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Diffstat (limited to 'src/main/java/org/apache/commons/math3/analysis/interpolation/PiecewiseBicubicSplineInterpolator.java')
-rw-r--r-- | src/main/java/org/apache/commons/math3/analysis/interpolation/PiecewiseBicubicSplineInterpolator.java | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/main/java/org/apache/commons/math3/analysis/interpolation/PiecewiseBicubicSplineInterpolator.java b/src/main/java/org/apache/commons/math3/analysis/interpolation/PiecewiseBicubicSplineInterpolator.java new file mode 100644 index 0000000..826f328 --- /dev/null +++ b/src/main/java/org/apache/commons/math3/analysis/interpolation/PiecewiseBicubicSplineInterpolator.java @@ -0,0 +1,61 @@ +/* + * 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 ); + } +} |