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-- File: IntQuadQuad.cdl
-- Created: Wed May 15 14:31:58 1991
-- Author: Isabelle GRIGNON
-- <isg@topsn3>
---Copyright: Matra Datavision 1991, 1992
class IntQuadQuad from IntAna
---Purpose: This class provides the analytic intersection between a
-- cylinder or a cone from gp and another quadric, as defined
-- in the class Quadric from IntAna.
-- This algorithm is used when the geometric intersection
-- (class QuadQuadGeo from IntAna) returns no geometric
-- solution.
-- The result of the intersection may be
-- - Curves as defined in the class Curve from IntAna
-- - Points (Pnt from gp)
uses Cylinder from gp,
Cone from gp,
Quadric from IntAna,
Curve from IntAna,
Pnt from gp
raises OutOfRange from Standard,
NotDone from StdFail,
DomainError from Standard
is
Create
---Purpose: Empty Constructor
returns IntQuadQuad from IntAna;
Create(C: Cylinder from gp; Q: Quadric from IntAna;
Tol: Real from Standard)
---Purpose: Creates the intersection between a cylinder and a quadric .
-- Tol est a definir plus precisemment.
returns IntQuadQuad from IntAna;
Create(C: Cone from gp; Q: Quadric from IntAna;
Tol: Real from Standard)
---Purpose: Creates the intersection between a cone and a quadric.
-- Tol est a definir plus precisemment.
returns IntQuadQuad from IntAna;
Perform(me: in out; C: Cylinder from gp; Q: Quadric from IntAna;
Tol: Real from Standard)
---Purpose: Intersects a cylinder and a quadric .
-- Tol est a definir plus precisemment.
is static;
Perform(me: in out; C: Cone from gp; Q: Quadric from IntAna;
Tol: Real from Standard)
---Purpose: Intersects a cone and a quadric.
-- Tol est a definir plus precisemment.
is static;
IsDone(me)
---Purpose: Returns True if the computation was successful.
--
---C++: inline
returns Boolean from Standard
is static;
IdenticalElements(me)
---Purpose: Returns TRUE if the cylinder, the cone or the sphere
-- is identical to the quadric.
--
---C++: inline
returns Boolean from Standard
raises NotDone from StdFail
-- The exception NotDone is raised if IsDone returns False.
is static;
NbCurve(me)
---Purpose: Returns the number of curves solution.
--
---C++: inline
returns Integer from Standard
raises NotDone from StdFail,
DomainError from Standard
-- The exception NotDone is raised if IsDone returns False.
-- The exception DomainError is raised if IdenticalElements
-- returns True.
is static;
Curve(me; N: Integer from Standard)
---Purpose: Returns the curve of range N.
--
---C++: return const&
returns Curve from IntAna
raises NotDone from StdFail,
DomainError from Standard,
OutOfRange from Standard
-- The exception NotDone is raised if IsDone returns False.
-- The exception DomainError is raised if IdenticalElements
-- returns True.
-- The exception OutOfRange is raised if N<=0 or N>NbCurve.
is static;
NbPnt(me)
---Purpose: Returns the number of contact point.
--
---C++: inline
returns Integer from Standard
raises NotDone from StdFail,
DomainError from Standard
-- The exception NotDone is raised if IsDone returns False.
-- The exception DomainError is raised if IdenticalElements
-- returns True.
is static;
Point(me; N: Integer from Standard)
---Purpose: Returns the point of range N.
--
---C++: return const&
returns Pnt from gp
raises NotDone from StdFail,
DomainError from Standard,
OutOfRange from Standard
-- The exception NotDone is raised if IsDone returns False.
-- The exception DomainError is raised if IdenticalElements
-- returns True.
-- The exception OutOfRange is raised if N<=0 or N>NbPnt.
is static;
Parameters(me; N: Integer from Standard;
U1,U2: out Real from Standard)
---Purpose: Returns the paramaters on the "explicit quadric"
-- (i.e the cylinder or the cone, the
-- first argument given to the constructor) of the
-- point of range N.
raises NotDone from StdFail,
DomainError from Standard,
OutOfRange from Standard
-- The exception NotDone is raised if IsDone returns False.
-- The exception DomainError is raised if IdenticalElements
-- returns True.
-- The exception OutOfRange is raised if N<=0 or N>NbPnt.
is static;
HasNextCurve(me; I: Integer from Standard)
---Purpose: Returns True if the Curve I shares its last bound
-- with another curve.
returns Boolean from Standard
raises NotDone from StdFail,
DomainError from Standard,
OutOfRange from Standard
-- The exception NotDone is raised if IsDone returns False.
-- The exception DomainError is raised if IdenticalElements
-- returns True.
-- The exception OutOfRange is raised if N<=0 or N>NbCurve.
is static;
NextCurve(me; I : Integer from Standard;
Opposite : in out Boolean from Standard)
---Purpose: If HasNextCurve(I) returns True, this function
-- returns the Index J of the curve which has a
-- common bound with the curve I. If Opposite ==
-- True , then the last parameter of the curve I, and
-- the last parameter of the curve J give the same
-- point. Else the last parameter of the curve I and
-- the first parameter of the curve J are the same
-- point.
returns Integer from Standard
raises NotDone from StdFail,
DomainError from Standard,
OutOfRange from Standard
-- The exception NotDone is raised if IsDone returns False.
-- The exception DomainError is raised if IdenticalElements
-- returns True. It is also raised when HasNextCurve returns
-- False.
-- The exception OutOfRange is raised if N<=0 or N>NbCurve.
is static;
HasPreviousCurve(me; I: Integer from Standard)
---Purpose: Returns True if the Curve I shares its first bound
-- with another curve.
returns Boolean from Standard
raises NotDone from StdFail,
DomainError from Standard,
OutOfRange from Standard
-- The exception NotDone is raised if IsDone returns False.
-- The exception DomainError is raised if IdenticalElements
-- returns True.
-- The exception OutOfRange is raised if N<=0 or N>NbCurve.
is static;
PreviousCurve(me; I : Integer from Standard;
Opposite : in out Boolean from Standard)
---Purpose: if HasPreviousCurve(I) returns True, this function
-- returns the Index J of the curve which has a
-- common bound with the curve I. If Opposite ==
-- True , then the first parameter of the curve I,
-- and the first parameter of the curve J give the
-- same point. Else the first parameter of the curve
-- I and the last parameter of the curve J are the
-- same point.
returns Integer from Standard
raises NotDone from StdFail,
DomainError from Standard,
OutOfRange from Standard
-- The exception NotDone is raised if IsDone returns False.
-- The exception DomainError is raised if IdenticalElements
-- returns True. It is also raised when HasPreviousCurve
-- returns False.
-- The exception OutOfRange is raised if N<=0 or N>NbCurve.
is static;
InternalSetNextAndPrevious(me: in out)
---Purpose: Set the next and previous fields. Private method.
is static protected;
fields
done : Boolean from Standard is protected;
identical : Boolean from Standard is protected;
TheCurve : Curve from IntAna [12] is protected;
previouscurve : Integer from Standard [12] is protected;
nextcurve : Integer from Standard [12] is protected;
NbCurves : Integer from Standard is protected;
Nbpoints : Integer from Standard is protected;
Thepoints : Pnt from gp [2] is protected;
--
myNbMaxCurves : Integer from Standard is protected;
myEpsilon : Real from Standard is protected;
myEpsilonCoeffPolyNull : