谷歌地图平铺提供商(GeoServer和WMS)

我没有看你的代码,但我多年来一直在工作,所以这里是WMS瓷砖供应商类:

public abstract class WMSTileProvider extends UrlTileProvider {

// Web Mercator n/w corner of the map.
private static final double[] TILE_ORIGIN = { -20037508.34789244, 20037508.34789244 };
// array indexes for that data
private static final int ORIG_X = 0;
private static final int ORIG_Y = 1; // "

// Size of square world map in meters, using WebMerc projection.
private static final double MAP_SIZE = 20037508.34789244 * 2;

// array indexes for array to hold bounding boxes.
protected static final int MINX = 0;
protected static final int MAXX = 1;
protected static final int MINY = 2;
protected static final int MAXY = 3;

// cql filters
private String cqlString = "";

// Construct with tile size in pixels, normally 256, see parent class.
public WMSTileProvider(int x, int y) {
    super(x, y);
}

@SuppressWarnings("deprecation")
protected String getCql() {
    try {
        return URLEncoder.encode(cqlString, Charset.defaultCharset().name());
    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
        return URLEncoder.encode(cqlString);
    }
}

public void setCql(String c) {
    cqlString = c;
}

// Return a web Mercator bounding box given tile x/y indexes and a zoom
// level.
protected double[] getBoundingBox(int x, int y, int zoom) {
    double tileSize = MAP_SIZE / Math.pow(2, zoom);
    double minx = TILE_ORIGIN[ORIG_X] + x * tileSize;
    double maxx = TILE_ORIGIN[ORIG_X] + (x + 1) * tileSize;
    double miny = TILE_ORIGIN[ORIG_Y] - (y + 1) * tileSize;
    double maxy = TILE_ORIGIN[ORIG_Y] - y * tileSize;

    double[] bbox = new double[4];
    bbox[MINX] = minx;
    bbox[MINY] = miny;
    bbox[MAXX] = maxx;
    bbox[MAXY] = maxy;

    return bbox;
}
}

下面是我如何使用它的一些信息:

public static WMSTileProvider getWMSTileProviderByName(String layerName) {
        final String OSGEO_WMS = "http://yourserver/geoserver/gwc/service/wms/?"
                + "LAYERS=" + layerName
                + "&FORMAT=image/png8&"
                + "PROJECTION=EPSG:3857&"
                + "TILEORIGIN=lon=-20037508.34,lat=-20037508.34&"
                + "TILESIZE=w=256,h=256"
                + "&MAXEXTENT=-20037508.34,-20037508.34,20037508.34,20037508.34&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&SRS=EPSG:3857"
                + "&BBOX=%f,%f,%f,%f&WIDTH=256&HEIGHT=256";

        return new WMSTileProvider(256, 256) {

            @Override
            public synchronized URL getTileUrl(int x, int y, int zoom) {
                final double[] bbox = getBoundingBox(x, y, zoom);
                String s = String.format(Locale.US, OSGEO_WMS, bbox[MINX], bbox[MINY], bbox[MAXX], bbox[MAXY]);
                try {
                    return new URL(s);
                } catch (MalformedURLException e) {
                    throw new AssertionError(e);
                }
            }
        };
    }

不能给你更多的代码,但我希望能帮助你

编辑:有了评论,现在我明白你需要什么了。 这里是一些代码(旧的,但正在工作),你必须对此进行一些工作,这是一种黑客:

    private static final double[] TILES_ORIGIN = {-20037508.34789244, 20037508.34789244};//TODO Duplicate from WMS PROVIDER, put as utils
    // Size of square world map in meters, using WebMerc projection.
    private static final double MAP_SIZE = 20037508.34789244 * 2;//TODO Duplicate from WMS PROVIDER, put as utils
    private static final double ORIGIN_SHIFT = Math.PI * 6378137d;

/**
     * Transform the y map meter in y cordinate
     *
     * @param latitude the latitude of map
     * @return meters of y cordinate
     */
    private double inMetersYCoordinate(double latitude) {
        if (latitude < 0) {
            return -inMetersYCoordinate(-latitude);
        }
        return (Math.log(Math.tan((90d + latitude) * Math.PI / 360d)) / (Math.PI / 180d)) * ORIGIN_SHIFT / 180d;
    }

    /**
     * Transform the x map meter in x cordinate
     *
     * @param longitude the longitude of map
     * @return meters of x cordinate
     */
    private double inMetersXCoordinate(double longitude) {
        return longitude * ORIGIN_SHIFT / 180.0;
    }

/**
     * Get the Tile from x and y cordinates
     *
     * @param pointX    x of the map
     * @param pointY    y of the map
     * @param zoomLevel zoom of Tile
     * @return the relative TileDataInfo
     */
private TileDataInfo getTileByCoordinate(double pointX, double pointY, int zoomLevel) {
    final double tileDim = MAP_SIZE / Math.pow(2d, zoomLevel);

    final int tileX = (int) ((pointX - TILES_ORIGIN[0]) / tileDim);
    final int tileY = (int) ((TILES_ORIGIN[1] - pointY) / tileDim);

    return new TileDataInfo(tileX, tileY, zoomLevel);
}

private static class TileDataInfo {
    int tileX;
    int tileY;
    int tileZoom;

    public TileDataInfo(int tileX, int tileY, int tileZoom) {
        this.tileX = tileX;
        this.tileY = tileY;
        this.tileZoom = tileZoom;
    }

}

为了获得正确的代码,您必须使用“inMetersYCordinate”转换纬度(单位:米),使用“inmetersXCordinate)转换经度(单位:英寸),然后使用“getTileByCordinate(单位:厘米)”计算平铺x、y、z(i、j、缩放)