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annotate artifacts/src/main/java/org/dive4elements/river/jfree/StripedAreaDatasetRenderer.java @ 9496:d8e753d0fdb9

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stripedArea introduced for Assessment Scheme/Bewertungsschema
author gernotbelger
date Wed, 26 Sep 2018 15:48:05 +0200
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9496
d8e753d0fdb9 stripedArea introduced for Assessment Scheme/Bewertungsschema
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1 /** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by
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3 * Björnsen Beratende Ingenieure GmbH
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4 * Dr. Schumacher Ingenieurbüro für Wasser und Umwelt
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5 *
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6 * This file is Free Software under the GNU AGPL (>=v3)
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7 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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8 * documentation coming with Dive4Elements River for details.
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9 */
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10 package org.dive4elements.river.jfree;
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11
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12 import java.awt.Graphics2D;
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13 import java.awt.Paint;
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14 import java.awt.Stroke;
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15 import java.awt.geom.GeneralPath;
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16 import java.awt.geom.Rectangle2D;
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17
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18 import org.dive4elements.river.jfree.StripedAreaDataset.Stripe;
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19 import org.jfree.chart.axis.ValueAxis;
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20 import org.jfree.chart.plot.CrosshairState;
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21 import org.jfree.chart.plot.PlotRenderingInfo;
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22 import org.jfree.chart.plot.XYPlot;
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23 import org.jfree.chart.renderer.xy.AbstractXYItemRenderer;
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24 import org.jfree.chart.renderer.xy.XYItemRendererState;
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25 import org.jfree.data.xy.XYDataset;
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26
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27 /**
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28 * @author Domenico Nardi Tironi
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29 */
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30 final class StripedAreaDatasetRenderer extends AbstractXYItemRenderer {
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31
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32 private static final long serialVersionUID = 1L;
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33
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34 @Override
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35 public void drawItem(final Graphics2D g2, final XYItemRendererState state, final Rectangle2D dataArea, final PlotRenderingInfo info, final XYPlot plot,
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36 final ValueAxis domainAxis, final ValueAxis rangeAxis, final XYDataset dataset, final int series, final int item,
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37 final CrosshairState crosshairState, final int pass) {
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38
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39 if (item != 0)
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40 return;
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41
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42 final StripedAreaDataset stripedDataset = (StripedAreaDataset) dataset;
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43 final Stripe stripe = stripedDataset.getStripe(series);
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44
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45 final double lower = stripe.getLower();
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46 final double upper = stripe.getUpper();
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47
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48 final double transLower = Double.isNaN(lower) ? dataArea.getMaxY() : rangeAxis.valueToJava2D(lower, dataArea, plot.getRangeAxisEdge());
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49 final double transUpper = Double.isNaN(upper) ? dataArea.getMinY() : rangeAxis.valueToJava2D(upper, dataArea, plot.getRangeAxisEdge());
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50
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51 final double transLeft = dataArea.getMinX();
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52 final double transRight = dataArea.getMaxX();
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53
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54 final GeneralPath area = new GeneralPath();
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55
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56 area.moveTo(transLeft, transLower);
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57 area.lineTo(transRight, transLower);
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58 area.lineTo(transRight, transUpper);
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59 area.lineTo(transLeft, transUpper);
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60 area.closePath();
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61
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62 final Paint paint = getItemPaint(series, item);
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63 final Stroke stroke = getItemStroke(series, item);
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64 g2.setPaint(paint);
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65 g2.setStroke(stroke);
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66
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67 g2.fill(area);
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68 }
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69 }
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