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 / label / GeneralLabelingStrategy.java @ 43510
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package org.gvsig.labeling.label; |
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|
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import java.awt.Graphics2D; |
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import java.awt.geom.Point2D; |
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import java.awt.image.BufferedImage; |
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import java.util.ArrayList; |
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import java.util.Iterator; |
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import java.util.List; |
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import java.util.TreeMap; |
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import java.util.TreeSet; |
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import org.cresques.cts.ICoordTrans; |
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|
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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|
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import org.gvsig.compat.print.PrintAttributes; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.exception.ReadException; |
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import org.gvsig.fmap.dal.feature.Feature; |
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import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.FeatureSet; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
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import org.gvsig.fmap.geom.Geometry.TYPES; |
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import org.gvsig.fmap.geom.GeometryException; |
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import org.gvsig.fmap.geom.GeometryLocator; |
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import org.gvsig.fmap.geom.GeometryManager; |
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import org.gvsig.fmap.geom.aggregate.MultiPrimitive; |
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import org.gvsig.fmap.geom.operation.GeometryOperationException; |
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import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException; |
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import org.gvsig.fmap.geom.primitive.Envelope; |
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import org.gvsig.fmap.geom.primitive.Point; |
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import org.gvsig.fmap.geom.type.GeometryType; |
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import org.gvsig.fmap.mapcontext.ViewPort; |
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import org.gvsig.fmap.mapcontext.layers.FLayer; |
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import org.gvsig.fmap.mapcontext.layers.vectorial.FLyrVect; |
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import org.gvsig.fmap.mapcontext.rendering.legend.styling.ILabelClass; |
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import org.gvsig.fmap.mapcontext.rendering.legend.styling.ILabelingMethod; |
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import org.gvsig.fmap.mapcontext.rendering.legend.styling.ILabelingStrategy; |
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import org.gvsig.fmap.mapcontext.rendering.legend.styling.IPlacementConstraints; |
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import org.gvsig.fmap.mapcontext.rendering.legend.styling.IZoomConstraints; |
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import org.gvsig.fmap.mapcontext.rendering.symbols.CartographicSupport; |
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import org.gvsig.i18n.Messages; |
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import org.gvsig.labeling.lang.LabelClassUtils; |
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import org.gvsig.labeling.placements.ILabelPlacement; |
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import org.gvsig.labeling.placements.LinePlacementConstraints; |
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import org.gvsig.labeling.placements.MultiShapePlacementConstraints; |
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import org.gvsig.labeling.placements.PlacementManager; |
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import org.gvsig.labeling.placements.PointPlacementConstraints; |
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import org.gvsig.labeling.placements.PolygonPlacementConstraints; |
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import org.gvsig.labeling.placements.RemoveDuplicatesComparator; |
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import org.gvsig.labeling.symbol.SmartTextSymbol; |
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import org.gvsig.labeling.symbol.SymbolUtils; |
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import org.gvsig.symbology.SymbologyLocator; |
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import org.gvsig.symbology.fmap.mapcontext.rendering.legend.styling.LabelLocationMetrics; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dispose.DisposableIterator; |
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import org.gvsig.tools.dynobject.DynStruct; |
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import org.gvsig.tools.persistence.PersistenceManager; |
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import org.gvsig.tools.persistence.PersistentState; |
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import org.gvsig.tools.persistence.exception.PersistenceException; |
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import org.gvsig.tools.task.Cancellable; |
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|
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public class GeneralLabelingStrategy implements ILabelingStrategy, Cloneable, |
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CartographicSupport { |
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|
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private static final Logger logger = LoggerFactory |
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.getLogger(GeneralLabelingStrategy.class); |
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|
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public static final String GENERAL_LABEL_STRATEGY_PERSISTENCE_NAME = "GENERAL_LABEL_STRATEGY_PERSISTENCE_NAME"; |
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|
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public static PointPlacementConstraints DefaultPointPlacementConstraints = new PointPlacementConstraints(); |
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public static LinePlacementConstraints DefaultLinePlacementConstraints = new LinePlacementConstraints(); |
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public static PolygonPlacementConstraints DefaultPolygonPlacementConstraints = new PolygonPlacementConstraints(); |
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|
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private static String[] NO_TEXT = { Messages.getText("text_field") }; |
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|
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private static MultiShapePlacementConstraints DefaultMultiShapePlacementConstratints = new MultiShapePlacementConstraints(); |
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|
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private ILabelingMethod method;
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private IPlacementConstraints placementConstraints;
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private IZoomConstraints zoomConstraints;
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|
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private boolean allowOverlapping; |
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|
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protected FLyrVect layer;
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|
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// private long parseTime;
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private int unit; |
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private int referenceSystem; |
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// private double sizeAfter;
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private boolean printMode = false; /* |
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* indicate whether output is for a
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* print product (PDF, PS, ...)
