/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2011, Open Source Geospatial Foundation (OSGeo)
* (C) 2003-2005, Open Geospatial Consortium Inc.
*
* All Rights Reserved. http://www.opengis.org/legal/
*/
package org.opengis.geometry.coordinate;
import java.util.List;
import org.opengis.annotation.UML;
import static org.opengis.annotation.Obligation.*;
import static org.opengis.annotation.Specification.*;
/**
* A {@linkplain GriddedSurface gridded surface} that uses cubic polynomial splines as the
* horizontal and vertical curves. The initial tangents for the splines are often replaced
* by an extra pair of rows (and columns) of control points.
* <p>
* The horizontal and vertical curves require initial and final tangent vectors for a complete
* definition. These values are supplied by the four methods defined in this interface.
*
*
* @source $URL: http://svn.osgeo.org/geotools/trunk/modules/library/opengis/src/main/java/org/opengis/geometry/coordinate/BicubicGrid.java $
* @version <A HREF="http://www.opengeospatial.org/standards/as">ISO 19107</A>
* @author Martin Desruisseaux (IRD)
* @since GeoAPI 2.0
*/
@UML(identifier="GM_BicubicGrid", specification=ISO_19107)
public interface BicubicGrid extends GriddedSurface {
/**
* Returns the initial tangent vectors.
*/
@UML(identifier="horiVectorAtStart", obligation=MANDATORY, specification=ISO_19107)
List<double[]> getHorizontalVectorAtStart();
/**
* Returns the initial tangent vectors.
*/
@UML(identifier="horiVectorAtEnd", obligation=MANDATORY, specification=ISO_19107)
List<double[]> getHorizontalVectorAtEnd();
/**
* Returns the initial tangent vectors.
*/
@UML(identifier="vertVectorAtStart", obligation=MANDATORY, specification=ISO_19107)
List<double[]> getVerticalVectorAtStart();
/**
* Returns the initial tangent vectors.
*/
@UML(identifier="vertVectorAtEnd", obligation=MANDATORY, specification=ISO_19107)
List<double[]> getVerticalVectorAtEnd();
}