| /* |
| * 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.bsp; |
| |
| import java.util.stream.StreamSupport; |
| |
| import org.apache.commons.geometry.core.partition.test.PartitionTestUtils; |
| import org.apache.commons.geometry.core.partition.test.TestLine; |
| import org.apache.commons.geometry.core.partition.test.TestPoint2D; |
| import org.apache.commons.geometry.core.partitioning.bsp.AttributeBSPTree.AttributeNode; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| public class AbstractBSPTreeMergeOperatorTest { |
| |
| @Test |
| public void testMerge_singleNodeTreeWithSingleNodeTree() { |
| // arrange |
| AttributeBSPTree<TestPoint2D, String> a = new AttributeBSPTree<>(); |
| a.getRoot().setAttribute("A"); |
| |
| AttributeBSPTree<TestPoint2D, String> b = new AttributeBSPTree<>(); |
| b.getRoot().setAttribute("B"); |
| |
| AttributeBSPTree<TestPoint2D, String> c = new AttributeBSPTree<>(); |
| |
| TestMergeOperator mergeOp = new TestMergeOperator(); |
| |
| // act |
| mergeOp.apply(a, b, c); |
| |
| // assert |
| Assert.assertEquals(1, a.count()); |
| Assert.assertEquals(1, b.count()); |
| Assert.assertEquals(1, c.count()); |
| |
| Assert.assertEquals("A", a.findNode(new TestPoint2D(0, 1)).getAttribute()); |
| Assert.assertEquals("A", a.findNode(new TestPoint2D(0, -1)).getAttribute()); |
| |
| Assert.assertEquals("B", b.findNode(new TestPoint2D(0, 1)).getAttribute()); |
| Assert.assertEquals("B", b.findNode(new TestPoint2D(0, -1)).getAttribute()); |
| |
| Assert.assertEquals("AB", c.findNode(new TestPoint2D(1, 1)).getAttribute()); |
| Assert.assertEquals("AB", c.findNode(new TestPoint2D(-1, 1)).getAttribute()); |
| Assert.assertEquals("AB", c.findNode(new TestPoint2D(-1, -1)).getAttribute()); |
| Assert.assertEquals("AB", c.findNode(new TestPoint2D(1, -1)).getAttribute()); |
| |
| PartitionTestUtils.assertTreeStructure(a); |
| PartitionTestUtils.assertTreeStructure(b); |
| PartitionTestUtils.assertTreeStructure(c); |
| } |
| |
| @Test |
| public void testMerge_singleNodeTreeWithMultiNodeTree() { |
| // arrange |
| AttributeBSPTree<TestPoint2D, String> a = new AttributeBSPTree<>(); |
| a.getRoot().cut(TestLine.X_AXIS) |
| .getPlus().attr("A") |
| .getParent() |
| .getMinus().attr("a"); |
| |
| AttributeBSPTree<TestPoint2D, String> b = new AttributeBSPTree<>(); |
| b.getRoot().setAttribute("B"); |
| |
| AttributeBSPTree<TestPoint2D, String> c = new AttributeBSPTree<>(); |
| |
| TestMergeOperator mergeOp = new TestMergeOperator(); |
| |
| // act |
| mergeOp.apply(a, b, c); |
| |
| // assert |
| Assert.assertEquals(3, a.count()); |
| Assert.assertEquals(1, b.count()); |
| Assert.assertEquals(3, c.count()); |
| |
| Assert.assertEquals("a", a.findNode(new TestPoint2D(0, 1)).getAttribute()); |
| Assert.assertEquals("A", a.findNode(new TestPoint2D(0, -1)).getAttribute()); |
| |
| Assert.assertEquals("B", b.findNode(new TestPoint2D(0, 1)).getAttribute()); |