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*/
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private List<Geometry> drawnGeometryLabels; |
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|
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public GeneralLabelingStrategy() {
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method = SymbologyLocator.getSymbologyManager() |
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.createDefaultLabelingMethod(); |
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} |
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|
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public void setLayer(FLayer layer) { |
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FLyrVect l = (FLyrVect) layer; |
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this.layer = l;
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} |
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|
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public ILabelingMethod getLabelingMethod() {
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return method;
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} |
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|
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public void setLabelingMethod(ILabelingMethod method) { |
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this.method = method;
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} |
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|
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private class GeometryItem { |
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public Geometry geom = null; |
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public int weigh = 0; |
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public double savedPerimeter; |
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|
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public GeometryItem(Geometry geom, int weigh) { |
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this.geom = geom;
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this.weigh = weigh;
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this.savedPerimeter = 0; |
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} |
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} |
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|
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public void draw(BufferedImage mapImage, Graphics2D mapGraphics, double scale, ViewPort viewPort, |
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Cancellable cancel, double dpi) throws ReadException { |
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|
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drawnGeometryLabels = new ArrayList<Geometry>(1000); |
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int x = (int) viewPort.getOffset().getX(); |
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int y = (int) viewPort.getOffset().getY(); |
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|
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// offsets for page generation (PDF, PS, direct printing)
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int print_offset_x = x;
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int print_offset_y = y;
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if (printMode) {
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// for printing, we never offset the labels themselves
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x = 0;
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y = 0;
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printMode = false;
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} |
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TreeMap<String[], GeometryItem> labelsToPlace = null; |
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String[] usedFields = getUsedFields(); |
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int notPlacedCount = 0; |
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int placedCount = 0; |
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|
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/*
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* Get the label placement solvers according the user's settings
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*/
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ILabelPlacement placement = PlacementManager.getPlacement(getPlacementConstraints(), layer.getShapeType()); |
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BufferedImage targetBI;
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Graphics2D targetGr;
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/*
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* get an ordered set of the LabelClasses up on the label priority
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*/
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ILabelClass[] lcs = method.getLabelClasses();
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TreeSet<ILabelClass> ts = new TreeSet<ILabelClass>(new LabelClassComparatorByPriority()); |
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for (int i = 0; i < lcs.length; i++) |
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ts.add(lcs[i]); |
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|
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if (ts.size() == 0) |
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return;
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|
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/*
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* now we have an ordered set, it is only need to give a pass for each
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* label class to render by priorities.
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*
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* If no priorities were defined, the following loop only executes once
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*/
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for (ILabelClass lc : ts) {
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if (!lc.isVisible(scale)) {
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/*
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* Avoid non-visible labels
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*/
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continue;
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} |
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FeatureSet fset = null;
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DisposableIterator diter = null;
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try {
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try {
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fset = method.getFeatureIteratorByLabelClass(layer, lc, viewPort, usedFields); |
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} catch (DataException e) {
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throw new ReadException(layer.getFeatureStore().getProviderName(), e); |
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} |
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// duplicates treatment stuff
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/* handle the duplicates mode */
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int duplicateMode = getDuplicateLabelsMode();
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if (duplicateMode == IPlacementConstraints.REMOVE_DUPLICATE_LABELS) {
