| /* |
| * Copyright 2022 The Android Open Source Project |
| * |
| * 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. |
| */ |
| |
| package android.bluetooth.le; |
| |
| import android.annotation.FloatRange; |
| import android.annotation.NonNull; |
| import android.annotation.SystemApi; |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| |
| /** |
| * Result of distance measurement. |
| * |
| * @hide |
| */ |
| @SystemApi |
| public final class DistanceMeasurementResult implements Parcelable { |
| |
| private final double mMeters; |
| private final double mErrorMeters; |
| private final double mAzimuthAngle; |
| private final double mErrorAzimuthAngle; |
| private final double mAltitudeAngle; |
| private final double mErrorAltitudeAngle; |
| |
| private DistanceMeasurementResult(double meters, double errorMeters, double azimuthAngle, |
| double errorAzimuthAngle, double altitudeAngle, double errorAltitudeAngle) { |
| mMeters = meters; |
| mErrorMeters = errorMeters; |
| mAzimuthAngle = azimuthAngle; |
| mErrorAzimuthAngle = errorAzimuthAngle; |
| mAltitudeAngle = altitudeAngle; |
| mErrorAltitudeAngle = errorAltitudeAngle; |
| } |
| |
| /** |
| * Distance measurement in meters. |
| * |
| * @return distance in meters |
| * |
| * @hide |
| */ |
| @SystemApi |
| public double getResultMeters() { |
| return mMeters; |
| } |
| |
| /** |
| * Error of distance measurement in meters. |
| * <p>Must be positive. |
| * |
| * @return error of distance measurement in meters |
| * |
| * @hide |
| */ |
| @SystemApi |
| @FloatRange(from = 0.0) |
| public double getErrorMeters() { |
| return mErrorMeters; |
| } |
| |
| /** |
| * Azimuth Angle measurement in degrees. |
| * |
| * Azimuth of remote device in horizontal coordinate system, this measured from azimuth north |
| * and increasing eastward. When the remote device in azimuth north, this angle is 0, whe the |
| * remote device in azimuth south, this angle is 180. |
| * |
| * <p>See: <a href="https://en.wikipedia.org/wiki/Horizontal_coordinate_system">Horizontal |
| * coordinate system</a>for the details |
| * |
| * <p>On an Android device, azimuth north is defined as the angle perpendicular away from the |
| * back of the device when holding it in portrait mode upright. |
| * |
| * <p>The Azimuth north is defined as the direction in which the top edge of the device is |
| * facing when it is placed flat. |
| * |
| * @return azimuth angle in degrees or Double.NaN if not available |
| * |
| * @hide |
| */ |
| @SystemApi |
| @FloatRange(from = 0.0, to = 360.0) |
| public double getAzimuthAngle() { |
| return mAzimuthAngle; |
| } |
| |
| /** |
| * Error of azimuth angle measurement in degrees. |
| * |
| * <p>Must be a positive value. |
| * |
| * @return azimuth angle measurement error in degrees or Double.NaN if not available |
| * |
| * @hide |
| */ |
| @SystemApi |
| public double getErrorAzimuthAngle() { |
| return mErrorAzimuthAngle; |
| } |
| |
| /** |
| * Altitude Angle measurement in degrees. |
| * |
| * <p>Altitude of remote device in horizontal coordinate system, this is the angle between the |
| * remote device and the top edge of local device. When local device is placed flat, the angle |
| * of the zenith is 90, the angle of the nadir is -90. |
| * |
| * <p>See: https://en.wikipedia.org/wiki/Horizontal_coordinate_system |
| * |
| * @return altitude angle in degrees or Double.NaN if not available |
| * |
| * @hide |
| */ |
| @SystemApi |
| @FloatRange(from = -90.0, to = 90.0) |
| public double getAltitudeAngle() { |
| return mAltitudeAngle; |
| } |
| |
| /** |
| * Error of altitude angle measurement in degrees. |
| * |
| * <p>Must be a positive value. |
| * |
| * @return altitude angle measurement error in degrees or Double.NaN if not available |
| * |
| * @hide |
| */ |
| @SystemApi |
| public double getErrorAltitudeAngle() { |
| return mErrorAltitudeAngle; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * @hide |
| */ |
| @Override |
| public int describeContents() { |
| return 0; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * @hide |
| */ |
| @Override |
| public void writeToParcel(Parcel out, int flags) { |
| out.writeDouble(mMeters); |
| out.writeDouble(mErrorMeters); |
| out.writeDouble(mAzimuthAngle); |
| out.writeDouble(mErrorAzimuthAngle); |
| out.writeDouble(mAltitudeAngle); |
| out.writeDouble(mErrorAltitudeAngle); |
| } |
| |
| /** @hide **/ |
| @Override |
| public String toString() { |
| return "DistanceMeasurement[" |
| + "meters: " + mMeters |
| + ", errorMeters: " + mErrorMeters |
| + ", azimuthAngle: " + mAzimuthAngle |
