Application: gvSIG desktop » gvSIG geoprocess

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 */

package org.gvsig.geoprocess;

import java.util.Map;

import org.cresques.cts.IProjection;

/**

 * Manager for the GeoProcess API.

 * 

 * @author gvSIG Team

 * @version $Id$

 */

public interface GeoProcessManager {

    public static final double EARTH_RADIUS = 6378137d;

    /**

     * For computing with geodetic coordinates:

     * returns the angular measure (in radians)

     * for a distance over the earth along a

     * meridiam.

     * Because this consideration is an approximation,

     * we consideer the eart like an sphere (not an

     * ellipsoid)

     * 

     * @param dist

     *            distance in meters

     * @return arc of meridian whose length is the specified

     *         distance

     */

    double toSexaAngularMeasure(double dist);

    /**

     * Converts a distance entered by user in the GUI in the same distance

     * in internal units (measure units)

     */

    double getInInternalUnits(double userEntryDistance, IProjection proj,

        int distanceUnits, int mapUnits);

    /**

     * <p>

     * Gets the measurement unit used by this view port for the map.

     * </p>

     * 

     * @return Returns the current map measure unit

     */

    int getMapUnits();

    /**

     * <p>

     * Returns the measurement unit of this view port used for measuring

     * distances and displaying information.

     * </p>

     * 

     * @return the measurement unit of this view used for measuring distances

     *         and displaying information

     */

    int getDistanceUnits();

    void registerGeoProcess(Class<? extends GeoProcess> geoProcessClazz,

        Map<String, String> localeStrings);

}