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 / LinePlacementAtBest.java @ 40911
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1 | 40911 | jldominguez | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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2 | *
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3 | * Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.
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4 | *
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5 | * This program is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU General Public License
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7 | * as published by the Free Software Foundation; either version 2
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8 | * of the License, or (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program; if not, write to the Free Software
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17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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18 | *
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19 | * For more information, contact:
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20 | *
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21 | * Generalitat Valenciana
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22 | * Conselleria d'Infraestructures i Transport
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23 | * Av. Blasco Ib??ez, 50
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24 | * 46010 VALENCIA
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25 | * SPAIN
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26 | *
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27 | * +34 963862235
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28 | * gvsig@gva.es
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29 | * www.gvsig.gva.es
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30 | *
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31 | * or
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32 | *
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33 | * IVER T.I. S.A
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34 | * Salamanca 50
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35 | * 46005 Valencia
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36 | * Spain
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37 | *
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38 | * +34 963163400
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39 | * dac@iver.es
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40 | */
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41 | package org.gvsig.labeling.placements; |
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42 | |||
43 | import java.util.ArrayList; |
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44 | |||
45 | import org.gvsig.fmap.geom.Geometry; |
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46 | import org.gvsig.fmap.geom.Geometry.TYPES; |
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47 | import org.gvsig.fmap.geom.GeometryLocator; |
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48 | import org.gvsig.fmap.geom.type.GeometryType; |
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49 | import org.gvsig.fmap.mapcontext.ViewPort; |
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50 | import org.gvsig.fmap.mapcontext.rendering.legend.styling.ILabelClass; |
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51 | import org.gvsig.fmap.mapcontext.rendering.legend.styling.IPlacementConstraints; |
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52 | import org.gvsig.symbology.fmap.mapcontext.rendering.legend.styling.LabelLocationMetrics; |
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53 | import org.gvsig.tools.task.Cancellable; |
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54 | import org.slf4j.Logger; |
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55 | import org.slf4j.LoggerFactory; |
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56 | |||
57 | /**
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58 | *
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59 | * LinePlacementAtBest.java
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60 | *
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61 | *
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62 | * @author jaume dominguez faus - jaume.dominguez@iver.es Dec 17, 2007
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63 | *
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64 | */
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65 | public class LinePlacementAtBest extends CompoundLabelPlacement { |
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66 | |||
67 | private static Logger logger = LoggerFactory.getLogger(LinePlacementAtBest.class); |
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68 | static private ILabelPlacement[] pl = new ILabelPlacement[] { |
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69 | new LinePlacementInTheMiddle(),
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70 | new LinePlacementAtExtremities()
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71 | }; |
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72 | |||
73 | public LinePlacementAtBest() {
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74 | super(pl);
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75 | // a patch just to keep in mind the end of the lines
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76 | } |
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77 | |||
78 | |||
79 | public ArrayList<LabelLocationMetrics> guess(ILabelClass lc, |
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80 | Geometry geom, IPlacementConstraints constraints, |
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81 | double cartographicSymbolSize, Cancellable cancel, ViewPort vp) {
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82 | |||
83 | if (cancel.isCanceled()) return CannotPlaceLabel.NO_PLACES; |
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84 | |||
85 | ArrayList<LabelLocationMetrics> llc = super.guess(lc, geom, constraints, cartographicSymbolSize, cancel,vp); |
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86 | if (constraints instanceof AbstractPlacementConstraints) { |
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87 | AbstractPlacementConstraints clone; |
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88 | try {
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89 | clone = (AbstractPlacementConstraints) ((AbstractPlacementConstraints) constraints).clone(); |
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90 | clone.setLocationAlongTheLine(IPlacementConstraints.AT_THE_END_OF_THE_LINE); |
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91 | llc.addAll(pl[1].guess(lc, geom, clone, cartographicSymbolSize, cancel,vp));
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92 | } catch (CloneNotSupportedException e) { |
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93 | // this should never happen but
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94 | // anyway a warning does not hurt anyone
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95 | logger.info("Couldn't clone "+constraints.getClass().getName(), e);
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96 | } |
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97 | |||
98 | } |
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99 | return llc;
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100 | } |
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101 | public boolean isSuitableFor( |
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102 | IPlacementConstraints placementConstraints, |
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103 | int shapeType) {
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104 | |||
105 | GeometryType gt = null;
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106 | |||
107 | try {
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108 | gt = GeometryLocator.getGeometryManager().getGeometryType( |
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109 | shapeType, Geometry.SUBTYPES.GEOM2D); |
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110 | } catch (Exception e) { |
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111 | logger.error("While getting aux geo type.", e);
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112 | } |
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113 | |||
114 | if (gt.isTypeOf(TYPES.CURVE)
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115 | || shapeType == TYPES.MULTICURVE) { |
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116 | return placementConstraints != null && placementConstraints.isAtBestOfLine(); |
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117 | } else {
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118 | return false; |
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119 | } |
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120 | } |
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121 | |||
122 | |||
123 | } |