org.jgrasstools.gears.modules.v.smoothing.OmsPolygonSmootherJaitools Maven / Gradle / Ivy
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/*
* 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 .
*/
package org.jgrasstools.gears.modules.v.smoothing;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOLYGONSMOOTHERJAITOOLS_AUTHORCONTACTS;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOLYGONSMOOTHERJAITOOLS_AUTHORNAMES;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOLYGONSMOOTHERJAITOOLS_DESCRIPTION;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOLYGONSMOOTHERJAITOOLS_KEYWORDS;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOLYGONSMOOTHERJAITOOLS_LABEL;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOLYGONSMOOTHERJAITOOLS_LICENSE;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOLYGONSMOOTHERJAITOOLS_NAME;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOLYGONSMOOTHERJAITOOLS_STATUS;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOLYGONSMOOTHERJAITOOLS_IN_VECTOR_DESCRIPTION;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOLYGONSMOOTHERJAITOOLS_OUT_VECTOR_DESCRIPTION;
import static org.jgrasstools.gears.i18n.GearsMessages.OMSPOLYGONSMOOTHERJAITOOLS_P_ALPHA_DESCRIPTION;
import java.util.ArrayList;
import java.util.List;
import oms3.annotations.Author;
import oms3.annotations.Description;
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.data.simple.SimpleFeatureCollection;
import org.geotools.feature.DefaultFeatureCollection;
import org.jaitools.jts.PolygonSmoother;
import org.jgrasstools.gears.libs.modules.JGTModel;
import org.jgrasstools.gears.utils.features.FeatureGeometrySubstitutor;
import org.jgrasstools.gears.utils.features.FeatureUtilities;
import org.jgrasstools.gears.utils.geometry.GeometryUtilities;
import org.opengis.feature.simple.SimpleFeature;
import com.vividsolutions.jts.geom.Geometry;
import com.vividsolutions.jts.geom.GeometryFactory;
import com.vividsolutions.jts.geom.MultiPolygon;
import com.vividsolutions.jts.geom.Polygon;
@Description(OMSPOLYGONSMOOTHERJAITOOLS_DESCRIPTION)
@Author(name = OMSPOLYGONSMOOTHERJAITOOLS_AUTHORNAMES, contact = OMSPOLYGONSMOOTHERJAITOOLS_AUTHORCONTACTS)
@Keywords(OMSPOLYGONSMOOTHERJAITOOLS_KEYWORDS)
@Label(OMSPOLYGONSMOOTHERJAITOOLS_LABEL)
@Name(OMSPOLYGONSMOOTHERJAITOOLS_NAME)
@Status(OMSPOLYGONSMOOTHERJAITOOLS_STATUS)
@License(OMSPOLYGONSMOOTHERJAITOOLS_LICENSE)
public class OmsPolygonSmootherJaitools extends JGTModel {
@Description(OMSPOLYGONSMOOTHERJAITOOLS_IN_VECTOR_DESCRIPTION)
@In
public SimpleFeatureCollection inVector;
@Description(OMSPOLYGONSMOOTHERJAITOOLS_P_ALPHA_DESCRIPTION)
@In
public double pAlpha = 0;
@Description(OMSPOLYGONSMOOTHERJAITOOLS_OUT_VECTOR_DESCRIPTION)
@Out
public SimpleFeatureCollection outVector;
private GeometryFactory gF = GeometryUtilities.gf();
@Execute
public void process() throws Exception {
if (!concatOr(outVector == null, doReset)) {
return;
}
outVector = new DefaultFeatureCollection();
pm.message("Collecting geometries...");
List polygonsList = FeatureUtilities.featureCollectionToList(inVector);
int size = inVector.size();
FeatureGeometrySubstitutor fGS = new FeatureGeometrySubstitutor(inVector.getSchema());
pm.beginTask("Smoothing features...", size);
PolygonSmoother smoother = new PolygonSmoother(gF);
for( SimpleFeature polygonsFeature : polygonsList ) {
Geometry geometry = (Geometry) polygonsFeature.getDefaultGeometry();
int numGeometries = geometry.getNumGeometries();
List smoothedList = new ArrayList();
for( int i = 0; i < numGeometries; i++ ) {
Geometry geometryN = geometry.getGeometryN(i);
if (geometryN instanceof Polygon) {
Polygon polygon = (Polygon) geometryN;
Polygon smoothed = smoother.smooth(polygon, pAlpha);
smoothedList.add(smoothed);
}
}
if (smoothedList.size() != 0) {
Polygon[] lsArray = (Polygon[]) smoothedList.toArray(new Polygon[smoothedList.size()]);
MultiPolygon multiPolygonString = gF.createMultiPolygon(lsArray);
SimpleFeature newFeature = fGS.substituteGeometry(polygonsFeature, multiPolygonString);
((DefaultFeatureCollection) outVector).add(newFeature);
}
pm.worked(1);
}
pm.done();
}
}