Package org.openjump.core.rasterimage.algorithms

Class RasterizeAlgorithm

java.lang.Object

org.openjump.core.rasterimage.algorithms.RasterizeAlgorithm

public class RasterizeAlgorithm
extends Object

Author:

Giuseppe Aruta a class to port two methods to rasterize a FeatureCollection - from Sextante (https://joinup.ec.europa.eu/solution/sextante/about) - from AdbToolbox (http://www.pcn.minambiente.it/mattm/adb-toolbox/)

Constructor Summary

Constructors

Constructor	Description
RasterizeAlgorithm(org.locationtech.jts.geom.Envelope limitEnvelope, FeatureCollection fCollection, String attributeName, double CellSize)

Method Summary

Modifier and Type	Method	Description
org.locationtech.jts.geom.Envelope	getEnvelope()	gets Raster org.locationtech.jts.geom.Envelope, recalculated according to the cell size
WritableRaster	getRaster()	Gets java.awt.image.WritableRaster
void	process()	process a feature collection to create a raster according to a numeric attribute, a limit envelope and a cell size.
void	saveToFile(File file)	Method to save results to a TIFF file

Methods inherited from class java.lang.Object

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

Constructor Detail

RasterizeAlgorithm

public RasterizeAlgorithm(org.locationtech.jts.geom.Envelope limitEnvelope,
                          FeatureCollection fCollection,
                          String attributeName,
                          double CellSize)
                   throws OutOfMemoryError,
                          Exception

Throws:

OutOfMemoryError

Exception

Method Detail

process

public void process()
             throws OutOfMemoryError,
                    Exception

process a feature collection to create a raster according to a numeric attribute, a limit envelope and a cell size. Feature are first chosen according if they overlap the limit envelope. Then they are merged according the chosen attribute, then converted to a grid Methods saveToFile(File) and getRaster() and getEnvelope() allows to save to file or to get raster and envelope for further manipulations

Throws:

OutOfMemoryError

Exception

saveToFile

public void saveToFile(File file)
                throws IOException

Method to save results to a TIFF file

Parameters:

file - destination File

Throws:

IOException - if an IOException occurs

getRaster

public WritableRaster getRaster()

Gets java.awt.image.WritableRaster

Returns:

java.awt.image.WritableRaster

getEnvelope

public org.locationtech.jts.geom.Envelope getEnvelope()

gets Raster org.locationtech.jts.geom.Envelope, recalculated according to the cell size

Returns:

org.locationtech.jts.geom.Envelope