private GridStyle getStyle(ILayer layer) {
GridStyle gridStyle = (GridStyle) layer.getStyleBlackboard().get(GridStyle.ID);
if (gridStyle == null) {
return GridStyle.DEFAULT_STYLE;
}
return gridStyle;
}
/**
* This example shows how to obtain a color.
*
* @param g
* @param monitor
* @throws RenderException
*/
public void render(Graphics2D g, IProgressMonitor monitor) throws RenderException {
if (monitor == null) monitor = new NullProgressMonitor();
CsvReader reader = null;
try {
ILayer layer = getContext().getLayer();
IGeoResource resource = layer.findGeoResource(CSV.class);
if (resource == null) return;
ReferencedEnvelope bounds = getRenderBounds();
monitor.subTask("connecting");
CSV csv = resource.resolve(CSV.class, null);
// LOOK UP STYLE
IStyleBlackboard style = layer.getStyleBlackboard();
Color color = (Color) style.get(ColorStyle.ID);
// DATA TO WORLD
CoordinateReferenceSystem dataCRS = layer.getCRS();
CoordinateReferenceSystem worldCRS = context.getCRS();
MathTransform dataToWorld = CRS.findMathTransform(dataCRS, worldCRS, false);
// DRAW FILE
monitor.beginTask("csv render", csv.getSize());
reader = csv.reader();
reader.readHeaders();
int nameIndex = reader.getIndex("name");
Coordinate worldLocation = new Coordinate();
while (reader.readRecord()) {
Point point = CSV.getPoint(reader);
Coordinate dataLocation = point.getCoordinate();
try {
JTS.transform(dataLocation, worldLocation, dataToWorld);
} catch (TransformException e) {
continue;
}
if (bounds != null && !bounds.contains(worldLocation)) {
continue; // optimize!
}
java.awt.Point p = getContext().worldToPixel(worldLocation);
g.setColor(color);
g.fillRect(p.x - 2, p.y - 2, 6, 6);
g.setColor(Color.BLACK);
String name = reader.get(nameIndex);
g.drawString(name, p.x + 15, p.y + 15);
monitor.worked(1);
if (monitor.isCanceled()) break;
}
} catch (IOException e) {
throw new RenderException(e); // rethrow any exceptions encountered
} catch (FactoryException e) {
throw new RenderException(e); // rethrow any exceptions encountered
} finally {
if (reader != null) reader.close();
monitor.done();
}
}
@SuppressWarnings("unchecked")
private void setFilter(WebMapServer wms, GetMapRequest request) {
Filter mapFilter = null;
Map<ILayer, Filter> filters = new HashMap<ILayer, Filter>();
List<ILayer> layers = getContext().getLayers();
for (ILayer layer : layers) {
Object layerFilter =
layer.getStyleBlackboard().get(ProjectBlackboardConstants.LAYER__DATA_QUERY);
Filter filter;
if (layerFilter instanceof Query) {
filter = (Filter) ((Query) layerFilter).getFilter();
} else if (layerFilter instanceof Filter) {
filter = (Filter) layerFilter;
} else {
filter = mapFilter;
}
if (filter != null && filter != Filter.INCLUDE) {
filters.put(layer, filter);
}
}
if (filters.isEmpty()) return;
StringBuilder builder = new StringBuilder();
HashMap hashMap = new HashMap();
for (Map.Entry<ILayer, Filter> entry : filters.entrySet()) {
if (entry.getValue() == null) builder.append('(');
try {
StringWriter writer = new StringWriter();
DocumentWriter.writeDocument(entry.getValue(), FilterSchema.getInstance(), writer, hashMap);
builder.append(writer.toString());
} catch (OperationNotSupportedException e) {
WMSPlugin.log(
"Error writing filter for layer: " + entry.getKey().getID(), e); // $NON-NLS-1$
builder.append("<Filter/>"); // $NON-NLS-1$
} catch (IOException e) {
// SHOULDN'T Happen I don't think...
assert false;
WMSPlugin.log(
"Error writing filter for layer: " + entry.getKey().getID(), e); // $NON-NLS-1$
builder.append("<Filter/>"); // $NON-NLS-1$
}
builder.append(')');
}
try {
String encode = URLEncoder.encode(builder.toString(), "UTF-8"); // $NON-NLS-1$
request.setVendorSpecificParameter("filter", encode); // $NON-NLS-1$
} catch (UnsupportedEncodingException e) {
// better not happen!
