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-- File: QualifiedLin.cdl
-- Created: Mon Apr 15 15:19:09 1991
-- Author: Philippe DAUTRY
-- <fid@phobox>
---Copyright: Matra Datavision 1991
class QualifiedLin
from GccEnt
inherits Storable from Standard
--- Purpose: Describes a qualified 2D line.
-- A qualified 2D line is a line (gp_Lin2d line) with a
-- qualifier which specifies whether the solution of a
-- construction algorithm using the qualified line (as an argument):
-- - is 'enclosed' by the line, or
-- - is built so that both the line and it are external to one another, or
-- - is undefined (all solutions apply).
-- Note: the interior of a line is defined as the left-hand
-- side of the line in relation to its orientation (i.e. when
-- moving from the start to the end of the curve).
uses Position from GccEnt,
Lin2d from gp
is
Create(Qualified : Lin2d from gp ;
Qualifier : Position from GccEnt )
returns QualifiedLin from GccEnt;
---Purpose:
-- Constructs a qualified line by assigning the qualifier
-- Qualifier to the line Qualified.
-- Qualifier may be:
-- - GccEnt_enclosed if the solution is enclosed by the line, or
-- - GccEnt_outside if both the solution and the line are external to one another, or
-- - GccEnt_unqualified if all solutions apply.
-- Note : the interior of a line is defined as the left-hand
-- side of the line in relation to its orientation.
Qualified(me) returns Lin2d from gp
is static;
---Purpose: Returns a 2D line to which the qualifier is assigned.
Qualifier(me) returns Position from GccEnt
is static;
---Purpose:
-- Returns the qualifier of this qualified line, if it is "enclosed" or
-- "outside", or
-- - GccEnt_noqualifier if it is unqualified.
IsUnqualified(me) returns Boolean from Standard
is static;
---Purpose: Returns true if the solution is unqualified and false in
-- the other cases.
IsEnclosed(me) returns Boolean from Standard
is static;
---Purpose: Returns true if the solution is Enclosed in the Lin2d and false in
-- the other cases.
IsOutside(me) returns Boolean from Standard
is static;
---Purpose: Returns true if the solution is Outside the Lin2d and false in
-- the other cases.
fields
TheQualifier : Position from GccEnt;
TheQualified : Lin2d from gp;
--friends
--Unqualified(Obj : Lin2d) from GccEnt,
--Enclosed (Obj : Lin2d) from GccEnt,
--Outside (Obj : Lin2d) from GccEnt
end QualifiedLin;
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