Wrapper class around the cp_model proto. More...

Public Member Functions
	CpModel ()

IntVar	NewIntVar (long lb, long ub, string name)
	Integer variables and constraints.

IntVar	NewIntVarFromDomain (Domain domain, string name)
	Creates an integer variable with given domain.

IntVar	NewConstant (long value)
	Creates a constant variable.

BoolVar	NewBoolVar (string name)
	Creates a Boolean variable with given domain.

ILiteral	TrueLiteral ()
	Returns a constant true literal.

ILiteral	FalseLiteral ()
	Returns a constant false literal.

Constraint	AddLinearConstraint (LinearExpr expr, long lb, long ub)
	Adds `lb ≤ expr ≤ ub`.

Constraint	AddLinearExpressionInDomain (LinearExpr expr, Domain domain)
	Adds `expr ∈ domain`.

Constraint	Add (BoundedLinearExpression lin)
	Adds a linear constraint to the model.

Constraint	AddAllDifferent (IEnumerable< LinearExpr > exprs)
	Adds the constraint `AllDifferent(exprs)`.

Constraint	AddElement (IntVar index, IEnumerable< IntVar > vars, IntVar target)
	Adds the element constraint: `variables[index] == target`.

Constraint	AddElement (IntVar index, IEnumerable< long > values, IntVar target)
	Adds the element constraint: `values[index] == target`.

Constraint	AddElement (IntVar index, IEnumerable< int > values, IntVar target)
	Adds the element constraint: `values[index] == target`.

CircuitConstraint	AddCircuit ()
	Adds and returns an empty circuit constraint.

MultipleCircuitConstraint	AddMultipleCircuit ()
	Adds and returns an empty multiple circuit constraint.

TableConstraint	AddAllowedAssignments (IEnumerable< IntVar > vars)
	Adds `AllowedAssignments(variables)`.

TableConstraint	AddForbiddenAssignments (IEnumerable< IntVar > vars)
	Adds `ForbiddenAssignments(variables)`.

AutomatonConstraint	AddAutomaton (IEnumerable< IntVar > vars, long starting_state, IEnumerable< long > final_states)
	Adds an automaton constraint.

Constraint	AddInverse (IEnumerable< IntVar > direct, IEnumerable< IntVar > reverse)
	Adds `Inverse(variables, inverseVariables)`.

ReservoirConstraint	AddReservoirConstraint (long minLevel, long maxLevel)
	Adds a reservoir constraint with optional refill/emptying events.

void	AddMapDomain (IntVar var, IEnumerable< IntVar > bool_vars, long offset=0)
	Adds `var == i + offset ⇔ bool_vars[i] == true for all i`.

Constraint	AddImplication (ILiteral a, ILiteral b)
	Adds `a ⇒ b`.

Constraint	AddBoolOr (IEnumerable< ILiteral > literals)
	Adds `Or(literals) == true`.

Constraint	AddAtLeastOne (IEnumerable< ILiteral > literals)
	Same as AddBoolOr: `∑(literals) ≥ 1`.

Constraint	AddAtMostOne (IEnumerable< ILiteral > literals)
	Adds `AtMostOne(literals): ∑(literals) ≤ 1`.

Constraint	AddExactlyOne (IEnumerable< ILiteral > literals)
	Adds `ExactlyOne(literals): ∑(literals) == 1`.

Constraint	AddBoolAnd (IEnumerable< ILiteral > literals)
	Adds `And(literals) == true`.

Constraint	AddBoolXor (IEnumerable< ILiteral > literals)
	Adds `XOr(literals) == true`.

Constraint	AddMinEquality (LinearExpr target, IEnumerable< LinearExpr > exprs)
	Adds `target == Min(exprs)`.

Constraint	AddMaxEquality (LinearExpr target, IEnumerable< LinearExpr > exprs)
	Adds `target == Max(exprs)`.

Constraint	AddDivisionEquality< T, N, D > (T target, N num, D denom)
	Adds `target == num / denom` (integer division rounded towards 0).

Constraint	AddAbsEquality (LinearExpr target, LinearExpr expr)
	Adds `target == abs(expr)`.

Constraint	AddModuloEquality< T, V, M > (T target, V v, M m)
	Adds `target == v % m`.

