### 成员变量

类型: String

#### # static readonly arrow

LineMarkerPlacement.arrow 箭头

Default Value:
  - 'arrow'

类型: String

#### # static readonly circle

LineMarkerPlacement.circle 圆形

Default Value:
  - 'circle'

类型: String

#### # static readonly cross

LineMarkerPlacement.cross 十字

Default Value:
  - 'cross'

类型: String

#### # static readonly diamond

LineMarkerPlacement.diamond 菱形

Default Value:
  - 'diamond'

类型: String

#### # static readonly square

LineMarkerPlacement.square 正方形

Default Value:
  - 'square'

类型: String

#### # static readonly x

LineMarkerPlacement.x x

Default Value:
  - 'x'