OverlayNGEmptyDisjointTest.java
/*
* Copyright (c) 2019 Martin Davis.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* and Eclipse Distribution License v. 1.0 which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v20.html
* and the Eclipse Distribution License is available at
*
* http://www.eclipse.org/org/documents/edl-v10.php.
*/
package org.locationtech.jts.operation.overlayng;
import static org.locationtech.jts.operation.overlayng.OverlayNG.INTERSECTION;
import org.locationtech.jts.geom.Geometry;
import org.locationtech.jts.geom.PrecisionModel;
import junit.textui.TestRunner;
public class OverlayNGEmptyDisjointTest extends OverlayNGTestCase {
public static void main(String args[]) {
TestRunner.run(OverlayNGEmptyDisjointTest.class);
}
public OverlayNGEmptyDisjointTest(String name) { super(name); }
public void testEmptyGCBothIntersection() {
Geometry a = read("GEOMETRYCOLLECTION EMPTY");
Geometry b = read("GEOMETRYCOLLECTION EMPTY");
Geometry expected = read("GEOMETRYCOLLECTION EMPTY");
Geometry actual = intersection(a, b, 1);
checkEqual(expected, actual);
}
public void testEmptyAPolygonIntersection() {
Geometry a = read("POLYGON EMPTY");
Geometry b = read("POLYGON ((1 0, 2 5, 3 0, 1 0))");
Geometry expected = read("POLYGON EMPTY");
Geometry actual = intersection(a, b, 1);
checkEqual(expected, actual);
}
public void testEmptyBIntersection() {
Geometry a = read("POLYGON ((1 0, 2 5, 3 0, 1 0))");
Geometry b = read("POLYGON EMPTY");
Geometry expected = read("POLYGON EMPTY");
Geometry actual = intersection(a, b, 1);
checkEqual(expected, actual);
}
public void testEmptyABIntersection() {
Geometry a = read("POLYGON EMPTY");
Geometry b = read("POLYGON EMPTY");
Geometry expected = read("POLYGON EMPTY");
Geometry actual = intersection(a, b, 1);
checkEqual(expected, actual);
}
public void testEmptyADifference() {
Geometry a = read("POLYGON EMPTY");
Geometry b = read("POLYGON ((1 0, 2 5, 3 0, 1 0))");
Geometry expected = read("POLYGON EMPTY");
Geometry actual = difference(a, b, 1);
checkEqual(expected, actual);
}
public void testEmptyAUnion() {
Geometry a = read("POLYGON EMPTY");
Geometry b = read("POLYGON ((1 0, 2 5, 3 0, 1 0))");
Geometry expected = read("POLYGON ((1 0, 2 5, 3 0, 1 0))");
Geometry actual = union(a, b, 1);
checkEqual(expected, actual);
}
public void testEmptyASymDifference() {
Geometry a = read("POLYGON EMPTY");
Geometry b = read("POLYGON ((1 0, 2 5, 3 0, 1 0))");
Geometry expected = read("POLYGON ((1 0, 2 5, 3 0, 1 0))");
Geometry actual = symDifference(a, b, 1);
checkEqual(expected, actual);
}
public void testEmptyLinePolygonIntersection() {
Geometry a = read("LINESTRING EMPTY");
Geometry b = read("POLYGON ((1 0, 2 5, 3 0, 1 0))");
Geometry expected = read("LINESTRING EMPTY");
Geometry actual = intersection(a, b, 1);
checkEqual(expected, actual);
}
public void testEmptyLinePolygonDifference() {
Geometry a = read("LINESTRING EMPTY");
Geometry b = read("POLYGON ((1 0, 2 5, 3 0, 1 0))");
Geometry expected = read("LINESTRING EMPTY");
Geometry actual = difference(a, b, 1);
checkEqual(expected, actual);
}
public void testEmptyPointPolygonIntersection() {
Geometry a = read("POINT EMPTY");
Geometry b = read("POLYGON ((1 0, 2 5, 3 0, 1 0))");
Geometry expected = read("POINT EMPTY");
Geometry actual = intersection(a, b, 1);
checkEqual(expected, actual);
}
public void testDisjointIntersection() {
Geometry a = read("POLYGON ((60 90, 90 90, 90 60, 60 60, 60 90))");
Geometry b = read("POLYGON ((200 300, 300 300, 300 200, 200 200, 200 300))");
Geometry expected = read("POLYGON EMPTY");
Geometry actual = intersection(a, b, 1);
checkEqual(expected, actual);
}
public void testDisjointIntersectionNoOpt() {
Geometry a = read("POLYGON ((60 90, 90 90, 90 60, 60 60, 60 90))");
Geometry b = read("POLYGON ((200 300, 300 300, 300 200, 200 200, 200 300))");
Geometry expected = read("POLYGON EMPTY");
Geometry actual = intersectionNoOpt(a, b, 1);
checkEqual(expected, actual);
}
public static Geometry intersectionNoOpt(Geometry a, Geometry b, double scaleFactor) {
PrecisionModel pm = new PrecisionModel(scaleFactor);
OverlayNG ov = new OverlayNG(a, b, pm, INTERSECTION);
ov.setOptimized(false);
return ov.getResult();
}
}