Package com.esri.core.geometry

Class OperatorConvexHullCursor

java.lang.Object

com.esri.core.geometry.GeometryCursor

com.esri.core.geometry.OperatorConvexHullCursor

class OperatorConvexHullCursor
extends GeometryCursor

Field Summary

Fields

Modifier and Type	Field	Description
private boolean	m_b_done
private boolean	m_b_merge
(package private) ConvexHull	m_hull
private int	m_index
private GeometryCursor	m_inputGeometryCursor
private ProgressTracker	m_progress_tracker

Constructor Summary

Constructors

Constructor	Description
OperatorConvexHullCursor(boolean b_merge, GeometryCursor geoms, ProgressTracker progress_tracker)

Method Summary

Modifier and Type	Method	Description
(package private) static Geometry	calculateConvexHull_(Geometry geom, ProgressTracker progress_tracker)
private Geometry	calculateConvexHullMerging_(GeometryCursor geoms, ProgressTracker progress_tracker)
int	getGeometryID()	Returns the ID of the current geometry.
(package private) static boolean	isConvex_(Geometry geom, ProgressTracker progress_tracker)
Geometry	next()	Moves the cursor to the next Geometry.
boolean	tock()	Executes a unit of work on the cursor.

Methods inherited from class java.lang.Object

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

Field Detail

m_progress_tracker

private ProgressTracker m_progress_tracker

m_b_merge

private boolean m_b_merge

m_b_done

private boolean m_b_done

m_inputGeometryCursor

private GeometryCursor m_inputGeometryCursor

m_index

private int m_index

m_hull

ConvexHull m_hull

Constructor Detail

OperatorConvexHullCursor

OperatorConvexHullCursor(boolean b_merge,
                         GeometryCursor geoms,
                         ProgressTracker progress_tracker)

Method Detail

next

public Geometry next()

Description copied from class: GeometryCursor

Moves the cursor to the next Geometry. Returns null when reached the end. The behavior of the cursor is undefined after the method returns null.

Specified by:

next in class GeometryCursor

getGeometryID

public int getGeometryID()

Description copied from class: GeometryCursor

Returns the ID of the current geometry. The ID is propagated across the operations (when possible). Returns an ID associated with the current Geometry. The ID is passed along and is returned by some operators to preserve relationship between the input and output geometry classes. It is not always possible to preserve an ID during an operation.

Specified by:

getGeometryID in class GeometryCursor

calculateConvexHullMerging_

private Geometry calculateConvexHullMerging_(GeometryCursor geoms,
                                             ProgressTracker progress_tracker)

tock

public boolean tock()

Description copied from class: GeometryCursor

Executes a unit of work on the cursor.

Overrides:

tock in class GeometryCursor

Returns:

Returns true, if there is a geometry ready to be pulled using next(). This method is to be used together with the tick() method on the ListeningGeometryCursor. Call tock() for each tick() on the ListeningGeometryCursor.

calculateConvexHull_

static Geometry calculateConvexHull_(Geometry geom,
                                     ProgressTracker progress_tracker)

isConvex_

static boolean isConvex_(Geometry geom,
                         ProgressTracker progress_tracker)