| Assert.assertEquals("B", b.findNode(new TestPoint2D(0, -1)).getAttribute()); |
| |
| Assert.assertEquals("Ba", c.findNode(new TestPoint2D(1, 1)).getAttribute()); |
| Assert.assertEquals("Ba", c.findNode(new TestPoint2D(-1, 1)).getAttribute()); |
| Assert.assertEquals("BA", c.findNode(new TestPoint2D(-1, -1)).getAttribute()); |
| Assert.assertEquals("BA", c.findNode(new TestPoint2D(1, -1)).getAttribute()); |
| |
| PartitionTestUtils.assertTreeStructure(a); |
| PartitionTestUtils.assertTreeStructure(b); |
| PartitionTestUtils.assertTreeStructure(c); |
| } |
| |
| @Test |
| public void testMerge_multiNodeTreeWithSingleNodeTree() { |
| // arrange |
| AttributeBSPTree<TestPoint2D, String> a = new AttributeBSPTree<>(); |
| a.getRoot().setAttribute("A"); |
| |
| AttributeBSPTree<TestPoint2D, String> b = new AttributeBSPTree<>(); |
| b.getRoot().cut(TestLine.X_AXIS) |
| .getPlus().attr("B") |
| .getParent() |
| .getMinus().attr("b"); |
| |
| AttributeBSPTree<TestPoint2D, String> c = new AttributeBSPTree<>(); |
| |
| TestMergeOperator mergeOp = new TestMergeOperator(); |
| |
| // act |
| mergeOp.apply(a, b, c); |
| |
| // assert |
| Assert.assertEquals(1, a.count()); |
| Assert.assertEquals(3, b.count()); |
| Assert.assertEquals(3, c.count()); |
| |
| Assert.assertEquals("A", a.findNode(new TestPoint2D(0, 1)).getAttribute()); |
| Assert.assertEquals("A", a.findNode(new TestPoint2D(0, -1)).getAttribute()); |
| |
| Assert.assertEquals("b", b.findNode(new TestPoint2D(0, 1)).getAttribute()); |
| Assert.assertEquals("B", b.findNode(new TestPoint2D(0, -1)).getAttribute()); |
| |
| Assert.assertEquals("Ab", c.findNode(new TestPoint2D(1, 1)).getAttribute()); |
| Assert.assertEquals("Ab", c.findNode(new TestPoint2D(-1, 1)).getAttribute()); |
| Assert.assertEquals("AB", c.findNode(new TestPoint2D(-1, -1)).getAttribute()); |
| Assert.assertEquals("AB", c.findNode(new TestPoint2D(1, -1)).getAttribute()); |
| |
| PartitionTestUtils.assertTreeStructure(a); |
| PartitionTestUtils.assertTreeStructure(b); |
| PartitionTestUtils.assertTreeStructure(c); |
| } |
| |
| @Test |
| public void testMerge_cutsIntersect() { |
| // arrange |
| AttributeBSPTree<TestPoint2D, String> a = new AttributeBSPTree<>(); |
| a.getRoot().cut(TestLine.X_AXIS) |
| .getPlus().attr("A") |
| .getParent() |
| .getMinus().attr("a"); |
| |
| AttributeBSPTree<TestPoint2D, String> b = new AttributeBSPTree<>(); |
| b.getRoot().cut(TestLine.Y_AXIS) |
| .getPlus().attr("B") |
| .getParent() |
| .getMinus().attr("b"); |
| |
| AttributeBSPTree<TestPoint2D, String> c = new AttributeBSPTree<>(); |
| |
| TestMergeOperator mergeOp = new TestMergeOperator(); |
| |
| // act |
| mergeOp.apply(a, b, c); |
| |
| // assert |
| Assert.assertEquals(3, a.count()); |
| Assert.assertEquals(3, b.count()); |
| Assert.assertEquals(7, c.count()); |
| |
| Assert.assertEquals("a", a.findNode(new TestPoint2D(0, 1)).getAttribute()); |
