org.gvsig.raster.impl.process.vector

Class PotraceVectorization

java.lang.Object

org.gvsig.raster.impl.process.vector.PotraceVectorization

All Implemented Interfaces:

Vectorization

public class PotraceVectorization
extends Object
implements Vectorization

La clase VectorizationBinding se usa para poder vectorizar una capa raster.

La entrada es una capa raster, ya sea en un fichero, BufferFactory o un RasterDataset.

El uso de comunicacion con la libreria jpotrace es como funciona el comando potrace, de hecho, se pueden aņadir mas opciones si potrace los admite por linea de comandos.

Una vez creada una instancia a VectorizationBinding. Se definen todos los parametros deseables o en caso de no definirlos se usaran los valores por defecto y se invoca al metodo VectorizeBuffer()

Este ultimo metodo, devuelve un array de doubles indicando si lo que se ha devuelto son operaciones tipicas de shapes... MoveTo, LineTo, CurveTo, etc...

En la primera posicion se devuelve el tamaņo del array.

03/09/2008

Field Summary

Fields inherited from interface org.gvsig.fmap.dal.coverage.process.vector.Vectorization

POLICY_BLACK, POLICY_LEFT, POLICY_MAJORITY, POLICY_MINORITY, POLICY_RANDOM, POLICY_RIGHT, POLICY_WHITE

Constructor Summary

Constructors

Constructor and Description
PotraceVectorization(QueryableRaster dataset) Construye un VectorizationBinding a partir de un RasterDataset
PotraceVectorization(RasterDataStore dataSource) Construye un VectorizationBinding a partir de un BufferFactory
PotraceVectorization(String file) Construye un VectorizationBinding a partir de la ruta de un Raster

Method Summary

Modifier and Type	Method and Description
boolean	isEnabledCurveOptimization() Return if the curve optimization is enabled or disabled
void	setCornerThreshold(double value) Set the corner threshold parameter (default 1)
void	setDespeckle(int value) Suppress speckles of up to this size (default 2)
void	setEnabledCurveOptimization(boolean value) Enable/Disable the curve optimization (default enabled)
void	setOptimizationTolerance(double value) Set the curve optimization tolerance (default 0.2)
void	setOutputQuantization(int value) Quantize output to 1/unit pixels (default 10)
void	setPolicy(int value) Set how to resolve ambiguities in path decomposition Use: POLICY_BLACK POLICY_LEFT POLICY_MAJORITY POLICY_MINORITY POLICY_RANDOM POLICY_RIGHT POLICY_WHITE
double[]	VectorizeBuffer() Hace el proeso de Vectorizacion de un Raster

Methods inherited from class java.lang.Object

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

Constructor Detail

PotraceVectorization

public PotraceVectorization(String file)
                     throws QueryException,
                            NotSupportedExtensionException,
                            RasterDriverException,
                            ProcessInterruptedException

Construye un VectorizationBinding a partir de la ruta de un Raster

Parameters:

file -

Throws:

NotSupportedExtensionException

RasterDriverException

ProcessInterruptedException

QueryException

PotraceVectorization

public PotraceVectorization(QueryableRaster dataset)
                     throws ProcessInterruptedException,
                            QueryException

Construye un VectorizationBinding a partir de un RasterDataset

Parameters:

dataset -

Throws:

RasterDriverException

ProcessInterruptedException

ProcessInterruptedException

RasterDriverException

QueryException

PotraceVectorization

public PotraceVectorization(RasterDataStore dataSource)
                     throws ProcessInterruptedException,
                            QueryException

Construye un VectorizationBinding a partir de un BufferFactory

Parameters:

bufferFactory -

Throws:

RasterDriverException

ProcessInterruptedException

ProcessInterruptedException

RasterDriverException

QueryException

Method Detail

setCornerThreshold

public void setCornerThreshold(double value)

Set the corner threshold parameter (default 1)

Specified by:

setCornerThreshold in interface Vectorization

Parameters:

value -

setOutputQuantization

public void setOutputQuantization(int value)

Quantize output to 1/unit pixels (default 10)

Specified by:

setOutputQuantization in interface Vectorization

Parameters:

value -

setDespeckle

public void setDespeckle(int value)

Suppress speckles of up to this size (default 2)

Specified by:

setDespeckle in interface Vectorization

Parameters:

value -

setPolicy

public void setPolicy(int value)

Set how to resolve ambiguities in path decomposition

Use:
POLICY_BLACK
POLICY_LEFT
POLICY_MAJORITY
POLICY_MINORITY
POLICY_RANDOM
POLICY_RIGHT
POLICY_WHITE

Specified by:

setPolicy in interface Vectorization

Parameters:

value -

setOptimizationTolerance

public void setOptimizationTolerance(double value)

Set the curve optimization tolerance (default 0.2)

Specified by:

setOptimizationTolerance in interface Vectorization

Parameters:

value -

isEnabledCurveOptimization

public boolean isEnabledCurveOptimization()

Return if the curve optimization is enabled or disabled

Specified by:

isEnabledCurveOptimization in interface Vectorization

Parameters:

value -

setEnabledCurveOptimization

public void setEnabledCurveOptimization(boolean value)

Enable/Disable the curve optimization (default enabled)

Specified by:

setEnabledCurveOptimization in interface Vectorization

Parameters:

value -

VectorizeBuffer

public double[] VectorizeBuffer()

Hace el proeso de Vectorizacion de un Raster

Specified by:

VectorizeBuffer in interface Vectorization

Returns:

Throws:

PotraceException