org.h2gis.functions.spatial.create

Class ST_RingBuffer

java.lang.Object

org.h2gis.api.AbstractFunction

org.h2gis.functions.spatial.create.ST_RingBuffer

All Implemented Interfaces:

org.h2gis.api.Function, org.h2gis.api.ScalarFunction

public class ST_RingBuffer
extends org.h2gis.api.AbstractFunction
implements org.h2gis.api.ScalarFunction

Compute a ring buffer around a geometry.

Author:

Erwan Bocher

Field Summary

Fields inherited from interface org.h2gis.api.ScalarFunction

PROP_DETERMINISTIC, PROP_NOBUFFER

Fields inherited from interface org.h2gis.api.Function

PROP_NAME, PROP_REMARKS

Constructor Summary

Constructors

Constructor and Description
ST_RingBuffer()

Method Summary

Modifier and Type	Method and Description
static org.locationtech.jts.geom.Geometry	computeNegativeRingBuffer(org.locationtech.jts.geom.Geometry geom, double bufferDistance, int numBuffer, org.locationtech.jts.operation.buffer.BufferParameters bufferParameters, boolean doDifference) Compute a ring buffer with a negative offset
static org.locationtech.jts.geom.Geometry	computePositiveRingBuffer(org.locationtech.jts.geom.Geometry geom, double bufferDistance, int numBuffer, org.locationtech.jts.operation.buffer.BufferParameters bufferParameters, boolean doDifference) Compute a ring buffer with a positive offset
String	getJavaStaticMethod()
static org.locationtech.jts.geom.Geometry	ringBuffer(org.locationtech.jts.geom.Geometry geom, double bufferSize, int numBuffer) Compute a ring buffer around a geometry
static org.locationtech.jts.geom.Geometry	ringBuffer(org.locationtech.jts.geom.Geometry geom, double bufferDistance, int numBuffer, String parameters)
static org.locationtech.jts.geom.Geometry	ringBuffer(org.locationtech.jts.geom.Geometry geom, double bufferDistance, int numBuffer, String parameters, boolean doDifference) Compute a ring buffer around a geometry
static org.locationtech.jts.geom.Geometry	runBuffer(org.locationtech.jts.geom.Geometry geom, double bufferSize, org.locationtech.jts.operation.buffer.BufferParameters bufferParameters) Calculate the ring buffer

Methods inherited from class org.h2gis.api.AbstractFunction

addProperty, getProperty, removeProperty

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.h2gis.api.Function

getProperty

Constructor Detail

ST_RingBuffer

public ST_RingBuffer()

Method Detail

getJavaStaticMethod

public String getJavaStaticMethod()

Specified by:

getJavaStaticMethod in interface org.h2gis.api.ScalarFunction

ringBuffer

public static org.locationtech.jts.geom.Geometry ringBuffer(org.locationtech.jts.geom.Geometry geom,
                                                            double bufferSize,
                                                            int numBuffer)
                                                     throws SQLException

Compute a ring buffer around a geometry

Parameters:

geom -

bufferSize -

numBuffer -

Returns:

Throws:

SQLException

ringBuffer

public static org.locationtech.jts.geom.Geometry ringBuffer(org.locationtech.jts.geom.Geometry geom,
                                                            double bufferDistance,
                                                            int numBuffer,
                                                            String parameters)
                                                     throws SQLException

Parameters:

geom -

bufferDistance -

numBuffer -

parameters -

Returns:

Throws:

SQLException

ringBuffer

public static org.locationtech.jts.geom.Geometry ringBuffer(org.locationtech.jts.geom.Geometry geom,
                                                            double bufferDistance,
                                                            int numBuffer,
                                                            String parameters,
                                                            boolean doDifference)
                                                     throws SQLException

Compute a ring buffer around a geometry

Parameters:

geom -

bufferDistance -

numBuffer -

parameters -

doDifference -

Returns:

Throws:

SQLException

computePositiveRingBuffer

public static org.locationtech.jts.geom.Geometry computePositiveRingBuffer(org.locationtech.jts.geom.Geometry geom,
                                                                           double bufferDistance,
                                                                           int numBuffer,
                                                                           org.locationtech.jts.operation.buffer.BufferParameters bufferParameters,
                                                                           boolean doDifference)
                                                                    throws SQLException

Compute a ring buffer with a positive offset

Parameters:

geom -

bufferDistance -

numBuffer -

bufferParameters -

doDifference -

Returns:

Throws:

SQLException

computeNegativeRingBuffer

public static org.locationtech.jts.geom.Geometry computeNegativeRingBuffer(org.locationtech.jts.geom.Geometry geom,
                                                                           double bufferDistance,
                                                                           int numBuffer,
                                                                           org.locationtech.jts.operation.buffer.BufferParameters bufferParameters,
                                                                           boolean doDifference)
                                                                    throws SQLException

Compute a ring buffer with a negative offset

Parameters:

geom -

bufferDistance -

numBuffer -

bufferParameters -

doDifference -

Returns:

Throws:

SQLException

runBuffer

public static org.locationtech.jts.geom.Geometry runBuffer(org.locationtech.jts.geom.Geometry geom,
                                                           double bufferSize,
                                                           org.locationtech.jts.operation.buffer.BufferParameters bufferParameters)
                                                    throws SQLException

Calculate the ring buffer

Parameters:

geom -

bufferSize -

bufferParameters -

Returns:

Throws:

SQLException