| Assert.assertEquals("A", a.findNode(new TestPoint2D(0, -1)).getAttribute()); |
| |
| Assert.assertEquals("B", b.findNode(new TestPoint2D(1, 0)).getAttribute()); |
| Assert.assertEquals("b", b.findNode(new TestPoint2D(-1, 0)).getAttribute()); |
| |
| Assert.assertEquals("aB", c.findNode(new TestPoint2D(1, 1)).getAttribute()); |
| Assert.assertEquals("ab", c.findNode(new TestPoint2D(-1, 1)).getAttribute()); |
| Assert.assertEquals("Ab", c.findNode(new TestPoint2D(-1, -1)).getAttribute()); |
| Assert.assertEquals("AB", c.findNode(new TestPoint2D(1, -1)).getAttribute()); |
| |
| PartitionTestUtils.assertTreeStructure(a); |
| PartitionTestUtils.assertTreeStructure(b); |
| PartitionTestUtils.assertTreeStructure(c); |
| } |
| |
| @Test |
| public void testMerge_cutsParallel() { |
| // arrange |
| AttributeBSPTree<TestPoint2D, String> a = new AttributeBSPTree<>(); |
| a.getRoot().cut(TestLine.X_AXIS) |
| .getPlus().attr("A") |
| .getParent() |
| .getMinus().attr("a"); |
| |
| AttributeBSPTree<TestPoint2D, String> b = new AttributeBSPTree<>(); |
| b.getRoot().cut(TestLine.X_AXIS) |
| .getPlus().attr("B") |
| .getParent() |
| .getMinus().attr("b"); |
| |
| AttributeBSPTree<TestPoint2D, String> c = new AttributeBSPTree<>(); |
| |
| TestMergeOperator mergeOp = new TestMergeOperator(); |
| |
| // act |
| mergeOp.apply(a, b, c); |
| |
| // assert |
| Assert.assertEquals(3, a.count()); |
| Assert.assertEquals(3, b.count()); |
| Assert.assertEquals(3, c.count()); |
| |
| Assert.assertEquals("a", a.findNode(new TestPoint2D(0, 1)).getAttribute()); |
| Assert.assertEquals("A", a.findNode(new TestPoint2D(0, -1)).getAttribute()); |
| |
| Assert.assertEquals("b", b.findNode(new TestPoint2D(0, 1)).getAttribute()); |
| Assert.assertEquals("B", b.findNode(new TestPoint2D(0, -1)).getAttribute()); |
| |
| Assert.assertEquals("ab", c.findNode(new TestPoint2D(1, 1)).getAttribute()); |
| Assert.assertEquals("ab", c.findNode(new TestPoint2D(-1, 1)).getAttribute()); |
| Assert.assertEquals("AB", c.findNode(new TestPoint2D(-1, -1)).getAttribute()); |
| Assert.assertEquals("AB", c.findNode(new TestPoint2D(1, -1)).getAttribute()); |
| |
| PartitionTestUtils.assertTreeStructure(a); |
| PartitionTestUtils.assertTreeStructure(b); |
| PartitionTestUtils.assertTreeStructure(c); |
| } |
| |
| @Test |
| public void testMerge_cutsAntiParallel() { |
| // arrange |
| AttributeBSPTree<TestPoint2D, String> a = new AttributeBSPTree<>(); |
| a.getRoot().cut(TestLine.X_AXIS) |
| .getPlus().attr("A") |
| .getParent() |
| .getMinus().attr("a"); |
| |
| AttributeBSPTree<TestPoint2D, String> b = new AttributeBSPTree<>(); |
| b.getRoot().cut(new TestLine(new TestPoint2D(1, 0), TestPoint2D.ZERO)) |
| .getPlus().attr("B") |
| .getParent() |
| .getMinus().attr("b"); |
| |
| AttributeBSPTree<TestPoint2D, String> c = new AttributeBSPTree<>(); |
| |
| TestMergeOperator mergeOp = new TestMergeOperator(); |
| |
| // act |
| mergeOp.apply(a, b, c); |
| |
| // assert |
