org.gvsig.raster.impl.grid.render

Class ImageDrawerImpl

java.lang.Object

org.gvsig.raster.impl.grid.render.ImageDrawerImpl

All Implemented Interfaces:

ImageDrawer

public class ImageDrawerImpl
extends Object
implements ImageDrawer

Objeto para la escritura de datos desde un buffer a un objeto Image. En este nivel de renderizado no se gestiona extents, ni rotaciones ni coordenadas del mundo, solo la escritura desde un buffer hasta otro de tamaño dado. Por medio de parámetros y de objetos de estado varia el resultado de la escritura, selección de bandas a escribir desde el buffer a RGB, transparencias aplicadas o paletas.

Constructor Summary

Constructors

Constructor and Description
ImageDrawerImpl()

Method Summary

Modifier and Type	Method and Description
Buffer	addEnhanced(Statistics stats) Adds a enhanced filter to the buffer
Buffer	addEnhanced(Statistics stats, boolean tailTrim, double tailTrimValue) Adds a enhanced filter to the buffer
void	addFilters(Statistics stats, List<RasterFilter> filters) Adds a list of filters
void	dispose() Releases the link to the buffer.
Image	drawBufferOverImageObject() Dibuja el buffer sobre un objeto Image de java.awt y devuelve el resultado.
protected void	finalize()
void	setBuffer(Buffer b) Sets the buffer to render
void	setLastTransparency(Transparency t) Assigns the buffer transparency
void	setOutputSize(int w, int h) Sets the size of the output buffer.
void	setSupersamplingOn(double[] step) Sets the shift in pixels from the upper left corner.

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageDrawerImpl

public ImageDrawerImpl()

Method Detail

setLastTransparency

public void setLastTransparency(Transparency t)

Description copied from interface: ImageDrawer

Assigns the buffer transparency

Specified by:

setLastTransparency in interface ImageDrawer

drawBufferOverImageObject

public Image drawBufferOverImageObject()
                                throws ProcessInterruptedException

Description copied from interface: ImageDrawer

Dibuja el buffer sobre un objeto Image de java.awt y devuelve el resultado.

Specified by:

drawBufferOverImageObject in interface ImageDrawer

Returns:

java.awt.Image con el buffer dibujado.

Throws:

ProcessInterruptedException

setBuffer

public void setBuffer(Buffer b)

Description copied from interface: ImageDrawer

Sets the buffer to render

Specified by:

setBuffer in interface ImageDrawer

setSupersamplingOn

public void setSupersamplingOn(double[] step)

Description copied from interface: ImageDrawer

Sets the shift in pixels from the upper left corner. It is useful when we need supersampling to render the image. If the step is null then the supersampling is deactivated else the size of the output buffer will be width X height pixels. This size should be set with setOutPutSize method. Exists supersampling when the zoom to draw is greater than 1:1. To draw a pixel will be necessary more than one pixel in the output buffer.

Specified by:

setSupersamplingOn in interface ImageDrawer

Parameters:

step - Desplazamiento

setOutputSize

public void setOutputSize(int w,
                          int h)

Description copied from interface: ImageDrawer

Sets the size of the output buffer. This is useful to reescale the output buffer

Specified by:

setOutputSize in interface ImageDrawer

Parameters:

w - Ancho

dispose

public void dispose()

Description copied from interface: ImageDrawer

Releases the link to the buffer.

Specified by:

dispose in interface ImageDrawer

addFilters

public void addFilters(Statistics stats,
                       List<RasterFilter> filters)
                throws FilterTypeException

Description copied from interface: ImageDrawer

Adds a list of filters

Specified by:

addFilters in interface ImageDrawer

Throws:

FilterTypeException

addEnhanced

public Buffer addEnhanced(Statistics stats)

Description copied from interface: ImageDrawer

Adds a enhanced filter to the buffer

Specified by:

addEnhanced in interface ImageDrawer

Returns:

addEnhanced

public Buffer addEnhanced(Statistics stats,
                          boolean tailTrim,
                          double tailTrimValue)

Description copied from interface: ImageDrawer

Adds a enhanced filter to the buffer

Specified by:

addEnhanced in interface ImageDrawer

Returns:

finalize

protected void finalize()
                 throws Throwable

Overrides:

finalize in class Object

Throws:

Throwable