Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/java2d/ShapeUtils.java @ 3252:62c9bcef0680

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Fix issue705 (maín value names also in w/q-range mode). flys-artifacts/trunk@4886 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Fri, 06 Jul 2012 12:24:44 +0000
parents 0d8146989012
children
rev   line source
3162
0d8146989012 Added labeling for Q/W points FixingsKMChartService.
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1 package de.intevation.flys.java2d;
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2
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3 import java.awt.Shape;
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4
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5 import java.awt.geom.AffineTransform;
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6 import java.awt.geom.Ellipse2D;
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7 import java.awt.geom.GeneralPath;
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8 import java.awt.geom.Rectangle2D;
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9
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10 import java.util.HashMap;
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11 import java.util.Map;
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12
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13 public class ShapeUtils
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14 {
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15 // TODO: Use enum
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16 public static final int MEASURED = 0;
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17 public static final int DIGITIZED = 1;
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18 public static final int INTERPOLATED = 2;
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19
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20 public static final boolean DIGITIZED_FILL = false;
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21 public static final boolean MEASURED_FILL = true;
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22 public static final boolean INTERPOLATED_FILL = false;
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23
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24 public static final Shape DIGITIZED_SHAPE =
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25 createCross(4f);
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26
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27 public static final Shape MEASURED_SHAPE =
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28 new Rectangle2D.Double(-2, -2, 4, 4);
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29
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30 public static final Shape INTERPOLATED_SHAPE =
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31 new Ellipse2D.Double(-2, -2, 4, 4);
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32
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33 protected static Map<Long, Shape> scaledShapesCache =
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34 new HashMap<Long, Shape>();
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35
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36 public static final Shape createCross(float size) {
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37 float half = size * 0.5f;
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38 GeneralPath p = new GeneralPath();
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39 p.moveTo(-half, -half);
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40 p.lineTo(half, half);
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41 p.closePath();
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42 p.moveTo(-half, half);
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43 p.lineTo(half, -half);
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44 p.closePath();
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45 return p;
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46 }
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47
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48 public static Shape scale(Shape shape, float factor) {
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49 if (factor == 1f) {
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50 return shape;
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51 }
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52 AffineTransform xform =
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53 AffineTransform.getScaleInstance(factor, factor);
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54
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55 GeneralPath gp = new GeneralPath(shape);
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56 return gp.createTransformedShape(xform);
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57 }
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58
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59 public static synchronized Shape getScaledShape(int type, float size) {
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60
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61 Long hash = Long.valueOf(
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62 (((long)type) << 32) | Float.floatToIntBits(size));
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63
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64 Shape shape = scaledShapesCache.get(hash);
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65
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66 if (shape == null) {
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67 switch (type) {
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68 case MEASURED:
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69 shape = MEASURED_SHAPE;
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70 break;
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71 case DIGITIZED:
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72 shape = DIGITIZED_SHAPE;
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73 break;
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74 default:
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75 shape = INTERPOLATED_SHAPE;
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76 }
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77 scaledShapesCache.put(hash, shape = scale(shape, size));
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78 }
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79
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80 return shape;
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81 }
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82 }
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83 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org