private Map<String, Tile> checkTooManyTiles(
      ILayer layer,
      WMTSource wmtSource,
      WMTLayerProperties layerProperties,
      WMTRenderJob renderJob,
      Map<String, Tile> tileList) {
    int tilesCount = tileList.size();

    if (tilesCount > WMTRenderJob.getTileLimitWarning()) {
      // too many tiles, let's use the recommended zoom-level (if it wasn't already used)
      Boolean selectionAutomatic = layerProperties.getSelectionAutomatic();

      if ((selectionAutomatic != null) && (selectionAutomatic == false)) {
        tileList.clear();
        tileList =
            wmtSource.cutExtentIntoTiles(
                renderJob, WMTRenderJob.getScaleFactor(), true, layerProperties);
        tilesCount = tileList.size();
      }

      // show a warning about this
      layer.setStatus(ILayer.WARNING);
      layer.setStatusMessage(Messages.Render_Warning_TooManyTiles);

      WMTPlugin.trace("[BasicWMTRender.render] Set WARNING_TOO_MANY_TILES"); // $NON-NLS-1$
    }

    if (tilesCount > WMTRenderJob.getTileLimitError()) {
      // this is just too much, cancel
      WMTPlugin.trace("[BasicWMTRender.render] Set ERROR_TOO_MANY_TILES"); // $NON-NLS-1$

      return Collections.emptyMap();
    }

    return tileList;
  }
  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);
  }
Exemplo n.º 3
0
  @Override
  public void draw(MapGraphicContext context) {

    // Initialize
    ILayer graticule = context.getLayer();
    GraticuleStyle style = GraticuleStyle.getStyle(graticule);

    // Ensure CRS?
    if (graticule instanceof Layer) {
      // Initialize CRS?
      if (style.isInitCRS()) {
        // Only initialize once
        style.setInitCRS(false);
        // Apply CRS from context
        GraticuleCRSConfigurator.apply((Layer) graticule, context.getCRS());
      } else if (mismatch(graticule, style)) {
        // Apply CRS from
        GraticuleCRSConfigurator.apply((Layer) graticule, style.getCRS());
      }
    }

    // Sanity checks
    if (MAX_SCALE < context.getMap().getViewportModel().getScaleDenominator()) {
      graticule.setStatus(ILayer.ERROR);
      graticule.setStatusMessage(Messages.GraticuleGraphic_Maximum_Scale + MAX_SCALE);
      return;
    }
    Unit<?> unit = CRSUtilities.getUnit(graticule.getCRS().getCoordinateSystem());
    if (!SI.METER.equals(unit)) {
      graticule.setStatus(ILayer.ERROR);
      graticule.setStatusMessage(Messages.GraticuleGraphic_Illegal_CRS);
      return;
    }
    final IWorkbench workbench = PlatformUI.getWorkbench();
    if (workbench == null) return;

    // Start working on layer
    graticule.setStatus(ILayer.WORKING);
    graticule.setStatusMessage(null);

    // Get display to work on
    final Display display = workbench.getDisplay();

    // Set styles
    Font plain = GraticuleStyle.getFontStyle(context).getFont();
    Font bold = plain.deriveFont(Font.BOLD);

    // Initialize the graphics handle
    ViewportGraphics g = context.getGraphics();

    // Set font size
    g.setFont(bold);

    // Get bounds of viewport
    ReferencedEnvelope bounds = context.getViewportModel().getBounds();

    try {

      // Get square size limited to minimum size of 100 pixels
      double size = size(context, unit, 100);

      // Sanity check
      if (size < 100) return;

      // Convert square size to pixels
      int sx = (int) (size / context.getViewportModel().getPixelSize().x);
      int sy = (int) (size / context.getViewportModel().getPixelSize().y);

      // Make transform from Graticule to map CRS
      MathTransform transform = CRS.findMathTransform(graticule.getCRS(), context.getCRS(), false);

      // Transform bounds into Graticule CRS
      bounds = bounds.transform(graticule.getCRS(), true);

      // Get squares inside bounds
      SimpleFeatureIterator it = squares(bounds, size);

      // Draw one squares at the time (only top and left lines are drawn)
      while (it.hasNext()) {

        // Initialize states
        int i = 0;
        Point current = null;

        // Initialize lines
        List<Line> lines = new ArrayList<Line>(2);
        List<Label> labels = new ArrayList<Label>(2);

        // Get next geometry
        Geometry geom = (Geometry) it.next().getDefaultGeometry();

        // Get coordinates in graticule CRS
        Coordinate[] coords = geom.getCoordinates();

        // Get x-coordinate label from upper left corner
        String tx = getLabel(coords[0].x, size, unit, style);

        // Get y-coordinate label from lower left corner
        String ty = getLabel(coords[2].y, size, unit, style);

        // Insert gap with label?
        boolean vgap = isGap(tx, unit, style);
        boolean hgap = isGap(ty, unit, style);

        // Transform coordinates into Map CRS
        coords = JTS.transform(geom, transform).getCoordinates();

        // Create lines and labels for this square
        for (Coordinate c : coords) {

          // Build paths
          switch (i) {
            case 1:

              // -----------------------
              // Vertical line
              // -----------------------

              // Create line path
              current =
                  vert(
                      display,
                      g,
                      sy,
                      style.getLineWidth(),
                      current,
                      context.worldToPixel(c),
                      hgap,
                      vgap,
                      lines);

              // Add xx label?
              if (hgap) {
                labels.add(new Label(current, tx, vgap ? bold : plain));
                current = context.worldToPixel(c);
              }

              break;
            case 2:

              // -----------------------
              // Horizontal line
              // -----------------------

              // Create line path
              current =
                  horz(
                      display,
                      g,
                      sx,
                      style.getLineWidth(),
                      current,
                      context.worldToPixel(c),
                      vgap,
                      hgap,
                      lines);

              // Add yy label?
              if (vgap) {
                labels.add(new Label(current, ty, hgap ? bold : plain));
                current = context.worldToPixel(c);
              }

              break;

            default:
              current = context.worldToPixel(c);
              break;
          }
          i++;
        }

        // Draw lines
        for (Line line : lines) line.draw(g, style);

        // Draw labels?
        if (style.isShowLabels()) for (Label label : labels) label.draw(g, style);
      }

      // // Get lower left corner coordinates
      // int x = llc.x;
      // int y = llc.y;
      //
      // // Print borders
      // g.setColor(lc);
      // g.setStroke(ViewportGraphics.LINE_SOLID, 5);
      //
      // // Inner rectangle
      // g.drawRect(x + d + l, y + d + l, w - 2 * (d + l), h - 2 * (d + l));
      //
      // // Make white border
      // g.setColor(Color.WHITE);
      //
      // // Left
      // g.drawRect(x, y, d, h);
      // g.fillRect(x, y, d, h);
      //
      // // Bottom
      // g.drawRect(x, y, w, d);
      // g.fillRect(x, y, w, d);
      //
      // // Right
      // g.drawRect(x + w - d, y, d, h);
      // g.fillRect(x + w - d, y, d, h);
      //
      // // Top
      // g.drawRect(x, y + h - d, w, d);
      // g.fillRect(x, y + h - d, w, d);

    } catch (IOException ex) {
      MapGraphicPlugin.log(Messages.GraticuleGraphic_Error, ex);
    } catch (FactoryException ex) {
      MapGraphicPlugin.log(Messages.GraticuleGraphic_Error, ex);
    } catch (MismatchedDimensionException ex) {
      MapGraphicPlugin.log(Messages.GraticuleGraphic_Error, ex);
    } catch (TransformException ex) {
      MapGraphicPlugin.log(Messages.GraticuleGraphic_Error, ex);
    }

    // Finished working on layer
    graticule.setStatus(ILayer.DONE);
  }