| + ", errorAzimuthAngle: " + mErrorAzimuthAngle |
| + ", altitudeAngle: " + mAltitudeAngle |
| + ", errorAltitudeAngle: " + mErrorAltitudeAngle |
| + "]"; |
| } |
| |
| /** |
| * A {@link Parcelable.Creator} to create {@link DistanceMeasurementResult} from parcel. |
| * |
| */ |
| public static final @NonNull Parcelable.Creator<DistanceMeasurementResult> CREATOR = |
| new Parcelable.Creator<DistanceMeasurementResult>() { |
| @Override |
| public @NonNull DistanceMeasurementResult createFromParcel(@NonNull Parcel in) { |
| return new Builder(in.readDouble(), in.readDouble()) |
| .setAzimuthAngle(in.readDouble()) |
| .setErrorAzimuthAngle(in.readDouble()) |
| .setAltitudeAngle(in.readDouble()) |
| .setErrorAltitudeAngle(in.readDouble()) |
| .build(); |
| } |
| |
| @Override |
| public @NonNull DistanceMeasurementResult[] newArray(int size) { |
| return new DistanceMeasurementResult[size]; |
| } |
| }; |
| |
| /** |
| * Builder for {@link DistanceMeasurementResult}. |
| * |
| * @hide |
| */ |
| @SystemApi |
| public static final class Builder { |
| private double mMeters = Double.NaN; |
| private double mErrorMeters = Double.NaN; |
| private double mAzimuthAngle = Double.NaN; |
| private double mErrorAzimuthAngle = Double.NaN; |
| private double mAltitudeAngle = Double.NaN; |
| private double mErrorAltitudeAngle = Double.NaN; |
| |
| /** |
| * Constructor of the Builder. |
| * |
| * @param meters distance in meters |
| * @param errorMeters distance error in meters |
| * @throws IllegalArgumentException if meters is NaN or error is negative or NaN |
| */ |
| public Builder(@FloatRange(from = 0.0) double meters, |
| @FloatRange(from = 0.0)double errorMeters) { |
| if (Double.isNaN(meters) || meters < 0.0) { |
| throw new IllegalArgumentException( |
| "meters must be >= 0.0 and not NaN: " + meters); |
| } |
| if (Double.isNaN(errorMeters) || errorMeters < 0.0) { |
| throw new IllegalArgumentException( |
| "errorMeters must be >= 0.0 and not NaN: " + errorMeters); |
| } |
| mMeters = meters; |
| mErrorMeters = errorMeters; |
| } |
| |
| /** |
| * Set the azimuth angle measurement in degrees. |
| * |
| * @param angle azimuth angle in degrees |
| * @throws IllegalArgumentException if value is invalid |
| * |
| * @hide |
| */ |
| @SystemApi |
| @NonNull |
| public Builder setAzimuthAngle(@FloatRange(from = 0.0, to = 360.0) double angle) { |
| if (angle > 360.0 || angle < 0.0) { |
| throw new IllegalArgumentException( |
| "angle must be in the range from 0.0 to 360.0 : " + angle); |
| } |
| mAzimuthAngle = angle; |
| return this; |
| } |
| |
| /** |
| * Set the azimuth angle error in degrees. |
| * |
| * @param angle azimuth angle error in degrees |
| * @throws IllegalArgumentException if value is invalid |
| * |
| * @hide |
| */ |
| @SystemApi |
| @NonNull |
| public Builder setErrorAzimuthAngle(@FloatRange(from = 0.0, to = 360.0) double angle) { |
| if (angle > 360.0 || angle < 0.0) { |
| throw new IllegalArgumentException( |
| "error angle must be in the range from 0.0 to 360.0 : " + angle); |
| } |
| mErrorAzimuthAngle = angle; |
| return this; |
| } |
| |
| /** |
| * Set the altitude angle measurement in degrees. |
| * |
| * @param angle altitude angle in degrees |
| * @throws IllegalArgumentException if value is invalid |
| * |
| * @hide |
| */ |
| @SystemApi |
| @NonNull |
| public Builder setAltitudeAngle(@FloatRange(from = -90.0, to = 90.0) double angle) { |
| if (angle > 90.0 || angle < -90.0) { |
| throw new IllegalArgumentException( |
| "angle must be in the range from -90.0 to 90.0 : " + angle); |
| } |
| mAltitudeAngle = angle; |
| return this; |
| } |
| |
| /** |
| * Set the altitude angle error in degrees. |
| * |
| * @param angle altitude angle error in degrees |
| * @throws IllegalArgumentException if value is invalid |
| * |
| * @hide |
| */ |
| @SystemApi |
| @NonNull |
| public Builder setErrorAltitudeAngle(@FloatRange(from = 0.0, to = 180.0) double angle) { |
| if (angle > 180.0 || angle < 0.0) { |
| throw new IllegalArgumentException( |
| "error angle must be in the range from 0.0 to 180.0 : " + angle); |
| } |
| mErrorAltitudeAngle = angle; |
| return this; |
| } |
| |
| /** |
| * Builds the {@link DistanceMeasurementResult} object. |
| * |
| * @throws IllegalStateException if meters, error, or confidence are not set |
| * |
| * @hide |
| */ |
| @SystemApi |
| @NonNull |
| public DistanceMeasurementResult build() { |
| return new DistanceMeasurementResult(mMeters, mErrorMeters, mAzimuthAngle, |
| mErrorAzimuthAngle, mAltitudeAngle, mErrorAltitudeAngle); |
| } |
| } |
| } |