Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/java2d/ShapeUtils.java @ 5818:a4ff4167be1e

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Request feature info on all layers and show it as html if the server does not return valid gml. Non queryable layers produce an error message when the request fails. This is good enough
author Andre Heinecke <aheinecke@intevation.de>
date Wed, 24 Apr 2013 17:33:27 +0200
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