OffsetBase class abstract
Base class for Size and Offset, which are both ways to describe a distance as a twodimensional axisaligned vector.
Constructors
 OffsetBase(double _dx, double _dy)

Abstract const constructor. This constructor enables subclasses to provide
const constructors so that they can be used in const expressions.
const
Properties
 hashCode → int

The hash code for this object.
no setteroverride
 isFinite → bool

Whether both components are finite (neither infinite nor NaN).
no setter
 isInfinite → bool

Returns true if either component is double.infinity, and false if both
are finite (or negative infinity, or NaN).
no setter
 runtimeType → Type

A representation of the runtime type of the object.
no setterinherited
Methods

noSuchMethod(
Invocation invocation) → dynamic 
Invoked when a nonexistent method or property is accessed.
inherited

toString(
) → String 
A string representation of this object.
override
Operators

operator <(
OffsetBase other) → bool  Lessthan operator. Compares an Offset or Size to another Offset or Size, and returns true if both the horizontal and vertical values of the lefthandside operand are smaller than the horizontal and vertical values of the righthandside operand respectively. Returns false otherwise.

operator <=(
OffsetBase other) → bool  Lessthanorequalto operator. Compares an Offset or Size to another Offset or Size, and returns true if both the horizontal and vertical values of the lefthandside operand are smaller than or equal to the horizontal and vertical values of the righthandside operand respectively. Returns false otherwise.

operator ==(
Object other) → bool 
Equality operator. Compares an Offset or Size to another Offset or
Size, and returns true if the horizontal and vertical values of the
lefthandside operand are equal to the horizontal and vertical values of
the righthandside operand respectively. Returns false otherwise.
override

operator >(
OffsetBase other) → bool  Greaterthan operator. Compares an Offset or Size to another Offset or Size, and returns true if both the horizontal and vertical values of the lefthandside operand are bigger than the horizontal and vertical values of the righthandside operand respectively. Returns false otherwise.

operator >=(
OffsetBase other) → bool  Greaterthanorequalto operator. Compares an Offset or Size to another Offset or Size, and returns true if both the horizontal and vertical values of the lefthandside operand are bigger than or equal to the horizontal and vertical values of the righthandside operand respectively. Returns false otherwise.