svn-gvsig-desktop / branches / v2_0_0_prep / extensions / extRasterTools-SE / src / org / gvsig / rastertools / vectorizacion / process / ContourLinesProcess.java @ 28155
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*/
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package org.gvsig.rastertools.vectorizacion.process; |
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import java.io.File; |
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import java.sql.Types; |
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import org.gvsig.fmap.crs.CRSFactory; |
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import org.gvsig.fmap.dal.DALLocator; |
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import org.gvsig.fmap.dal.DataManager; |
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import org.gvsig.fmap.dal.DataTypes; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.exception.ValidateDataParametersException; |
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import org.gvsig.fmap.dal.feature.EditableFeature; |
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import org.gvsig.fmap.dal.feature.EditableFeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.EditableFeatureType; |
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import org.gvsig.fmap.dal.feature.FeatureStore; |
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import org.gvsig.fmap.dal.feature.NewFeatureStoreParameters; |
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import org.gvsig.fmap.dal.feature.impl.DefaultEditableFeatureType; |
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import org.gvsig.fmap.dal.serverexplorer.filesystem.FilesystemServerExplorer; |
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import org.gvsig.fmap.dal.serverexplorer.filesystem.FilesystemServerExplorerParameters; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.fmap.geom.GeometryLocator; |
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import org.gvsig.fmap.geom.GeometryManager; |
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import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
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import org.gvsig.fmap.geom.exception.CreateGeometryException; |
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import org.gvsig.fmap.geom.primitive.GeneralPathX; |
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import org.gvsig.fmap.raster.layers.FLyrRasterSE; |
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import org.gvsig.raster.RasterProcess; |
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import org.gvsig.raster.buffer.RasterBufferInvalidException; |
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import org.gvsig.raster.datastruct.Extent; |
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import org.gvsig.raster.grid.Grid; |
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import org.gvsig.raster.grid.GridException; |
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import org.gvsig.raster.grid.GridExtent; |
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import org.gvsig.raster.process.RasterTask; |
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import org.gvsig.raster.process.RasterTaskQueue; |
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import org.gvsig.raster.util.RasterToolsUtil; |
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/**
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* Este proceso vectoriza la capa de entrada que debe estar ya preprocesada.
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* 03/07/2008
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* @author Victor Olaya (volaya@ya.com)
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* @author Nacho Brodin nachobrodin@gmail.com
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*/
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public class ContourLinesProcess extends RasterProcess { |
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private static final GeometryManager geomManager = GeometryLocator.getGeometryManager(); |
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private FLyrRasterSE lyr = null; |
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private double min = 0; |
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private double max = 0; |
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private double distance = 0; |
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private Extent extent = null; |
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private String fileName = null; |
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private char[][] m_Row = null; |
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private char[][] m_Col = null; |
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private Grid grid = null; |
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private FeatureStore fsWriter = null; |
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private int m_iGeometry = 0; |
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private double percent = 0; |
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private class NextContourInfo { |
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public int iDir; |
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public int x; |
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public int y; |
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public boolean doRow; |
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} |
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/**
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* Par?metros obligatorios al proceso:
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* <UL>
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* <LI></LI>
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* <LI>filename: Nombre del fichero de salida</LI>
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* <LI></LI>
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* <LI></LI>
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* <LI></LI>
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* <LI></LI>
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* </UL>
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*/
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public void init() { |
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lyr = getLayerParam("layer");
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fileName = getStringParam("filename");
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min = getDoubleParam("min");
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max = getDoubleParam("max");
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distance = getDoubleParam("distance");
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extent = getExtentParam("extent");
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try{
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EditableFeatureType featureType = getFeatureType(); |
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EditableFeatureAttributeDescriptor efad = featureType.add("GEOMETRY", DataTypes.GEOMETRY);
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efad.setGeometryType(Geometry.TYPES.CURVE); |
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efad.setSRS(CRSFactory.getCRS("EPSG:23030"));
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featureType.setDefaultGeometryAttributeName("GEOMETRY");
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DataManager datamanager = DALLocator.getDataManager(); |
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FilesystemServerExplorerParameters explorerParams; |
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explorerParams = (FilesystemServerExplorerParameters) datamanager.createServerExplorerParameters(FilesystemServerExplorer.NAME); |
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explorerParams.setRoot(new File(fileName).getParent()); |
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FilesystemServerExplorer explorer = (FilesystemServerExplorer) datamanager.createServerExplorer(explorerParams); |
