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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.commons.math3.analysis.interpolation;
+
+import org.apache.commons.math3.exception.DimensionMismatchException;
+import org.apache.commons.math3.exception.NoDataException;
+import org.apache.commons.math3.exception.NonMonotonicSequenceException;
+import org.apache.commons.math3.exception.NullArgumentException;
+import org.apache.commons.math3.util.MathArrays;
+
+/**
+ * Generates a piecewise-bicubic interpolating function.
+ *
+ * @since 2.2
+ */
+public class PiecewiseBicubicSplineInterpolator
+ implements BivariateGridInterpolator {
+
+ /**
+ * {@inheritDoc}
+ */
+ public PiecewiseBicubicSplineInterpolatingFunction interpolate( final double[] xval,
+ final double[] yval,
+ final double[][] fval)
+ throws DimensionMismatchException,
+ NullArgumentException,
+ NoDataException,
+ NonMonotonicSequenceException {
+ if ( xval == null ||
+ yval == null ||
+ fval == null ||
+ fval[0] == null ) {
+ throw new NullArgumentException();
+ }
+
+ if ( xval.length == 0 ||
+ yval.length == 0 ||
+ fval.length == 0 ) {
+ throw new NoDataException();
+ }
+
+ MathArrays.checkOrder(xval);
+ MathArrays.checkOrder(yval);
+
+ return new PiecewiseBicubicSplineInterpolatingFunction( xval, yval, fval );
+ }
+}