gov.nasa.worldwind.util

Class ClippingTessellator

java.lang.Object

gov.nasa.worldwind.util.ClippingTessellator

public class ClippingTessellator
extends java.lang.Object

ClippingTessellator

Field Summary

Fields

Modifier and Type	Field and Description
protected double[]	clipDegrees
protected int	prevClipCode
protected double[]	prevCoord
protected GLUtessellator	tessellator

Constructor Summary

Constructors

Constructor and Description
ClippingTessellator(GLUtessellator tessellator, Sector sector)

Method Summary

Modifier and Type	Method and Description
void	addVertex(double degreesLatitude, double degreesLongitude)
void	beginContour()
protected int	clipCode(double degreesLatitude, double degreesLongitude) Computes a 4-bit code indicating the vertex's location in the 9 cell grid defined by the clip coordinates and the eight adjacent spaces defined by extending the min/max boundaries to infinity.
protected void	doAddVertex(double degreesLatitude, double degreesLongitude)
void	endContour()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

clipDegrees

protected double[] clipDegrees

prevClipCode

protected int prevClipCode

prevCoord

protected double[] prevCoord

tessellator

protected GLUtessellator tessellator

Constructor Detail

ClippingTessellator

public ClippingTessellator(GLUtessellator tessellator,
                           Sector sector)

Method Detail

addVertex

public void addVertex(double degreesLatitude,
                      double degreesLongitude)

beginContour

public void beginContour()

clipCode

protected int clipCode(double degreesLatitude,
                       double degreesLongitude)

Computes a 4-bit code indicating the vertex's location in the 9 cell grid defined by the clip coordinates and the eight adjacent spaces defined by extending the min/max boundaries to infinity. 0 indicates that the vertex is inside the clip coordinates.

doAddVertex

protected void doAddVertex(double degreesLatitude,
                           double degreesLongitude)

endContour

public void endContour()