程序包 ohos.sensor.data

类 CategoryEnvironmentData

java.lang.Object

ohos.sensor.data.SensorData<CategoryEnvironment>

ohos.sensor.data.CategoryEnvironmentData

public class CategoryEnvironmentData
extends SensorData<CategoryEnvironment>

Inherits from SensorData and describes data information of environment sensors.

The data information includes the timestamps, accuracy, data values, and data dimensions of sensors. This class also provides the method for constructing a CategoryEnvironmentData instance.

从以下版本开始:

1

另请参阅:

SensorData, CategoryEnvironment

SystemCapability

SystemCapability.Sensors#SENSOR

嵌套类概要

嵌套类

限定符和类型	类	说明
static class	CategoryEnvironmentData.GeomagneticField	Implements the calculation of the geomagnetic field at a specific location on Earth.

字段概要

字段

限定符和类型	字段	说明
static float	SEA_PRESSURE	Indicates the standard atmospheric pressure or the mean sea-level pressure, in hPa.

从类继承的字段 ohos.sensor.data.SensorData

accuracy, DEFAULT_SENSOR_DATA_DIMS, sensor, sensorDataDim, timestamp, values

构造器概要

构造器

构造器	说明
CategoryEnvironmentData(CategoryEnvironment sensor, int accuracy, long timestamp, int sensorDataDim, float[] values)	A constructor used to create a CategoryEnvironmentData instance.

方法概要

限定符和类型	方法	说明
static float	getDeviceAltitude(float currentPressure)	Obtains the altitude at which the device is located based on the current atmospheric pressure.
static float	getDeviceAltitude(float seaPressure, float currentPressure)	Obtains the altitude at which the device is located based on the sea-level atmospheric pressure and the current atmospheric pressure.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

从类继承的方法 ohos.sensor.data.SensorData

getAccuracy, getSensor, getSensorDataDim, getTimestamp, getValues

字段详细资料

SEA_PRESSURE

public static final float SEA_PRESSURE

Indicates the standard atmospheric pressure or the mean sea-level pressure, in hPa.

从以下版本开始:

5

另请参阅:

常量字段值

构造器详细资料

CategoryEnvironmentData

public CategoryEnvironmentData(CategoryEnvironment sensor,
                               int accuracy,
                               long timestamp,
                               int sensorDataDim,
                               float[] values)

A constructor used to create a CategoryEnvironmentData instance.

参数:

sensor - Indicates a sensor.

accuracy - Indicates the sensor accuracy.

timestamp - Indicates the sensor timestamp.

sensorDataDim - Indicates the data dimension of the sensor.

values - Indicates the data values of the sensor.

从以下版本开始:

1

方法详细资料

getDeviceAltitude

public static float getDeviceAltitude(float seaPressure,
                                      float currentPressure)

Obtains the altitude at which the device is located based on the sea-level atmospheric pressure and the current atmospheric pressure.

参数:

seaPressure - Indicates the sea-level atmospheric pressure, in hPa. The value can be SEA_PRESSURE.

currentPressure - Indicates the atmospheric pressure measured by the barometer, in hPa.

返回:

Returns the altitude in meters at which the device is located.

从以下版本开始:

5

getDeviceAltitude

public static float getDeviceAltitude(float currentPressure)

Obtains the altitude at which the device is located based on the current atmospheric pressure.

参数:

currentPressure - Indicates the atmospheric pressure measured by the barometer, in hPa.

返回:

Returns the altitude in meters at which the device is located.

从以下版本开始:

5