Examples with IUserDataConverter com.wdtinc.mapbox_vector_tile.adapt.jts.IUserDataConverter used on opensource projects

Example 1 with IUserDataConverter

use of com.wdtinc.mapbox_vector_tile.adapt.jts.IUserDataConverter in project geoprism-registry by terraframe.

the class VectorTileBuilder method writeVectorTiles.

protected byte[] writeVectorTiles(String layerName, Envelope envelope, ValueQuery query) throws IOException {
    OIterator<ValueObject> iterator = query.getIterator();
    try {
        List<Geometry> geometries = new LinkedList<Geometry>();
        while (iterator.hasNext()) {
            ValueObject object = iterator.next();
            AttributeGeometryIF attributeIF = (AttributeGeometryIF) object.getAttributeIF(GeoserverFacade.GEOM_COLUMN);
            Geometry geometry = attributeIF.getGeometry();
            geometry.setUserData(this.getUserData(object));
            geometries.add(geometry);
        }
        GeometryFactory geomFactory = new GeometryFactory();
        IGeometryFilter acceptAllGeomFilter = geometry -> true;
        MvtLayerParams layerParams = new MvtLayerParams();
        TileGeomResult tileGeom = JtsAdapter.createTileGeom(geometries, envelope, geomFactory, layerParams, acceptAllGeomFilter);
        final VectorTile.Tile.Builder tileBuilder = VectorTile.Tile.newBuilder();
        // Create MVT layer
        final MvtLayerProps layerProps = new MvtLayerProps();
        final IUserDataConverter ignoreUserData = new UserDataConverter();
        // MVT tile geometry to MVT features
        final List<VectorTile.Tile.Feature> features = JtsAdapter.toFeatures(tileGeom.mvtGeoms, layerProps, ignoreUserData);
        final VectorTile.Tile.Layer.Builder layerBuilder = MvtLayerBuild.newLayerBuilder(layerName, layerParams);
        layerBuilder.addAllFeatures(features);
        MvtLayerBuild.writeProps(layerBuilder, layerProps);
        // Build MVT layer
        final VectorTile.Tile.Layer layer = layerBuilder.build();
        // Add built layer to MVT
        tileBuilder.addLayers(layer);
        // / Build MVT
        Tile mvt = tileBuilder.build();
        return mvt.toByteArray();
    } finally {
        iterator.close();
    }
}

Example 2 with IUserDataConverter

use of com.wdtinc.mapbox_vector_tile.adapt.jts.IUserDataConverter in project geoprism-registry by terraframe.

the class VectorTileBuilder method writeVectorLayer.

public VectorTile.Tile.Layer writeVectorLayer(String layerName, Envelope bounds, ResultSet resultSet) throws IOException {
    try {
        List<Geometry> geometries = new LinkedList<Geometry>();
        while (resultSet.next()) {
            String label = resultSet.getString("default_locale");
            Map<String, String> data = new TreeMap<String, String>();
            data.put(GeoEntity.OID, resultSet.getString("oid"));
            data.put(DefaultAttribute.CODE.getName(), resultSet.getString("code"));
            data.put(DefaultAttribute.UID.getName(), resultSet.getString("uid"));
            data.put(GeoEntity.DISPLAYLABEL, label);
            for (Locale locale : locales) {
                try {
                    data.put(GeoEntity.DISPLAYLABEL + "_" + locale.toString().toLowerCase(), resultSet.getString(locale.toString()));
                } catch (PSQLException e) {
                // Ignore: The column doesn't exist because the list was created
                // before the locale was installed
                }
            }
            JtsGeometry geom = (JtsGeometry) resultSet.getObject(GeoserverFacade.GEOM_COLUMN);
            if (geom != null) {
                Geometry geometry = geom.getGeometry();
                geometry.setUserData(data);
                geometries.add(geometry);
            }
        }
        GeometryFactory geomFactory = new GeometryFactory();
        IGeometryFilter acceptAllGeomFilter = geometry -> true;
        MvtLayerParams layerParams = new MvtLayerParams();
        TileGeomResult tileGeom = JtsAdapter.createTileGeom(geometries, bounds, geomFactory, layerParams, acceptAllGeomFilter);
        // Create MVT layer
        final MvtLayerProps layerProps = new MvtLayerProps();
        final IUserDataConverter ignoreUserData = new UserDataConverter();
        // MVT tile geometry to MVT features
        final List<VectorTile.Tile.Feature> features = JtsAdapter.toFeatures(tileGeom.mvtGeoms, layerProps, ignoreUserData);
        final VectorTile.Tile.Layer.Builder layerBuilder = MvtLayerBuild.newLayerBuilder(layerName, layerParams);
        layerBuilder.addAllFeatures(features);
        MvtLayerBuild.writeProps(layerBuilder, layerProps);
        // Build MVT layer
        return layerBuilder.build();
    } catch (SQLException e) {
        throw new ProgrammingErrorException(e);
    }
}