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-- File: Domain.cdl
-- Created: Thu Mar 5 09:45:19 1992
-- Author: Laurent BUCHARD
-- <lbr@phobox>
---Copyright: Matra Datavision 1992
class Domain from IntRes2d
---Purpose: Definition of the domain of parameter on a 2d-curve.
-- Most of the time, a domain is defined by two extremities.
-- An extremity is made of :
-- - a point in 2d-space (Pnt2d from gp),
-- - a parameter on the curve,
-- - a tolerance in the 2d-space.
-- Sometimes, it can be made of 0 or 1 point ( for an infinite
-- or semi-infinite line for example).
--
-- For Intersection algorithms, Ellipses and Circles
-- Domains must be closed.
-- So, SetEquivalentParameters(.,.) method must be called
-- after initializing the first and the last bounds.
uses Pnt2d from gp
raises DomainError from Standard
is
Create
---Purpose: Creates an infinite Domain (HasFirstPoint = False
-- and HasLastPoint = False).
returns Domain from IntRes2d;
Create(Pnt1: Pnt2d from gp;
Par1: Real from Standard;
Tol1: Real from Standard;
Pnt2: Pnt2d from gp;
Par2: Real from Standard;
Tol2: Real from Standard)
---Purpose: Creates a bounded Domain.
returns Domain from IntRes2d;
Create(Pnt: Pnt2d from gp;
Par: Real from Standard;
Tol: Real from Standard;
First: Boolean from Standard)
---Purpose: Creates a semi-infinite Domain. If First is set to
-- True, the given point is the first point of the domain,
-- otherwise it is the last point.
returns Domain from IntRes2d;
SetValues(me: in out;
Pnt1: Pnt2d from gp;
Par1: Real from Standard;
Tol1: Real from Standard;
Pnt2: Pnt2d from gp;
Par2: Real from Standard;
Tol2: Real from Standard)
---Purpose: Sets the values for a bounded domain.
is static;
SetValues(me: in out)
---Purpose : Sets the values for an infinite domain.
is static;
SetValues(me: in out;
Pnt: Pnt2d from gp;
Par: Real from Standard;
Tol: Real from Standard;
First: Boolean from Standard)
---Purpose: Sets the values for a semi-infinite domain.
is static;
SetEquivalentParameters(me: in out; zero,period: Real from Standard)
---Purpose: Defines a closed domain.
---C++: inline
is static;
HasFirstPoint(me)
---Purpose: Returns True if the domain has a first point, i-e
-- a point defining the lowest admitted parameter on the
-- curve.
---C++: inline
returns Boolean from Standard
is static;
FirstParameter(me)
---Purpose: Returns the parameter of the first point of the domain
-- The exception DomainError is raised if HasFirstPoint
-- returns False.
---C++: inline
returns Real from Standard
raises DomainError from Standard
is static;
FirstPoint(me)
---Purpose: Returns the first point of the domain.
-- The exception DomainError is raised if HasFirstPoint
-- returns False.
---C++: inline
---C++: return const &
returns Pnt2d from gp
raises DomainError from Standard
is static;
FirstTolerance(me)
---Purpose: Returns the tolerance of the first (left) bound.
-- The exception DomainError is raised if HasFirstPoint
-- returns False.
---C++: inline
returns Real from Standard
raises DomainError from Standard
is static;
HasLastPoint(me)
---Purpose: Returns True if the domain has a last point, i-e
-- a point defining the highest admitted parameter on the
-- curve.
---C++: inline
returns Boolean from Standard
is static;
LastParameter(me)
---Purpose: Returns the parameter of the last point of the domain.
-- The exception DomainError is raised if HasLastPoint
-- returns False.
---C++: inline
returns Real from Standard
raises DomainError from Standard
is static;
LastPoint(me)
---Purpose: Returns the last point of the domain.
-- The exception DomainError is raised if HasLastPoint
-- returns False.
---C++: inline
---C++: return const &
returns Pnt2d from gp
raises DomainError from Standard
is static;
LastTolerance(me)
---Purpose: Returns the tolerance of the last (right) bound.
-- The exception DomainError is raised if HasLastPoint
-- returns False.
---C++: inline
returns Real from Standard
raises DomainError from Standard
is static;
IsClosed(me)
---Purpose: Returns True if the domain is closed.
---C++: inline
returns Boolean from Standard
is static;
EquivalentParameters(me; zero,zeroplusperiod:out Real from Standard)
---Purpose: Returns Equivalent parameters if the domain is closed.
-- Otherwise, the exception DomainError is raised.
---C++: inline
raises DomainError from Standard
is static;
fields
status : Integer from Standard;
----------------------------------------
-- Bit 0 : HasFist
-- Bit 1 : HasLast
-- Bit 2 : Closed
----------------------------------------
first_param : Real from Standard;
last_param : Real from Standard;
first_tol : Real from Standard;
last_tol : Real from Standard;
first_point : Pnt2d from gp;
last_point : Pnt2d from gp;
periodfirst : Real from Standard;
periodlast : Real from Standard;
end Domain;
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