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The OpenTripPlanner multimodal journey planning system

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package org.opentripplanner.service.worldenvelope;

import java.util.Optional;
import org.opentripplanner.service.worldenvelope.model.WorldEnvelope;

/**
 * This service provide information about the geographical bounding-box and center coordinates
 * for OTP. The information is computed once, based on static data and in the {@link WorldEnvelope}.
 */
public interface WorldEnvelopeService {
  /**
   * The envelope hold all information about the OTP street and transit geographical
   * bounding-box and center coordinates(two options).
   * 
   * If no envelope is created, this return empty.
   */
  Optional envelope();
}