CameraPosition constructor Null safety
视角位置
target
- 目标点坐标
tilt
- 倾斜度,以角度为单位,0-45
zoom
- 缩放等级
bearing
- 指向的方向,以角度为单位,从正北向逆时针方向计算,0-360
Implementation
CameraPosition({
required this.target,
required this.tilt,
required this.zoom,
required this.bearing,
}) : assert(tilt >= 0 && tilt <= 45, '角度在0-45度之间'),
assert(bearing >= 0 && bearing <= 360, '角度在0-360度之间');