/*
* This file is part of JGrasstools (http://www.jgrasstools.org)
* (C) HydroloGIS - www.hydrologis.com
*
* JGrasstools is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.jgrasstools.gears.modules.v.vectorize;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOINTSVECTORIZER_AUTHORCONTACTS;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOINTSVECTORIZER_AUTHORNAMES;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOINTSVECTORIZER_DESCRIPTION;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOINTSVECTORIZER_DOCUMENTATION;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOINTSVECTORIZER_KEYWORDS;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOINTSVECTORIZER_LABEL;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOINTSVECTORIZER_LICENSE;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOINTSVECTORIZER_NAME;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOINTSVECTORIZER_STATUS;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOINTSVECTORIZER_F_DEFAULT_DESCRIPTION;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOINTSVECTORIZER_IN_RASTER_DESCRIPTION;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOINTSVECTORIZER_OUT_VECTOR_DESCRIPTION;
import static org.jgrasstools.gears.libs.modules.JGTConstants.isNovalue;
import static org.jgrasstools.gears.utils.coverage.CoverageUtilities.getRegionParamsFromGridCoverage;
import javax.media.jai.iterator.RandomIter;
import javax.media.jai.iterator.RandomIterFactory;
import oms3.annotations.Author;
import oms3.annotations.Description;
import oms3.annotations.Documentation;
import oms3.annotations.Execute;
import oms3.annotations.In;
import oms3.annotations.Keywords;
import oms3.annotations.Label;
import oms3.annotations.License;
import oms3.annotations.Name;
import oms3.annotations.Out;
import oms3.annotations.Status;
import org.geotools.coverage.grid.GridCoordinates2D;
import org.geotools.coverage.grid.GridCoverage2D;
import org.geotools.coverage.grid.GridGeometry2D;
import org.geotools.data.simple.SimpleFeatureCollection;
import org.geotools.feature.DefaultFeatureCollection;
import org.geotools.feature.simple.SimpleFeatureBuilder;
import org.geotools.feature.simple.SimpleFeatureTypeBuilder;
import org.jgrasstools.gears.libs.modules.JGTModel;
import org.jgrasstools.gears.utils.RegionMap;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.simple.SimpleFeatureType;
import org.opengis.geometry.DirectPosition;
import com.vividsolutions.jts.geom.Coordinate;
import com.vividsolutions.jts.geom.GeometryFactory;
import com.vividsolutions.jts.geom.Point;
@Description(OMSPOINTSVECTORIZER_DESCRIPTION)
@Documentation(OMSPOINTSVECTORIZER_DOCUMENTATION)
@Author(name = OMSPOINTSVECTORIZER_AUTHORNAMES, contact = OMSPOINTSVECTORIZER_AUTHORCONTACTS)
@Keywords(OMSPOINTSVECTORIZER_KEYWORDS)
@Label(OMSPOINTSVECTORIZER_LABEL)
@Name(OMSPOINTSVECTORIZER_NAME)
@Status(OMSPOINTSVECTORIZER_STATUS)
@License(OMSPOINTSVECTORIZER_LICENSE)
public class OmsPointsVectorizer extends JGTModel {
@Description(OMSPOINTSVECTORIZER_IN_RASTER_DESCRIPTION)
@In
public GridCoverage2D inRaster;
@Description(OMSPOINTSVECTORIZER_F_DEFAULT_DESCRIPTION)
@In
public String fDefault = "value";
@Description(OMSPOINTSVECTORIZER_OUT_VECTOR_DESCRIPTION)
@Out
public SimpleFeatureCollection outVector = null;
@Execute
public void process() throws Exception {
if (!concatOr(outVector == null, doReset)) {
return;
}
checkNull(inRaster);
GridGeometry2D gridGeometry = inRaster.getGridGeometry();
RegionMap regionMap = getRegionParamsFromGridCoverage(inRaster);
int cols = regionMap.getCols();
int rows = regionMap.getRows();
SimpleFeatureTypeBuilder b = new SimpleFeatureTypeBuilder();
b.setName("pointtype");
b.setCRS(inRaster.getCoordinateReferenceSystem());
b.add("the_geom", Point.class);
b.add(fDefault, Double.class);
SimpleFeatureType type = b.buildFeatureType();
GeometryFactory gF = new GeometryFactory();
outVector = new DefaultFeatureCollection();
RandomIter rasterIter = RandomIterFactory.create(inRaster.getRenderedImage(), null);
pm.beginTask("Extracting points...", rows);
for( int r = 0; r < rows; r++ ) {
for( int c = 0; c < cols; c++ ) {
double value = rasterIter.getSampleDouble(c, r, 0);
if (isNovalue(value)) {
continue;
}
DirectPosition world = gridGeometry.gridToWorld(new GridCoordinates2D(c, r));
double[] coordinate = world.getCoordinate();
Coordinate coord = new Coordinate(coordinate[0], coordinate[1]);
Point point = gF.createPoint(coord);
SimpleFeatureBuilder builder = new SimpleFeatureBuilder(type);
Object[] values = new Object[]{point, value};
builder.addAll(values);
SimpleFeature feature = builder.buildFeature(null);
((DefaultFeatureCollection) outVector).add(feature);
}
}
}
}