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NewFeatureStoreParameters newParams = (NewFeatureStoreParameters) explorer.getAddParameters(new File(fileName)); |
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newParams.setDefaultFeatureType(featureType); |
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newParams.setDynValue("srs", CRSFactory.getCRS("EPSG:23030")); |
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explorer.add(newParams, true);
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DataManager manager = DALLocator.getDataManager(); |
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fsWriter = (FeatureStore)manager.createStore(newParams); |
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fsWriter.edit(FeatureStore.MODE_APPEND); |
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} catch (DataException e) {
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RasterToolsUtil.messageBoxError("error_loading_store", this, e); |
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} catch (ValidateDataParametersException e) {
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RasterToolsUtil.messageBoxError("error_loading_store", this, e); |
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} |
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} |
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/**
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* Tarea de recorte
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*/
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public void process() throws InterruptedException { |
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GridExtent ge = null;
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insertLineLog("Contour Lines");
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if(extent != null) |
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ge = new GridExtent(extent, lyr.getCellSize());
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try {
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grid = new Grid(lyr.getDataSource(), new int[]{0}, ge); |
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if( min <= max && distance > 0 ) { |
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if( min < grid.getMinValue() )
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min += distance * (int)((grid.getMinValue() - min) / distance);
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if( max > grid.getMaxValue() )
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max = grid.getMaxValue(); |
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createContours(min, max, distance); |
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fsWriter.finishEditing(); |
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} |
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} catch (RasterBufferInvalidException e) {
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RasterToolsUtil.messageBoxError("error_loading_grid", this, e); |
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} catch (GridException e) {
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RasterToolsUtil.messageBoxError("error_loading_grid", this, e); |
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} catch (DataException e) {
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RasterToolsUtil.messageBoxError("", this, e); |
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} catch (CreateGeometryException e) {
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RasterToolsUtil.messageBoxError("", this, e); |
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} finally {
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if (incrementableTask != null) { |
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incrementableTask.processFinalize(); |
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incrementableTask = null;
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} |
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} |
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if(externalActions != null) |
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externalActions.end(fileName); |
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} |
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private void createContours(double dMin, double dMax, double dDistance) throws InterruptedException, GridException, DataException, CreateGeometryException { |
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int x, y;
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int i;
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int ID;
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int iNX,iNY;
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double dZ;
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double dValue = 0; |
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RasterTask task = RasterTaskQueue.get(Thread.currentThread().toString());
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iNX = grid.getNX(); |
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iNY = grid.getNY(); |
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m_Row = new char[iNY][iNX]; |
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m_Col = new char[iNY][iNX]; |
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if( dDistance <= 0 ) |
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dDistance= 1;
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percent = 0;
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for(dZ = dMin, ID = 0; dZ <= dMax; dZ += dDistance) { |
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double increment = (25 / (iNY * (((dMax - dMin) / dDistance) + 1))); |
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for(y = 0; y < iNY - 1; y++) { |
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percent += increment; |
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for(x = 0; x < iNX - 1; x++) { |
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dValue = grid.getCellValue(y, x); |
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if( dValue >= dZ ) {
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m_Row[y][x] = (char) (grid.getCellValue(y, x + 1) < dZ ? 1 : 0); |
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m_Col[y][x] = (char) (grid.getCellValue(y + 1, x) < dZ ? 1 : 0); |
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} |
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else {
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m_Row[y][x] = (char) (grid.getCellValue(y, x + 1) >= dZ ? 1 : 0); |
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m_Col[y][x] = (char) (grid.getCellValue(y + 1, x) >= dZ ? 1 : 0); |
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} |
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} |
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if(task.getEvent() != null) |
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task.manageEvent(task.getEvent()); |
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} |
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increment = (75 / (iNY * (((dMax - dMin) / dDistance) + 1))); |
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for(y = 0; y < iNY - 1; y++) { |
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percent += increment; |
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for(x = 0; x < iNX - 1; x++) { |
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if(m_Row[y][x] != 0) { |
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for(i = 0; i < 2; i++) |
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findContour(x, y, dZ, true, ID++);
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m_Row[y][x] = 0;
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} |
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if(m_Col[y][x] != 0) { |
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for(i=0; i<2; i++) |
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findContour(x, y, dZ, false, ID++);
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m_Col[y][x] = 0;
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} |
