| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "cobalt/math/point3_f.h" |
| |
| #include "base/stringprintf.h" |
| |
| namespace cobalt { |
| namespace math { |
| |
| std::string Point3F::ToString() const { |
| return base::StringPrintf("%f,%f,%f", x_, y_, z_); |
| } |
| |
| Point3F operator+(const Point3F& lhs, const Vector3dF& rhs) { |
| float x = lhs.x() + rhs.x(); |
| float y = lhs.y() + rhs.y(); |
| float z = lhs.z() + rhs.z(); |
| return Point3F(x, y, z); |
| } |
| |
| // Subtract a vector from a point, producing a new point offset by the vector's |
| // inverse. |
| Point3F operator-(const Point3F& lhs, const Vector3dF& rhs) { |
| float x = lhs.x() - rhs.x(); |
| float y = lhs.y() - rhs.y(); |
| float z = lhs.z() - rhs.z(); |
| return Point3F(x, y, z); |
| } |
| |
| // Subtract one point from another, producing a vector that represents the |
| // distances between the two points along each axis. |
| Vector3dF operator-(const Point3F& lhs, const Point3F& rhs) { |
| float x = lhs.x() - rhs.x(); |
| float y = lhs.y() - rhs.y(); |
| float z = lhs.z() - rhs.z(); |
| return Vector3dF(x, y, z); |
| } |
| |
| } // namespace math |
| } // namespace cobalt |