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// we need to register the labels already placed
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labelsToPlace = new TreeMap<String[], GeometryItem>(new RemoveDuplicatesComparator()); |
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} |
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boolean bLabelsReallocatable = !isAllowingOverlap();
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BufferedImage overlapDetectImage = null; |
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Graphics2D overlapDetectGraphics = null; |
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if (bLabelsReallocatable) {
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int width = viewPort.getImageWidth() + print_offset_x;
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if (width < 0) { |
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width = 1;
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} |
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int height = viewPort.getImageHeight() + print_offset_y;
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if (height < 0) { |
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height = 1;
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} |
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if (mapImage != null) |
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overlapDetectImage = |
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new BufferedImage(mapImage.getWidth() + print_offset_x, mapImage.getHeight() |
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+ print_offset_y, BufferedImage.TYPE_INT_ARGB);
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else
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overlapDetectImage = |
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new BufferedImage(viewPort.getImageWidth() + print_offset_x, viewPort.getImageHeight() |
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+ print_offset_y, BufferedImage.TYPE_INT_ARGB);
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overlapDetectGraphics = overlapDetectImage.createGraphics(); |
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overlapDetectGraphics.setRenderingHints(mapGraphics.getRenderingHints()); |
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} |
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if (bLabelsReallocatable) {
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targetBI = overlapDetectImage; |
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targetGr = overlapDetectGraphics; |
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targetGr.translate(-x, -y); |
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} else {
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targetBI = mapImage; |
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targetGr = mapGraphics; |
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} |
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try {
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diter = fset.fastIterator(); |
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} catch (DataException e) {
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throw new ReadException(layer.getFeatureStore().getProviderName(), e); |
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} |
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Feature featu = null;
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Geometry geome = null;
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while (!cancel.isCanceled() && diter.hasNext()) {
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featu = ((Feature) diter.next()).getCopy(); |
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geome = featu.getDefaultGeometry(); |
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if (geome == null || geome.getType() == Geometry.TYPES.NULL) { |
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continue;
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} |
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ICoordTrans ct = layer.getCoordTrans(); |
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if( ct!=null ) { |
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geome.reProject(ct); |
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} |
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if (!setupLabel(featu, lc, cancel, usedFields, viewPort, dpi, duplicateMode)) {
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continue;
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} |
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String[] texts = lc.getTexts(); |
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if (duplicateMode == IPlacementConstraints.REMOVE_DUPLICATE_LABELS) {
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// check if this text (so label) is already present in
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// the map
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GeometryItem item = labelsToPlace.get(texts); |
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if (item == null) { |
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item = new GeometryItem(geome, 0); |
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labelsToPlace.put(texts, item); |
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} |
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if (item.geom != null) { |
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|
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notPlacedCount++; |
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if (geome.getType() != Geometry.TYPES.POINT) {
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|
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Envelope auxBox = geome.getEnvelope(); |
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double perimeterAux = 2 * (auxBox.getLength(0) + auxBox.getLength(1)); |
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if (perimeterAux > item.savedPerimeter) {
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item.geom = geome; // FConverter.jts_to_igeometry(jtsGeom);
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item.savedPerimeter = perimeterAux; |
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} |
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} else {
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int weigh = item.weigh;
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try {
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Point pointFromLabel = item.geom.centroid();
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Point pointGeome = geome.centroid();
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item.geom = |
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GeometryLocator.getGeometryManager().createPoint( |
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(pointFromLabel.getX() * weigh + pointGeome.getX()) / (weigh + 1),
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(pointFromLabel.getY() * weigh + pointGeome.getY()) / (weigh + 1),
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Geometry.SUBTYPES.GEOM2D); |
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} catch (Exception ex) { |
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throw new ReadException(layer.getFeatureStore().getProviderName(), ex); |
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} |
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|
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} |
