org.locationtech.jtsexample.geom.prep

Class PreparedGeometryExample

java.lang.Object

org.locationtech.jtsexample.geom.prep.PreparedGeometryExample

public class PreparedGeometryExample
extends java.lang.Object

Shows use of PreparedGeometry in a batch (repeated) operation. The example uses a Monte Carlo method to approximate the value of Pi. Given a circle inscribed in a square and a large number of random points in the square, the number of points which intersect the circle approximates Pi/4. This involves repeated Point-In-Polygon tests, which is one of the geometry tests optimized by the PreparedGeometry implementation for polygons.

Version:

1.7

Field Summary

Fields

Modifier and Type	Field and Description
(package private) static GeometryFactory	geomFact
(package private) static int	MAX_ITER

Constructor Summary

Constructors

Constructor and Description
PreparedGeometryExample()

Method Summary

Modifier and Type	Method and Description
(package private) static Geometry	createCircle()
(package private) static Point	createRandomPoint()
static void	main(java.lang.String[] args)

Methods inherited from class java.lang.Object

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

Field Detail

geomFact

static GeometryFactory geomFact

MAX_ITER

static final int MAX_ITER

See Also:

Constant Field Values

Constructor Detail

PreparedGeometryExample

public PreparedGeometryExample()

Method Detail

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Throws:

java.lang.Exception

createCircle

static Geometry createCircle()

createRandomPoint

static Point createRandomPoint()