| // 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. |
| // |
| |
| // Author: ericv@google.com (Eric Veach) |
| |
| #ifndef S2_S2POINT_H_ |
| #define S2_S2POINT_H_ |
| |
| #include "s2/_fpcontractoff.h" |
| #include "s2/util/math/vector.h" // IWYU pragma: export |
| |
| // An S2Point represents a point on the unit sphere as a 3D vector. Usually |
| // points are normalized to be unit length, but some methods do not require |
| // this. See util/math/vector.h for the methods available. Among other |
| // things, there are overloaded operators that make it convenient to write |
| // arithmetic expressions (e.g. (1-x)*p1 + x*p2). |
| using S2Point = Vector3_d; |
| |
| #endif // S2_S2POINT_H_ |