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} else {
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item.geom = geome; |
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} |
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item.weigh++; |
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} else {
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// Check if size is a pixel
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if (isOnePoint(viewPort, geome)) {
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continue;
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} |
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|
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List<Geometry> geome_parts = new ArrayList<Geometry>(); |
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if (duplicateMode == IPlacementConstraints.ONE_LABEL_PER_FEATURE_PART) {
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geome_parts = getGeometryParts(geome); |
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} else {
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geome_parts.add(geome); |
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} |
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|
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try {
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int n = geome_parts.size();
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for (int k = 0; k < n; k++) { |
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drawLabelInGeom(targetBI, targetGr, lc, placement, viewPort, geome_parts.get(k), |
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cancel, dpi, bLabelsReallocatable); |
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} |
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} catch (GeometryException e) {
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throw new ReadException(layer.getFeatureStore().getProviderName(), e); |
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} |
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|
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placedCount++; |
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} |
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} |
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|
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// ======= End iteration in feature set ====================
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|
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if (duplicateMode == IPlacementConstraints.REMOVE_DUPLICATE_LABELS) {
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Iterator<String[]> textsIt = labelsToPlace.keySet().iterator(); |
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while (!cancel.isCanceled() && textsIt.hasNext()) {
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notPlacedCount++; |
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String[] texts = textsIt.next(); |
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|
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GeometryItem item = labelsToPlace.get(texts); |
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if (item != null) { |
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lc.setTexts(texts); |
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// Check if size is a pixel
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if (isOnePoint(viewPort, item.geom)) {
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continue;
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} |
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|
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try {
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drawLabelInGeom(targetBI, targetGr, lc, placement, viewPort, item.geom, cancel, dpi, |
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bLabelsReallocatable); |
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} catch (GeometryException e) {
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throw new ReadException(layer.getFeatureStore().getProviderName(), e); |
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} |
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} |
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} |
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} |
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|
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if (bLabelsReallocatable) {
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targetGr.translate(x, y); |
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if (mapImage != null) { |
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mapGraphics.drawImage(overlapDetectImage, null, null); |
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} else {
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mapGraphics.drawImage(overlapDetectImage, null, null); |
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} |
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} |
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|
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} finally {
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if (diter != null) { |
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diter.dispose(); |
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} |
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if (fset != null) { |
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fset.dispose(); |
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} |
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} |
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} // big iteration
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|
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} |
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|
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private List<Geometry> getGeometryParts(Geometry ge) { |
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|
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List<Geometry> resp = new ArrayList<Geometry>(); |
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if (ge != null) { |
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if (ge instanceof MultiPrimitive) { |
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MultiPrimitive mp = (MultiPrimitive) ge; |
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int n = mp.getPrimitivesNumber();
|
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for (int i = 0; i < n; i++) { |
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resp.add(mp.getPrimitiveAt(i)); |
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} |
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} else {
|
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resp.add(ge); |
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} |
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} |
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return resp;
|
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} |
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|
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private void drawLabelInGeom(BufferedImage targetBI, Graphics2D targetGr, |
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ILabelClass lc, ILabelPlacement placement, ViewPort viewPort, |
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Geometry geom, Cancellable cancel, double dpi,
|
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boolean bLabelsReallocatable) throws GeometryException { |
403 |