| Assert.assertEquals(3, a.count()); |
| Assert.assertEquals(3, b.count()); |
| Assert.assertEquals(3, c.count()); |
| |
| Assert.assertEquals("a", a.findNode(new TestPoint2D(0, 1)).getAttribute()); |
| Assert.assertEquals("A", a.findNode(new TestPoint2D(0, -1)).getAttribute()); |
| |
| Assert.assertEquals("B", b.findNode(new TestPoint2D(0, 1)).getAttribute()); |
| Assert.assertEquals("b", b.findNode(new TestPoint2D(0, -1)).getAttribute()); |
| |
| Assert.assertEquals("aB", c.findNode(new TestPoint2D(1, 1)).getAttribute()); |
| Assert.assertEquals("aB", c.findNode(new TestPoint2D(-1, 1)).getAttribute()); |
| Assert.assertEquals("Ab", c.findNode(new TestPoint2D(-1, -1)).getAttribute()); |
| Assert.assertEquals("Ab", c.findNode(new TestPoint2D(1, -1)).getAttribute()); |
| |
| PartitionTestUtils.assertTreeStructure(a); |
| PartitionTestUtils.assertTreeStructure(b); |
| PartitionTestUtils.assertTreeStructure(c); |
| } |
| |
| @Test |
| public void testMerge_cutOnPlusSide_parallel() { |
| // arrange |
| AttributeBSPTree<TestPoint2D, String> a = new AttributeBSPTree<>(); |
| a.getRoot().cut(TestLine.X_AXIS) |
| .getPlus().attr("A") |
| .getParent() |
| .getMinus().attr("a"); |
| |
| AttributeBSPTree<TestPoint2D, String> b = new AttributeBSPTree<>(); |
| b.getRoot().cut(new TestLine(new TestPoint2D(0, -2), new TestPoint2D(1, -2))) |
| .getPlus().attr("B") |
| .getParent() |
| .getMinus().attr("b"); |
| |
| AttributeBSPTree<TestPoint2D, String> c = new AttributeBSPTree<>(); |
| |
| TestMergeOperator mergeOp = new TestMergeOperator(); |
| |
| // act |
| mergeOp.apply(a, b, c); |
| |
| // assert |
| Assert.assertEquals(3, a.count()); |
| Assert.assertEquals(3, b.count()); |
| Assert.assertEquals(5, c.count()); |
| |
| Assert.assertEquals("a", a.findNode(new TestPoint2D(0, 1)).getAttribute()); |
| Assert.assertEquals("A", a.findNode(new TestPoint2D(0, -1)).getAttribute()); |
| |
| Assert.assertEquals("b", b.findNode(new TestPoint2D(0, -1)).getAttribute()); |
| Assert.assertEquals("B", b.findNode(new TestPoint2D(0, -3)).getAttribute()); |
| |
| Assert.assertEquals("ab", c.findNode(new TestPoint2D(1, 1)).getAttribute()); |
| Assert.assertEquals("ab", c.findNode(new TestPoint2D(-1, 1)).getAttribute()); |
| Assert.assertEquals("Ab", c.findNode(new TestPoint2D(-1, -1)).getAttribute()); |
| Assert.assertEquals("Ab", c.findNode(new TestPoint2D(1, -1)).getAttribute()); |
| |
| Assert.assertEquals("AB", c.findNode(new TestPoint2D(-1, -3)).getAttribute()); |
| Assert.assertEquals("AB", c.findNode(new TestPoint2D(1, -3)).getAttribute()); |
| |
| PartitionTestUtils.assertTreeStructure(a); |
| PartitionTestUtils.assertTreeStructure(b); |
| PartitionTestUtils.assertTreeStructure(c); |
| } |
| |
| @Test |
| public void testMerge_cutOnPlusSide_antiParallel() { |
| // arrange |
| AttributeBSPTree<TestPoint2D, String> a = new AttributeBSPTree<>(); |
| a.getRoot().cut(TestLine.X_AXIS) |
| .getPlus().attr("A") |