Constraint	AddMultiplicationEquality (LinearExpr target, IEnumerable< LinearExpr > exprs)
	Adds `target == ∏(exprs)`.

Constraint	AddMultiplicationEquality (LinearExpr target, LinearExpr left, LinearExpr right)
	Adds `target == left * right`.

IntervalVar	NewIntervalVar< S, D, E > (S start, D size, E end, string name)
	Scheduling support.

IntervalVar	NewFixedSizeIntervalVar< S > (S start, long size, string name)
	Creates an interval variable from an affine expression start, and a fixed size.

IntervalVar	NewOptionalIntervalVar< S, D, E > (S start, D size, E end, ILiteral is_present, string name)
	Creates an optional interval variable from three affine expressions start, size, and end, and a literal is_present.

IntervalVar	NewOptionalFixedSizeIntervalVar< S > (S start, long size, ILiteral is_present, string name)
	Creates an optional interval variable from an affine expression start, a fixed size, and a literal is_present.

Constraint	AddNoOverlap (IEnumerable< IntervalVar > intervals)

NoOverlap2dConstraint	AddNoOverlap2D ()
	Adds `NoOverlap2D()`.

CumulativeConstraint	AddCumulative< C > (C capacity)
	Adds `Cumulative(capacity)`.

void	Minimize (LinearExpr obj)
	Objective.

void	Maximize (LinearExpr obj)
	Adds a maximization objective of a linear expression.

void	AddDecisionStrategy (IEnumerable< IntVar > vars, DecisionStrategyProto.Types.VariableSelectionStrategy var_str, DecisionStrategyProto.Types.DomainReductionStrategy dom_str)
	Search Decision.

void	AddHint (IntVar var, long value)
	Adds variable hinting to the model.

void	AddHint (ILiteral lit, bool value)
	Adds variable hinting to the model.

void	ClearHints ()
	Clears all hinting from the model.

void	AddAssumption (ILiteral lit)
	Adds a literal to the model as assumption.

void	AddAssumptions (IEnumerable< ILiteral > literals)
	Adds multiple literals to the model as assumptions.

void	ClearAssumptions ()
	Clears all assumptions from the model.

String	ModelStats ()
	Returns some statistics on model as a string.

Boolean	ExportToFile (String file)
	Write the model as a protocol buffer to `file`.

String	Validate ()
	Returns a non empty string explaining the issue if the model is invalid.

Properties
CpModelProto	Model `[get]`
	Getters.

Detailed Description

Wrapper class around the cp_model proto.

Definition at line 23 of file CpModel.cs.

Constructor & Destructor Documentation

◆ CpModel()

Google.OrTools.Sat.CpModel.CpModel ( )

inline

Definition at line 25 of file CpModel.cs.

Member Function Documentation

◆ Add()

Constraint Google.OrTools.Sat.CpModel.Add ( BoundedLinearExpression lin )

inline

Adds a linear constraint to the model.

Definition at line 192 of file CpModel.cs.

◆ AddAbsEquality()

Constraint Google.OrTools.Sat.CpModel.AddAbsEquality	(	LinearExpr	target,
		LinearExpr	expr )

inline

Adds target == abs(expr).

Definition at line 734 of file CpModel.cs.

◆ AddAllDifferent()

Constraint Google.OrTools.Sat.CpModel.AddAllDifferent ( IEnumerable< LinearExpr > exprs )

inline

Adds the constraint AllDifferent(exprs).

Definition at line 220 of file CpModel.cs.

◆ AddAllowedAssignments()

TableConstraint Google.OrTools.Sat.CpModel.AddAllowedAssignments ( IEnumerable< IntVar > vars )

inline

Adds AllowedAssignments(variables).

An AllowedAssignments constraint is a constraint on an array of variables that forces, when all variables are fixed to a single value, that the corresponding list of values is equal to one of the tuples of the tupleList.

Parameters

vars	a list of variables

Returns: an instance of the TableConstraint class without any tuples. Tuples can be added directly to the table constraint

Definition at line 347 of file CpModel.cs.

◆ AddAssumption()

void Google.OrTools.Sat.CpModel.AddAssumption ( ILiteral lit )

inline

Adds a literal to the model as assumption.