|
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lc.toCartographicSize(viewPort, dpi, null);
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ArrayList<LabelLocationMetrics> llm = null; |
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llm = placement.guess(lc, geom, getPlacementConstraints(), 0, cancel,
|
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viewPort); |
408 |
|
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setReferenceSystem(lc.getReferenceSystem()); |
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setUnit(lc.getUnit()); |
411 |
|
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/*
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* search if there is room left by the previous and with more priority
|
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* labels, then check the current level
|
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*/
|
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lookupAndPlaceLabel(targetBI, targetGr, llm, placement, lc, geom, |
417 |
viewPort, cancel, bLabelsReallocatable); |
418 |
|
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} |
420 |
|
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private int getDuplicateLabelsMode() { |
422 |
if (getPlacementConstraints() == null) { |
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return IPlacementConstraints.DefaultDuplicateLabelsMode;
|
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} |
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return getPlacementConstraints().getDuplicateLabelsMode();
|
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} |
427 |
|
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private boolean lookupAndPlaceLabel(BufferedImage bi, Graphics2D g, |
429 |
ArrayList<LabelLocationMetrics> llm, ILabelPlacement placement,
|
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ILabelClass lc, Geometry geom, ViewPort viewPort, |
431 |
Cancellable cancel, boolean bLabelsReallocatable)
|
432 |
throws GeometryException {
|
433 |
|
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GeometryManager gm = GeometryLocator.getGeometryManager(); |
435 |
int i;
|
436 |
for (i = 0; !cancel.isCanceled() && i < llm.size(); i++) { |
437 |
LabelLocationMetrics labelMetrics = llm.get(i); |
438 |
|
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IPlacementConstraints pc = getPlacementConstraints(); |
440 |
if (pc instanceof MultiShapePlacementConstraints) { |
441 |
MultiShapePlacementConstraints mpc = (MultiShapePlacementConstraints) pc; |
442 |
|
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GeometryType geom_gt = null;
|
444 |
|
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geom_gt = gm.getGeometryType(geom.getType(), SUBTYPES.GEOM2D); |
446 |
|
447 |
if (geom_gt.getType() == TYPES.POINT
|
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|| geom_gt.getType() == TYPES.MULTIPOINT) { |
449 |
pc = mpc.getPointConstraints(); |
450 |
} else {
|
451 |
if (geom_gt.isTypeOf(TYPES.CURVE)
|
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|| geom_gt.getType() == TYPES.MULTICURVE) { |
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pc = mpc.getLineConstraints(); |
454 |
} else {
|
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if (geom_gt.isTypeOf(TYPES.SURFACE)
|
456 |
|| geom_gt.getType() == TYPES.MULTISURFACE) { |
457 |
pc = mpc.getPolygonConstraints(); |
458 |
} |
459 |
} |
460 |
} |
461 |
} |
462 |
|
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/*
|
464 |
* Ver comentario en el metodo drawLabelInGeom
|
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*/
|
466 |
if (bLabelsReallocatable) {
|
467 |
|
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Geometry aux_geom = null;
|
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aux_geom = lc.getShape(labelMetrics); |
470 |
|
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if (!isOverlapping(bi, aux_geom)) {
|
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|
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if (!pc.isFollowingLine()) {
|
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lc.draw(g, labelMetrics, geom); |
475 |
} else {
|
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|
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ILabelClass smsLc = new SmartTextSymbolLabelClass();
|
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SmartTextSymbol sms = new SmartTextSymbol(
|
479 |
lc.getTextSymbol(), pc); |
480 |
|
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double sizeBefore = lc.getTextSymbol().getFont()
|
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.getSize(); |
483 |
double sizeAfter = SymbolUtils.getCartographicLength(
|
484 |
this, sizeBefore, viewPort, viewPort.getDPI());
|
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sms.setFontSize(sizeAfter); |
486 |
|
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smsLc.setTextSymbol(sms); |
488 |
geom.transform(viewPort.getAffineTransform()); |
489 |
smsLc.draw(g, null, geom);
|
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sms.setFontSize(sizeBefore); |
491 |
|
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} |
493 |
return true; |
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} |
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} else {
|
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if (!pc.isFollowingLine()) {
|
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lc.draw(g, labelMetrics, null);
|
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} else {
|
499 |
ILabelClass smsLc = new SmartTextSymbolLabelClass();
|
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SmartTextSymbol sms = new SmartTextSymbol(
|
501 |
lc.getTextSymbol(), pc); |
502 |
|
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double sizeBefore = lc.getTextSymbol().getFont().getSize();
|
504 |
double sizeAfter = SymbolUtils.getCartographicLength(this, |
505 |
sizeBefore, viewPort, viewPort.getDPI()); |
506 |
sms.setFontSize(sizeAfter); |
507 |
|
508 |
smsLc.setTextSymbol(sms); |
509 |
geom.transform(viewPort.getAffineTransform()); |
510 |
smsLc.draw(g, null, geom);
|
511 |
|
512 |
sms.setFontSize(sizeBefore); |
513 |
} |
514 |
return true; |
515 |
} |
516 |
} |
517 |
return false; |
518 |
} |
519 |
|
520 |
/**
|
521 |
* Divide una cadena de caracteres por el caracter dos puntos siempre que no
|
522 |
* est? entre comillas.
|
523 |
*
|
524 |
* @param str
|
525 |
* Cadena de caracteres
|
526 |
*
|
527 |
* @return String[]
|
528 |
*
|
529 |
*/
|
530 |
private String[] divideExpression(String str) { |
531 |
ArrayList<String> r = new ArrayList<String>(); |
532 |
boolean inQuotationMarks = false; |
533 |
int lastIndex = 0; |
534 |
for (int i = 0; i < str.length(); i++) { |
535 |
String currentChar = str.substring(i, i + 1); |
536 |
if (currentChar.compareTo("\"") == 0 ) { |
537 |
inQuotationMarks = !inQuotationMarks; |
538 |
// Si es el cierre de las comillas
|
539 |
if(!inQuotationMarks){
|
540 |
r.add(str.substring(lastIndex, i + 1).replace("\"", "'")); |
541 |
lastIndex = i + 1;
|
542 |
} |
543 |
} |
544 |
if (currentChar.compareTo(":") == 0 |
545 |
&& !inQuotationMarks) { |
546 |
if (lastIndex < i) {
|
547 |
r.add(str.substring(lastIndex, i)); |
548 |
} |
549 |
lastIndex = i + 1;
|
550 |
} |
551 |
} |
552 |
if (lastIndex < str.length() - 1) { |
553 |
r.add(str.substring(lastIndex)); |
554 |
} |
555 |
String[] result = new String[r.size()]; |
556 |
r.toArray(result); |
557 |
return result;
|
558 |
} |
559 |
|
560 |
/**
|
561 |
* Compute the texts to show in the label and store them in LabelClass.
