Examples with PolygonSubdivSizeSplitterFilter uk.me.parabola.mkgmap.filters.PolygonSubdivSizeSplitterFilter used on opensource projects

Example 1 with PolygonSubdivSizeSplitterFilter

use of uk.me.parabola.mkgmap.filters.PolygonSubdivSizeSplitterFilter in project mkgmap by openstreetmap.

the class MapArea method addPolygons.

/**
 * Add the polygons
 * @param src The map data.
 * @param resolution The current resolution of the layer.
 */
private void addPolygons(MapDataSource src, final int resolution) {
    MapFilterChain chain = new MapFilterChain() {

        public void doFilter(MapElement element) {
            MapShape shape = (MapShape) element;
            addShape(shape);
        }
    };
    PolygonSubdivSizeSplitterFilter filter = new PolygonSubdivSizeSplitterFilter();
    FilterConfig config = new FilterConfig();
    config.setResolution(resolution);
    config.setBounds(bounds);
    filter.init(config);
    for (MapShape s : src.getShapes()) {
        if (s.getMaxResolution() < resolution)
            continue;
        if (splitPolygonsIntoArea || this.bounds.isEmpty() || this.bounds.contains(s.getBounds()))
            // if splitPolygonsIntoArea, don't want to have other splitting as well.
            // PolygonSubdivSizeSplitterFilter is a bit drastic - filters by both size and number of points
            // so use splitPolygonsIntoArea logic for this as well. This is fine as long as there
            // aren't bits of the shape outside the initial area.
            addShape(s);
        else
            filter.doFilter(s, chain);
    }
}