Mercurial > dive4elements > river
annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/map/PrintMap.java @ 5102:baf51f820838
AbstractExporter: Added getter for CallContext.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Tue, 26 Feb 2013 11:48:25 +0100 |
parents | 4a76da133144 |
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rev | line source |
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2328
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Added standalone demo application that prints all layers of a WMS to file.
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1 package de.intevation.flys.artifacts.map; |
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2 |
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3 import java.awt.Color; |
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4 import java.awt.Rectangle; |
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5 |
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6 import java.io.File; |
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7 import java.io.IOException; |
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8 |
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9 import java.awt.Graphics2D; |
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10 import java.awt.image.BufferedImage; |
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11 |
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12 import java.util.List; |
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13 |
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14 import java.net.URL; |
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15 import java.net.MalformedURLException; |
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16 |
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17 import javax.imageio.ImageIO; |
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18 |
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19 |
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20 import org.geotools.data.ows.Layer; |
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21 import org.geotools.data.ows.WMSCapabilities; |
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22 import org.geotools.data.wms.WebMapServer; |
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23 import org.geotools.geometry.jts.ReferencedEnvelope; |
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24 import org.geotools.map.MapContext; |
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25 import org.geotools.map.WMSMapLayer; |
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26 import org.geotools.ows.ServiceException; |
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27 import org.geotools.renderer.lite.StreamingRenderer; |
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28 import org.geotools.renderer.GTRenderer; |
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29 |
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30 |
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31 public class PrintMap { |
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32 |
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33 public static final String DEFAULT_WMS = "http://map1.naturschutz.rlp.de/service_lanis/mod_wms/wms_getmap.php?mapfile=group_gdide&REQUEST=GetCapabilities&SERVICE=WMS"; |
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34 public static final String DEFAULT_OUTFILE = "~/map.jpeg"; |
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35 |
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36 public static final String MAPSERVER = System.getProperty("wms", DEFAULT_WMS); |
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37 public static final String MAP_IMAGE = System.getProperty("outfile", DEFAULT_OUTFILE); |
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38 |
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39 |
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40 public static void main(String[] args) { |
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41 System.out.println("-> start PrintMap"); |
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42 System.out.println(" -> Print layers of WMS: " + MAPSERVER); |
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43 |
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44 try { |
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45 WebMapServer server = getMapserver(); |
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46 WMSMapLayer[] wmsLayer = getWMSLayers(server); |
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47 |
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48 MapContext mapcontent = new MapContext( wmsLayer ); |
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49 mapcontent.setTitle(" NEW MAP CONTENT TITLE "); |
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50 |
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51 printMap(mapcontent); |
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52 } |
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53 catch (Exception e) { |
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54 e.printStackTrace(); |
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55 } |
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56 |
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57 System.out.println("-> finished PrintMap"); |
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58 } |
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59 |
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60 |
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61 public static void printMap(MapContext map) throws Exception { |
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62 int imageWidth = 600; |
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63 |
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64 GTRenderer renderer = new StreamingRenderer(); |
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65 renderer.setContext(map); |
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66 |
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67 Rectangle imageBounds = null; |
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68 ReferencedEnvelope mapBounds = null; |
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69 |
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70 try { |
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71 mapBounds = map.getLayerBounds(); |
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72 double heightToWidth = mapBounds.getSpan(1) / mapBounds.getSpan(0); |
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73 imageBounds = new Rectangle( |
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74 0, 0, |
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75 imageWidth, |
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76 (int) Math.round(imageWidth * heightToWidth)); |
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77 |
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78 } |
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79 catch (Exception e) { |
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80 // failed to access map layers |
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81 throw new RuntimeException(e); |
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82 } |
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83 |
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84 BufferedImage image = new BufferedImage(imageBounds.width, imageBounds.height, BufferedImage.TYPE_INT_RGB); |
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85 Graphics2D gr = image.createGraphics(); |
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86 gr.setPaint(Color.WHITE); |
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87 gr.fill(imageBounds); |
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88 |
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89 try { |
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90 renderer.paint(gr, imageBounds, mapBounds); |
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91 File fileToSave = new File(MAP_IMAGE); |
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92 ImageIO.write(image, "jpeg", fileToSave); |
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93 } |
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94 catch (IOException e) { |
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95 throw new RuntimeException(e); |
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96 } |
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97 } |
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98 |
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99 |
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100 public static WebMapServer getMapserver() throws MalformedURLException, IOException, ServiceException { |
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101 return new WebMapServer(getServerUrl()); |
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102 } |
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103 |
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104 |
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105 public static URL getServerUrl() throws MalformedURLException { |
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106 return new URL(MAPSERVER); |
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107 } |
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108 |
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109 |
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110 public static WMSMapLayer[] getWMSLayers(WebMapServer server) { |
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111 if (server == null) { |
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112 System.out.println("WebMapServer == null"); |
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113 throw new RuntimeException("WebMapServer == null"); |
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114 } |
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115 |
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116 WMSCapabilities capabilities = server.getCapabilities(); |
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117 |
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118 List<Layer> layers = capabilities.getLayerList(); |
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119 WMSMapLayer[] wmslayers = new WMSMapLayer[layers.size()]; |
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120 |
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121 for (int i = 0, L = layers.size(); i < L; i++) { |
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122 Layer l = layers.get(i); |
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123 |
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124 System.out.println(" -> add layer: " + l); |
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125 wmslayers[i] = new WMSMapLayer(server, l); |
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126 } |
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127 |
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128 return wmslayers; |
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129 } |
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130 } |
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131 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |