Mercurial > dive4elements > river
diff artifacts/src/main/java/org/dive4elements/river/artifacts/map/PrintMap.java @ 5838:5aa05a7a34b7
Rename modules to more fitting names.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Thu, 25 Apr 2013 15:23:37 +0200 |
parents | flys-artifacts/src/main/java/org/dive4elements/river/artifacts/map/PrintMap.java@bd047b71ab37 |
children | 4897a58c8746 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/map/PrintMap.java Thu Apr 25 15:23:37 2013 +0200 @@ -0,0 +1,131 @@ +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 :