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} |
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if(task.getEvent() != null) |
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task.manageEvent(task.getEvent()); |
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} |
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} |
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} |
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private void findContour(int x, int y, double z, boolean doRow, int ID) throws GridException, InterruptedException, DataException, CreateGeometryException { |
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boolean doContinue = true; |
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boolean bIsFirstPoint = true; |
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int zx = doRow ? x + 1 : x; |
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int zy = doRow ? y : y + 1; |
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double d = 0; |
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double xPos, yPos;
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double xMin = grid.getGridExtent().getMin().getX();
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double yMax = grid.getGridExtent().getMax().getY();
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Geometry line; |
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Object values[] = new Object[2]; |
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NextContourInfo info = new NextContourInfo();
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GeneralPathX genPathX = new GeneralPathX();
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info.x = x; |
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info.y = y; |
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info.iDir = 0;
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info.doRow = doRow; |
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do{
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d = grid.getCellValue(info.y, info.x); |
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d = (d - z) / (d - grid.getCellValue(zy, zx)); |
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xPos = xMin + grid.getCellSize() * (info.x + d * (zx - info.x) + 0.5);
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yPos = yMax - grid.getCellSize() * (info.y + d * (zy - info.y) + 0.5);
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if (bIsFirstPoint) {
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genPathX.moveTo(xPos, yPos); |
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bIsFirstPoint = false;
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} else
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genPathX.lineTo(xPos, yPos); |
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if( !findNextContour(info) )
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doContinue = findNextContour(info); |
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info.iDir = (info.iDir + 5) % 8; |
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if(info.doRow) {
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m_Row[info.y][info.x] = 0;
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zx = info.x + 1;
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zy = info.y; |
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} else {
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m_Col[info.y][info.x] = 0;
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zx = info.x; |
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zy = info.y + 1;
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} |
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} |
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while(doContinue);
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values[0] = new Double(ID); |
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values[1] = new Double(z); |
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line = geomManager.createCurve(genPathX, SUBTYPES.GEOM2D); |
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addGeometry(line, values); |
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} |
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private boolean findNextContour(NextContourInfo info) { |
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boolean doContinue;
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if(info.doRow)
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switch(info.iDir) {
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case 0: |
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if(m_Row[info.y + 1][info.x] != 0) { |
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info.y++; |
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info.iDir = 0;
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doContinue = true;
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break;
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} |
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case 1: |
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if(m_Col[info.y][info.x + 1] != 0) { |
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info.x++; |
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info.iDir = 1;
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info.doRow = false;
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doContinue = true;
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break;
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} |
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case 2: |
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case 3: |
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if(info.y-1 >= 0) |
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if(m_Col[info.y - 1][info.x + 1] != 0) { |
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info.x++; |
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info.y--; |
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info.doRow = false;
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info.iDir = 3;
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doContinue = true;
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break;
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} |
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case 4: |
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if(info.y-1>=0) |
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if(m_Row[info.y - 1][info.x]!= 0) { |
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info.y--; |
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info.iDir = 4;
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doContinue = true;
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break;
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} |
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case 5: |
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if(info.y-1>=0) |
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if(m_Col[info.y - 1][info.x] != 0) { |
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info.y--; |
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info.doRow = false;
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info.iDir = 5 ;
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doContinue = true;
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break;
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} |
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case 6: |
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case 7: |
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if(m_Col[info.y][info.x]!= 0) { |
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info.doRow = false;
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info.iDir = 7;
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doContinue = true;
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break;
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} |
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default:
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info.iDir = 0;
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doContinue = false;
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} |
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else
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switch(info.iDir) {
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case 0: |
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case 1: |
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if(m_Row[info.y + 1][info.x] != 0) { |
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info.y++; |
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info.doRow = true;
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info.iDir = 1;
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doContinue = true;
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break;
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} |
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case 2: |
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if(m_Col[info.y][info.x + 1] != 0) { |
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info.x++; |
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info.iDir = 2;
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doContinue = true;
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break;
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} |
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case 3: |
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if(m_Row[info.y][info.x] != 0) { |
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info.doRow = true;
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info.iDir = 3;
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doContinue = true;
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break;
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} |
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case 4: |
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case 5: |
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if(info.x-1>=0) |
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if(m_Row[info.y][info.x - 1] != 0) { |
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info.x--; |
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info.doRow = true;
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info.iDir = 5;
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doContinue = true;
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break;
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} |
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case 6: |
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if(info.x-1>=0) |
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if(m_Col[info.y][info.x - 1] != 0) { |
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info.x--; |
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info.iDir = 6;
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doContinue = true;
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break;
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} |
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case 7: |
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if(info.x-1 >= 0) |
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if(m_Row[info.y + 1][info.x - 1] != 0) { |
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info.x--; |
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info.y++; |
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info.doRow = true;
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info.iDir = 7;
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doContinue = true;
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break;
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} |
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default:
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info.iDir = 0;
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doContinue = false;
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} |
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return(doContinue);
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.gui.beans.incrementabletask.IIncrementable#getPercent()
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*/
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public int getPercent() { |
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return (int)percent; |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.gui.beans.incrementabletask.IIncrementable#getTitle()
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*/
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public String getTitle() { |
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return RasterToolsUtil.getText(this, "vectorization"); |
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} |
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// public void addShape(FShape shape, Value[] value) throws Exception {
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// if (shape == null)
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// return;
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// IGeometry geom = ShapeFactory.createGeometry(shape);
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// addGeometry(geom, value);
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// }
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public void addGeometry(Geometry geom, Object[] value) throws DataException { |
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m_iGeometry++; |
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EditableFeature ef = fsWriter.createNewFeature(); |
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ef.set("ID", value[0]); |
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ef.set("NAME", value[1]); |
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ef.setGeometry("GEOMETRY", geom);
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fsWriter.insert(ef); |
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} |
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private EditableFeatureType getFeatureType(){
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EditableFeatureType eft=new DefaultEditableFeatureType();
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EditableFeatureAttributeDescriptor efad1=eft.add("ID", DataTypes.DOUBLE);
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efad1.setPrecision(5);
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EditableFeatureAttributeDescriptor efad2=eft.add("NAME", DataTypes.DOUBLE);
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efad2.setPrecision(5);
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return eft;
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} |
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/**
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* Returns the length of field
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* @param dataType
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* @return length of field
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*/
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public int getDataTypeLength(int dataType) { |
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switch (dataType) {
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case Types.NUMERIC: |
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case Types.DOUBLE: |
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case Types.REAL: |
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case Types.FLOAT: |
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case Types.BIGINT: |
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case Types.INTEGER: |
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case Types.DECIMAL: |
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return 20; |
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case Types.CHAR: |
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case Types.VARCHAR: |
| 469 |
case Types.LONGVARCHAR: |
| 470 |
return 254; |
| 471 |
case Types.DATE: |
| 472 |
return 8; |
| 473 |
case Types.BOOLEAN: |
| 474 |
case Types.BIT: |
| 475 |
return 1; |
| 476 |
} |
| 477 |
return 0; |
| 478 |
} |
| 479 |
} |