|
562 |
*/
|
563 |
@SuppressWarnings("unchecked") |
564 |
private boolean setupLabel(Feature featu, ILabelClass lc, |
565 |
Cancellable cancel, String[] usedFields, ViewPort viewPort, |
566 |
double dpi, int duplicateMode) { |
567 |
|
568 |
String expr = lc.getStringLabelExpression();
|
569 |
|
570 |
long pt1 = System.currentTimeMillis(); |
571 |
String[] texts = NO_TEXT; |
572 |
List<String> preTexts = new ArrayList<String>(); |
573 |
try {
|
574 |
if (expr != null) { |
575 |
|
576 |
if (expr.equals("")) { |
577 |
expr = texts[0];
|
578 |
} |
579 |
|
580 |
String[] multiexpr = divideExpression(expr); |
581 |
for (int i = 0; i < multiexpr.length; i++) { |
582 |
|
583 |
expr = multiexpr[i]; |
584 |
Object res = LabelClassUtils.evaluate(expr,
|
585 |
featu.getEvaluatorData()); |
586 |
if (res != null) { |
587 |
preTexts.add(res.toString()); |
588 |
} else {
|
589 |
preTexts.add("");
|
590 |
} |
591 |
} |
592 |
texts = new String[preTexts.size()]; |
593 |
preTexts.toArray(texts); |
594 |
// parseTime += System.currentTimeMillis()-pt1;
|
595 |
} |
596 |
lc.setTexts(texts); |
597 |
|
598 |
} catch (Exception e) { |
599 |
logger.warn("While setting up label", e);
|
600 |
return false; |
601 |
} |
602 |
return true; |
603 |
} |
604 |
|
605 |
private boolean isOverlapping(BufferedImage bi, Geometry lblgeom) { |
606 |
|
607 |
for (Iterator iterator = drawnGeometryLabels.iterator(); iterator.hasNext();) { |
608 |
Geometry drawnGeometry = (Geometry) iterator.next(); |
609 |
try {
|
610 |
if (drawnGeometry.intersects(lblgeom)) {
|
611 |
return true; |
612 |
} |
613 |
} catch (GeometryOperationNotSupportedException | GeometryOperationException e) {
|
614 |
logger.warn("Can't check overlapping geometry");
|
615 |
} |
616 |
} |
617 |
drawnGeometryLabels.add(lblgeom); |
618 |
return false; |
619 |
|
620 |
} |
621 |
|
622 |
private boolean isOnePoint(ViewPort viewPort, Geometry geom) { |
623 |
|
624 |
boolean onePoint = false; |
625 |
int shapeType = geom.getType();
|
626 |
|
627 |
if (shapeType != TYPES.POINT && shapeType != TYPES.MULTIPOINT) {
|
628 |
|
629 |
Envelope env = geom.getEnvelope(); |
630 |
double dist1Pixel = viewPort.getDist1pixel();
|
631 |
onePoint = (env.getLength(0) <= dist1Pixel && env.getLength(1) <= dist1Pixel); |
632 |
} |
633 |
return onePoint;
|
634 |
} |
635 |
|
636 |
public boolean isAllowingOverlap() { |
637 |
return allowOverlapping;
|
638 |
} |
639 |
|
640 |
public void setAllowOverlapping(boolean allowOverlapping) { |
641 |
this.allowOverlapping = allowOverlapping;
|
642 |
} |
643 |
|
644 |
public IPlacementConstraints getPlacementConstraints() {
|
645 |
if (placementConstraints != null) |
646 |
return placementConstraints;
|
647 |
|
648 |
GeometryType gt = null;
|
649 |
|
650 |
try {
|
651 |
gt = layer.getGeometryType(); |
652 |
// force 2d for comparison
|
653 |
gt = GeometryLocator.getGeometryManager().getGeometryType( |
654 |
gt.getType(), SUBTYPES.GEOM2D); |
655 |
} catch (Exception e) { |
656 |
logger.error("While getting placements constraints.", e);
|
657 |
return null; |
658 |
} |
659 |
|
660 |
if (gt.isTypeOf(TYPES.POINT) || gt.isTypeOf(TYPES.MULTIPOINT)) {
|
661 |
return DefaultPointPlacementConstraints;
