| /* |
| * Copyright (C) 2018 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.location; |
| |
| import android.annotation.Nullable; |
| import android.annotation.SystemApi; |
| import android.os.Parcel; |
| import android.os.Parcelable; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** |
| * A class representing a GNSS measurement corrections for all used GNSS satellites at the location |
| * and time specified |
| * |
| * @hide |
| */ |
| @SystemApi |
| public final class GnssMeasurementCorrections implements Parcelable { |
| |
| /** Represents latitude in degrees at which the corrections are computed. */ |
| private double mLatitudeDegrees; |
| /** Represents longitude in degrees at which the corrections are computed. */ |
| private double mLongitudeDegrees; |
| /** |
| * Represents altitude in meters above the WGS 84 reference ellipsoid at which the corrections |
| * are computed. |
| */ |
| private double mAltitudeMeters; |
| /** |
| * Represents the horizontal uncertainty (68% confidence) in meters on the device position at |
| * which the corrections are provided. |
| * |
| * <p> This value is useful for example to judge how accurate the provided corrections are. |
| */ |
| private double mHorizontalPositionUncertaintyMeters; |
| /** |
| * Represents the vertical uncertainty (68% confidence) in meters on the device position at |
| * which the corrections are provided. |
| * |
| * <p> This value is useful for example to judge how accurate the provided corrections are. |
| */ |
| private double mVerticalPositionUncertaintyMeters; |
| |
| /** Time Of Applicability, GPS time of week in nanoseconds. */ |
| private long mToaGpsNanosecondsOfWeek; |
| |
| /** |
| * A set of {@link GnssSingleSatCorrection} each containing measurement corrections for a |
| * satellite in view. |
| */ |
| private @Nullable List<GnssSingleSatCorrection> mSingleSatCorrectionList; |
| |
| private GnssMeasurementCorrections(Builder builder) { |
| mLatitudeDegrees = builder.mLatitudeDegrees; |
| mLongitudeDegrees = builder.mLongitudeDegrees; |
| mAltitudeMeters = builder.mAltitudeMeters; |
| mHorizontalPositionUncertaintyMeters = builder.mHorizontalPositionUncertaintyMeters; |
| mVerticalPositionUncertaintyMeters = builder.mVerticalPositionUncertaintyMeters; |
| mToaGpsNanosecondsOfWeek = builder.mToaGpsNanosecondsOfWeek; |
| mSingleSatCorrectionList = |
| builder.mSingleSatCorrectionList == null |
| ? null |
| : Collections.unmodifiableList( |
| new ArrayList<>(builder.mSingleSatCorrectionList)); |
| } |
| |
| /** Gets the latitude in degrees at which the corrections are computed. */ |
| public double getLatitudeDegrees() { |
| return mLatitudeDegrees; |
| } |
| |
| /** Gets the longitude in degrees at which the corrections are computed. */ |
| public double getLongitudeDegrees() { |
| return mLongitudeDegrees; |
| } |
| |
| /** |
| * Gets the altitude in meters above the WGS 84 reference ellipsoid at which the corrections are |
| * computed. |
| */ |
| public double getAltitudeMeters() { |
| return mAltitudeMeters; |
| } |
| |
| /** |
| * Gets the horizontal uncertainty (68% confidence) in meters on the device position at |
| * which the corrections are provided. |
| */ |
| public double getHorizontalPositionUncertaintyMeters() { |
| return mHorizontalPositionUncertaintyMeters; |
| } |
| |
| /** |
| * Gets the vertical uncertainty (68% confidence) in meters on the device position at |
| * which the corrections are provided. |
| */ |
| public double getVerticalPositionUncertaintyMeters() { |
| return mVerticalPositionUncertaintyMeters; |
| } |
| |
| /** Gets the time of applicability, GPS time of week in nanoseconds. */ |
| public long getToaGpsNanosecondsOfWeek() { |
| return mToaGpsNanosecondsOfWeek; |
| } |
| |
| /** |
| * Gets a set of {@link GnssSingleSatCorrection} each containing measurement corrections for a |
| * satellite in view |
| */ |
| public @Nullable List<GnssSingleSatCorrection> getSingleSatCorrectionList() { |
| return mSingleSatCorrectionList; |
| } |
| |
| @Override |
| public int describeContents() { |
| return 0; |
| } |
| |
| public static final Creator<GnssMeasurementCorrections> CREATOR = |
| new Creator<GnssMeasurementCorrections>() { |
| @Override |
| public GnssMeasurementCorrections createFromParcel(Parcel parcel) { |
| GnssMeasurementCorrections.Builder gnssMeasurementCorrectons = |
| new Builder() |
| .setLatitudeDegrees(parcel.readDouble()) |
| .setLongitudeDegrees(parcel.readDouble()) |
| .setAltitudeMeters(parcel.readDouble()) |
| .setHorizontalPositionUncertaintyMeters(parcel.readDouble()) |
| .setVerticalPositionUncertaintyMeters(parcel.readDouble()) |
| .setToaGpsNanosecondsOfWeek(parcel.readLong()); |