throw (RuntimeException) new RuntimeException().initCause(e);
}
}
@Override
public ReferencedEnvelope getExtent() {
ILayer processingRegionLayer = OmsBoxPlugin.getDefault().getProcessingRegionMapGraphic();
if (processingRegionLayer != null) {
IStyleBlackboard blackboard = processingRegionLayer.getStyleBlackboard();
ProcessingRegionStyle style =
(ProcessingRegionStyle) blackboard.get(ProcessingRegionStyleContent.ID);
if (style == null) {
style = ProcessingRegionStyleContent.createDefault();
}
ProcessingRegion processinRegion =
new ProcessingRegion(
style.west, style.east, style.south, style.north, style.rows, style.cols);
ReferencedEnvelope envelope = new ReferencedEnvelope(processinRegion.getEnvelope(), getCrs());
return envelope;
}
return null;
}
public synchronized void render(
Graphics2D destination, ReferencedEnvelope bounds, IProgressMonitor monitor)
throws RenderException {
int endLayerStatus = ILayer.DONE;
try {
if (bounds == null || bounds.isNull()) {
bounds = getContext().getImageBounds();
}
if (monitor.isCanceled()) return;
getContext().setStatus(ILayer.WAIT);
WebMapServer wms = getWMS();
GetMapRequest request = wms.createGetMapRequest();
// put in default exception format we understand as a client
// (if suppoted by the server)
WMSCapabilities capabilities = wms.getCapabilities();
if (capabilities
.getRequest()
.getGetMap()
.getFormats()
.contains(GetMapRequest.EXCEPTION_XML)) {
request.setExceptions(GetMapRequest.EXCEPTION_XML);
}
setImageFormat(wms, request);
if (monitor.isCanceled()) return;
double currScale = getContext().getViewportModel().getScaleDenominator();
List<ILayer> layers = getLayers();
for (int i = layers.size() - 1; i >= 0; i--) {
ILayer ilayer = layers.get(i);
Layer layer;
double minScale = 0;
double maxScale = Double.MAX_VALUE;
layer = ilayer.getResource(org.geotools.data.ows.Layer.class, null);
// check if there are min/max scale rules
StyleBlackboard sb = (StyleBlackboard) ilayer.getStyleBlackboard();
Style style = (Style) sb.lookup(Style.class);
if (style != null) {
Rule rule = style.getFeatureTypeStyles()[0].getRules()[0];
minScale = rule.getMinScaleDenominator();
maxScale = rule.getMaxScaleDenominator();
}
if (currScale >= minScale && currScale <= maxScale) {
// check for a wms style
StyleImpl wmsStyle =
(StyleImpl) ilayer.getStyleBlackboard().get(WMSStyleContent.WMSSTYLE);
if (wmsStyle != null) {
request.addLayer(layer, wmsStyle);
} else {
request.addLayer(layer);
}
}
}
if (monitor.isCanceled()) return;
List<Layer> wmsLayers = getWMSLayers();
if (wmsLayers == null || wmsLayers.isEmpty()) {
endLayerStatus = ILayer.WARNING;
return;
}
// figure out request CRS
String requestCRScode = findRequestCRS(wmsLayers, getViewportCRS(), getContext().getMap());
// TODO: make findRequestCRS more efficient (we are running CRS.decode at *least* twice)
CoordinateReferenceSystem requestCRS = CRS.decode(requestCRScode);
// figure out viewport
// ReferencedEnvelope viewport;
// Envelope viewportBBox = getViewportBBox();
// CoordinateReferenceSystem viewportCRS = getViewportCRS();
// if (viewportBBox == null) {
// // change viewport to world
// viewportBBox = new Envelope(-180, 180, -90, 90);
// if (!DefaultGeographicCRS.WGS84.equals(viewportCRS)) { // reproject
// viewport = new ReferencedEnvelope(viewportBBox,
// DefaultGeographicCRS.WGS84);
// viewportBBox = viewport.transform(viewportCRS, true);
// }
// }
ReferencedEnvelope requestBBox = null;
Envelope backprojectedBBox = null; // request bbox projected to the viewport crs
// viewport = new ReferencedEnvelope(viewportBBox, viewportCRS);
// requestBBox = calculateRequestBBox(wmsLayers, viewport, requestCRS);
requestBBox = calculateRequestBBox(wmsLayers, bounds, requestCRS, capabilities.getVersion());
// check that a request is needed (not out of a bounds, invalid, etc)
if (requestBBox == NILL_BOX) {
endLayerStatus = ILayer.WARNING;
return;
}
assert requestBBox.getCoordinateReferenceSystem().equals(requestCRS);
if (requestBBox.getCoordinateReferenceSystem().equals(getViewportCRS())) {
backprojectedBBox = (Envelope) requestBBox;
} else {
backprojectedBBox = (Envelope) requestBBox.transform(getViewportCRS(), true);
}
