-- Created on: 2012-12-17
-- Created by: Eugeny MALTCHIKOV
-- Copyright (c) 2012-2014 OPEN CASCADE SAS
--
-- This file is part of Open CASCADE Technology software library.
--
-- This library is free software; you can redistribute it and/or modify it under
-- the terms of the GNU Lesser General Public License version 2.1 as published
-- by the Free Software Foundation, with special exception defined in the file
-- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
-- distribution for complete text of the license and disclaimer of any warranty.
--
-- Alternatively, this file may be used under the terms of Open CASCADE
-- commercial license or contractual agreement.

class Check from BRepAlgoAPI
    ---Purpose:  
    -- The class Check provides a diagnostic tool for checking  
    -- single shape or couple of shapes. 
    -- Single shape is checking on topological validity, small edges  
    -- and self-interference. For couple of shapes added check 
    -- on validity for boolean operation of given type.
    -- 
    -- The class provides two ways of checking shape(-s)
    -- 1. Constructors 
    --    BRepAlgoAPI_Check aCh(theS); 
    --    Standard_Boolean bV=aCh.IsValid();     
    -- 2. Methods SetData and Perform 
    --    BRepAlgoAPI_Check aCh; 
    --    aCh.SetData(theS1, theS2, BOPAlgo_FUSE, Standard_False); 
    --    aCh.Perform(); 
    --    Standard_Boolean bV=aCh.IsValid();     
 
uses 
    Shape from TopoDS, 
    Operation from BOPAlgo, 
    PArgumentAnalyzer from BOPAlgo, 
    ListOfCheckResult from BOPAlgo
 
is
    Create  
    returns Check from BRepAlgoAPI; 
    ---C++: alias "Standard_EXPORT virtual ~BRepAlgoAPI_Check();"  
    ---Purpose:  Empty constructor. 
     
    Create( 
        theS   : Shape   from TopoDS; 
        bTestSE : Boolean from Standard = Standard_True; 
        bTestSI : Boolean from Standard = Standard_True) 
    returns Check from BRepAlgoAPI;  
    ---Purpose:  Constructor for checking single shape. 
    -- It calls methods  
    -- Init(theS, TopoDS_Shape(), BOPAlgo_UNKNOWN, bTestSE, bTestSI) 
    -- and Perform().
    -- Params:   
    --  theS   - the shape that should be checked; 
    --  bTestSE - flag that specifies whether check on small edges  
    --            should be performed; by default it is set to TRUE;
    --  bTestSI - flag that specifies whether check on self-interference 
    --            should be performed; by default it is set to TRUE;
     
    Create( 
        theS1   : Shape     from TopoDS; 
        theS2   : Shape     from TopoDS; 
        theOp   : Operation from BOPAlgo = BOPAlgo_UNKNOWN;
        bTestSE : Boolean   from Standard = Standard_True; 
        bTestSI : Boolean   from Standard = Standard_True) 
    returns Check from BRepAlgoAPI; 
    ---Purpose: Constructor for couple of shapes.  
    -- It calls methods  
    -- Init(theS1, theS2, theOp, bTestSE, bTestSI) and Perform().
    -- Params: 
    --  theS1, theS2 - the initial shapes. 
    --  theOp - the type of Boolean Operation; 
    --          if it is not defined (set to UNKNOWN) for each shape
    --          performed check as for single shape. 
    --  bTestSE - flag that specifies whether check on small edges  
    --            should be performed; by default it is set to TRUE;
    --  bTestSI - flag that specifies whether check on self-interference 
    --            should be performed; by default it is set to TRUE; 
      
    Init(me:out; 
        theS1   : Shape     from TopoDS; 
        theS2   : Shape     from TopoDS; 
        theOp   : Operation from BOPAlgo;
        bTestSE : Boolean   from Standard; 
        bTestSI : Boolean   from Standard)
      is protected;  
    ---Purpose: Initialyzes data.
 
    SetData(me:out; 
        theS   : Shape   from TopoDS; 
        bTestSE : Boolean from Standard = Standard_True; 
        bTestSI : Boolean from Standard = Standard_True);
    ---Purpose: Sets data for check by Init method.
    -- The method provides alternative way for checking single shape. 
     
    SetData(me:out; 
        theS1   : Shape     from TopoDS; 
        theS2   : Shape     from TopoDS; 
        theOp   : Operation from BOPAlgo = BOPAlgo_UNKNOWN;
        bTestSE : Boolean   from Standard = Standard_True; 
        bTestSI : Boolean   from Standard = Standard_True);
    ---Purpose: Sets data for check by Init method.
    -- The method provides alternative way for checking couple of shapes.
    
    Perform(me:out);
    ---Purpose: Performs the check. 
     
    IsValid(me:out) 
      returns Boolean from Standard; 
    ---Purpose: Shows whether shape(s) valid or not. 
     
    Result(me:out) 
      returns ListOfCheckResult from BOPAlgo;  
    ---C++: return const&
    ---Purpose: Returns faulty shapes.
    
fields  
  myS1, myS2 : Shape from TopoDS is protected;  
  myAnalyzer : PArgumentAnalyzer from BOPAlgo is protected;
  myResult   : ListOfCheckResult from BOPAlgo is protected;
   
end BooleanOperation;