Examples with OverviewMapDataSource uk.me.parabola.mkgmap.reader.overview.OverviewMapDataSource used on opensource projects

Example 1 with OverviewMapDataSource

use of uk.me.parabola.mkgmap.reader.overview.OverviewMapDataSource in project mkgmap by openstreetmap.

the class MapBuilder method makeMap.

/**
 * Main method to create the map, just calls out to several routines
 * that do the work.
 *
 * @param map The map.
 * @param src The map data.
 */
public void makeMap(Map map, LoadableMapDataSource src) {
    RGNFile rgnFile = map.getRgnFile();
    TREFile treFile = map.getTreFile();
    lblFile = map.getLblFile();
    NETFile netFile = map.getNetFile();
    DEMFile demFile = map.getDemFile();
    if (routeCenterBoundaryType != 0 && netFile != null && src instanceof MapperBasedMapDataSource) {
        for (RouteCenter rc : src.getRoadNetwork().getCenters()) {
            ((MapperBasedMapDataSource) src).addBoundaryLine(rc.getArea(), routeCenterBoundaryType, rc.reportSizes());
        }
    }
    if (mapInfo.isEmpty())
        getMapInfo();
    normalizeCountries(src);
    processCities(map, src);
    processRoads(map, src);
    processPOIs(map, src);
    processOverviews(map, src);
    processInfo(map, src);
    makeMapAreas(map, src);
    if (driveOnLeft == null) {
        // check if source gives info about driving side
        if (src instanceof MapperBasedMapDataSource) {
            driveOnLeft = ((MapperBasedMapDataSource) src).getDriveOnLeft();
        }
    }
    if (driveOnLeft == null)
        driveOnLeft = false;
    treFile.setDriveOnLeft(driveOnLeft);
    treFile.setLastRgnPos(rgnFile.position() - RGNHeader.HEADER_LEN);
    rgnFile.write();
    treFile.write(rgnFile.haveExtendedTypes());
    lblFile.write();
    lblFile.writePost();
    if (netFile != null) {
        RoadNetwork network = src.getRoadNetwork();
        netFile.setNetwork(network.getRoadDefs());
        NODFile nodFile = map.getNodFile();
        if (nodFile != null) {
            nodFile.setNetwork(network.getCenters(), network.getRoadDefs(), network.getBoundary());
            nodFile.setDriveOnLeft(driveOnLeft);
            nodFile.write();
        }
        netFile.write(lblFile.numCities(), lblFile.numZips());
        if (nodFile != null) {
            nodFile.writePost();
        }
        netFile.writePost(rgnFile.getWriter());
    }
    warnAbout3ByteImgRefs();
    if (demFile != null) {
        try {
            long t1 = System.currentTimeMillis();
            java.awt.geom.Area demArea = null;
            if (demPolygon != null) {
                Area bbox = src.getBounds();
                // the rectangle is a bit larger to avoid problems at tile boundaries
                Rectangle2D r = new Rectangle2D.Double(bbox.getMinLong() - 2, bbox.getMinLat() - 2, bbox.getWidth() + 4, bbox.getHeight() + 4);
                if (demPolygon.intersects(r) && !demPolygon.contains(r)) {
                    demArea = demPolygon;
                }
            }
            if (demArea == null && src instanceof OverviewMapDataSource) {
                Path2D demPoly = ((OverviewMapDataSource) src).getTileAreaPath();
                if (demPoly != null) {
                    demArea = new java.awt.geom.Area(demPoly);
                }
            }
            Area treArea = demFile.calc(src.getBounds(), demArea, pathToHGT, demDists, demOutsidePolygonHeight, demInterpolationMethod);
            map.setBounds(treArea);
            long t2 = System.currentTimeMillis();
            log.info("DEM file calculation for", map.getFilename(), "took", (t2 - t1), "ms");
            demFile.write();
        } catch (MapFailedException e) {
            log.error("exception while creating DEM file", e.getMessage());
            // TODO: better remove DEM file?
            throw new MapFailedException("DEM");
        }
    }
    treFile.writePost();
}

Example 2 with OverviewMapDataSource

use of uk.me.parabola.mkgmap.reader.overview.OverviewMapDataSource in project mkgmap by openstreetmap.

the class MapBuilder method makeMapAreas.

/**
 * Drive the map generation by stepping through the levels, generating the
 * subdivisions for the level and filling in the map elements that should
 * go into the area.
 *
 * This is fairly complex: you need to divide into subdivisions depending on
 * their size and the number of elements that will be contained.
 *
 * @param map The map.
 * @param src The data for the map.
 */
private void makeMapAreas(Map map, LoadableMapDataSource src) {
    // The top level has to cover the whole map without subdividing, so
    // do a special check to make sure.
    LevelInfo[] levels = null;
    if (src instanceof OverviewMapDataSource) {
        mergeLines = true;
        prepShapesForMerge(src.getShapes());
        mergeShapes = true;
        levels = src.mapLevels();
    } else {
        if (OverviewBuilder.isOverviewImg(map.getFilename())) {
            levels = src.overviewMapLevels();
        } else {
            levels = src.mapLevels();
        }
    }
    if (levels == null) {
        throw new ExitException("no info about levels available.");
    }
    LevelInfo levelInfo = levels[0];
    // If there is already a top level zoom, then we shouldn't add our own
    Subdivision topdiv;
    if (levelInfo.isTop()) {
        // There is already a top level definition.  So use the values from it and
        // then remove it from the levels definition.
        levels = Arrays.copyOfRange(levels, 1, levels.length);
        Zoom zoom = map.createZoom(levelInfo.getLevel(), levelInfo.getBits());
        topdiv = makeTopArea(src, map, zoom);
    } else {
        // We have to automatically create the definition for the top zoom level.
        int maxBits = getMaxBits(src);
        // decrease it so that it is less.
        if (levelInfo.getBits() <= maxBits)
            maxBits = levelInfo.getBits() - 1;
        // Create the empty top level
        Zoom zoom = map.createZoom(levelInfo.getLevel() + 1, maxBits);
        topdiv = makeTopArea(src, map, zoom);
    }
    // We start with one map data source.
    List<SourceSubdiv> srcList = Collections.singletonList(new SourceSubdiv(src, topdiv));
    // Now the levels filled with features.
    for (LevelInfo linfo : levels) {
        List<SourceSubdiv> nextList = new ArrayList<>();
        Zoom zoom = map.createZoom(linfo.getLevel(), linfo.getBits());
        for (SourceSubdiv srcDivPair : srcList) {
            MapSplitter splitter = new MapSplitter(srcDivPair.getSource(), zoom);
            MapArea[] areas = splitter.split(orderByDecreasingArea);
            log.info("Map region", srcDivPair.getSource().getBounds(), "split into", areas.length, "areas at resolution", zoom.getResolution());
            for (MapArea area : areas) {
                Subdivision parent = srcDivPair.getSubdiv();
                Subdivision div = makeSubdivision(map, parent, area, zoom);
                if (log.isDebugEnabled())
                    log.debug("ADD parent-subdiv", parent, srcDivPair.getSource(), ", z=", zoom, " new=", div);
                nextList.add(new SourceSubdiv(area, div));
            }
            if (nextList.size() > 0) {
                Subdivision lastdiv = nextList.get(nextList.size() - 1).getSubdiv();
                lastdiv.setLast(true);
            }
        }
        srcList = nextList;
    }
}