Definition at line 1074 of file CpModel.cs.

◆ AddAssumptions()

void Google.OrTools.Sat.CpModel.AddAssumptions ( IEnumerable< ILiteral > literals )

inline

Adds multiple literals to the model as assumptions.

Definition at line 1080 of file CpModel.cs.

◆ AddAtLeastOne()

Constraint Google.OrTools.Sat.CpModel.AddAtLeastOne ( IEnumerable< ILiteral > literals )

inline

Same as AddBoolOr: ∑(literals) ≥ 1.

Definition at line 590 of file CpModel.cs.

◆ AddAtMostOne()

Constraint Google.OrTools.Sat.CpModel.AddAtMostOne ( IEnumerable< ILiteral > literals )

inline

Adds AtMostOne(literals): ∑(literals) ≤ 1.

Definition at line 600 of file CpModel.cs.

◆ AddAutomaton()

AutomatonConstraint Google.OrTools.Sat.CpModel.AddAutomaton	(	IEnumerable< IntVar >	vars,
		long	starting_state,
		IEnumerable< long >	final_states )

inline

Adds an automaton constraint.

An automaton constraint takes a list of variables (of size n), an initial state, a set of final states, and a set of transitions that will be added incrementally directly on the returned AutomatonConstraint instance. A transition is a triplet (tail, transition, head), where tail and head are states, and transition is the label of an arc from head to tail, corresponding to the value of one variable in the list of variables.

This automaton will be unrolled into a flow with n + 1 phases. Each phase contains the possible states of the automaton. The first state contains the initial state. The last phase contains the final states.

Between two consecutive phases i and i + 1, the automaton creates a set of arcs. For each transition (tail, label, head), it will add an arc from the state tail of phase i and the state head of phase i + 1. This arc labeled by the value label of the variables variables[i]. That is, this arc can only be selected variables[i]a is assigned the value label.

A feasible solution of this constraint is an assignment of variables such that, starting from the initial state in phase 0, there is a path labeled by the values of the variables that ends in one of the final states in the final phase.

Parameters

vars	a non empty list of variables whose values correspond to the labels of the arcs traversed by the automaton
starting_state	the initial state of the automaton
final_states	a non empty list of admissible final states

Returns: an instance of the AutomatonConstraint class

Definition at line 415 of file CpModel.cs.

◆ AddBoolAnd()

Constraint Google.OrTools.Sat.CpModel.AddBoolAnd ( IEnumerable< ILiteral > literals )

inline

Adds And(literals) == true.

Definition at line 638 of file CpModel.cs.

◆ AddBoolOr()

Constraint Google.OrTools.Sat.CpModel.AddBoolOr ( IEnumerable< ILiteral > literals )

inline

Adds Or(literals) == true.

Definition at line 571 of file CpModel.cs.

◆ AddBoolXor()

Constraint Google.OrTools.Sat.CpModel.AddBoolXor ( IEnumerable< ILiteral > literals )

inline

Adds XOr(literals) == true.

Definition at line 657 of file CpModel.cs.

◆ AddCircuit()

CircuitConstraint Google.OrTools.Sat.CpModel.AddCircuit ( )

inline

Adds and returns an empty circuit constraint.

A circuit is a unique Hamiltonian path in a subgraph of the total graph. In case a node i is not in the path, then there must be a loop arc i -> i associated with a true literal. Otherwise this constraint will fail.

Definition at line 307 of file CpModel.cs.

◆ AddCumulative< C >()

CumulativeConstraint Google.OrTools.Sat.CpModel.AddCumulative< C > ( C capacity )

inline

Adds Cumulative(capacity).

This constraint enforces that:

forall t:
     ∑( demands[i] if (start(intervals[t]) ≤ t < end(intervals[t])) and
                      (t is present) ) ≤ capacity

Parameters

capacity the maximum capacity of the cumulative constraint. It must be a positive affine expression

Returns: an instance of the CumulativeConstraint class. this class allows adding (interval, demand) pairs incrementally

Definition at line 984 of file CpModel.cs.

