SWI-Prolog -- Constraints

Documentation
- Reference manual
- Packages
  - XPCE
    - Topics
      - Topics
        
        Activating commands
        
        Arithmetic
        
        Atom
        
        Attic
        
        Attributes
        
        Automatic layout
        
        Calling Prolog
        
        Changes
        
        Checking
        
        Class Hierarchy
        
        Class-level Programming
        
        Classes
        
        Classes
        
        Collections
        
        Commanders
        
        Compound
        
        Compound Graphicals
        
        Conditions
        
        Connections
        
        Constraints
        
        Contents
        
        Conversion
        
        Creating Objects
        
        Current
        
        Data Representation
        
        Debugging
        
        Defining Classes
        
        Delegation
        
        Dialog windows
        
        Dialogs
        
        Directives
        
        Editors
        
        Enumerate
        
        Environment
        
        Errors
        
        Event dispatching
        
        Event types
        
        Events
        
        Events
        
        Events vs. Messages
        
        Exceptions
        
        Exceptions
        
        Executable Objects
        
        Finding References
        
        Garbage collection
        
        Gestures
        
        Get Method
        
        Global Objects
        
        Global references
        
        Graphics
        
        Graphics Devices
        
        Handles
        
        Handling Events
        
        Host Interface
        
        Inspector
        
        Integer
        
        Interface to Prolog
        
        Kloning objects
        
        Link to application
        
        Linking Graphicals
        
        Loading objects
        
        Manual
        
        Methods
        
        Methods
        
        Naming conventions
        
        Object -> Term
        
        Object Management
        
        Object-level Programming
        
        Obtainers
        
        Overview
        
        Parameters
        
        Predicates
        
        Primitive Graphics
        
        Primitive Types
        
        Primitives
        
        Principal
        
        Programming
        
        Programming PCE
        
        Programming Style
        
        Prolog Interface
        
        Relating Attributes
        
        Removing Objects
        
        Resource Conversions
        
        Resources
        
        Resources
        
        Resources
        
        Saving to File
        
        Send Methods
        
        Specification
        
        Examples
        
        Tables
        
        Techniques
        
        Term -> Object
        
        Text
        
        Text Entry Fields
        
        Text Manipulation
        
        Text as Graphics
        
        The PCE environment
        
        The compiler
        
        Term expansion and operators
        
        Constructing the prolog head and the send_method
        
        Example
        
        The display
        
        Tracing
        
        Types
        
        Examples
        
        Types
        
        Typing
        
        Unix
        
        User Interface
        
        Using menu's
        
        Utilities
        
        Variables
        
        Variables
        
        Visual Hierarchy
        
        Warnings
        
        Warnings
        
        Window Layout
        
        Window Manager
        
        Windows
        
        X-windows
        
        hostAction()
        
        hostQuery()
        
        new/2
        
        predicates

2.1.20 Constraints

Constraints between object pairs

Parent: Class Hierarchy

Subtopics: Linking Graphicals, Relating Attributes