chromium/ui/base/prediction/kalman_filter.cc

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ui/base/prediction/kalman_filter.h"

#include "base/check_op.h"

namespace {
constexpr uint32_t kStableIterNum = …;

constexpr double kSigmaProcess = …;
constexpr double kSigmaMeasurement = …;

gfx::Matrix3F GetStateTransition(double kDt) { … }

gfx::Matrix3F GetProcessNoise(double kDt) { … }

}  // namespace

namespace ui {

KalmanFilter::KalmanFilter()
    : … { … }

KalmanFilter::~KalmanFilter() = default;

const gfx::Vector3dF& KalmanFilter::GetStateEstimation() const { … }

bool KalmanFilter::Stable() const { … }

void KalmanFilter::Update(double observation, double dt) { … }

void KalmanFilter::Reset() { … }

double KalmanFilter::GetPosition() const { … }

double KalmanFilter::GetVelocity() const { … }

double KalmanFilter::GetAcceleration() const { … }

void KalmanFilter::Predict(double dt) { … }

}  // namespace ui