toJson method
Implementation
Map<String, dynamic> toJson() => {
'format': format,
'text': text,
'x1': x1,
'y1': y1,
'x2': x2,
'y2': y2,
'x3': x3,
'y3': y3,
'x4': x4,
'y4': y4,
'angle': angle,
};