Package org.openjump.core.rasterimage.algorithms

Class VectorizeAlgorithm

java.lang.Object

org.openjump.core.rasterimage.algorithms.VectorizeAlgorithm

public class VectorizeAlgorithm
extends Object

This class provides a complete set to transform a grid (GridWrapperNotInterpolated.class) derived from a RasterImageLayer.class into vector objetcs. All methods derived from AdbToolbox project, from Sextante and from OpenJUMP inner methods. To build a grid from RasterImageLayer: OpenJUMPSextanteRasterLayer rstLayer = new OpenJUMPSextanteRasterLayer(); rstLayer.create(rLayer, false); GridWrapperNotInterpolated gwrapper = new GridWrapperNotInterpolated(rstLayer, rstLayer.getLayerGridExtent());

Author:

Beppe

Field Summary

Fields

Modifier and Type	Field	Description
static WorkbenchFrame	frame

Constructor Summary

Constructors

Constructor	Description
VectorizeAlgorithm()

Method Summary

Modifier and Type	Method	Description
static void	main(String[] args)
FeatureCollection	toContours(GridWrapperNotInterpolated gwrapper, double zMin, double zMax, double dDistance, String attributeName, int band)	Convert a DTM raster to a feature collection of contours (linestrings) defining a GridWrapperNotInterpolated, a minimum and maximun elevations, a vertical distance between each contour, an attribute name and the band of the raster
FeatureCollection	toGridPoint(GridWrapperNotInterpolated gwrapper, int numBands)
FeatureCollection	toGridPolygon(GridWrapperNotInterpolated gwrapper, int maxCells, int numBands)
FeatureCollection	toLines(GridWrapperNotInterpolated gwrapper, String attributeName)	Convert a line raster a feature collection of linestrings defining a GridWrapperNotInterpolated and an attribute.
FeatureCollection	toPoint(GridWrapperNotInterpolated gwrapper, int band)
static FeatureCollection	toPolygons(GridWrapperNotInterpolated gwrapper, boolean explodeMultipolygons, String attributeName, int band)	Create a FeatureCollection of polygons defining a GridWrapperNotInterpolated and number of band Sextante algorithm - compatible with OpenKLEM methods
static FeatureCollection	toPolygonsAdbToolBox(GridWrapperNotInterpolated gwrapper, boolean explodeMultipolygons, String attributeName, int band)	Create a FeatureCollection of polygons defining a GridWrapperNotInterpolated and number of band AdbToolbox algorithm
static FeatureCollection	toPolygonsMikeToolBox(GridWrapperNotInterpolated gwrapper, boolean simplify, String attributeName, int band)
static FeatureCollection	toPolygonsSextante(GridWrapperNotInterpolated gwrapper, String attributeName, int band)	Create a FeatureCollection of polygons defining a GridWrapperNotInterpolated and number of band Sextante algorithm

Methods inherited from class java.lang.Object

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

Field Detail

frame

public static WorkbenchFrame frame

Constructor Detail

VectorizeAlgorithm

public VectorizeAlgorithm()

Method Detail

toPolygonsAdbToolBox

public static FeatureCollection toPolygonsAdbToolBox(GridWrapperNotInterpolated gwrapper,
                                                     boolean explodeMultipolygons,
                                                     String attributeName,
                                                     int band)

Create a FeatureCollection of polygons defining a GridWrapperNotInterpolated and number of band AdbToolbox algorithm

Parameters:

gwrapper - GridWrapperNotInterpolated

explodeMultipolygons - Explode MultiPolygons in Polygons

band - Number of band (0,1,2,etc)

Returns:

a FeatureCollection containing vectorized polygons

toPolygonsMikeToolBox

public static FeatureCollection toPolygonsMikeToolBox(GridWrapperNotInterpolated gwrapper,
                                                      boolean simplify,
                                                      String attributeName,
                                                      int band)

toPolygonsSextante

public static FeatureCollection toPolygonsSextante(GridWrapperNotInterpolated gwrapper,
                                                   String attributeName,
                                                   int band)

Create a FeatureCollection of polygons defining a GridWrapperNotInterpolated and number of band Sextante algorithm

Parameters:

gwrapper - a GridWrapperNotInterpolated

attributeName - an attribute name

band - the image band to use

Returns:

a FeatureCollection containing vectorized polygons

toContours

public FeatureCollection toContours(GridWrapperNotInterpolated gwrapper,
                                    double zMin,
                                    double zMax,
                                    double dDistance,
                                    String attributeName,
                                    int band)

Convert a DTM raster to a feature collection of contours (linestrings) defining a GridWrapperNotInterpolated, a minimum and maximun elevations, a vertical distance between each contour, an attribute name and the band of the raster

Parameters:

gwrapper - a GridWrapperNotInterpolated

zMin - minimum elevation

zMax - maximum elevation

dDistance - vertical distance between contour lines

attributeName - attribute name

band - the band containing elevation data

Returns:

a FeatureCollection containing vectorized contour lines

toLines

public FeatureCollection toLines(GridWrapperNotInterpolated gwrapper,
                                 String attributeName)

Convert a line raster a feature collection of linestrings defining a GridWrapperNotInterpolated and an attribute. [Currently not working possibly due to a bug of OpenJUMPSextanteRasterLayer.create method]

Parameters:

gwrapper - a GridWrapperNotInterpolated

attributeName - attribute name

Returns:

toGridPoint

public FeatureCollection toGridPoint(GridWrapperNotInterpolated gwrapper,
                                     int numBands)

toPoint

public FeatureCollection toPoint(GridWrapperNotInterpolated gwrapper,
                                 int band)

toGridPolygon

public FeatureCollection toGridPolygon(GridWrapperNotInterpolated gwrapper,
                                       int maxCells,
                                       int numBands)

toPolygons

public static FeatureCollection toPolygons(GridWrapperNotInterpolated gwrapper,
                                           boolean explodeMultipolygons,
                                           String attributeName,
                                           int band)

Create a FeatureCollection of polygons defining a GridWrapperNotInterpolated and number of band Sextante algorithm - compatible with OpenKLEM methods

Parameters:

gwrapper - a GridWrapperNotInterpolated

explodeMultipolygons - true to separate disjointed polygons

attributeName - an attribute name

band - the image band to use

Returns:

a FeatureCollection containing vectorized polygons

main

public static void main(String[] args)