|
662 |
} else {
|
663 |
if (gt.isTypeOf(TYPES.CURVE) || gt.isTypeOf(TYPES.MULTICURVE)) {
|
664 |
return DefaultLinePlacementConstraints;
|
665 |
} else {
|
666 |
if (gt.isTypeOf(TYPES.SURFACE)
|
667 |
|| gt.isTypeOf(TYPES.MULTISURFACE)) { |
668 |
return DefaultPolygonPlacementConstraints;
|
669 |
} else {
|
670 |
if (gt.isTypeOf(TYPES.AGGREGATE)
|
671 |
|| gt.isTypeOf(TYPES.GEOMETRY)) { |
672 |
DefaultMultiShapePlacementConstratints |
673 |
.setPointConstraints(DefaultPointPlacementConstraints); |
674 |
DefaultMultiShapePlacementConstratints |
675 |
.setLineConstraints(DefaultLinePlacementConstraints); |
676 |
DefaultMultiShapePlacementConstratints |
677 |
.setPolygonConstraints(DefaultPolygonPlacementConstraints); |
678 |
return DefaultMultiShapePlacementConstratints;
|
679 |
} |
680 |
} |
681 |
} |
682 |
} |
683 |
return null; |
684 |
} |
685 |
|
686 |
public void setPlacementConstraints(IPlacementConstraints constraints) { |
687 |
this.placementConstraints = constraints;
|
688 |
} |
689 |
|
690 |
public IZoomConstraints getZoomConstraints() {
|
691 |
return zoomConstraints;
|
692 |
} |
693 |
|
694 |
public void setZoomConstraints(IZoomConstraints constraints) { |
695 |
this.zoomConstraints = constraints;
|
696 |
} |
697 |
|
698 |
public void print(Graphics2D g, double scale, ViewPort viewPort, |
699 |
Cancellable cancel, PrintAttributes properties) |
700 |
throws ReadException {
|
701 |
|
702 |
double dpi = 100; |
703 |
int pq = properties.getPrintQuality();
|
704 |
if (pq == PrintAttributes.PRINT_QUALITY_NORMAL) {
|
705 |
dpi = 300;
|
706 |
} else if (pq == PrintAttributes.PRINT_QUALITY_HIGH) { |
707 |
dpi = 600;
|
708 |
} else if (pq == PrintAttributes.PRINT_QUALITY_DRAFT) { |
709 |
dpi = 72;
|
710 |
} |
711 |
|
712 |
viewPort.setOffset(new Point2D.Double(0, 0)); |
713 |
|
714 |
/* signal printing output */
|
715 |
printMode = true;
|
716 |
|
717 |
draw(null, g, scale, viewPort, cancel, dpi);
|
718 |
} |
719 |
|
720 |
public String[] getUsedFields() { |
721 |
|
722 |
/*
|
723 |
* TODO Solve the problem with the [ and ]. Currently SQLJEP evaluator
|
724 |
* cannot tell which fields are being used. Options: allow [] and remove
|
725 |
* them or maybe while parsing the SQLJEP evaluator can inform with
|
726 |
* events like "I have found a field"
|
727 |
*/
|
728 |
|
729 |
FeatureAttributeDescriptor[] atts = null; |
730 |
try {
|
731 |
atts = layer.getFeatureStore().getDefaultFeatureType() |
732 |
.getAttributeDescriptors(); |
733 |
} catch (DataException e) {
|
734 |
logger.error("While getting atributes.", e);
|
735 |
} |
736 |
|
737 |
int n = atts.length;
|
738 |
String[] resp = new String[n]; |
739 |
for (int i = 0; i < n; i++) { |
740 |
resp[i] = atts[i].getName(); |
741 |
} |
742 |
return resp;
|
743 |
|
744 |
} |
745 |
|
746 |
public boolean shouldDrawLabels(double scale) { |
747 |
double minScaleView = -1; |
748 |
double maxScaleView = -1; |
749 |
|
750 |
if (zoomConstraints != null) { |
751 |
minScaleView = zoomConstraints.getMinScale(); |
752 |
maxScaleView = zoomConstraints.getMaxScale(); |
753 |
} |
754 |
|
755 |
if (minScaleView == -1 && maxScaleView == -1) { |
756 |
// parameters not set, so the layer decides.