◆ AddDecisionStrategy()

void Google.OrTools.Sat.CpModel.AddDecisionStrategy	(	IEnumerable< IntVar >	vars,
		DecisionStrategyProto.Types.VariableSelectionStrategy	var_str,
		DecisionStrategyProto.Types.DomainReductionStrategy	dom_str )

inline

Search Decision.

Adds DecisionStrategy(variables, var_str, dom_str)..

Definition at line 1024 of file CpModel.cs.

◆ AddDivisionEquality< T, N, D >()

Constraint Google.OrTools.Sat.CpModel.AddDivisionEquality< T, N, D >	(	T	target,
		N	num,
		D	denom )

inline

Adds target == num / denom (integer division rounded towards 0).

Definition at line 716 of file CpModel.cs.

◆ AddElement() [1/3]

Constraint Google.OrTools.Sat.CpModel.AddElement	(	IntVar	index,
		IEnumerable< int >	values,
		IntVar	target )

inline

Adds the element constraint: values[index] == target.

Definition at line 281 of file CpModel.cs.

◆ AddElement() [2/3]

Constraint Google.OrTools.Sat.CpModel.AddElement	(	IntVar	index,
		IEnumerable< IntVar >	vars,
		IntVar	target )

inline

Adds the element constraint: variables[index] == target.

Definition at line 239 of file CpModel.cs.

◆ AddElement() [3/3]

Constraint Google.OrTools.Sat.CpModel.AddElement	(	IntVar	index,
		IEnumerable< long >	values,
		IntVar	target )

inline

Adds the element constraint: values[index] == target.

Definition at line 260 of file CpModel.cs.

◆ AddExactlyOne()

Constraint Google.OrTools.Sat.CpModel.AddExactlyOne ( IEnumerable< ILiteral > literals )

inline

Adds ExactlyOne(literals): ∑(literals) == 1.

Definition at line 619 of file CpModel.cs.

◆ AddForbiddenAssignments()

TableConstraint Google.OrTools.Sat.CpModel.AddForbiddenAssignments ( IEnumerable< IntVar > vars )

inline

Adds ForbiddenAssignments(variables).

A ForbiddenAssignments constraint is a constraint on an array of variables where the list of impossible combinations is provided in the tuples list.

Parameters

vars	a list of variables

Returns: an instance of the TableConstraint class without any tuples. Tuples can be added directly to the table constraint

Definition at line 375 of file CpModel.cs.

◆ AddHint() [1/2]

void Google.OrTools.Sat.CpModel.AddHint	(	ILiteral	lit,
		bool	value )

inline

Adds variable hinting to the model.

Definition at line 1051 of file CpModel.cs.

◆ AddHint() [2/2]

void Google.OrTools.Sat.CpModel.AddHint	(	IntVar	var,
		long	value )

inline

Adds variable hinting to the model.

Definition at line 1043 of file CpModel.cs.

◆ AddImplication()

Constraint Google.OrTools.Sat.CpModel.AddImplication	(	ILiteral	a,
		ILiteral	b )

inline

Adds a ⇒ b.

Definition at line 554 of file CpModel.cs.

◆ AddInverse()

Constraint Google.OrTools.Sat.CpModel.AddInverse	(	IEnumerable< IntVar >	direct,
		IEnumerable< IntVar >	reverse )

inline

Adds Inverse(variables, inverseVariables).

An inverse constraint enforces that if direct[i] == j, then reverse[j] == i, and vice versa.

Parameters

direct	an array of integer variables
reverse	an array of integer variables

Returns: an instance of the Constraint class

Definition at line 446 of file CpModel.cs.

◆ AddLinearConstraint()

Constraint Google.OrTools.Sat.CpModel.AddLinearConstraint	(	LinearExpr	expr,
		long	lb,
		long	ub )

inline

Adds lb ≤ expr ≤ ub.

Definition at line 141 of file CpModel.cs.

◆ AddLinearExpressionInDomain()

Constraint Google.OrTools.Sat.CpModel.AddLinearExpressionInDomain	(	LinearExpr	expr,
		Domain	domain )

inline

Adds expr ∈ domain.

Definition at line 158 of file CpModel.cs.

◆ AddMapDomain()

void Google.OrTools.Sat.CpModel.AddMapDomain	(	IntVar	var,
		IEnumerable< IntVar >	bool_vars,
		long	offset = 0 )

inline

Adds var == i + offset ⇔ bool_vars[i] == true for all i.

Definition at line 509 of file CpModel.cs.

◆ AddMaxEquality()

Constraint Google.OrTools.Sat.CpModel.AddMaxEquality	(	LinearExpr	target,
		IEnumerable< LinearExpr >	exprs )

inline

Adds target == Max(exprs).

Definition at line 696 of file CpModel.cs.

◆ AddMinEquality()

Constraint Google.OrTools.Sat.CpModel.AddMinEquality	(	LinearExpr	target,
		IEnumerable< LinearExpr >	exprs )

inline

Adds target == Min(exprs).

Definition at line 676 of file CpModel.cs.

◆ AddModuloEquality< T, V, M >()

Constraint Google.OrTools.Sat.CpModel.AddModuloEquality< T, V, M >	(	T	target,
		V	v,
		M	m )

inline

Adds target == v % m.

Definition at line 752 of file CpModel.cs.

◆ AddMultipleCircuit()

MultipleCircuitConstraint Google.OrTools.Sat.CpModel.AddMultipleCircuit ( )

inline

Adds and returns an empty multiple circuit constraint.

A multiple circuit is set of cycles in a subgraph of the total graph. The node index by 0 must be part of all cycles of length > 1. Each node with index > 0 belongs to exactly one cycle. If such node does not belong in any cycle of length > 1, then there must be a looping arc on this node attached to a literal that will be true. Otherwise, the constraint will fail.

Definition at line 325 of file CpModel.cs.

◆ AddMultiplicationEquality() [1/2]

Constraint Google.OrTools.Sat.CpModel.AddMultiplicationEquality	(	LinearExpr	target,
		IEnumerable< LinearExpr >	exprs )

inline

Adds target == ∏(exprs).

Definition at line 770 of file CpModel.cs.

◆ AddMultiplicationEquality() [2/2]

Constraint Google.OrTools.Sat.CpModel.AddMultiplicationEquality	(	LinearExpr	target,
		LinearExpr	left,
		LinearExpr	right )

inline

Adds target == left * right.

Definition at line 790 of file CpModel.cs.

◆ AddNoOverlap()

Constraint Google.OrTools.Sat.CpModel.AddNoOverlap ( IEnumerable< IntervalVar > intervals )

inline

Adds NoOverlap(intervalVars).

A NoOverlap constraint ensures that all present intervals do not overlap in time.

Parameters

intervals the list of interval variables to constrain

Returns: an instance of the Constraint class

Definition at line 928 of file CpModel.cs.

◆ AddNoOverlap2D()

NoOverlap2dConstraint Google.OrTools.Sat.CpModel.AddNoOverlap2D ( )

inline

Adds NoOverlap2D().

A NoOverlap2D constraint ensures that all present rectangles do not overlap on a plan. Each rectangle is aligned with the X and Y axis, and is defined by two intervals which represent its projection onto the X and Y axis.

Furthermore, one box is optional if at least one of the x or y interval is optional.

Returns: an instance of the NoOverlap2dConstraint class. This class allows adding rectangles incrementally

Definition at line 958 of file CpModel.cs.

◆ AddReservoirConstraint()

ReservoirConstraint Google.OrTools.Sat.CpModel.AddReservoirConstraint	(	long	minLevel,
		long	maxLevel )

inline

Adds a reservoir constraint with optional refill/emptying events.

Maintain a reservoir level within bounds. The water level starts at 0, and at any time, it must be within [min_level, max_level].

Given an event (time, levelChange, active), if active is true, and if time is assigned a value t, then the level of the reservoir changes by levelChange (which is constant) at time t. Therefore, at any time t:

∑(levelChanges[i] * actives[i] if times[i] ≤ t) in [min_level, max_level]

Note that min level must be ≤ 0, and the max level must be ≥ 0. Please use fixed level_changes to simulate an initial state.

Parameters

minLevel	at any time, the level of the reservoir must be greater of equal than the min level. minLevel must me ≤ 0
maxLevel	at any time, the level of the reservoir must be less or equal than the max level. maxLevel must be ≥ 0

Returns: an instance of the ReservoirConstraint class

Definition at line 492 of file CpModel.cs.