| List<GnssSingleSatCorrection> singleSatCorrectionList = new ArrayList<>(); |
| parcel.readTypedList(singleSatCorrectionList, GnssSingleSatCorrection.CREATOR); |
| gnssMeasurementCorrectons.setSingleSatCorrectionList( |
| singleSatCorrectionList.isEmpty() ? null : singleSatCorrectionList); |
| return gnssMeasurementCorrectons.build(); |
| } |
| |
| @Override |
| public GnssMeasurementCorrections[] newArray(int i) { |
| return new GnssMeasurementCorrections[i]; |
| } |
| }; |
| |
| @Override |
| public String toString() { |
| final String format = " %-29s = %s\n"; |
| StringBuilder builder = new StringBuilder("GnssMeasurementCorrections:\n"); |
| builder.append(String.format(format, "LatitudeDegrees = ", mLatitudeDegrees)); |
| builder.append(String.format(format, "LongitudeDegrees = ", mLongitudeDegrees)); |
| builder.append(String.format(format, "AltitudeMeters = ", mAltitudeMeters)); |
| builder.append(String.format(format, "HorizontalPositionUncertaintyMeters = ", |
| mHorizontalPositionUncertaintyMeters)); |
| builder.append(String.format(format, "VerticalPositionUncertaintyMeters = ", |
| mVerticalPositionUncertaintyMeters)); |
| builder.append( |
| String.format(format, "ToaGpsNanosecondsOfWeek = ", mToaGpsNanosecondsOfWeek)); |
| builder.append( |
| String.format(format, "mSingleSatCorrectionList = ", mSingleSatCorrectionList)); |
| return builder.toString(); |
| } |
| |
| @Override |
| public void writeToParcel(Parcel parcel, int flags) { |
| parcel.writeDouble(mLatitudeDegrees); |
| parcel.writeDouble(mLongitudeDegrees); |
| parcel.writeDouble(mAltitudeMeters); |
| parcel.writeDouble(mHorizontalPositionUncertaintyMeters); |
| parcel.writeDouble(mVerticalPositionUncertaintyMeters); |
| parcel.writeLong(mToaGpsNanosecondsOfWeek); |
| parcel.writeTypedList(mSingleSatCorrectionList); |
| } |
| |
| /** Builder for {@link GnssMeasurementCorrections} */ |
| public static class Builder { |
| /** |
| * For documentation of below fields, see corresponding fields in {@link |
| * GnssMeasurementCorrections}. |
| */ |
| private double mLatitudeDegrees; |
| private double mLongitudeDegrees; |
| private double mAltitudeMeters; |
| private double mHorizontalPositionUncertaintyMeters; |
| private double mVerticalPositionUncertaintyMeters; |
| private long mToaGpsNanosecondsOfWeek; |
| private List<GnssSingleSatCorrection> mSingleSatCorrectionList; |
| |
| /** Sets the latitude in degrees at which the corrections are computed. */ |
| public Builder setLatitudeDegrees(double latitudeDegrees) { |
| mLatitudeDegrees = latitudeDegrees; |
| return this; |
| } |
| |
| /** Sets the longitude in degrees at which the corrections are computed. */ |
| public Builder setLongitudeDegrees(double longitudeDegrees) { |
| mLongitudeDegrees = longitudeDegrees; |
| return this; |
| } |
| |
| /** |
| * Sets the altitude in meters above the WGS 84 reference ellipsoid at which the corrections |
| * are computed. |
| */ |
| public Builder setAltitudeMeters(double altitudeMeters) { |
| mAltitudeMeters = altitudeMeters; |
| return this; |
| } |
| |
| |
| /** |
| * Sets the horizontal uncertainty (68% confidence) in meters on the device position at |
| * which the corrections are provided. |
| */ |
| public Builder setHorizontalPositionUncertaintyMeters( |
| double horizontalPositionUncertaintyMeters) { |
| mHorizontalPositionUncertaintyMeters = horizontalPositionUncertaintyMeters; |
| return this; |
| } |
| |
| /** |
| * Sets the vertical uncertainty (68% confidence) in meters on the device position at which |
| * the corrections are provided. |
| */ |
| public Builder setVerticalPositionUncertaintyMeters( |
| double verticalPositionUncertaintyMeters) { |
| mVerticalPositionUncertaintyMeters = verticalPositionUncertaintyMeters; |
| return this; |
| } |
| |
| /** Sets the time of applicability, GPS time of week in nanoseconds. */ |
| public Builder setToaGpsNanosecondsOfWeek(long toaGpsNanosecondsOfWeek) { |
| mToaGpsNanosecondsOfWeek = toaGpsNanosecondsOfWeek; |
| return this; |
| } |
| |
| /** |
| * Sets a the list of {@link GnssSingleSatCorrection} containing measurement corrections for |
| * a satellite in view |
| */ |
| public Builder setSingleSatCorrectionList( |
| @Nullable List<GnssSingleSatCorrection> singleSatCorrectionList) { |
| if (singleSatCorrectionList == null) { |
| mSingleSatCorrectionList = null; |
| } else { |
| mSingleSatCorrectionList = |
| Collections.unmodifiableList(new ArrayList<>(singleSatCorrectionList)); |
| } |
| return this; |
| } |
| |
| /** Builds a {@link GnssMeasurementCorrections} instance as specified by this builder. */ |
| public GnssMeasurementCorrections build() { |
| return new GnssMeasurementCorrections(this); |
| } |
| } |
| } |