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The NetCDF-Java Library is a Java interface to NetCDF files, as well as to many other types of scientific data formats.
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/*
 * Copyright 1998-2014 University Corporation for Atmospheric Research/Unidata
 *
 *   Portions of this software were developed by the Unidata Program at the
 *   University Corporation for Atmospheric Research.
 *
 *   Access and use of this software shall impose the following obligations
 *   and understandings on the user. The user is granted the right, without
 *   any fee or cost, to use, copy, modify, alter, enhance and distribute
 *   this software, and any derivative works thereof, and its supporting
 *   documentation for any purpose whatsoever, provided that this entire
 *   notice appears in all copies of the software, derivative works and
 *   supporting documentation.  Further, UCAR requests that the user credit
 *   UCAR/Unidata in any publications that result from the use of this
 *   software or in any product that includes this software. The names UCAR
 *   and/or Unidata, however, may not be used in any advertising or publicity
 *   to endorse or promote any products or commercial entity unless specific
 *   written permission is obtained from UCAR/Unidata. The user also
 *   understands that UCAR/Unidata is not obligated to provide the user with
 *   any support, consulting, training or assistance of any kind with regard
 *   to the use, operation and performance of this software nor to provide
 *   the user with any updates, revisions, new versions or "bug fixes."
 *
 *   THIS SOFTWARE IS PROVIDED BY UCAR/UNIDATA "AS IS" AND ANY EXPRESS OR
 *   IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 *   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 *   DISCLAIMED. IN NO EVENT SHALL UCAR/UNIDATA BE LIABLE FOR ANY SPECIAL,
 *   INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
 *   FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
 *   NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
 *   WITH THE ACCESS, USE OR PERFORMANCE OF THIS SOFTWARE.
 */
package ucar.nc2.ft;

import ucar.ma2.StructureData;
import ucar.nc2.units.DateRange;

import java.io.IOException;

/**
 * A set of observations along a 1 dimensional path, connected in space and time.
 * The observations are ordered in time (in other words, the time dimension must
 * increase monotonically along the trajectory).
 *
 * @author edavis
 * @author caron
 */
public interface TrajectoryFeature extends PointFeatureCollection {

  /**
    * The number of points along the trajectory. May not be known until after iterating through the collection.
    * @return number of points along the trajectory, or -1 if not known.
    */
   public int size();

  /**
   * DateRange for the points along the trajectory. May not be known until after iterating through the collection.
   * @return stating date for the trajectory, or null if not known
   */
  public DateRange getDateRange();

  /**
   * BoundingBox for the trajectory. May not be known until after iterating through the collection.
   * @return BoundingBox for the trajectory, or null if not known.
   */
  public ucar.unidata.geoloc.LatLonRect getBoundingBox();

  /**
   * The actual data of just this feature.
   * @return the actual data of this feature.
   * @throws java.io.IOException on i/o error
   */
  public StructureData getFeatureData() throws IOException;

}