S2 Geometry Library (Dart)

This software is a derivative work based on the S2 Geometry Library for Java:
https://github.com/google/s2-geometry-library-java

Original S2 Geometry Library:
Copyright 2005 Google Inc. All Rights Reserved.

Licensed 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.

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This Dart port was created by translating the Java source code to Dart.
The original algorithms, data structures, and mathematical foundations
remain the intellectual property of Google Inc.

For more information about the S2 Geometry Library, see:
- https://s2geometry.io/
- https://github.com/google/s2geometry (C++ reference implementation)