if (WMSPlugin.isDebugging(Trace.RENDER)) {
WMSPlugin.trace("Viewport CRS: " + getViewportCRS().getName()); // $NON-NLS-1$
WMSPlugin.trace("Request CRS: " + requestCRS.getName()); // $NON-NLS-1$
WMSPlugin.trace("Context Image bounds: " + getContext().getImageBounds()); // $NON-NLS-1$
WMSPlugin.trace("Request BBox bounds: " + requestBBox); // $NON-NLS-1$
WMSPlugin.trace("Backprojected request bounds: " + backprojectedBBox); // $NON-NLS-1$
}
Service wmsService = capabilities.getService();
Dimension maxDimensions = new Dimension(wmsService.getMaxWidth(), wmsService.getMaxHeight());
// Dimension imageDimensions =
// calculateImageDimensions(getContext().getMapDisplay()
// .getDisplaySize(), maxDimensions, getViewportBBox(), backprojectedBBox);
Dimension imageDimensions =
calculateImageDimensions(
getContext().getImageSize(), maxDimensions, bounds, backprojectedBBox);
if (imageDimensions.height < 1 || imageDimensions.width < 1) {
endLayerStatus = ILayer.WARNING;
return;
}
request.setDimensions(
imageDimensions.width + "", imageDimensions.height + ""); // $NON-NLS-1$ //$NON-NLS-2$
// epsg could be under identifiers or authority.
Set<ReferenceIdentifier> identifiers = requestCRS.getIdentifiers();
String srs = identifiers.isEmpty() ? EPSG_4326 : identifiers.iterator().next().toString();
request.setSRS(srs); // EPSG_4326
request.setBBox(requestBBox);
// request.setBBox(requestBBox.getMinX() + "," + requestBBox.getMinY()+ "," +
// requestBBox.getMaxX()+ "," + requestBBox.getMaxY());
if (monitor.isCanceled()) return;
setFilter(wms, request);
// request.setProperty("DACS_ACS", null);
BufferedImage image = readImage(wms, request, monitor);
if (monitor.isCanceled()) return;
if (image == null) {
Exception e = new RuntimeException(Messages.BasicWMSRenderer2_unable_to_decode_image);
throw wrapException(e);
}
// backprojectedBBox or viewportBBox
renderGridCoverage(destination, backprojectedBBox, imageDimensions, requestBBox, image);
} catch (Exception e) {
if (e instanceof RenderException) throw (RenderException) e;
throw new RenderException(e);
} finally {
getContext().setStatus(endLayerStatus);
if (endLayerStatus == ILayer.DONE) {
// clear the status message (rendering was successful)
getContext().setStatusMessage(null);
}
}
}
public void render(Graphics2D destination, Envelope bounds, IProgressMonitor monitor)
throws RenderException {
WMTPlugin.trace("[BasicWMTRender.render] is called"); // $NON-NLS-1$
if (monitor == null) {
monitor = new NullProgressMonitor();
}
monitor.beginTask("Render WMT", 100); // $NON-NLS-1$
setState(STARTING);
ILayer layer = null;
try {
layer = getContext().getLayer();
// assume everything will work fine
layer.setStatus(ILayer.DONE);
layer.setStatusMessage(""); // $NON-NLS-1$
WMTSource wmtSource = getWmtSourceFromLayer(layer);
if (wmtSource == null)
throw new UnsupportedOperationException(Messages.Render_Error_NoSource);
// Layer properties
WMTLayerProperties layerProperties =
new WMTLayerProperties((StyleBlackboard) layer.getStyleBlackboard());
// Get map extent, which should be drawn
ReferencedEnvelope mapExtent = getRenderBounds();
if (mapExtent == null) {
mapExtent = context.getViewportModel().getBounds();
}
// Scale
double scale = getContext().getViewportModel().getScaleDenominator();
WMTPlugin.trace("[BasicWMTRender.render] Scale: " + scale); // $NON-NLS-1$
WMTRenderJob renderJob = null;
try {
renderJob = WMTRenderJob.createRenderJob(mapExtent, scale, wmtSource);
} catch (Exception exc) {
throw new UnsupportedOperationException(Messages.Render_Error_Projection);
}
// Find tiles
Map<String, Tile> tileList =
wmtSource.cutExtentIntoTiles(
renderJob, WMTRenderJob.getScaleFactor(), false, layerProperties);
// if we have nothing to display, return
if (tileList.isEmpty()) {
throw new UnsupportedOperationException(Messages.Render_Error_NoData);
}
// check if this are too many tiles
if ((tileList = checkTooManyTiles(layer, wmtSource, layerProperties, renderJob, tileList))
.isEmpty()) {
throw new UnsupportedOperationException(Messages.Render_Error_TooManyTiles);
}
// Download and display tiles
// look up the preference for caching tiles on-disk or in
// memory and use the proper tilerange for that.
