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Diffstat (limited to 'src/main/java/org/apache/commons/math3/geometry/partitioning/BoundaryProjection.java')
-rw-r--r-- | src/main/java/org/apache/commons/math3/geometry/partitioning/BoundaryProjection.java | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/main/java/org/apache/commons/math3/geometry/partitioning/BoundaryProjection.java b/src/main/java/org/apache/commons/math3/geometry/partitioning/BoundaryProjection.java new file mode 100644 index 0000000..03526e4 --- /dev/null +++ b/src/main/java/org/apache/commons/math3/geometry/partitioning/BoundaryProjection.java @@ -0,0 +1,83 @@ +/* + * 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.geometry.partitioning; + +import org.apache.commons.math3.geometry.Point; +import org.apache.commons.math3.geometry.Space; + +/** Class holding the result of point projection on region boundary. + * <p>This class is a simple placeholder, it does not provide any + * processing methods.</p> + * <p>Instances of this class are guaranteed to be immutable</p> + * @param <S> Type of the space. + * @since 3.3 + * @see AbstractRegion#projectToBoundary(Point) + */ +public class BoundaryProjection<S extends Space> { + + /** Original point. */ + private final Point<S> original; + + /** Projected point. */ + private final Point<S> projected; + + /** Offset of the point with respect to the boundary it is projected on. */ + private final double offset; + + /** Constructor from raw elements. + * @param original original point + * @param projected projected point + * @param offset offset of the point with respect to the boundary it is projected on + */ + public BoundaryProjection(final Point<S> original, final Point<S> projected, final double offset) { + this.original = original; + this.projected = projected; + this.offset = offset; + } + + /** Get the original point. + * @return original point + */ + public Point<S> getOriginal() { + return original; + } + + /** Projected point. + * @return projected point, or null if there are no boundary + */ + public Point<S> getProjected() { + return projected; + } + + /** Offset of the point with respect to the boundary it is projected on. + * <p> + * The offset with respect to the boundary is negative if the {@link + * #getOriginal() original point} is inside the region, and positive otherwise. + * </p> + * <p> + * If there are no boundary, the value is set to either {@code + * Double.POSITIVE_INFINITY} if the region is empty (i.e. all points are + * outside of the region) or {@code Double.NEGATIVE_INFINITY} if the region + * covers the whole space (i.e. all points are inside of the region). + * </p> + * @return offset of the point with respect to the boundary it is projected on + */ + public double getOffset() { + return offset; + } + +} |