Examples with BinaryMapDataObject net.osmand.binary.BinaryMapDataObject used on opensource projects

Example 41 with BinaryMapDataObject

use of net.osmand.binary.BinaryMapDataObject in project Osmand by osmandapp.

the class MapRenderRepositories method processCoastlines.

// / MULTI POLYGONS (coastline)
// returns true if coastlines were added!
private boolean processCoastlines(List<BinaryMapDataObject> coastLines, int leftX, int rightX, int bottomY, int topY, int zoom, boolean doNotAddIfIncompleted, boolean addDebugIncompleted, List<BinaryMapDataObject> result) {
    List<TLongList> completedRings = new ArrayList<TLongList>();
    List<TLongList> uncompletedRings = new ArrayList<TLongList>();
    MapIndex mapIndex = null;
    long dbId = 0;
    for (BinaryMapDataObject o : coastLines) {
        int len = o.getPointsLength();
        if (len < 2) {
            continue;
        }
        mapIndex = o.getMapIndex();
        dbId = o.getId() >> 1;
        TLongList coordinates = new TLongArrayList(o.getPointsLength() / 2);
        int px = o.getPoint31XTile(0);
        int py = o.getPoint31YTile(0);
        int x = px;
        int y = py;
        boolean pinside = leftX <= x && x <= rightX && y >= topY && y <= bottomY;
        if (pinside) {
            coordinates.add(combine2Points(x, y));
        }
        for (int i = 1; i < len; i++) {
            x = o.getPoint31XTile(i);
            y = o.getPoint31YTile(i);
            boolean inside = leftX <= x && x <= rightX && y >= topY && y <= bottomY;
            boolean lineEnded = calculateLineCoordinates(inside, x, y, pinside, px, py, leftX, rightX, bottomY, topY, coordinates);
            if (lineEnded) {
                combineMultipolygonLine(completedRings, uncompletedRings, coordinates);
                // create new line if it goes outside
                coordinates = new TLongArrayList();
            }
            px = x;
            py = y;
            pinside = inside;
        }
        combineMultipolygonLine(completedRings, uncompletedRings, coordinates);
    }
    if (completedRings.size() == 0 && uncompletedRings.size() == 0) {
        return false;
    }
    if (uncompletedRings.size() > 0) {
        unifyIncompletedRings(uncompletedRings, completedRings, leftX, rightX, bottomY, topY, dbId, zoom);
    }
    long mask = 0xffffffffL;
    // draw uncompleted for debug purpose
    for (int i = 0; i < uncompletedRings.size(); i++) {
        TLongList ring = uncompletedRings.get(i);
        int[] coordinates = new int[ring.size() * 2];
        for (int j = 0; j < ring.size(); j++) {
            coordinates[j * 2] = (int) (ring.get(j) >> 32);
            coordinates[j * 2 + 1] = (int) (ring.get(j) & mask);
        }
        BinaryMapDataObject o = new BinaryMapDataObject(dbId, coordinates, new int[0][], RenderingRulesStorage.POLYGON_RULES, true, new int[] { mapIndex.coastlineBrokenEncodingType }, null);
        o.setMapIndex(mapIndex);
        result.add(o);
    }
    if (!doNotAddIfIncompleted && uncompletedRings.size() > 0) {
        return false;
    }
    boolean clockwiseFound = false;
    for (int i = 0; i < completedRings.size(); i++) {
        TLongList ring = completedRings.get(i);
        int[] coordinates = new int[ring.size() * 2];
        for (int j = 0; j < ring.size(); j++) {
            coordinates[j * 2] = (int) (ring.get(j) >> 32);
            coordinates[j * 2 + 1] = (int) (ring.get(j) & mask);
        }
        boolean clockwise = MapAlgorithms.isClockwiseWay(ring);
        clockwiseFound = clockwiseFound || clockwise;
        BinaryMapDataObject o = new BinaryMapDataObject(dbId, coordinates, new int[0][], RenderingRulesStorage.POLYGON_RULES, true, new int[] { clockwise ? mapIndex.coastlineEncodingType : mapIndex.landEncodingType }, null);
        o.setMapIndex(mapIndex);
        o.setArea(true);
        result.add(o);
    }
    if (!clockwiseFound && uncompletedRings.size() == 0) {
        // add complete water tile
        BinaryMapDataObject o = new BinaryMapDataObject(dbId, new int[] { leftX, topY, rightX, topY, rightX, bottomY, leftX, bottomY, leftX, topY }, new int[0][], RenderingRulesStorage.POLYGON_RULES, true, new int[] { mapIndex.coastlineEncodingType }, null);
        o.setMapIndex(mapIndex);
        // $NON-NLS-1$
        log.info("!!! Isolated islands !!!");
        result.add(o);
    }
    return true;
}