TileRange range = createTileRange(wmtSource, renderJob, tileList);
// create an empty raster symbolizer for rendering
RasterSymbolizer style = styleBuilder.createRasterSymbolizer();
// setup how much each tile is worth for the monitor work %
int tileCount = range.getTileCount();
int tileWorth = (tileCount / 100) * tileCount;
int thisid = 0;
if (testing) {
staticid++;
thisid = staticid;
}
// first render any tiles that are ready and render non-ready tiles with blank images
Map<String, Tile> tiles = range.getTiles();
Set<String> notRenderedTiles = new HashSet<String>();
Set<String> renderedTiles = new HashSet<String>();
renderReadyTiles(
destination,
monitor,
renderJob,
style,
tileWorth,
thisid,
tiles,
notRenderedTiles,
renderedTiles);
setState(RENDERING);
// if the tilerange is not already completed, then load
// the missing tiles
if (!notRenderedTiles.isEmpty()) {
renderNotRenderedTiles(
destination,
monitor,
renderJob,
range,
style,
tileWorth,
thisid,
notRenderedTiles,
renderedTiles);
}
if (testing) {
System.out.println("DONE!!!: " + thisid); // $NON-NLS-1$
}
} catch (UnsupportedOperationException doneExc) {
setDone(monitor);
layer.setStatus(ILayer.ERROR);
layer.setStatusMessage(doneExc.getMessage());
WMTPlugin.log("[BasicWMTRenderer.render] Error: ", doneExc); // $NON-NLS-1$
return;
} catch (CancellationException cancelExc) {
return;
} catch (Exception ex) {
WMTPlugin.log("[BasicWMTRenderer.render] Unexpected Error: ", ex); // $NON-NLS-1$
}
setDone(monitor);
}
public boolean canAddLayer(ILayer layer) {
if (!layer.hasResource(Layer.class)) return false;
try {
if (!layer
.findGeoResource(Layer.class)
.parent(ProgressManager.instance().get())
.equals(getRenderContext().getGeoResource().parent(ProgressManager.instance().get())))
return false;
} catch (IOException e2) {
return false;
}
double opacity = Double.NaN;
ICompositeRenderContext context1 = (ICompositeRenderContext) context;
IRenderContext[] contexts =
context1.getContexts().toArray(new IRenderContext[context1.getContexts().size()]);
Arrays.sort(contexts);
List<Layer> owsLayers = new ArrayList<Layer>();
IService currentService;
try {
owsLayers.add(layer.getResource(Layer.class, new NullProgressMonitor()));
currentService = layer.getResource(IService.class, null);
} catch (IOException e1) {
WMSPlugin.log("", e1); // $NON-NLS-1$
return false;
}
for (IRenderContext renderContext : contexts) {
ILayer previousLayer = renderContext.getLayer();
try {
owsLayers.add(previousLayer.getResource(Layer.class, new NullProgressMonitor()));
IService previousService = previousLayer.getResource(IService.class, null);
if (currentService != previousService) {
return false;
}
} catch (IOException e) {
WMSPlugin.log("Error while retrieving service.", e); // $NON-NLS-1$
return false;
}
if (BasicWMSRenderer2.findRequestCRS(owsLayers, context.getCRS(), context.getMap()) == null)
return false;
Style style = (Style) previousLayer.getStyleBlackboard().get(SLDContent.ID);
if (style != null) {
opacity = SLDs.rasterOpacity(SLDs.rasterSymbolizer(style));
}
}
Style style = (Style) layer.getStyleBlackboard().get(SLDContent.ID);
if (style == null && Double.isNaN(opacity)) {
return true;
}
double result = SLDs.rasterOpacity(SLDs.rasterSymbolizer(style));
if (result == opacity) {
return true;
}
return false;
}
