/**
* @param envelope
* @param width
* @param height
* @return
* @throws ThinklabResourceNotFoundException
*/
private BufferedImage getWMSImage(Envelope envelope, int width, int height)
throws ThinklabResourceNotFoundException {
BufferedImage ret = null;
initializeWms();
String sig = envelope.toString() + "," + width + "," + height;
if (_cache.containsKey(sig)) return ImageUtil.clone(_cache.get(sig));
if (_wms != null) {
GetMapRequest request = _wms.createGetMapRequest();
request.setFormat("image/png");
request.setDimensions("" + width, "" + height);
request.setTransparent(true);
// FIXME this assumes the envelope is in lat/lon
request.setSRS("EPSG:4326");
String bbox =
(float) envelope.getMinX()
+ ","
+ (float) envelope.getMinY()
+ ","
+ (float) envelope.getMaxX()
+ ","
+ (float) envelope.getMaxY();
request.setBBox(bbox);
for (Layer layer : getWMSLayers()) {
request.addLayer(layer);
}
GetMapResponse response = null;
try {
System.out.println(request.getFinalURL());
response = (GetMapResponse) _wms.issueRequest(request);
ret = ImageIO.read(response.getInputStream());
} catch (Exception e) {
Geospace.get().logger().warn("cannot get WFS imagery: " + e.getLocalizedMessage());
return null;
}
/*
* FIXME this obviously must have a limit
*/
if (ret != null) _cache.put(sig, ImageUtil.clone(ret));
}
return ret;
}
@SuppressWarnings("unchecked")
private void setImageFormat(WebMapServer wms, GetMapRequest request) {
List formats = wms.getCapabilities().getRequest().getGetMap().getFormats();
String str;
if (getPreferencesStore().getBoolean(PreferenceConstants.P_USE_DEFAULT_ORDER)) {
str = getPreferencesStore().getDefaultString(PreferenceConstants.P_IMAGE_TYPE_ORDER);
} else {
str = getPreferencesStore().getString(PreferenceConstants.P_IMAGE_TYPE_ORDER);
}
String[] preferredFormats = str.split(","); // $NON-NLS-1$
// Select one of the available formats from the WMS server
// the order of preferred formats is set in the preferences
for (String format : preferredFormats) {
if (formats.contains(format)) {
request.setProperty(GetMapRequest.FORMAT, format);
request.setTransparent(formatSupportsTransparency(format));
break;
}
}
}
public static void main(String[] args) {
URL url = null;
try {
url =
new URL(
// "http://www2.dmsolutions.ca/cgi-bin/mswms_gmap?VERSION=1.1.0&REQUEST=GetCapabilities");
"http://sigel.aneel.gov.br/arcgis/services/SIGEL/Geracao/MapServer/WMSServer?request=getcapabilities");
// "http://www2.sipam.gov.br/geoserver/wms?service=WMS&request=GetCapabilities");
} catch (MalformedURLException e) {
// will not happen
}
WebMapServer wms = null;
try {
wms = new WebMapServer(url);
WMSCapabilities capabilities = wms.getCapabilities();
String serverName = capabilities.getService().getName();
String serverTitle = capabilities.getService().getTitle();
System.out.println(
"Capabilities retrieved from server: " + serverName + " (" + serverTitle + ")");
System.out.println(capabilities.getService().getOnlineResource());
// gets the top most layer, which will contain all the others
Layer rootLayer = capabilities.getLayer();
System.out.println(rootLayer.getName());
System.out.println("===============");
Layer[] layers2 = WMSUtils.getNamedLayers(capabilities);
List<Layer> layers = capabilities.getLayerList();
CRSEnvelope env = null;
int i = 0;
for (Layer layer : layers2) {
i++;
System.out.println("Layer: (" + i + ")" + layer.getName());
System.out.println(" " + layer.getTitle());
System.out.println(" " + layer.getChildren().length);
System.out.println(" " + layer.getBoundingBoxes());
env = layer.getLatLonBoundingBox();
System.out.println(" " + env.getLowerCorner() + " x " + env.getUpperCorner());
List<String> formats = wms.getCapabilities().getRequest().getGetMap().getFormats();
System.out.println("formats: " + formats);
}
System.out.println("===============");
GetMapRequest request = wms.createGetMapRequest();
request.setFormat("image/png");
request.setDimensions(
"583", "420"); // sets the dimensions of the image to be returned from the server
request.setTransparent(true);
request.setSRS("EPSG:4326");
request.setBBox(env);
request.addLayer(layers.get(layers.size() - 1));
System.out.println(request.getFinalURL());
GetMapResponse response = (GetMapResponse) wms.issueRequest(request);
ImageIO.write(
ImageIO.read(response.getInputStream()),
"png",
new File("/Users/otos/development/projeto/demoiselle-spatial/tmp/file.png"));
System.out.println(request.getFinalURL());
} catch (IOException e) {
// There was an error communicating with the server
// For example, the server is down
} catch (ServiceException e) {
// The server returned a ServiceException (unusual in this case)
} catch (SAXException e) {
// Unable to parse the response from the server
// For example, the capabilities it returned was not valid
}
}