svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.plugin / org.gvsig.labeling.app / org.gvsig.labeling.app.mainplugin / src / main / java / org / gvsig / labeling / placements / MarkerCenteredAtPoint.java @ 43510
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1 | 43510 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | 40911 | jldominguez | *
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4 | 43510 | jjdelcerro | * Copyright (C) 2007-2013 gvSIG Association.
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5 | 40911 | jldominguez | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | 43510 | jjdelcerro | * as published by the Free Software Foundation; either version 3
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9 | 40911 | jldominguez | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | 43510 | jjdelcerro | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | 40911 | jldominguez | *
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21 | 43510 | jjdelcerro | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | 40911 | jldominguez | */
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24 | package org.gvsig.labeling.placements; |
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25 | |||
26 | import java.awt.geom.Point2D; |
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27 | import java.awt.geom.Rectangle2D; |
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28 | import java.util.ArrayList; |
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29 | |||
30 | import org.gvsig.fmap.geom.Geometry; |
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31 | import org.gvsig.fmap.geom.primitive.Point; |
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32 | import org.gvsig.fmap.mapcontext.ViewPort; |
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33 | import org.gvsig.fmap.mapcontext.rendering.legend.styling.ILabelClass; |
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34 | import org.gvsig.fmap.mapcontext.rendering.legend.styling.IPlacementConstraints; |
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35 | import org.gvsig.symbology.fmap.mapcontext.rendering.legend.styling.LabelLocationMetrics; |
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36 | import org.gvsig.tools.task.Cancellable; |
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37 | import org.slf4j.Logger; |
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38 | import org.slf4j.LoggerFactory; |
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39 | |||
40 | public class MarkerCenteredAtPoint implements ILabelPlacement { |
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41 | |||
42 | private static Logger logger = |
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43 | LoggerFactory.getLogger(MarkerCenteredAtPoint.class); |
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44 | |||
45 | 43510 | jjdelcerro | @Override
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46 | 40911 | jldominguez | public ArrayList<LabelLocationMetrics> guess( |
47 | ILabelClass lc, Geometry geom, |
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48 | IPlacementConstraints placementConstraints, |
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49 | double cartographicSymbolSize, Cancellable cancel, ViewPort vp) {
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50 | |||
51 | 43510 | jjdelcerro | if (cancel.isCanceled()) {
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52 | return CannotPlaceLabel.NO_PLACES;
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53 | } |
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54 | 40911 | jldominguez | |
55 | Geometry shp = geom.cloneGeometry(); |
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56 | shp.transform(vp.getAffineTransform()); |
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57 | |||
58 | ArrayList<LabelLocationMetrics> guessed =
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59 | new ArrayList<LabelLocationMetrics>(); |
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60 | |||
61 | Point cen = null; |
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62 | try {
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63 | cen = shp.centroid(); |
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64 | } catch (Exception e) { |
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65 | 43510 | jjdelcerro | logger.warn("While gentting centroid.", e);
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66 | 40911 | jldominguez | } |
67 | Point2D p = new Point2D.Double(cen.getX(), cen.getY()); |
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68 | |||
69 | Rectangle2D bounds = lc.getBounds();
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70 | p.setLocation(p.getX() - (bounds.getWidth()*0.5), p.getY() - bounds.getHeight()*0.5); |
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71 | guessed.add(new LabelLocationMetrics(
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72 | p, 0, true)); |
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73 | return guessed;
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74 | } |
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75 | |||
76 | 43510 | jjdelcerro | @Override
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77 | 40911 | jldominguez | public boolean isSuitableFor(IPlacementConstraints placementConstraints, |
78 | int shapeType) {
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79 | return false; |
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80 | } |
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81 | |||
82 | |||
83 | |||
84 | } |