◆ ClearAssumptions()

void Google.OrTools.Sat.CpModel.ClearAssumptions ( )

inline

Clears all assumptions from the model.

Definition at line 1089 of file CpModel.cs.

◆ ClearHints()

void Google.OrTools.Sat.CpModel.ClearHints ( )

inline

Clears all hinting from the model.

Definition at line 1068 of file CpModel.cs.

◆ ExportToFile()

Boolean Google.OrTools.Sat.CpModel.ExportToFile ( String file )

inline

Write the model as a protocol buffer to file.

Parameters

file	file to write the model to. If the filename ends with `txt`, the model will be written as a text file, otherwise, the binary format will be used.

Returns: true if the model was correctly written

Definition at line 1166 of file CpModel.cs.

◆ FalseLiteral()

ILiteral Google.OrTools.Sat.CpModel.FalseLiteral ( )

inline

Returns a constant false literal.

Definition at line 118 of file CpModel.cs.

◆ Maximize()

void Google.OrTools.Sat.CpModel.Maximize ( LinearExpr obj )

inline

Adds a maximization objective of a linear expression.

Definition at line 1004 of file CpModel.cs.

◆ Minimize()

void Google.OrTools.Sat.CpModel.Minimize ( LinearExpr obj )

inline

Objective.

Adds a minimization objective of a linear expression.

Definition at line 998 of file CpModel.cs.

◆ ModelStats()

String Google.OrTools.Sat.CpModel.ModelStats ( )

inline

Returns some statistics on model as a string.

Definition at line 1151 of file CpModel.cs.

◆ NewBoolVar()

BoolVar Google.OrTools.Sat.CpModel.NewBoolVar ( string name )

inline

Creates a Boolean variable with given domain.

Definition at line 98 of file CpModel.cs.

◆ NewConstant()

IntVar Google.OrTools.Sat.CpModel.NewConstant ( long value )

inline

Creates a constant variable.

Definition at line 88 of file CpModel.cs.

◆ NewFixedSizeIntervalVar< S >()

IntervalVar Google.OrTools.Sat.CpModel.NewFixedSizeIntervalVar< S >	(	S	start,
		long	size,
		string	name )

inline

Creates an interval variable from an affine expression start, and a fixed size.

An interval variable is a constraint, that is itself used in other constraints like NoOverlap.

Parameters

start	the start of the interval. It needs to be an affine or constant expression. *
size	the fixed size of the interval
name	the name of the interval variable

Returns: An IntervalVar object

Definition at line 847 of file CpModel.cs.

◆ NewIntervalVar< S, D, E >()

IntervalVar Google.OrTools.Sat.CpModel.NewIntervalVar< S, D, E >	(	S	start,
		D	size,
		E	end,
		string	name )

inline

Scheduling support.

Creates an interval variable from three affine expressions start, size, and end.

An interval variable is a constraint, that is itself used in other constraints like NoOverlap. Internally, it ensures that start + size == end.

Parameters

start	the start of the interval. It needs to be an affine or constant expression.
size	the size of the interval. It needs to be an affine or constant expression.
end	the end of the interval. It needs to be an affine or constant expression.
name	the name of the interval variable

Returns: An IntervalVar object

Definition at line 820 of file CpModel.cs.

◆ NewIntVar()

IntVar Google.OrTools.Sat.CpModel.NewIntVar	(	long	lb,
		long	ub,
		string	name )

inline

Integer variables and constraints.

Creates an integer variable with domain [lb, ub].

Parameters

lb	the lower bound of the domain
ub	the upper bound of the domain
name	the name of the variable

Returns: a variable with the given domain

Definition at line 64 of file CpModel.cs.

◆ NewIntVarFromDomain()

IntVar Google.OrTools.Sat.CpModel.NewIntVarFromDomain	(	Domain	domain,
		string	name )

inline

Creates an integer variable with given domain.

Parameters

domain	an instance of the Domain class
name	the name of the variable

Returns: a variable with the given domain

Definition at line 78 of file CpModel.cs.

