Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/artifacts/map/PrintMap.java @ 6693:88bb0c794833
issue1391: Enable GaugeDischarge artifact to directly load a table by its ID
This allows us to use the GaugeDischargeArtifact for any discharge
tables that we have in our database. The name of the created facet
is taken from the ids string as is also usual in the WMS artifacts.
author | Andre Heinecke <aheinecke@intevation.de> |
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date | Mon, 29 Jul 2013 12:19:57 +0200 |
parents | af13ceeba52a |
children |
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/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde * Software engineering by Intevation GmbH * * This file is Free Software under the GNU AGPL (>=v3) * and comes with ABSOLUTELY NO WARRANTY! Check out the * documentation coming with Dive4Elements River for details. */ package org.dive4elements.river.artifacts.map; import java.awt.Color; import java.awt.Rectangle; import java.io.File; import java.io.IOException; import java.awt.Graphics2D; import java.awt.image.BufferedImage; import java.util.List; import java.net.URL; import java.net.MalformedURLException; import javax.imageio.ImageIO; import org.geotools.data.ows.Layer; import org.geotools.data.ows.WMSCapabilities; import org.geotools.data.wms.WebMapServer; import org.geotools.geometry.jts.ReferencedEnvelope; import org.geotools.map.MapContext; import org.geotools.map.WMSMapLayer; import org.geotools.ows.ServiceException; import org.geotools.renderer.lite.StreamingRenderer; import org.geotools.renderer.GTRenderer; public class PrintMap { 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"; public static final String DEFAULT_OUTFILE = "~/map.jpeg"; public static final String MAPSERVER = System.getProperty("wms", DEFAULT_WMS); public static final String MAP_IMAGE = System.getProperty("outfile", DEFAULT_OUTFILE); public static void main(String[] args) { System.out.println("-> start PrintMap"); System.out.println(" -> Print layers of WMS: " + MAPSERVER); try { WebMapServer server = getMapserver(); WMSMapLayer[] wmsLayer = getWMSLayers(server); MapContext mapcontent = new MapContext( wmsLayer ); mapcontent.setTitle(" NEW MAP CONTENT TITLE "); printMap(mapcontent); } catch (Exception e) { e.printStackTrace(); } System.out.println("-> finished PrintMap"); } public static void printMap(MapContext map) throws Exception { int imageWidth = 600; GTRenderer renderer = new StreamingRenderer(); renderer.setContext(map); Rectangle imageBounds = null; ReferencedEnvelope mapBounds = null; try { mapBounds = map.getLayerBounds(); double heightToWidth = mapBounds.getSpan(1) / mapBounds.getSpan(0); imageBounds = new Rectangle( 0, 0, imageWidth, (int) Math.round(imageWidth * heightToWidth)); } catch (Exception e) { // failed to access map layers throw new RuntimeException(e); } BufferedImage image = new BufferedImage(imageBounds.width, imageBounds.height, BufferedImage.TYPE_INT_RGB); Graphics2D gr = image.createGraphics(); gr.setPaint(Color.WHITE); gr.fill(imageBounds); try { renderer.paint(gr, imageBounds, mapBounds); File fileToSave = new File(MAP_IMAGE); ImageIO.write(image, "jpeg", fileToSave); } catch (IOException e) { throw new RuntimeException(e); } } public static WebMapServer getMapserver() throws MalformedURLException, IOException, ServiceException { return new WebMapServer(getServerUrl()); } public static URL getServerUrl() throws MalformedURLException { return new URL(MAPSERVER); } public static WMSMapLayer[] getWMSLayers(WebMapServer server) { if (server == null) { System.out.println("WebMapServer == null"); throw new RuntimeException("WebMapServer == null"); } WMSCapabilities capabilities = server.getCapabilities(); List<Layer> layers = capabilities.getLayerList(); WMSMapLayer[] wmslayers = new WMSMapLayer[layers.size()]; for (int i = 0, L = layers.size(); i < L; i++) { Layer l = layers.get(i); System.out.println(" -> add layer: " + l); wmslayers[i] = new WMSMapLayer(server, l); } return wmslayers; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :