A member that can be used to construct an Expression that may be used to create a constraint. This is to facilitate the easy creation of constraints. The use of the operator overloads is completely optional and is only meant as a convenience. The Constraint expressions can be created by manually creating instance of Constraint variables, then terms and combining those to create expression.

Implemented by

Constructors

EquationMember()

Properties

isConstant → bool

Returns if this member is a constant. Constant members can be combined more easily without making the expression non-linear. This makes them easier to use with multiplication and division operators. Constant expression that have zero value may also eliminate other expressions from the solver when used with the multiplication operator.

read-only
value → double

The current constant value of this member. After a Solver flush, this is value read by entities outside the Solver.

read-only
hashCode → int

Get a hash code for this object.

read-only, inherited
runtimeType → Type

A representation of the runtime type of the object.

read-only, inherited

Operators

operator *(EquationMember m) → Expression

Creates a Expression by multiplying this member with the argument. Both members may need to be hoisted to expressions themselves before this can occur.

operator +(EquationMember m) → Expression

Creates a Expression by adding this member with the argument. Both members may need to be hoisted to expressions themselves before this can occur.

operator -(EquationMember m) → Expression

Creates a Expression by subtracting the argument from this member. Both members may need to be hoisted to expressions themselves before this can occur.

operator /(EquationMember m) → Expression

Creates a Expression by dividing this member by the argument. Both members may need to be hoisted to expressions themselves before this can occur.

operator <=(EquationMember m) → Constraint

Creates a Constraint by using this member as the left hand side expression and the argument as the right hand side Expression of a Constraint with a Relation.lessThanOrEqualTo relationship between the two.

operator >=(EquationMember m) → Constraint

Creates a Constraint by using this member as the left hand side expression and the argument as the right hand side Expression of a Constraint with a Relation.greaterThanOrEqualTo relationship between the two.

operator ==(other) → bool

The equality operator.

inherited

Methods

asExpression() → Expression

The representation of this member after it is hoisted to be an expression.

equals(EquationMember m) → Constraint

Creates a Constraint by using this member as the left hand side expression and the argument as the right hand side Expression of a Constraint with a Relation.equalTo relationship between the two.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a non-existent method or property is accessed.

inherited
toString() → String

Returns a string representation of this object.

inherited