dc)
```
    Indicates whether texture should be applied to this shape. Called during rendering to determine whether texture state should be established during preparation for interior drawing.
    Note: This method always returns false during the pick pass.
    
    Parameters:
    
    dc - the current draw context
    
    Returns:
    
    true if texture should be applied, otherwise false.
  - mustCreateNormals
```
protected boolean mustCreateNormals(DrawContext dc)
```
    Indicates whether normal vectors must be computed by consulting the current active attributes. Calls mustCreateNormals(DrawContext, ShapeAttributes), specifying null for the activeAttrs.
    
    Parameters:
    
    dc - the current draw context
    
    Returns:
    
    true if normal vectors must be computed, otherwise false.
  - mustCreateNormals
```
protected boolean mustCreateNormals(DrawContext dc,
                                    ShapeAttributes activeAttrs)
```
    Indicates whether normal vectors must be computed by consulting either the specified active attributes or the current active attributes. Calls mustApplyLighting(DrawContext, ShapeAttributes), passing the specified active attrs.
    
    Parameters:
    
    dc - the current draw context
    
    activeAttrs - the attribute bundle to consider when determining whether normals should be computed. May be null, in which case the current active attributes are used.
    
    Returns:
    
    true if normal vectors must be computed, otherwise false.
  - mustDrawInterior
```
protected boolean mustDrawInterior()
```
    Indicates whether this shape's interior must be drawn.
    
    Returns:
    
    true if an interior must be drawn, otherwise false.
  - mustDrawOutline
```
protected boolean mustDrawOutline()
```
    Indicates whether this shape's outline must be drawn.
    
    Returns:
    
    true if the outline should be drawn, otherwise false.
  - mustRegenerateGeometry
```
protected boolean mustRegenerateGeometry(DrawContext dc)
```
    Indicates whether this shape's renderable geometry must be recomputed, either as a result of an attribute or property change or the expiration of the geometry regeneration interval.
    A AbstractShape.AbstractShapeData must be current when this method is called.
    
    Parameters:
    
    dc - the current draw context.
    
    Returns:
    
    true if this shape's geometry must be regenerated, otherwise false.
  - pick
```
public void pick(DrawContext dc,
                 Point pickPoint)
```
    Description copied from interface: OrderedRenderable
    
    Executes a pick of the ordered renderable.
    
    Specified by:
    
    pick in interface OrderedRenderable
    
    Parameters:
    
    dc - the current draw context.
    
    pickPoint - the pick point.
  - prepareToDrawInterior
```
protected void prepareToDrawInterior(DrawContext dc,
                                     ShapeAttributes activeAttrs,
                                     ShapeAttributes defaultAttrs)
```
    Establishes OpenGL state for drawing the interior, including setting the color/material. Enabling texture is left to the subclass.
    
    Parameters:
    
    dc - the current draw context.
    
    activeAttrs - the attributes indicating the state value to set.
    
    defaultAttrs - the attributes to use if activeAttrs does not contain a necessary value.
  - prepareToDrawOutline
```
protected void prepareToDrawOutline(DrawContext dc,
                                    ShapeAttributes activeAttrs,
                                    ShapeAttributes defaultAttrs)
```
    Establishes OpenGL state for drawing the outline, including setting the color/material, line smoothing, line width and stipple. Disables texture.
    
    Parameters:
    
    dc - the current draw context.
    
    activeAttrs - the attributes indicating the state value to set.
    
    defaultAttrs - the attributes to use if activeAttrs does not contain a necessary value.
  - preRender
```
public void preRender(DrawContext dc)
```
    Specified by:
    
    preRender in interface PreRenderable
  - render
```
public void render(DrawContext dc)
```
    Description copied from interface: Renderable
    
    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
  - reset
```
protected void reset()
```
    Invalidates computed values. Called when this shape's contents or certain attributes change.
  - restoreState
```
public void restoreState(String stateInXml)
```
    Description copied from interface: Restorable
    
    Restores the object's state to what is described in the specified XML document string.
    
    Specified by:
    
    restoreState in interface Restorable
    
    Parameters:
    
    stateInXml - an XML document string describing an object's state.
