// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.data.projection.proj;
/**
* A {@link Proj} implements this interface, if it derives the central meridian
* value from it's other input parameters.
*
* (Normally the central meridian is projection input parameter and the Proj
* class does not deal with it.)
*
* @see Proj
* @since 9532 (creation)
* @since 10600 (functional interface)
*/
@FunctionalInterface
public interface ICentralMeridianProvider {
/**
* Get the central meridian value as computed during initialization.
* @return the central meridian in degrees
*/
double getCentralMeridian();
}