org.gvsig.geoprocess.algorithm.buffer

Class BufferOperation

java.lang.Object

org.gvsig.geoprocess.algorithm.base.core.GeometryOperation

org.gvsig.geoprocess.algorithm.buffer.BufferOperation

Direct Known Subclasses:

InBufferOperation, InOutBufferOperation, LateralBufferOperation, OutBufferOperation

public abstract class BufferOperation
extends GeometryOperation

Buffer operation

Field Summary

Fields

Modifier and Type	Field and Description
static byte	CAP_ROUND
static byte	CAP_SQUARE
protected byte	capBuffer
protected IDistance	distance
protected int	id
protected int	numberOfRadialBuffers
protected IProjection	projection
protected byte	tableFieldStructure

Fields inherited from class org.gvsig.geoprocess.algorithm.base.core.GeometryOperation

inFeatureStore, inFeatureStoreList, lastEditFeature, numberOfFeatures, persister, process, procesSize, selectedGeomInput, selectedGeomOverlay, status

Constructor Summary

Constructors

Constructor and Description
BufferOperation(IDistance distance, FeatureStore inputStore, AbstractSextanteGeoProcess p, byte tableFieldStructure)

Method Summary

Modifier and Type	Method and Description
protected void	addFeature(Feature feature, Geometry newGeom) Deprecated. No es necesario porque no hay diferencia entre las llamadas entre ambos invoke
IDistance	getDistance()
protected int	getDistanceUnits() Returns the measurement unit of this view port used for measuring distances and displaying information.
protected int	getMapUnits() Gets the measurement unit used by this view port for the map.
byte	getTableFieldStructure()
void	setNumberOfRadialBuffers(int number) Sets number of radial rings buffers
void	setTypeOfCap(byte typeOfCap) Sets type of cap flag
protected boolean	verifyNilGeometry(Geometry newGeometry) Verifys if a geometry buffer is null.

Methods inherited from class org.gvsig.geoprocess.algorithm.base.core.GeometryOperation

computesFeatureOperation, computesGeometryOperation, computesGeometryOperationInAList, end, getResult, invoke, invoke, setFeatureStore, setGeoProcess, setProgressModel, setSelectedGeomOverlayLayer, setTaskStatus

Methods inherited from class java.lang.Object

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

Field Detail

CAP_SQUARE

public static final byte CAP_SQUARE

See Also:

Constant Field Values

CAP_ROUND

public static final byte CAP_ROUND

See Also:

Constant Field Values

capBuffer

protected byte capBuffer

numberOfRadialBuffers

protected int numberOfRadialBuffers

distance

protected IDistance distance

id

protected int id

projection

protected IProjection projection

tableFieldStructure

protected byte tableFieldStructure

Constructor Detail

BufferOperation

public BufferOperation(IDistance distance,
                       FeatureStore inputStore,
                       AbstractSextanteGeoProcess p,
                       byte tableFieldStructure)

Method Detail

verifyNilGeometry

protected boolean verifyNilGeometry(Geometry newGeometry)

Verifys if a geometry buffer is null. It is useful when you're working with internal buffers. If the internal buffer distance is greater than the geometry radius, the buffer result will be null.

Parameters:

newGeometry -

Returns:

addFeature

protected void addFeature(Feature feature,
                          Geometry newGeom)
                   throws CreateGeometryException,
                          DataException

Deprecated. No es necesario porque no hay diferencia entre las llamadas entre ambos invoke

Adds a new feature

Parameters:

feature -

newGeom -

Throws:

CreateGeometryException

DataException

setTypeOfCap

public void setTypeOfCap(byte typeOfCap)

Sets type of cap flag

Parameters:

typeOfCap -

setNumberOfRadialBuffers

public void setNumberOfRadialBuffers(int number)

Sets number of radial rings buffers

Parameters:

number -

getMapUnits

protected int getMapUnits()

Gets the measurement unit used by this view port for the map.

Returns:

Returns the current map measure unit

getDistanceUnits

protected int getDistanceUnits()

Returns the measurement unit of this view port used for measuring distances and displaying information.

Returns:

the measurement unit of this view used for measuring distances and displaying information

getTableFieldStructure

public byte getTableFieldStructure()

getDistance

public IDistance getDistance()