com.luciad.contour

LuciadLightspeedClass TLcdXYPolylineContourBuilder

java.lang.Object

com.luciad.contour.TLcdXYPolylineContourBuilder

All Implemented Interfaces:

ILcdContourBuilder

public class TLcdXYPolylineContourBuilder
extends Object
implements ILcdContourBuilder

ILcdContourBuilder implementation for usage with the TLcdPolylineContourFinder. It will create a polyline in a TLcdIntervalContour or TLcdValuedContour and provide it to the ILcdFunction whenever createContour is called by the contour finder.

Since:

10.1

Constructor Summary

Constructors

Constructor and Description
TLcdXYPolylineContourBuilder(ILcdFunction aFunction) Construct a new TLcdXYPolylineContourBuilder.

Method Summary

Modifier and Type	Method and Description
void	createContour(double[] aXCoordinates, double[] aYCoordinates, int aPointCount, boolean aClosed) Collect a single open or closed contour for the level the contour finder is calculating.
void	endLevel() This method is called by the contour finder when it is done finding contours for the current level.
void	startLevel(double aValue) This method is called by the contour finder when it starts finding contours for a new level, when the contour represents an exact value.
void	startLevel(ILcdInterval aInterval) This method is called by the contour finder when it starts finding contours for a new level, when the contour represents a range of values (an interval).

Methods inherited from class java.lang.Object

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

Constructor Detail

TLcdXYPolylineContourBuilder

public TLcdXYPolylineContourBuilder(ILcdFunction aFunction)

Construct a new TLcdXYPolylineContourBuilder.

Parameters:

aFunction - A function that will be provided with TLcdValuedContour instances which contain an ILcdPolyline as base shape.

Method Detail

createContour

public void createContour(double[] aXCoordinates,
                          double[] aYCoordinates,
                          int aPointCount,
                          boolean aClosed)

Description copied from interface: ILcdContourBuilder

Collect a single open or closed contour for the level the contour finder is calculating.

Specified by:

createContour in interface ILcdContourBuilder

Parameters:

aXCoordinates - The array of x-coordinates.

aYCoordinates - The array of y-coordinates.

aPointCount - The number of coordinates to take into account.

aClosed - Whether the given array of points represents an open or a closed contour. In the case of a closed contour, the first and the last provided coordinate are not the same. Some shapes, such as ILcdPolyline, require that the first and last point of a closed contour are the same, in that case it needs to be added by the implementation.

startLevel

public void startLevel(ILcdInterval aInterval)

Description copied from interface: ILcdContourBuilder

This method is called by the contour finder when it starts finding contours for a new level, when the contour represents a range of values (an interval).

Specified by:

startLevel in interface ILcdContourBuilder

Parameters:

aInterval - The interval representing this level. The is the range of values represented by the lines or areas of the contours of this level.

startLevel

public void startLevel(double aValue)

Description copied from interface: ILcdContourBuilder

This method is called by the contour finder when it starts finding contours for a new level, when the contour represents an exact value.

Specified by:

startLevel in interface ILcdContourBuilder

Parameters:

aValue - The value of the contour.

endLevel

public void endLevel()

Description copied from interface: ILcdContourBuilder

This method is called by the contour finder when it is done finding contours for the current level.

Specified by:

endLevel in interface ILcdContourBuilder