SolarTimeCalculator class

真太阳时计算工具类

真太阳时是基于太阳在特定地点的实际位置来测量的时间。 当太阳恰好经过观测点的子午线(正南或正北方向)时，真太阳时是12:00(正午)。

Constructors

SolarTimeCalculator.new()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

calculateHourAngle(DateTime trueSolarTime) → double

计算太阳时角(单位:度) 时角是指太阳与观测点子午线的夹角，正午为0度

calculateTrueSolarTime(DateTime dateTime, double longitude, double timeZoneOffset) → DateTime

计算真太阳时 dateTime - 需要计算的日期时间(本地时间) longitude - 观测点经度，单位为度(东经为正，西经为负) timeZoneOffset - 时区偏移(小时)

formatTrueSolarTime(DateTime trueSolarTime) → String

格式化真太阳时为字符串