Quadrilateral constructor
Implementation
Quadrilateral(Map<String, dynamic> nativeQuad) {
this.upperLeft = Point(Map<String, dynamic>.from(nativeQuad['upperLeft']));
this.upperRight = Point(Map<String, dynamic>.from(nativeQuad['upperRight']));
this.lowerLeft = Point(Map<String, dynamic>.from(nativeQuad['lowerLeft']));
this.lowerRight = Point(Map<String, dynamic>.from(nativeQuad['lowerRight']));
}