kopia lustrzana https://github.com/onthegomap/planetiler
196 wiersze
7.6 KiB
Java
196 wiersze
7.6 KiB
Java
/*
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Copyright (c) 2016, KlokanTech.com & OpenMapTiles contributors.
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All rights reserved.
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Code license: BSD 3-Clause License
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* Neither the name of the copyright holder nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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Design license: CC-BY 4.0
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See https://github.com/openmaptiles/openmaptiles/blob/master/LICENSE.md for details on usage
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*/
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package com.onthegomap.flatmap.basemap.layers;
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import static com.onthegomap.flatmap.basemap.util.Utils.coalesce;
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import static com.onthegomap.flatmap.basemap.util.Utils.nullIf;
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import static com.onthegomap.flatmap.basemap.util.Utils.nullIfEmpty;
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import static com.onthegomap.flatmap.basemap.util.Utils.nullOrEmpty;
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import static java.util.Map.entry;
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import com.carrotsearch.hppc.LongIntHashMap;
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import com.carrotsearch.hppc.LongIntMap;
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import com.onthegomap.flatmap.FeatureCollector;
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import com.onthegomap.flatmap.VectorTile;
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import com.onthegomap.flatmap.basemap.BasemapProfile;
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import com.onthegomap.flatmap.basemap.generated.OpenMapTilesSchema;
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import com.onthegomap.flatmap.basemap.generated.Tables;
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import com.onthegomap.flatmap.basemap.util.LanguageUtils;
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import com.onthegomap.flatmap.config.FlatmapConfig;
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import com.onthegomap.flatmap.expression.MultiExpression;
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import com.onthegomap.flatmap.stats.Stats;
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import com.onthegomap.flatmap.util.Parse;
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import com.onthegomap.flatmap.util.Translations;
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import java.util.List;
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import java.util.Map;
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/**
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* Defines the logic for generating map elements for things like shops, parks, and schools in the {@code poi} layer from
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* source features.
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* <p>
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* This class is ported to Java from <a href="https://github.com/openmaptiles/openmaptiles/tree/master/layers/poi">OpenMapTiles
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* poi sql files</a>.
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*/
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public class Poi implements
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OpenMapTilesSchema.Poi,
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Tables.OsmPoiPoint.Handler,
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Tables.OsmPoiPolygon.Handler,
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BasemapProfile.FeaturePostProcessor {
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/*
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* process() creates the raw POI feature from OSM elements and postProcess()
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* assigns the feature rank from order in the tile at render-time.
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*/
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private static final Map<String, Integer> CLASS_RANKS = Map.ofEntries(
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entry(FieldValues.CLASS_HOSPITAL, 20),
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entry(FieldValues.CLASS_RAILWAY, 40),
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entry(FieldValues.CLASS_BUS, 50),
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entry(FieldValues.CLASS_ATTRACTION, 70),
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entry(FieldValues.CLASS_HARBOR, 75),
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entry(FieldValues.CLASS_COLLEGE, 80),
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entry(FieldValues.CLASS_SCHOOL, 85),
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entry(FieldValues.CLASS_STADIUM, 90),
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entry("zoo", 95),
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entry(FieldValues.CLASS_TOWN_HALL, 100),
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entry(FieldValues.CLASS_CAMPSITE, 110),
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entry(FieldValues.CLASS_CEMETERY, 115),
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entry(FieldValues.CLASS_PARK, 120),
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entry(FieldValues.CLASS_LIBRARY, 130),
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entry("police", 135),
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entry(FieldValues.CLASS_POST, 140),
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entry(FieldValues.CLASS_GOLF, 150),
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entry(FieldValues.CLASS_SHOP, 400),
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entry(FieldValues.CLASS_GROCERY, 500),
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entry(FieldValues.CLASS_FAST_FOOD, 600),
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entry(FieldValues.CLASS_CLOTHING_STORE, 700),
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entry(FieldValues.CLASS_BAR, 800)
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);
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private final MultiExpression.Index<String> classMapping;
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private final Translations translations;
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public Poi(Translations translations, FlatmapConfig config, Stats stats) {
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this.classMapping = FieldMappings.Class.index();
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this.translations = translations;
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}
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static int poiClassRank(String clazz) {
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return CLASS_RANKS.getOrDefault(clazz, 1_000);
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}
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private String poiClass(String subclass, String mappingKey) {
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subclass = coalesce(subclass, "");
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return classMapping.getOrElse(Map.of(
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"subclass", subclass,
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"mapping_key", coalesce(mappingKey, "")
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), subclass);
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}
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private int minzoom(String subclass, String mappingKey) {
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boolean lowZoom = ("station".equals(subclass) && "railway".equals(mappingKey)) ||
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"halt".equals(subclass) || "ferry_terminal".equals(subclass);
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return lowZoom ? 12 : 14;
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}
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@Override
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public void process(Tables.OsmPoiPoint element, FeatureCollector features) {
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// TODO handle uic_ref => agg_stop
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setupPoiFeature(element, features.point(LAYER_NAME));
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}
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@Override
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public void process(Tables.OsmPoiPolygon element, FeatureCollector features) {
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setupPoiFeature(element, features.centroidIfConvex(LAYER_NAME));
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}
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private <T extends
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Tables.WithSubclass &
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Tables.WithStation &
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Tables.WithFunicular &
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Tables.WithSport &
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Tables.WithInformation &
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Tables.WithReligion &
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Tables.WithMappingKey &
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Tables.WithName &
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Tables.WithIndoor &
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Tables.WithLayer &
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Tables.WithSource>
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void setupPoiFeature(T element, FeatureCollector.Feature output) {
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String rawSubclass = element.subclass();
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if ("station".equals(rawSubclass) && "subway".equals(element.station())) {
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rawSubclass = "subway";
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}
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if ("station".equals(rawSubclass) && "yes".equals(element.funicular())) {
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rawSubclass = "halt";
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}
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String subclass = switch (rawSubclass) {
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case "information" -> nullIfEmpty(element.information());
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case "place_of_worship" -> nullIfEmpty(element.religion());
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case "pitch" -> nullIfEmpty(element.sport());
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default -> rawSubclass;
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};
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String poiClass = poiClass(rawSubclass, element.mappingKey());
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int poiClassRank = poiClassRank(poiClass);
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int rankOrder = poiClassRank + ((nullOrEmpty(element.name())) ? 2000 : 0);
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output.setBufferPixels(BUFFER_SIZE)
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.setAttr(Fields.CLASS, poiClass)
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.setAttr(Fields.SUBCLASS, subclass)
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.setAttr(Fields.LAYER, nullIf(element.layer(), 0))
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.setAttr(Fields.LEVEL, Parse.parseLongOrNull(element.source().getTag("level")))
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.setAttr(Fields.INDOOR, element.indoor() ? 1 : null)
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.putAttrs(LanguageUtils.getNames(element.source().tags(), translations))
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.setPointLabelGridPixelSize(14, 64)
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.setSortKey(rankOrder)
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.setMinZoom(minzoom(element.subclass(), element.mappingKey()));
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}
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@Override
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public List<VectorTile.Feature> postProcess(int zoom, List<VectorTile.Feature> items) {
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// infer the "rank" field from the order of features within each label grid square
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LongIntMap groupCounts = new LongIntHashMap();
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for (VectorTile.Feature feature : items) {
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int gridrank = groupCounts.getOrDefault(feature.group(), 1);
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groupCounts.put(feature.group(), gridrank + 1);
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if (!feature.attrs().containsKey(Fields.RANK)) {
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feature.attrs().put(Fields.RANK, gridrank);
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}
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}
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return items;
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}
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}
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