toString method
A string representation of this object.
Some classes have a default textual representation,
often paired with a static parse function (like int.parse).
These classes will provide the textual representation as
their string representation.
Other classes have no meaningful textual representation
that a program will care about.
Such classes will typically override toString to provide
useful information when inspecting the object,
mainly for debugging or logging.
Implementation
@override
String toString()
{
final Duration diff = maxX.difference(minX);
final String width = diff.inMicroseconds > Duration.microsecondsPerDay
? '${(diff.inMicroseconds / Duration.microsecondsPerDay).toStringAsFixed(2)} days'
: diff.inMicroseconds > Duration.microsecondsPerHour
? '${(diff.inMicroseconds / Duration.microsecondsPerHour).toStringAsFixed(2)} hours'
: '$diff';
return 'X: [$minX, $maxX] = $width, Y: [$minY, $maxY] = ${getHeight()}';
}