Class IloBox

Definition file: ilconcert/ilobox.h

A class of multidimensional boxes for multidimensional placement problems.

Instances of the class IloBox are multidimensional boxes that appear in multidimensional placement problems. To solve packing or placement problems, you may need to be able to place boxes within a given container. In such a situation, both the boxes to place and the container to hold them are instances of the class IloBox.

To specify the containment relation that a given container holds a given box, use the member function IloBox::contains.

Constructor Summary
`public`	`IloBox()`
`public`	`IloBox(IloBox::ImplClass *)`
`public`	`IloBox(const IloEnv, IloInt, const IloIntVarArray, const IloIntArray)`

Method Summary
`public IloConstraint`	`contains(IloBox)`
`public IloInt`	`getDimensions()`
`public IloBox::ImplClass *`	`getImpl()`
`public IloConstraint`	`getNotOverlapConstraint()`
`public IloIntVar`	`getOrigin(IloInt)`
`public IloInt`	`getSize(IloInt)`
`public IloConstraint`	`notOverlapInDimension(IloBox, IloBox, IloInt)`
`public IloConstraint`	`overlapInDimension(IloBox, IloBox, IloInt)`
`public IloConstraint`	`precedenceInDimension(IloBox, IloBox, IloInt)`

Inherited Methods from `IloConstraint`
`getImpl`

Inherited Methods from `IloIntExprArg`
`getImpl`

Inherited Methods from `IloNumExprArg`
`getImpl`

Inherited Methods from `IloExtractable`
`end, getEnv, getId, getImpl, getName, getObject, setName, setObject`

IloBox

public IloBox()

This constructor creates an empty handle. You must initialize it before you use it.

IloBox

public IloBox(IloBox::ImplClass * impl)

This constructor creates a handle object from a pointer to an implementation object.

IloBox

public IloBox(const IloEnv env, IloInt dimensions, const IloIntVarArray origin, const IloIntArray size)

This constructor creates a box according to the specifications passed in the parameters. The parameter dimensions indicates the number of dimensions the box has. The arrays origin and size must contain the same number of elements as the number of dimensions of the box. In dimension i, the box extends from origin[i] to origin[i] + size[i]. For example, the statement

 IloBox(env, 2, IloNumVarArray (env, 2, 3, 0), IloNumArray(env, 2, 8, 4));

creates a box as shown in this illustration.

Method Detail

contains

public IloConstraint contains(IloBox box)

This member function creates a constraint that requires the invoking box to contain box. The parameter box should have the same number of dimensions as the invoking box.

getDimensions

public IloInt getDimensions()

This member function returns the number of dimensions of the invoking box.

getImpl

public IloBox::ImplClass * getImpl()

This member function returns a pointer to the implementation object of the invoking handle.

getNotOverlapConstraint

public IloConstraint getNotOverlapConstraint()

This member function returns a constraint that specifies that none of the boxes contained in the invoking box can overlap along any of their dimensions.

The filter level of this constraint can be set using IloSolver::setFilterLevel. Currently two filter levels are allowed, IlcBasic, the default, and IlcMedium, which is slower but propagates more. You can specify the default filter level of this constraint using the method IloSolver::setDefaultFilterLevel. Refer to the ILOG Solver Reference Manual for details about these methods.