| /* |
| * 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.geometry.core.partitioning; |
| |
| import org.apache.commons.geometry.core.Point; |
| |
| /** Visitor computing the boundary size. |
| * @param <P> Point type defining the space |
| */ |
| class BoundarySizeVisitor<P extends Point<P>> implements BSPTreeVisitor<P> { |
| |
| /** Size of the boundary. */ |
| private double boundarySize; |
| |
| /** Simple constructor. |
| */ |
| BoundarySizeVisitor() { |
| boundarySize = 0; |
| } |
| |
| /** {@inheritDoc}*/ |
| @Override |
| public Order visitOrder(final BSPTree<P> node) { |
| return Order.MINUS_SUB_PLUS; |
| } |
| |
| /** {@inheritDoc}*/ |
| @Override |
| public void visitInternalNode(final BSPTree<P> node) { |
| @SuppressWarnings("unchecked") |
| final BoundaryAttribute<P> attribute = |
| (BoundaryAttribute<P>) node.getAttribute(); |
| if (attribute.getPlusOutside() != null) { |
| boundarySize += attribute.getPlusOutside().getSize(); |
| } |
| if (attribute.getPlusInside() != null) { |
| boundarySize += attribute.getPlusInside().getSize(); |
| } |
| } |
| |
| /** {@inheritDoc}*/ |
| @Override |
| public void visitLeafNode(final BSPTree<P> node) { |
| } |
| |
| /** Get the size of the boundary. |
| * @return size of the boundary |
| */ |
| public double getSize() { |
| return boundarySize; |
| } |
| |
| } |