1 /*
2 * Copyright (c) 2002-2026 Gargoyle Software Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 * https://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15 package org.htmlunit.util.geometry;
16
17 /**
18 * Simple 2D shape interface.
19 *
20 * @author Ronald Brill
21 */
22 public interface Shape2D {
23
24 /** Constant used for comparing doubles. */
25 double EPSILON = 0.000_000_1;
26
27 /**
28 * Returns whether the specified point lies inside this shape.
29 *
30 * @param x the x coordinate of the point to test
31 * @param y the y coordinate of the point to test
32 * @return {@code true} if the point is inside this shape; {@code false} otherwise
33 */
34 boolean contains(double x, double y);
35
36 /**
37 * Returns whether this shape is empty.
38 *
39 * @return {@code true} if this shape is empty; {@code false} otherwise
40 */
41 boolean isEmpty();
42 }