Ejemplo n.º 1
0
 private void tileMatrix(
     StringBuilder str,
     Grid grid,
     double[] tlCoordinates,
     int tileWidth,
     int tileHeight,
     boolean scaleWarning) {
   str.append("    <TileMatrix>\n");
   if (scaleWarning) {
     str.append(
         "      <ows:Abstract>The grid was not well-defined, the scale therefore assumes 1m per map unit.</ows:Abstract>");
   }
   str.append("      <ows:Identifier>" + grid.getName() + "</ows:Identifier>\n");
   str.append("      <ScaleDenominator>" + grid.getScaleDenominator() + "</ScaleDenominator>\n");
   str.append(
       "      <TopLeftCorner>" + tlCoordinates[0] + " " + tlCoordinates[1] + "</TopLeftCorner>\n");
   str.append("      <TileWidth>" + tileWidth + "</TileWidth>\n");
   str.append("      <TileHeight>" + tileHeight + "</TileHeight>\n");
   str.append("      <MatrixWidth>" + grid.getNumTilesWide() + "</MatrixWidth>\n");
   str.append("      <MatrixHeight>" + grid.getNumTilesHigh() + "</MatrixHeight>\n");
   str.append("    </TileMatrix>\n");
 }
Ejemplo n.º 2
0
  void addTileLayers(GeoPackage geopkg, List<MapLayerInfo> mapLayers, WMSMapContent map)
      throws IOException {

    if (mapLayers.isEmpty()) {
      return;
    }

    // figure out a name for the file entry
    String tileEntryName = null;
    Map formatOpts = map.getRequest().getFormatOptions();
    if (formatOpts.containsKey("tileset_name")) {
      tileEntryName = (String) formatOpts.get("tileset_name");
    }
    if (tileEntryName == null) {
      tileEntryName = map.getTitle();
    }
    if (tileEntryName == null && mapLayers.size() == 1) {
      Iterator<MapLayerInfo> it = mapLayers.iterator();
      tileEntryName = it.next().getLayerInfo().getName();
    }

    GridSubset gridSubset = findBestGridSubset(map);
    int[] minmax = findMinMaxZoom(gridSubset, map);

    BoundingBox bbox = bbox(map);

    TileEntry e = new TileEntry();
    e.setTableName(tileEntryName);

    if (mapLayers.size() == 1) {
      ResourceInfo r = mapLayers.get(0).getResource();
      e.setIdentifier(r.getTitle());
      e.setDescription(r.getAbstract());
    }
    e.setBounds(
        new ReferencedEnvelope(
            findTileBounds(gridSubset, bbox, minmax[0]), map.getCoordinateReferenceSystem()));
    e.setSrid(srid(map));

    GridSet gridSet = gridSubset.getGridSet();
    for (int z = minmax[0]; z < minmax[1]; z++) {
      Grid g = gridSet.getGrid(z);

      TileMatrix m = new TileMatrix();
      m.setZoomLevel(z);
      m.setMatrixWidth((int) g.getNumTilesWide());
      m.setMatrixHeight((int) g.getNumTilesHigh());
      m.setTileWidth(gridSubset.getTileWidth());
      m.setTileHeight(gridSubset.getTileHeight());

      // TODO: not sure about this
      m.setXPixelSize(g.getResolution());
      m.setYPixelSize(g.getResolution());
      // m.setXPixelSize(gridSet.getPixelSize());
      // m.setYPixelSize(gridSet.getPixelSize());

      e.getTileMatricies().add(m);
    }

    // figure out the actual bounds of the tiles to be renderered
    LOGGER.fine("Creating tile entry" + e.getTableName());
    geopkg.create(e);

    // create a prototype getmap request
    GetMapRequest req = new GetMapRequest();
    OwsUtils.copy(map.getRequest(), req, GetMapRequest.class);
    req.setLayers(mapLayers);

    String imageFormat =
        formatOpts.containsKey("format") ? parseFormatFromOpts(formatOpts) : findBestFormat(map);

    req.setFormat(imageFormat);
    req.setWidth(gridSubset.getTileWidth());
    req.setHeight(gridSubset.getTileHeight());

    // count tiles as we generate them
    int ntiles = 0;

    // flag determining if tile row indexes we store in database should be inverted
    boolean flipy = Boolean.valueOf((String) formatOpts.get("flipy"));
    for (int z = minmax[0]; z < minmax[1]; z++) {
      long[] intersect = gridSubset.getCoverageIntersection(z, bbox);
      for (long x = intersect[0]; x <= intersect[2]; x++) {
        for (long y = intersect[1]; y <= intersect[3]; y++) {
          BoundingBox box = gridSubset.boundsFromIndex(new long[] {x, y, z});
          req.setBbox(new Envelope(box.getMinX(), box.getMaxX(), box.getMinY(), box.getMaxY()));

          Tile t = new Tile();
          t.setZoom(z);
          t.setColumn((int) x);
          t.setRow((int) (flipy ? gridSubset.getNumTilesHigh(z) - (y + 1) : y));

          WebMap result = webMapService.getMap(req);
          t.setData(toBytes(result));

          geopkg.add(e, t);

          // images we encode are actually kept around, we need to clean them up
          if (ntiles++ == TILE_CLEANUP_INTERVAL) {
            cleanUpImages();
            ntiles = 0;
          }
        }
      }
    }
  }