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// Copyright (c) 2011 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.
#ifndef UI_GFX_POINT3_H_
#define UI_GFX_POINT3_H_
#include <cmath>
#include "ui/gfx/point.h"
namespace gfx {
// A point has an x, y and z coordinate.
class Point3f {
public:
Point3f() : x_(0), y_(0), z_(0) {}
Point3f(float x, float y, float z) : x_(x), y_(y), z_(z) {}
Point3f(const Point& point) : x_(point.x()), y_(point.y()), z_(0) {}
~Point3f() {}
float x() const { return x_; }
float y() const { return y_; }
float z() const { return z_; }
void set_x(float x) { x_ = x; }
void set_y(float y) { y_ = y; }
void set_z(float z) { z_ = z; }
void SetPoint(float x, float y, float z) {
x_ = x;
y_ = y;
z_ = z;
}
// Returns the squared euclidean distance between two points.
float SquaredDistanceTo(const Point3f& other) const {
float dx = x_ - other.x_;
float dy = y_ - other.y_;
float dz = z_ - other.z_;
return dx * dx + dy * dy + dz * dz;
}
Point AsPoint() const {
return Point(static_cast<int>(std::floor(x_)),
static_cast<int>(std::floor(y_)));
}
private:
float x_;
float y_;
float z_;
// copy/assign are allowed.
};
} // namespace gfx
#endif // UI_GFX_POINT3_H_
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