# alpha property - Polyline class - amap_map library - Dart API
API docs for the alpha property from the Polyline class, for the Dart programming language.

1. amap_map
2. amap_map
3. Polyline
4. alpha property

##### Polyline class

1. Constructors
2. Polyline
3. Properties
4. alpha
5. capType
6. color
7. customTexture
8. dashLineType
9. geodesic
10. hashCode
11. id
12. joinType
13. onTap
14. points
15. runtimeType
16. visible
17. width
18. Methods
19. clone
20. copyWith
21. noSuchMethod
22. setIdForCopy
23. toMap
24. toString
25. Operators
26. operator ==

# alpha property

double alpha
final

透明度

## Implementation

    final double alpha