import org.opengis.coverage.PointOutsideCoverageException; //导入依赖的package包/类
private Double getPointES(GridCoverage2D raster, Point point) {
    Double result = null;
    try {
        DirectPosition position = JTS.toDirectPosition(point.getCoordinate(), GeometryUtils.WGS_84_CRS);
        double[] resultArray = raster.evaluate(position, (double[]) null);
        if (resultArray[0] != RASTER_NO_DATA_VALUE) {
            result = resultArray[0];
        } else {
            LOGGER.debug(String.format(ES_NOT_FOUND_NO_DATA_MESSAGE, point.getX(), point.getY()));
        }
    } catch (PointOutsideCoverageException e) {
        // Ignore the exception - if the point is outside of the raster area, the result is null
        LOGGER.debug(String.format(ES_NOT_FOUND_OUTSIDE_AREA_MESSAGE, point.getX(), point.getY()));
    }
    return result;
}
 

import org.opengis.coverage.PointOutsideCoverageException; //导入依赖的package包/类
public Double getHeightAtCoordinate(Coordinate c) {

		try {

			float[] result = (float[]) coverage.evaluate(new DirectPosition2D(crs, c.x, c.y));

			return Double.valueOf(result[0]);
		} catch (PointOutsideCoverageException e) {
			return Double.NaN;
		}
	}
 

import org.opengis.coverage.PointOutsideCoverageException; //导入依赖的package包/类
@Override
public Set<Record> evaluate(
		final DirectPosition p,
		final Collection<String> list )
		throws PointOutsideCoverageException,
		CannotEvaluateException {
	return gridCoverage.evaluate(
			p,
			list);
}
 

import org.opengis.coverage.PointOutsideCoverageException; //导入依赖的package包/类
private Integer getElevationOnWgs84Point(GridCoverage2D searchGrid, double xCoordinate, double yCoordinate, boolean keepSearching) {

		Integer elevation = null;
		try {
			final int[] metadataAtPoint = (int[]) searchGrid.evaluate(new DirectPosition2D(DefaultGeographicCRS.WGS84, xCoordinate, yCoordinate));
			elevation = metadataAtPoint[0];
		} catch (final PointOutsideCoverageException e) {
			logger.debug("Cannot find elevation data for this point : " + xCoordinate + " , " + yCoordinate + " in grid " + searchGrid);
		}

		if (elevation == null && keepSearching) {
			for (final GridCoverage2D elevationGrid : gridsWithElevationData) {
				if (elevationGrid != null) {
					elevation = getElevationOnWgs84Point(elevationGrid, xCoordinate, yCoordinate, false);
					if (elevation != null) {
						break;
					}
				}

			}
			if (elevation == null) {
				throw new PointOutsideCoverageException("None of the GeoTifs contains data for coordinates " + xCoordinate + " , " + yCoordinate);
			}
		}

		return elevation;
	}
 

import org.opengis.coverage.PointOutsideCoverageException; //导入依赖的package包/类
@Override
public Double fetchElevation(Coordinate coord) throws DataUnavailableException {
	try {
		return super.fetchElevation(coord);
	} catch( PointOutsideCoverageException e) {
		// Can't interpolate at boundaries of tiles
		// Use nearest neighbor, which will leave a hard edge at tile boundaries
		return provider.fetchElevation(coord);
		// TODO Do manual interpolation or whatever GeoTools suggests
	}
}