◆ NewOptionalFixedSizeIntervalVar< S >()

IntervalVar Google.OrTools.Sat.CpModel.NewOptionalFixedSizeIntervalVar< S >	(	S	start,
		long	size,
		ILiteral	is_present,
		string	name )

inline

Creates an optional interval variable from an affine expression start, a fixed size, and a literal is_present.

An interval variable is a constraint, that is itself used in other constraints like NoOverlap.

Parameters

start	the start of the interval. It needs to be an affine or constant expression. *
size	the fixed size of the interval
is_present	a literal that indicates if the interval is active or not. A inactive interval is simply ignored by all constraints.
name	the name of the interval variable

Returns: An IntervalVar object

Definition at line 907 of file CpModel.cs.

◆ NewOptionalIntervalVar< S, D, E >()

IntervalVar Google.OrTools.Sat.CpModel.NewOptionalIntervalVar< S, D, E >	(	S	start,
		D	size,
		E	end,
		ILiteral	is_present,
		string	name )

inline

Creates an optional interval variable from three affine expressions start, size, and end, and a literal is_present.

An interval variable is a constraint, that is itself used in other constraints like NoOverlap. Internally, it ensures that is_present ⇒ start + size == end.

Parameters

start	the start of the interval. It needs to be an affine or constant expression.
size	the size of the interval. It needs to be an affine or constant expression.
end	the end of the interval. It needs to be an affine or constant expression.
is_present	a literal that indicates if the interval is active or not. A inactive interval is simply ignored by all constraints.
name	the name of the interval variable

Returns: An IntervalVar object

Definition at line 877 of file CpModel.cs.

◆ TrueLiteral()

ILiteral Google.OrTools.Sat.CpModel.TrueLiteral ( )

inline

Returns a constant true literal.

Definition at line 108 of file CpModel.cs.

◆ Validate()

String Google.OrTools.Sat.CpModel.Validate ( )

inline

Returns a non empty string explaining the issue if the model is invalid.

Definition at line 1176 of file CpModel.cs.

Property Documentation

◆ Model

CpModelProto Google.OrTools.Sat.CpModel.Model

get

Getters.

The underlying CpModelProto.

Definition at line 40 of file CpModel.cs.

The documentation for this class was generated from the following file:

ortools/sat/csharp/CpModel.cs

Public Member Functions

Properties

Detailed Description

Constructor & Destructor Documentation

◆ CpModel()

Member Function Documentation

◆ Add()

◆ AddAbsEquality()

◆ AddAllDifferent()

◆ AddAllowedAssignments()

◆ AddAssumption()

◆ AddAssumptions()

◆ AddAtLeastOne()

◆ AddAtMostOne()

◆ AddAutomaton()

◆ AddBoolAnd()

◆ AddBoolOr()

◆ AddBoolXor()

◆ AddCircuit()

◆ AddCumulative< C >()

◆ AddDecisionStrategy()

◆ AddDivisionEquality< T, N, D >()

◆ AddElement() [1/3]

◆ AddElement() [2/3]

◆ AddElement() [3/3]

◆ AddExactlyOne()

◆ AddForbiddenAssignments()

◆ AddHint() [1/2]

◆ AddHint() [2/2]

◆ AddImplication()

◆ AddInverse()

◆ AddLinearConstraint()

◆ AddLinearExpressionInDomain()

◆ AddMapDomain()

◆ AddMaxEquality()

◆ AddMinEquality()

◆ AddModuloEquality< T, V, M >()

◆ AddMultipleCircuit()

◆ AddMultiplicationEquality() [1/2]

◆ AddMultiplicationEquality() [2/2]

◆ AddNoOverlap()

◆ AddNoOverlap2D()

◆ AddReservoirConstraint()

◆ ClearAssumptions()

◆ ClearHints()

◆ ExportToFile()

◆ FalseLiteral()

◆ Maximize()

◆ Minimize()

◆ ModelStats()

◆ NewBoolVar()

◆ NewConstant()

◆ NewFixedSizeIntervalVar< S >()

◆ NewIntervalVar< S, D, E >()

◆ NewIntVar()

◆ NewIntVarFromDomain()

◆ NewOptionalFixedSizeIntervalVar< S >()

◆ NewOptionalIntervalVar< S, D, E >()

◆ TrueLiteral()

◆ Validate()

Property Documentation

◆ Model