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Standard interfaces implemented throughout the library.

There is a newer version: 24.2-oss84-1

/*
 *    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 static org.opengis.annotation.Obligation.*;
import static org.opengis.annotation.Specification.*;

import java.util.List;
import org.opengis.annotation.UML;
import org.opengis.geometry.primitive.CurveSegment;

/**
 * Root for subtypes of {@linkplain CurveSegment curve segment} using some version of spline, either
 * polynomial or rational functions.
 *
 * @version ISO 19107
 * @author Martin Desruisseaux (IRD)
 * @since GeoAPI 2.0
 */
@UML(identifier = "GM_SplineCurve", specification = ISO_19107)
public interface SplineCurve extends CurveSegment {
    /**
     * The sequence of distinct knots used to define the spline basis functions. Recall that the
     * knot data type holds information on knot multiplicity.
     */
    @UML(identifier = "knot", obligation = MANDATORY, specification = ISO_19107)
    List getKnots();

    /**
     * The degree of the polynomial used for interpolation in a {@linkplain PolynomialSpline
     * polynomial spline}.
     */
    @UML(identifier = "degree", obligation = MANDATORY, specification = ISO_19107)
    int getDegree();

    /** An array of points that are used in the interpolation in this spline curve. */
    @UML(identifier = "controlPoints", obligation = MANDATORY, specification = ISO_19107)
    PointArray getControlPoints();
}