Point constructor
有参构造
Implementation
Point(
{@required this.location,
@required this.locTime,
this.coordType: CoordType.BD09LL,
this.radius,
this.direction,
this.speed,
this.height});
有参构造
Point(
{@required this.location,
@required this.locTime,
this.coordType: CoordType.BD09LL,
this.radius,
this.direction,
this.speed,
this.height});