| .getParent() |
| .getMinus().attr("a"); |
| |
| AttributeBSPTree<TestPoint2D, String> b = new AttributeBSPTree<>(); |
| b.getRoot().cut(new TestLine(new TestPoint2D(1, -2), new TestPoint2D(0, -2))) |
| .getPlus().attr("B") |
| .getParent() |
| .getMinus().attr("b"); |
| |
| AttributeBSPTree<TestPoint2D, String> c = new AttributeBSPTree<>(); |
| |
| TestMergeOperator mergeOp = new TestMergeOperator(); |
| |
| // act |
| mergeOp.apply(a, b, c); |
| |
| // assert |
| Assert.assertEquals(3, a.count()); |
| Assert.assertEquals(3, b.count()); |
| Assert.assertEquals(5, c.count()); |
| |
| Assert.assertEquals("a", a.findNode(new TestPoint2D(0, 1)).getAttribute()); |
| Assert.assertEquals("A", a.findNode(new TestPoint2D(0, -1)).getAttribute()); |
| |
| Assert.assertEquals("B", b.findNode(new TestPoint2D(0, -1)).getAttribute()); |
| Assert.assertEquals("b", b.findNode(new TestPoint2D(0, -3)).getAttribute()); |
| |
| Assert.assertEquals("aB", c.findNode(new TestPoint2D(1, 1)).getAttribute()); |
| Assert.assertEquals("aB", c.findNode(new TestPoint2D(-1, 1)).getAttribute()); |
| Assert.assertEquals("AB", c.findNode(new TestPoint2D(-1, -1)).getAttribute()); |
| Assert.assertEquals("AB", c.findNode(new TestPoint2D(1, -1)).getAttribute()); |
| |
| Assert.assertEquals("Ab", c.findNode(new TestPoint2D(-1, -3)).getAttribute()); |
| Assert.assertEquals("Ab", c.findNode(new TestPoint2D(1, -3)).getAttribute()); |
| |
| PartitionTestUtils.assertTreeStructure(a); |
| PartitionTestUtils.assertTreeStructure(b); |
| PartitionTestUtils.assertTreeStructure(c); |
| } |
| |
| @Test |
| public void testMerge_cutOnMinusSide_parallel() { |
| // arrange |
| AttributeBSPTree<TestPoint2D, String> a = new AttributeBSPTree<>(); |
| a.getRoot().cut(TestLine.X_AXIS) |
| .getPlus().attr("A") |
| .getParent() |
| .getMinus().attr("a"); |
| |
| AttributeBSPTree<TestPoint2D, String> b = new AttributeBSPTree<>(); |
| b.getRoot().cut(new TestLine(new TestPoint2D(0, 2), new TestPoint2D(1, 2))) |
| .getPlus().attr("B") |
| .getParent() |
| .getMinus().attr("b"); |
| |
| AttributeBSPTree<TestPoint2D, String> c = new AttributeBSPTree<>(); |
| |
| TestMergeOperator mergeOp = new TestMergeOperator(); |
| |
| // act |
| mergeOp.apply(a, b, c); |
| |
| // assert |
| Assert.assertEquals(3, a.count()); |
| Assert.assertEquals(3, b.count()); |
| Assert.assertEquals(5, c.count()); |
| |
| Assert.assertEquals("a", a.findNode(new TestPoint2D(0, 1)).getAttribute()); |
| Assert.assertEquals("A", a.findNode(new TestPoint2D(0, -1)).getAttribute()); |
| |
| Assert.assertEquals("B", b.findNode(new TestPoint2D(0, 1)).getAttribute()); |
| Assert.assertEquals("b", b.findNode(new TestPoint2D(0, 3)).getAttribute()); |
| |
| Assert.assertEquals("aB", c.findNode(new TestPoint2D(1, 1)).getAttribute()); |
| Assert.assertEquals("aB", c.findNode(new TestPoint2D(-1, 1)).getAttribute()); |
| Assert.assertEquals("AB", c.findNode(new TestPoint2D(-1, -1)).getAttribute()); |
