# copyWith method

Polyline copyWith (

1. {List <LatLng> pointsParam,
2. double widthParam,
3. int zIndexParam,
4. bool visibleParam,
5. double alphaParam,
6. DashLineType dashLineTypeParam,
7. CapType capTypeParam,
8. JoinType joinTypeParam,
9. BitmapDescriptor customTextureParam,
10. ArgumentCallback<String> onTapParam,
11. Color colorParam}

)

实际copy函数

## Implementation

    Polyline copyWith({
      List<LatLng> pointsParam,
      double widthParam,
      int zIndexParam,
      bool visibleParam,
      double alphaParam,
      DashLineType dashLineTypeParam,
      CapType capTypeParam,
      JoinType joinTypeParam,
      BitmapDescriptor customTextureParam,
      ArgumentCallback<String> onTapParam,
      Color colorParam,
    }) {
      Polyline copyPolyline = Polyline(
        points: pointsParam ?? points,
        width: widthParam ?? width,
        visible: visibleParam ?? visible,
        geodesic: geodesic,
        alpha: alphaParam ?? alpha,
        dashLineType: dashLineTypeParam ?? dashLineType,
        capType: capTypeParam ?? capType,
        joinType: joinTypeParam ?? joinType,
        customTexture: customTextureParam ?? customTexture,
        onTap: onTapParam ?? onTap,
        color: colorParam ?? color,
      );
      copyPolyline.setIdForCopy(id);
      return copyPolyline;
    }