  - setAltitudeMode
```
public void setAltitudeMode(int altitudeMode)
```
    Specifies this shape's altitude mode, one of WorldWind.ABSOLUTE, WorldWind.RELATIVE_TO_GROUND or WorldWind.CLAMP_TO_GROUND.
    Note: If the altitude mode is unrecognized, WorldWind.ABSOLUTE is used.
    Note: Subclasses may recognize additional altitude modes or may not recognize the ones described above.
    
    Parameters:
    
    altitudeMode - the altitude mode. The default value is WorldWind.ABSOLUTE.
  - setAttributes
```
public void setAttributes(ShapeAttributes normalAttrs)
```
    Specifies this shape's normal (as opposed to highlight) attributes.
    
    Specified by:
    
    setAttributes in interface Attributable
    
    Parameters:
    
    normalAttrs - the normal attributes. May be null, in which case default attributes are used.
  - setDelegateOwner
```
public void setDelegateOwner(Object delegateOwner)
```
  - setDragEnabled
```
public void setDragEnabled(boolean enabled)
```
    Description copied from interface: Draggable
    
    Controls whether the object is enabled for dragging.
    
    Specified by:
    
    setDragEnabled in interface Draggable
    
    Parameters:
    
    enabled - true if the object is enabled, else false.
  - setEnableBatchPicking
```
public void setEnableBatchPicking(boolean enableBatchPicking)
```
    Specifies whether adjacent shapes of this shape's concrete type in the ordered renderable list may be pick-tested together if they are contained in the same layer. This increases performance but allows only the top-most of the polygons to be reported in a SelectEvent even if several of the polygons are at the pick position.
    Batch rendering (setEnableBatchRendering(boolean)) must be enabled in order for batch picking to occur.
    
    Parameters:
    
    enableBatchPicking - true to enable batch rendering, otherwise false.
  - setEnableBatchRendering
```
public void setEnableBatchRendering(boolean enableBatchRendering)
```
    Specifies whether adjacent shapes of this shape's concrete type in the ordered renderable list may be rendered together if they are contained in the same layer. This increases performance. There is seldom a reason to disable it.
    
    Parameters:
    
    enableBatchRendering - true to enable batch rendering, otherwise false.
  - setEnableDepthOffset
```
public void setEnableDepthOffset(boolean enableDepthOffset)
```
    Specifies whether the filled sides of this shape should be offset towards the viewer to help eliminate artifacts when two or more faces of this or other filled shapes are coincident. See Offset.
    
    Parameters:
    
    enableDepthOffset - true if depth offset is applied, otherwise false.
  - setGeometryRegenerationInterval
```
public void setGeometryRegenerationInterval(int geometryRegenerationInterval)
```
    Specifies the maximum length of time between geometry regenerations. The geometry is regenerated when this shape's altitude mode is WorldWind.CLAMP_TO_GROUND or WorldWind.RELATIVE_TO_GROUND in order to capture changes to the terrain. (The terrain changes when its resolution changes or when new elevation data is returned from a server.) Decreasing this value causes the geometry to more quickly track terrain changes but at the cost of performance. Increasing this value often does not have much effect because there are limiting factors other than geometry regeneration.
    
    Parameters:
    
    geometryRegenerationInterval - the geometry regeneration interval, in milliseconds. The default is two seconds.
  - setHighlightAttributes
```
public void setHighlightAttributes(ShapeAttributes highlightAttrs)
```
    Specifies this shape's highlight attributes.
    
    Specified by:
    
    setHighlightAttributes in interface Attributable
    
    Parameters:
    
    highlightAttrs - the highlight attributes. May be null, in which case default attributes are used.
  - setHighlighted
```
public void setHighlighted(boolean highlighted)
```
    Description copied from interface: Highlightable
    
    Specifies whether to highlight the shape.
    
    Specified by:
    
    setHighlighted in interface Highlightable
    
    Parameters:
    
    highlighted - true to highlight the shape, otherwise false.
  - setOutlinePickWidth
```
public void setOutlinePickWidth(int outlinePickWidth)
```
    Specifies the outline line width to use during picking. A larger width than normal typically makes the outline easier to pick.