| Assert.assertEquals("AB", c.findNode(new TestPoint2D(1, -1)).getAttribute()); |
| |
| Assert.assertEquals("ab", c.findNode(new TestPoint2D(-1, 3)).getAttribute()); |
| Assert.assertEquals("ab", c.findNode(new TestPoint2D(1, 3)).getAttribute()); |
| |
| PartitionTestUtils.assertTreeStructure(a); |
| PartitionTestUtils.assertTreeStructure(b); |
| PartitionTestUtils.assertTreeStructure(c); |
| } |
| |
| @Test |
| public void testMerge_cutOnMinusSide_antiParallel() { |
| // arrange |
| AttributeBSPTree<TestPoint2D, String> a = new AttributeBSPTree<>(); |
| a.getRoot().cut(TestLine.X_AXIS) |
| .getPlus().attr("A") |
| .getParent() |
| .getMinus().attr("a"); |
| |
| AttributeBSPTree<TestPoint2D, String> b = new AttributeBSPTree<>(); |
| b.getRoot().cut(new TestLine(new TestPoint2D(1, 2), new TestPoint2D(0, 2))) |
| .getPlus().attr("B") |
| .getParent() |
| .getMinus().attr("b"); |
| |
| AttributeBSPTree<TestPoint2D, String> c = new AttributeBSPTree<>(); |
| |
| TestMergeOperator mergeOp = new TestMergeOperator(); |
| |
| // act |
| mergeOp.apply(a, b, c); |
| |
| // assert |
| Assert.assertEquals(3, a.count()); |
| Assert.assertEquals(3, b.count()); |
| Assert.assertEquals(5, c.count()); |
| |
| Assert.assertEquals("a", a.findNode(new TestPoint2D(0, 1)).getAttribute()); |
| Assert.assertEquals("A", a.findNode(new TestPoint2D(0, -1)).getAttribute()); |
| |
| Assert.assertEquals("b", b.findNode(new TestPoint2D(0, 1)).getAttribute()); |
| Assert.assertEquals("B", b.findNode(new TestPoint2D(0, 3)).getAttribute()); |
| |
| Assert.assertEquals("ab", c.findNode(new TestPoint2D(1, 1)).getAttribute()); |
| Assert.assertEquals("ab", c.findNode(new TestPoint2D(-1, 1)).getAttribute()); |
| Assert.assertEquals("Ab", c.findNode(new TestPoint2D(-1, -1)).getAttribute()); |
| Assert.assertEquals("Ab", c.findNode(new TestPoint2D(1, -1)).getAttribute()); |
| |
| Assert.assertEquals("aB", c.findNode(new TestPoint2D(-1, 3)).getAttribute()); |
| Assert.assertEquals("aB", c.findNode(new TestPoint2D(1, 3)).getAttribute()); |
| |
| PartitionTestUtils.assertTreeStructure(a); |
| PartitionTestUtils.assertTreeStructure(b); |
| PartitionTestUtils.assertTreeStructure(c); |
| } |
| |
| @Test |
| public void testMerge_outputIsFirstInput() { |
| // arrange |
| AttributeBSPTree<TestPoint2D, String> a = new AttributeBSPTree<>(); |
| a.getRoot().cut(TestLine.X_AXIS) |
| .getPlus().attr("A") |
| .getParent() |
| .getMinus().attr("a"); |
| |
| AttributeBSPTree<TestPoint2D, String> b = new AttributeBSPTree<>(); |
| b.getRoot().cut(TestLine.Y_AXIS) |
| .getPlus().attr("B") |
| .getParent() |
| .getMinus().attr("b"); |
| |
| TestMergeOperator mergeOp = new TestMergeOperator(); |
| |
| // act |
| mergeOp.apply(a, b, a); |
| |
| // assert |
| Assert.assertEquals(7, a.count()); |
| Assert.assertEquals(3, b.count()); |
| |
| Assert.assertEquals("B", b.findNode(new TestPoint2D(1, 0)).getAttribute()); |
