/*
* 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;
import java.util.List;
import org.geotools.coverage.grid.GridCoverage2D;
import org.geotools.data.simple.SimpleFeatureCollection;
import org.jgrasstools.gears.libs.modules.Variables;
import org.jgrasstools.gears.libs.monitor.DummyProgressMonitor;
import org.jgrasstools.gears.modules.r.summary.OmsZonalStats;
import org.jgrasstools.gears.utils.HMTestCase;
import org.jgrasstools.gears.utils.HMTestMaps;
import org.jgrasstools.gears.utils.RegionMap;
import org.jgrasstools.gears.utils.coverage.CoverageUtilities;
import org.jgrasstools.gears.utils.features.FeatureUtilities;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.referencing.crs.CoordinateReferenceSystem;
/**
* Test for the {@link OmsZonalStats}
*
* @author Andrea Antonello (www.hydrologis.com)
*/
public class TestZonalStats extends HMTestCase {
private CoordinateReferenceSystem crs = HMTestMaps.getCrs();
private RegionMap ep = HMTestMaps.getEnvelopeparams();
private GridCoverage2D flowCoverage;
private double[][] flowData;
private SimpleFeatureCollection testLeftFC;
@Override
protected void setUp() throws Exception {
super.setUp();
testLeftFC = HMTestMaps.getTestLeftFC();
flowData = HMTestMaps.flowData;
flowCoverage = CoverageUtilities.buildCoverage("flow", flowData, ep, crs, true);
}
@SuppressWarnings("nls")
public void testZonalStats() throws Exception {
OmsZonalStats zs = new OmsZonalStats();
zs.pm = new DummyProgressMonitor();
zs.inRaster = flowCoverage;
zs.inVector = testLeftFC;
zs.pPercentageThres = 0;
zs.process();
SimpleFeatureCollection outVector = zs.outVector;
List<SimpleFeature> testList = FeatureUtilities.featureCollectionToList(outVector);
assertEquals(testList.size(), 1);
SimpleFeature feature = testList.get(0);
Double max = (Double) feature.getAttribute(Variables.MAX);
assertEquals(7.0, max);
Double min = (Double) feature.getAttribute(Variables.MIN);
assertEquals(2.0, min);
Double avg = (Double) feature.getAttribute(Variables.AVG);
assertEquals(4.82608695, avg, DELTA);
Double var = (Double) feature.getAttribute(Variables.VAR);
assertEquals(1.7958412098, var, DELTA);
int activeCells = (Integer) feature.getAttribute(Variables.ACTCELLS);
assertEquals(23, activeCells);
int invalidCells = (Integer) feature.getAttribute(Variables.INVCELLS);
assertEquals(17, invalidCells);
}
}