toMap method
Converts dat to Map (json) Exported data can be restored via HandSignatureControl.fromMap factory or via importData method.
Implementation
Map<String, dynamic> toMap() => {
'bounds': {
'width': _areaSize.width,
'height': _areaSize.height,
},
'paths':
paths.map((p) => p.points.map((p) => p.toMap()).toList()).toList(),
'threshold': threshold,
'smoothRatio': smoothRatio,
'velocityRange': velocityRange,
};