| Assert.assertEquals("b", b.findNode(new TestPoint2D(-1, 0)).getAttribute()); |
| |
| Assert.assertEquals("aB", a.findNode(new TestPoint2D(1, 1)).getAttribute()); |
| Assert.assertEquals("ab", a.findNode(new TestPoint2D(-1, 1)).getAttribute()); |
| Assert.assertEquals("Ab", a.findNode(new TestPoint2D(-1, -1)).getAttribute()); |
| Assert.assertEquals("AB", a.findNode(new TestPoint2D(1, -1)).getAttribute()); |
| |
| PartitionTestUtils.assertTreeStructure(a); |
| PartitionTestUtils.assertTreeStructure(b); |
| } |
| |
| @Test |
| public void testMerge_outputIsSecondInput() { |
| // arrange |
| AttributeBSPTree<TestPoint2D, String> a = new AttributeBSPTree<>(); |
| a.getRoot().cut(TestLine.X_AXIS) |
| .getPlus().attr("A") |
| .getParent() |
| .getMinus().attr("a"); |
| |
| AttributeBSPTree<TestPoint2D, String> b = new AttributeBSPTree<>(); |
| b.getRoot().cut(TestLine.Y_AXIS) |
| .getPlus().attr("B") |
| .getParent() |
| .getMinus().attr("b"); |
| |
| TestMergeOperator mergeOp = new TestMergeOperator(); |
| |
| // act |
| mergeOp.apply(a, b, b); |
| |
| // assert |
| Assert.assertEquals(3, a.count()); |
| Assert.assertEquals(7, b.count()); |
| |
| Assert.assertEquals("a", a.findNode(new TestPoint2D(0, 1)).getAttribute()); |
| Assert.assertEquals("A", a.findNode(new TestPoint2D(0, -1)).getAttribute()); |
| |
| Assert.assertEquals("aB", b.findNode(new TestPoint2D(1, 1)).getAttribute()); |
| Assert.assertEquals("ab", b.findNode(new TestPoint2D(-1, 1)).getAttribute()); |
| Assert.assertEquals("Ab", b.findNode(new TestPoint2D(-1, -1)).getAttribute()); |
| Assert.assertEquals("AB", b.findNode(new TestPoint2D(1, -1)).getAttribute()); |
| |
| PartitionTestUtils.assertTreeStructure(a); |
| PartitionTestUtils.assertTreeStructure(b); |
| } |
| |
| private static class TestMergeOperator extends AbstractBSPTreeMergeOperator<TestPoint2D, AttributeNode<TestPoint2D, String>> { |
| |
| /** Perform the test merge operation with the given arguments. |
| * @param input1 |
| * @param input2 |
| * @param output |
| */ |
| public void apply(AttributeBSPTree<TestPoint2D, String> input1, AttributeBSPTree<TestPoint2D, String> input2, |
| AttributeBSPTree<TestPoint2D, String> output) { |
| performMerge(input1, input2, output); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| protected AttributeNode<TestPoint2D, String> mergeLeaf(AttributeNode<TestPoint2D, String> node1, |
| AttributeNode<TestPoint2D, String> node2) { |
| |
| final AttributeNode<TestPoint2D, String> leaf = node1.isLeaf() ? node1 : node2; |
| final AttributeNode<TestPoint2D, String> subtree = node1.isInternal() ? node1 : node2; |
| |
| String attr = leaf.getAttribute(); |
| |
| AttributeNode<TestPoint2D, String> output = outputSubtree(subtree); |
| StreamSupport.stream(output.nodes().spliterator(), false) |
| .filter(BSPTree.Node::isLeaf) |
| .forEach(n -> n.setAttribute(attr + n.getAttribute())); |
| |
| return output; |
| } |
| } |
| } |