untransform method
Implementation
CustomPoint<double> untransform(CustomPoint point, double? scale) {
scale ??= 1.0;
final x = (point.x / scale - b) / a;
final y = (point.y / scale - d) / c;
return CustomPoint(x, y);
}
CustomPoint<double> untransform(CustomPoint point, double? scale) {
scale ??= 1.0;
final x = (point.x / scale - b) / a;
final y = (point.y / scale - d) / c;
return CustomPoint(x, y);
}