Package org.jacop.constraints

Class Disjoint

java.lang.Object
org.jacop.constraints.DecomposedConstraint<Constraint>
org.jacop.constraints.Constraint
org.jacop.constraints.Diff
org.jacop.constraints.Disjoint
All Implemented Interfaces:
SatisfiedPresent, Stateful, UsesQueueVariable
public class Disjoint extends Diff
Disjoint constraint assures that any two rectangles from a vector of rectangles does not overlap in at least one direction.

Zero-width rectangles does not overlap with any other rectangle.

Version:
4.10

  • Field Details

  • Constructor Details

    • Disjoint

      public Disjoint(Rectangle[] rectangles, boolean doProfile)
      Parameters:
      rectangles - a list of rectangles.
      doProfile - should profile be computed and used.

    • Disjoint

      public Disjoint(List<? extends IntVar> o1, List<? extends IntVar> o2, List<? extends IntVar> l1, List<? extends IntVar> l2, boolean profile)
      It creates a diff2 constraint.
      Parameters:
      o1 - list of variables denoting the origin in the first dimension.
      o2 - list of variables denoting the origin in the second dimension.
      l1 - list of variables denoting the length in the first dimension.
      l2 - list of variables denoting the length in the second dimension.
      profile - specifies if the profile should be computed.

    • Disjoint

      public Disjoint(List<? extends List<? extends IntVar>> rectangles)
      It creates a diff2 constraint.
      Parameters:
      rectangles - list of rectangles with origins and lengths in both dimensions.

    • Disjoint

      public Disjoint(List<? extends List<? extends IntVar>> rectangles, boolean profile)
      It creates a diff2 constraint.
      Parameters:
      rectangles - list of rectangles with origins and lengths in both dimensions.
      profile - specifies if the profile is computed and used.

    • Disjoint

      public Disjoint(List<? extends IntVar> o1, List<? extends IntVar> o2, List<? extends IntVar> l1, List<? extends IntVar> l2)
      It creates a diff2 constraint.
      Parameters:
      o1 - list of variables denoting the origin in the first dimension.
      o2 - list of variables denoting the origin in the second dimension.
      l1 - list of variables denoting the length in the first dimension.
      l2 - list of variables denoting the length in the second dimension.

    • Disjoint

      public Disjoint(IntVar[] origin1, IntVar[] origin2, IntVar[] length1, IntVar[] length2)
      It creates a diff2 constraint.
      Parameters:
      origin1 - list of variables denoting the origin in the first dimension.
      origin2 - list of variables denoting the origin in the second dimension.
      length1 - list of variables denoting the length in the first dimension.
      length2 - list of variables denoting the length in the second dimension.

    • Disjoint

      public Disjoint(IntVar[] o1, IntVar[] o2, IntVar[] l1, IntVar[] l2, boolean profile)
      It creates a diff2 constraint.
      Parameters:
      o1 - list of variables denoting the origin in the first dimension.
      o2 - list of variables denoting the origin in the second dimension.
      l1 - list of variables denoting the length in the first dimension.
      l2 - list of variables denoting the length in the second dimension.
      profile - specifies if the profile should be computed.

    • Disjoint

      public Disjoint(IntVar[][] rectangles)
      It creates a diff2 constraint.
      Parameters:
      rectangles - list of rectangles with origins and lengths in both dimensions.

    • Disjoint

      public Disjoint(IntVar[][] rectangles, boolean profile)
      It creates a diff2 constraint.
      Parameters:
      rectangles - list of rectangles with origins and lengths in both dimensions.
      profile - specifies if the profile is computed and used.

  • Method Details

    • impose

      public void impose(Store store)
      Description copied from class: Constraint
      It imposes the constraint in a given store.
      Overrides:
      impose in class Constraint
      Parameters:
      store - the constraint store to which the constraint is imposed to.

    • narrowRectangles

      void narrowRectangles(Set<IntVar> fdvQueue)
      Overrides:
      narrowRectangles in class Diff

    • findRectangles

      private boolean findRectangles(Rectangle r, int index, List<IntRectangle> UsedRect, List<Rectangle> ProfileCandidates, List<Rectangle> OverlappingRects, Set<IntVar> fdvQueue)

    • profileNarrowing

      void profileNarrowing(int i, Rectangle r, List<Rectangle> ProfileCandidates)
      Overrides:
      profileNarrowing in class Diff

    • satisfied

      public boolean satisfied()
      Description copied from interface: SatisfiedPresent
      It checks if the constraint is satisfied. It can return false even if constraint is satisfied but not all variables in its scope are grounded. It needs to return true if all variables in its scope are grounded and constraint is satisfied.

      Implementations of this interface for constraints that are not PrimitiveConstraint may require constraint imposition and consistency check as a requirement to work correctly.

      Specified by:
      satisfied in interface SatisfiedPresent
      Overrides:
      satisfied in class Diff
      Returns:
      true if constraint is possible to verify that it is satisfied.

    • toString

      public String toString()
      Description copied from class: Constraint
      It produces a string representation of a constraint state.
      Overrides:
      toString in class Diff