    Note that the size of the pick aperture also affects the precision necessary to pick.
    
    Parameters:
    
    outlinePickWidth - the outline pick width. The default is 10.
    
    Throws:
    
    IllegalArgumentException - if the width is less than 0.
  - setReferencePosition
```
public void setReferencePosition(Position referencePosition)
```
    Specifies the position to use as a reference position for computed geometry. This value should typically left to the default value of the first position in the polygon's outer boundary.
    
    Parameters:
    
    referencePosition - the reference position. May be null, in which case the first position of the outer boundary is the reference position.
  - setViewDistanceExpiration
```
public void setViewDistanceExpiration(boolean viewDistanceExpiration)
```
    Specifies whether this shape's terrain-dependent geometry is continually computed as its distance from the eye point changes. This is often necessary to ensure that the shape is updated as the terrain precision changes. But it's often not necessary as well, and can be disabled.
    
    Parameters:
    
    viewDistanceExpiration - true to enable view distance expiration, otherwise false.
  - setVisible
```
public void setVisible(boolean visible)
```
    Specifies whether this shape is drawn during rendering.
    
    Parameters:
    
    visible - true to draw this shape, otherwise false. The default value is true.
    
    See Also:
    
    setAttributes(ShapeAttributes)
  - shouldUseVBOs
```
protected boolean shouldUseVBOs(DrawContext dc)
```
    Indicates whether this shape should use OpenGL vertex buffer objects.
    
    Parameters:
    
    dc - the current draw context.
    
    Returns:
    
    true if this shape should use vertex buffer objects, otherwise false.
  - updateSurfaceShape
```
protected void updateSurfaceShape()
```
    Sets surface shape parameters prior to picking and rendering the 2D shape used to represent this shape on 2D globes. Subclasses should override this method if they need to update more than the highlighted state, visibility state and delegate owner.

Class AbstractShape

Nested Class Summary

Field Summary

Fields inherited from interface gov.nasa.worldwind.Exportable

Constructor Summary

Method Summary

Methods inherited from class gov.nasa.worldwind.WWObjectImpl

Methods inherited from class gov.nasa.worldwind.avlist.AVListImpl

Methods inherited from class java.lang.Object

Methods inherited from interface gov.nasa.worldwind.Movable

Methods inherited from interface gov.nasa.worldwind.Movable2

Methods inherited from interface gov.nasa.worldwind.render.GeographicExtent

Methods inherited from interface gov.nasa.worldwind.avlist.AVList

Field Detail

activeAttributes

altitudeMode

BEogsh

currentData

DEFAULT_ALTITUDE_MODE

DEFAULT_GEOMETRY_GENERATION_INTERVAL

DEFAULT_HIGHLIGHT_MATERIAL

DEFAULT_INTERIOR_MATERIAL

DEFAULT_OUTLINE_MATERIAL

DEFAULT_OUTLINE_PICK_WIDTH

defaultAttributes

delegateOwner

dragEnabled

draggableSupport

enableBatchPicking

enableBatchRendering

enableDepthOffset

highlightAttrs

highlighted

maxExpiryTime

minExpiryTime

normalAttrs

outlinePickWidth

outlineShapeRenderer

pickLayer

pickSupport

referencePosition

sector

shapeDataCache

surfaceShape

VBO_THRESHOLD

viewDistanceExpiration

visible

Constructor Detail

AbstractShape

AbstractShape

Method Detail

addOrderedRenderable

beginDrawing

checkViewDistanceExpiration

clearCachedVbos

computeExtentFromPositions

computePoint

computePoint

countTriangleVertices

createCacheEntry

createPickedObject

createSurfaceShape

determineActiveAttributes

doDrag

doDrawInterior

doDrawOrderedRenderable

doDrawOutline

doExportAsKML

doGetRestorableState

doMakeOrderedRenderable

doRestoreState

drag

drawBatched

drawInterior

drawOrderedRenderable

drawOutline

endDrawing

export

exportAsKML

fillVBO