Mercurial > dive4elements > river

annotate flys-artifacts/src/main/java/de/intevation/flys/artifacts/map/PrintMap.java @ 2561:b3f6d49cdc80

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Service to generate the data needed to build the "Fixerungen pro Fluss Uebersicht" flys-artifacts/trunk@4087 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Sun, 19 Feb 2012 17:14:39 +0000
parents 0cc0e232fa35
children 4bd3d8bbb60c
rev   line source
2328
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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; i < layers.size(); 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);
0cc0e232fa35 Added standalone demo application that prints all layers of a WMS to file.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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125 wmslayers[i] = new WMSMapLayer(server, l);
0cc0e232fa35 Added standalone demo application that prints all layers of a WMS to file.
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126 }
0cc0e232fa35 Added standalone demo application that prints all layers of a WMS to file.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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127
0cc0e232fa35 Added standalone demo application that prints all layers of a WMS to file.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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128 return wmslayers;
0cc0e232fa35 Added standalone demo application that prints all layers of a WMS to file.
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129 }
0cc0e232fa35 Added standalone demo application that prints all layers of a WMS to file.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
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130 }
http://dive4elements.wald.intevation.org