How to use

getBounds

method

in

org.geomajas.layer.tile.RasterTile

@Override
public List<RasterTile> getTiles(Bbox worldBounds) {
  List<RasterTile> result = new ArrayList<RasterTile>();
  for (RasterTile rasterTile : tiles.values()) {
    Bbox screenBounds = getScreenBounds(worldBounds);
    if (BboxService.intersects(screenBounds, rasterTile.getBounds())) {
      result.add(rasterTile);
    }
  }
  return result;
}

private boolean isYIndexUp(List<RasterTile> tiles) {
  RasterTile first = tiles.iterator().next();
  for (RasterTile tile : tiles) {
    if (tile.getCode().getY() > first.getCode().getY()) {
      return tile.getBounds().getY() > first.getBounds().getY();
    } else if (tile.getCode().getY() < first.getCode().getY()) {
      return tile.getBounds().getY() < first.getBounds().getY();
    }
  }
  return false;
}

protected void renderTile(RasterTile tile, Callback<String, String> callback) {
  HtmlImage image = htmlImageFactory.create(tile.getUrl(), tile.getBounds(), callback);
  container.add(image);
}

protected void renderTile(RasterTile tile, Callback<String, String> callback) {
  HtmlImage image = htmlImageFactory.create(tile.getUrl(), tile.getBounds(), callback);
  container.add(image);
}

private Bbox getWorldBounds(List<RasterTile> tiles) {
  Bbox bounds = null;
  for (RasterTile tile : tiles) {
    Bbox tileBounds = new Bbox(tile.getBounds().getX(), tile.getBounds().getY(), tile.getBounds().getWidth(),
        tile.getBounds().getHeight());
    if (bounds == null) {
      bounds = new Bbox(tileBounds.getX(), tileBounds.getY(), tileBounds.getWidth(), tileBounds.getHeight());
    } else {
      double minx = Math.min(tileBounds.getX(), bounds.getX());
      double maxx = Math.max(tileBounds.getMaxX(), bounds.getMaxX());
      double miny = Math.min(tileBounds.getY(), bounds.getY());
      double maxy = Math.max(tileBounds.getMaxY(), bounds.getMaxY());
      bounds = new Bbox(minx, miny, maxx - minx, maxy - miny);
    }
  }
  return bounds;
}

/**
 * Add image in the document.
 *
 * @param context PDF context
 * @param imageResult image
 * @throws BadElementException PDF construction problem
 * @throws IOException PDF construction problem
 */
protected void addImage(PdfContext context, ImageResult imageResult) throws BadElementException, IOException {
  Bbox imageBounds = imageResult.getRasterImage().getBounds();
  float scaleFactor = (float) (72 / getMap().getRasterResolution());
  float width = (float) imageBounds.getWidth() * scaleFactor;
  float height = (float) imageBounds.getHeight() * scaleFactor;
  // subtract screen position of lower-left corner
  float x = (float) (imageBounds.getX() - rasterScale * bbox.getMinX()) * scaleFactor;
  // shift y to lowerleft corner, flip y to user space and subtract
  // screen position of lower-left
  // corner
  float y = (float) (-imageBounds.getY() - imageBounds.getHeight() - rasterScale * bbox.getMinY()) * scaleFactor;
  if (log.isDebugEnabled()) {
    log.debug("adding image, width=" + width + ",height=" + height + ",x=" + x + ",y=" + y);
  }
  // opacity
  log.debug("before drawImage");
  context.drawImage(Image.getInstance(imageResult.getImage()), new Rectangle(x, y, x + width, y + height),
      getSize(), getOpacity());
  log.debug("after drawImage");
}

/**
 * Add image with a exception message in the PDF document.
 *
 * @param context PDF context
 * @param e exception to put in image
 */
protected void addLoadError(PdfContext context, ImageException e) {
  Bbox imageBounds = e.getRasterImage().getBounds();
  float scaleFactor = (float) (72 / getMap().getRasterResolution());
  float width = (float) imageBounds.getWidth() * scaleFactor;
  float height = (float) imageBounds.getHeight() * scaleFactor;
  // subtract screen position of lower-left corner
  float x = (float) (imageBounds.getX() - rasterScale * bbox.getMinX()) * scaleFactor;
  // shift y to lower left corner, flip y to user space and subtract
  // screen position of lower-left
  // corner
  float y = (float) (-imageBounds.getY() - imageBounds.getHeight() - rasterScale * bbox.getMinY()) * scaleFactor;
  if (log.isDebugEnabled()) {
    log.debug("adding failed message=" + width + ",height=" + height + ",x=" + x + ",y=" + y);
  }
  float textHeight = context.getTextSize("failed", ERROR_FONT).getHeight() * 3f;
  Rectangle rec = new Rectangle(x, y, x + width, y + height);
  context.strokeRectangle(rec, Color.RED, 0.5f);
  context.drawText(getNlsString("RasterLayerComponent.loaderror.line1"), ERROR_FONT, new Rectangle(x, y
      + textHeight, x + width, y + height), Color.RED);
  context.drawText(getNlsString("RasterLayerComponent.loaderror.line2"), ERROR_FONT, rec, Color.RED);
  context.drawText(getNlsString("RasterLayerComponent.loaderror.line3"), ERROR_FONT, new Rectangle(x, y
      - textHeight, x + width, y + height), Color.RED);
}