Class RandomPointsBuilder

java.lang.Object

org.locationtech.jts.shape.GeometricShapeBuilder

org.locationtech.jts.shape.random.RandomPointsBuilder

public class RandomPointsBuilder
extends GeometricShapeBuilder

Creates random point sets contained in a region defined by either a rectangular or a polygonal extent.

Author:

mbdavis

Field Summary

Fields

Modifier and Type	Field	Description
protected Geometry	maskPoly

Fields inherited from class GeometricShapeBuilder

extent, geomFactory, numPts

Constructor Summary

Constructors

Constructor	Description
RandomPointsBuilder()	Create a shape factory which will create shapes using the default GeometryFactory.
RandomPointsBuilder(GeometryFactory geomFact)	Create a shape factory which will create shapes using the given GeometryFactory.

Method Summary

Modifier and Type	Method	Description
protected Coordinate	createCoord(double x, double y)
protected Coordinate	createRandomCoord(Envelope env)
Geometry	getGeometry()
protected boolean	isInExtent(Coordinate p)
void	setExtent(Geometry mask)	Sets a polygonal mask.

Methods inherited from class GeometricShapeBuilder

getCentre, getDiameter, getExtent, getRadius, getSquareBaseLine, getSquareExtent, setExtent, setNumPoints

Methods inherited from class Object

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

Field Details

maskPoly

protected Geometry maskPoly

Constructor Details

RandomPointsBuilder

public RandomPointsBuilder()

Create a shape factory which will create shapes using the default GeometryFactory.

RandomPointsBuilder

public RandomPointsBuilder(GeometryFactory geomFact)

Create a shape factory which will create shapes using the given GeometryFactory.

Parameters:

geomFact - the factory to use

Method Details

setExtent

public void setExtent(Geometry mask)

Sets a polygonal mask.

Parameters:

mask -

Throws:

IllegalArgumentException - if the mask is not polygonal

getGeometry

public Geometry getGeometry()

Specified by:

getGeometry in class GeometricShapeBuilder

isInExtent

protected boolean isInExtent(Coordinate p)

createCoord

protected Coordinate createCoord(double x,
 double y)

Overrides:

createCoord in class GeometricShapeBuilder

createRandomCoord

protected Coordinate createRandomCoord(Envelope env)