use of de.fhg.igd.mapviewer.server.wms.capabilities.WMSCapabilitiesException in project hale by halestudio.
the class WMSTileOverlay method repaintTile.
/**
* @see AbstractTileOverlayPainter#repaintTile(int, int, int, int,
* PixelConverter, int)
*/
@Override
public BufferedImage repaintTile(int posX, int posY, int width, int height, PixelConverter converter, int zoom) {
// the first converter isn't regarded as a new converter because it's
// always the empty map
boolean isNewConverter = lastConverter != null && !converter.equals(lastConverter);
lastConverter = converter;
if (!converter.supportsBoundingBoxes()) {
if (isNewConverter) {
handleError(Messages.WMSTileOverlay_0 + configuration.getName() + Messages.WMSTileOverlay_1);
}
return null;
}
synchronized (this) {
if (capabilities == null) {
try {
capabilities = WMSUtil.getCapabilities(configuration.getBaseUrl());
} catch (WMSCapabilitiesException e) {
// $NON-NLS-1$
log.error("Error getting WMS capabilities");
}
}
}
if (capabilities != null) {
int mapEpsg = converter.getMapEpsg();
WMSBounds box;
synchronized (this) {
if (capabilities.getSupportedSRS().contains("EPSG:" + mapEpsg)) {
// $NON-NLS-1$
// same SRS supported
} else {
// SRS not supported
if (isNewConverter) {
StringBuilder message = new StringBuilder();
message.append(Messages.WMSTileOverlay_2);
message.append(configuration.getName());
message.append(Messages.WMSTileOverlay_3);
boolean init = true;
for (String srs : capabilities.getSupportedSRS()) {
if (init) {
init = false;
} else {
// $NON-NLS-1$
message.append(", ");
}
message.append(srs);
}
handleError(message.toString());
}
return null;
}
box = WMSUtil.getBoundingBox(capabilities, mapEpsg);
}
String srs = box.getSRS();
if (srs.startsWith("EPSG:")) {
// $NON-NLS-1$
// determine format
String format = null;
Iterator<String> itFormat = supportedFormats.iterator();
synchronized (this) {
while (format == null && itFormat.hasNext()) {
String supp = itFormat.next();
if (capabilities.getFormats().contains(supp)) {
format = supp;
}
}
}
if (format == null) {
// no compatible format
return null;
}
try {
// check if tile lies within the bounding box
int epsg = Integer.parseInt(srs.substring(5));
GeoPosition topLeft = converter.pixelToGeo(new Point(posX, posY), zoom);
GeoPosition bottomRight = converter.pixelToGeo(new Point(posX + width, posY + height), zoom);
// WMS bounding box
BoundingBox wms = new BoundingBox(box.getMinX(), box.getMinY(), -1, box.getMaxX(), box.getMaxY(), 1);
GeoConverter geotools = GeotoolsConverter.getInstance();
GeoPosition bbTopLeft = geotools.convert(topLeft, epsg);
GeoPosition bbBottomRight = geotools.convert(bottomRight, epsg);
double minX = Math.min(bbTopLeft.getX(), bbBottomRight.getX());
double minY = Math.min(bbTopLeft.getY(), bbBottomRight.getY());
double maxX = Math.max(bbTopLeft.getX(), bbBottomRight.getX());
double maxY = Math.max(bbTopLeft.getY(), bbBottomRight.getY());
BoundingBox tile = new BoundingBox(minX, minY, -1, maxX, maxY, 1);
// check if bounding box and tile overlap
if (wms.intersectsOrCovers(tile) || tile.covers(wms)) {
WMSBounds bounds;
if (epsg == mapEpsg) {
bounds = new WMSBounds(srs, minX, minY, maxX, maxY);
} else {
// determine bounds for request
minX = Math.min(topLeft.getX(), bottomRight.getX());
minY = Math.min(topLeft.getY(), bottomRight.getY());
maxX = Math.max(topLeft.getX(), bottomRight.getX());
maxY = Math.max(topLeft.getY(), bottomRight.getY());
// $NON-NLS-1$
bounds = new WMSBounds("EPSG:" + mapEpsg, minX, minY, maxX, maxY);
}
URI uri;
synchronized (this) {
uri = WMSUtil.getMapURI(capabilities, configuration, width, height, bounds, null, format, true);
}
Proxy proxy = ProxyUtil.findProxy(uri);
InputStream in = uri.toURL().openConnection(proxy).getInputStream();
BufferedImage image = GraphicsUtilities.loadCompatibleImage(in);
// apply transparency to the image
BufferedImage result = GraphicsUtilities.createCompatibleTranslucentImage(image.getWidth(), image.getHeight());
Graphics2D g = result.createGraphics();
try {
AlphaComposite ac = AlphaComposite.getInstance(AlphaComposite.SRC, 0.5f);
g.setComposite(ac);
g.drawImage(image, 0, 0, null);
} finally {
g.dispose();
}
return result;
}
} catch (Throwable e) {
// $NON-NLS-1$
log.warn("Error painting WMS overlay", e);
}
}
}
return null;
}
use of de.fhg.igd.mapviewer.server.wms.capabilities.WMSCapabilitiesException in project hale by halestudio.
the class SRSConfigurationPage method onShowPage.
/**
* @see WMSWizardPage#onShowPage()
*/
@Override
protected void onShowPage() {
// get last selection
ISelection selection = viewer.getSelection();
String lastSelection = null;
if (selection != null && selection instanceof IStructuredSelection) {
lastSelection = (String) ((IStructuredSelection) selection).getFirstElement();
}
// update input
String url = conf.getServiceURL();
List<String> input = new ArrayList<String>();
input.add(SRS_ANY);
try {
capabilities = WMSUtil.getCapabilities(url);
// }
for (String srs : capabilities.getSupportedSRS()) {
try {
// test if known
CRS.decode(srs);
input.add(srs);
} catch (Exception e) {
// ignore - unknown
}
}
} catch (WMSCapabilitiesException e) {
// ignore
}
viewer.setInput(input);
// update selection
if (lastSelection == null) {
// $NON-NLS-1$
String def = "EPSG:" + getConfiguration().getPreferredEpsg();
if (input.contains(def)) {
lastSelection = def;
} else {
lastSelection = SRS_ANY;
}
}
viewer.setSelection(new StructuredSelection(lastSelection));
}
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