gov.nasa.worldwind.render
Class Polygon.ShapeData

java.lang.Object
  gov.nasa.worldwind.avlist.AVListImpl
      gov.nasa.worldwind.cache.ShapeDataCache.ShapeDataCacheEntry
          gov.nasa.worldwind.render.AbstractShape.AbstractShapeData
              gov.nasa.worldwind.render.Polygon.ShapeData

All Implemented Interfaces:

AVList, Iterable<Polygon.BoundaryInfo>

Enclosing class:

Polygon

protected static class Polygon.ShapeData
extends AbstractShape.AbstractShapeData
implements Iterable<Polygon.BoundaryInfo>

This class holds globe-specific data for this shape. It's managed via the shape-data cache in AbstractShape.AbstractShapeData.

Field Summary

protected List<Polygon.BoundaryInfo>	boundaries This class holds the per-globe data for this shape.
protected GLUTessellatorSupport.CollectIndexListsCallback	cb This shape's tessellation indices.
protected FloatBuffer	coordBuffer The vertex data buffer for this shape data.
protected IntBuffer	interiorIndicesBuffer The indices identifying the cap vertices in a shape data's vertex buffer.
protected FloatBuffer	normalBuffer The slice of the coordBuffer that contains normals.
protected int	normalBufferPosition The index of the first normal in the coordBuffer.
protected boolean	refillIndexBuffer Indicates whether the index buffer needs to be filled because a new buffer is used or some other reason.
protected boolean	refillIndexVBO Indicates whether the index buffer's VBO needs to be filled because a new buffer is used or some other reason.
protected Matrix	rotationMatrix The rotation matrix for this shape data.
protected boolean	tessellationError Indicates whether a tessellation error occurred.

Fields inherited from class gov.nasa.worldwind.render.AbstractShape.AbstractShapeData

frameNumber, referenceDistance, referencePoint, vboCacheKey

Fields inherited from class gov.nasa.worldwind.cache.ShapeDataCache.ShapeDataCacheEntry

extent, eyeDistance, globeStateKey, lastUsed, timer, verticalExaggeration

Constructor Summary

Polygon.ShapeData(DrawContext dc, Polygon shape)
Construct a cache entry using the boundaries of this shape.

Method Summary

protected Polygon.BoundaryInfo	getOuterBoundaryInfo() Returns the boundary information for this shape data's outer boundary.
Matrix	getRotationMatrix() Returns this shape data's rotation matrix, if there is one.
Iterator<Polygon.BoundaryInfo>	iterator()
void	setRotationMatrix(Matrix matrix) Specifies this shape data's rotation matrix.

Methods inherited from class gov.nasa.worldwind.render.AbstractShape.AbstractShapeData

getFrameNumber, getReferenceDistance, getReferencePoint, getVboCacheKey, setFrameNumber, setReferenceDistance, setReferencePoint, setVboCacheKey

Methods inherited from class gov.nasa.worldwind.cache.ShapeDataCache.ShapeDataCacheEntry

getExtent, getEyeDistance, getGlobeStateKey, getTimer, getVerticalExaggeration, isExpired, isValid, restartTimer, setExpired, setExtent, setEyeDistance, setGlobeStateKey, setTimer, setVerticalExaggeration

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

Field Detail

boundaries

protected List<Polygon.BoundaryInfo> boundaries

This class holds the per-globe data for this shape.

cb

protected GLUTessellatorSupport.CollectIndexListsCallback cb

This shape's tessellation indices.

coordBuffer

protected FloatBuffer coordBuffer

The vertex data buffer for this shape data. The first half contains vertex coordinates, the second half contains normals.

interiorIndicesBuffer

protected IntBuffer interiorIndicesBuffer

The indices identifying the cap vertices in a shape data's vertex buffer. Determined when this shape is tessellated, which occurs only once unless the shape's boundaries are re-specified.

normalBuffer

protected FloatBuffer normalBuffer

The slice of the coordBuffer that contains normals.

normalBufferPosition

protected int normalBufferPosition

The index of the first normal in the coordBuffer.

refillIndexBuffer

protected boolean refillIndexBuffer

Indicates whether the index buffer needs to be filled because a new buffer is used or some other reason.

refillIndexVBO

protected boolean refillIndexVBO

Indicates whether the index buffer's VBO needs to be filled because a new buffer is used or some other reason.

rotationMatrix

protected Matrix rotationMatrix

The rotation matrix for this shape data.

tessellationError

protected boolean tessellationError

Indicates whether a tessellation error occurred. No more attempts to tessellate will be made if set to true.

Constructor Detail

Polygon.ShapeData

public Polygon.ShapeData(DrawContext dc,
                         Polygon shape)

Construct a cache entry using the boundaries of this shape.

Parameters:

dc - the current draw context.

shape - this shape.

Method Detail

getOuterBoundaryInfo

protected Polygon.BoundaryInfo getOuterBoundaryInfo()

Returns the boundary information for this shape data's outer boundary.

Returns:

this shape data's outer boundary info.

getRotationMatrix

public Matrix getRotationMatrix()

Returns this shape data's rotation matrix, if there is one.

Returns:

this shape data's rotation matrix, or null if there isn't one.

iterator

public Iterator<Polygon.BoundaryInfo> iterator()

Specified by:

iterator in interface Iterable<Polygon.BoundaryInfo>

setRotationMatrix

public void setRotationMatrix(Matrix matrix)

Specifies this shape data's rotation matrix.

Parameters:

matrix - the new rotation matrix.