mvt

test.java

List<Number[]> edgeList = isochrone.searchEdges(qr.getClosestNode());

            IGeometryFilter acceptAllGeomFilter = geometry -> true;
            // TODO: Your tile extent here
            Envelope tileEnvelope = new Envelope(0d, 100d, 0d, 100d);
            MvtLayerParams layerParams = new MvtLayerParams(); // Default extent
            GeometryFactory geometryFactory = new GeometryFactory();
            Geometry[] edgeListGeometry = new Geometry[edgeList.size()];
            for (int edgeCounter = 0; edgeCounter < edgeList.size(); edgeCounter++) {
                Number[] edge = edgeList.get(edgeCounter);
                edgeListGeometry[edgeCounter] = geometryFactory.createLineString(
                        new Coordinate[]{new Coordinate(edge[0].doubleValue(), edge[1].doubleValue()),
                                new Coordinate(edge[2].doubleValue(), edge[3].doubleValue())});
            }

            logger.info("start encoding: " + resultStr + ", edges:" + edgeListGeometry.length);
            TileGeomResult tileGeom = JtsAdapter.createTileGeom(
                    geometryFactory.createGeometryCollection(edgeListGeometry),
                    tileEnvelope,
                    geometryFactory,
                    layerParams,
                    acceptAllGeomFilter);

            VectorTile.Tile.Layer.Builder layerBuilder = MvtLayerBuild.newLayerBuilder("myLayerName", layerParams);
            MvtLayerProps layerProps = new MvtLayerProps();
            IUserDataConverter userDataConverter = new UserDataKeyValueMapConverter();
            List<VectorTile.Tile.Feature> features = JtsAdapter.toFeatures(tileGeom.mvtGeoms, layerProps, userDataConverter);
            MvtLayerBuild.writeProps(layerBuilder, layerProps);
            VectorTile.Tile mvt = VectorTile.Tile.newBuilder().addLayers(layerBuilder.addAllFeatures(features).build()).build();
            byte[] bytes = mvt.toByteArray();
            String tookStr = "" + sw.stop().getSeconds() * 1000;
            logger.info("took: " + tookStr);
            return Response.fromResponse(Response.ok(bytes, new MediaType("application", "octet-stream")).build())
                    .header("X-GH-Took", tookStr)
                    .build();