|
757 |
return layer.isWithinScale(scale);
|
758 |
} |
759 |
|
760 |
if (minScaleView >= scale) {
|
761 |
return (maxScaleView != -1) ? maxScaleView <= scale : true; |
762 |
} |
763 |
|
764 |
return false; |
765 |
} |
766 |
|
767 |
public void setUnit(int unitIndex) { |
768 |
unit = unitIndex; |
769 |
|
770 |
} |
771 |
|
772 |
public int getUnit() { |
773 |
return unit;
|
774 |
} |
775 |
|
776 |
public int getReferenceSystem() { |
777 |
return referenceSystem;
|
778 |
} |
779 |
|
780 |
public void setReferenceSystem(int referenceSystem) { |
781 |
this.referenceSystem = referenceSystem;
|
782 |
} |
783 |
|
784 |
public static void registerPersistent() { |
785 |
|
786 |
PersistenceManager manager = ToolsLocator.getPersistenceManager(); |
787 |
if (manager.getDefinition(GENERAL_LABEL_STRATEGY_PERSISTENCE_NAME) == null) { |
788 |
DynStruct definition = manager.addDefinition( |
789 |
GeneralLabelingStrategy.class, |
790 |
GENERAL_LABEL_STRATEGY_PERSISTENCE_NAME, |
791 |
GENERAL_LABEL_STRATEGY_PERSISTENCE_NAME |
792 |
+ " Persistence definition", null, null); |
793 |
definition.addDynFieldObject("labelingMethod")
|
794 |
.setClassOfValue(ILabelingMethod.class).setMandatory(true);
|
795 |
definition.addDynFieldObject("placementConstraints")
|
796 |
.setClassOfValue(IPlacementConstraints.class) |
797 |
.setMandatory(false);
|
798 |
definition.addDynFieldObject("zoomConstraints")
|
799 |
.setClassOfValue(IZoomConstraints.class) |
800 |
.setMandatory(false);
|
801 |
|
802 |
definition.addDynFieldBoolean("allowOverlapping")
|
803 |
.setMandatory(true);
|
804 |
definition.addDynFieldInt("unit").setMandatory(true); |
805 |
definition.addDynFieldInt("referenceSystem").setMandatory(true); |
806 |
} |
807 |
} |
808 |
|
809 |
public void loadFromState(PersistentState state) |
810 |
throws PersistenceException {
|
811 |
|
812 |
method = (ILabelingMethod) state.get("labelingMethod");
|
813 |
|
814 |
if (state.hasValue("placementConstraints")) { |
815 |
placementConstraints = (IPlacementConstraints) state |
816 |
.get("placementConstraints");
|
817 |
} |
818 |
|
819 |
if (state.hasValue("zoomConstraints")) { |
820 |
zoomConstraints = (IZoomConstraints) state.get("zoomConstraints");
|
821 |
} |
822 |
|
823 |
this.allowOverlapping = state.getBoolean("allowOverlapping"); |
824 |
this.unit = state.getInt("unit"); |
825 |
this.referenceSystem = state.getInt("referenceSystem"); |
826 |
} |
827 |
|
828 |
public void saveToState(PersistentState state) throws PersistenceException { |
829 |
|
830 |
state.set("labelingMethod", method);
|
831 |
|
832 |
if (placementConstraints != null) { |
833 |
state.set("placementConstraints", placementConstraints);
|
834 |
} |
835 |
|
836 |
if (zoomConstraints != null) { |
837 |
state.set("zoomConstraints", zoomConstraints);
|
838 |
} |
839 |
|
840 |
state.set("allowOverlapping", allowOverlapping);
|
841 |
state.set("unit", unit);
|
842 |
state.set("referenceSystem", referenceSystem);
|
843 |
|
844 |
} |
845 |
|
846 |
public double toCartographicSize(ViewPort vp, double dpi, Geometry geom) { |
847 |
/*
|
848 |
* This method is not used but we must implement CartographicSupport
|
849 |
*/
|
850 |
return 0; |
851 |
} |
852 |
|
853 |
public void setCartographicSize(double cartographicSize, Geometry geom) { |
854 |
/*
|
855 |
* This method is not used but we must implement CartographicSupport
|
856 |
*/
|
857 |
} |
858 |
|
859 |
public double getCartographicSize(ViewPort vp, double dpi, Geometry geom) { |
860 |
/*
|
861 |
* This method is not used but we must implement CartographicSupport
|
862 |
*/
|
863 |
return 0; |
864 |
} |
865 |
|
866 |
public Object clone() throws CloneNotSupportedException { |
867 |
return LabelClassUtils.clone(this); |
868 |
} |
869 |
|
870 |
} |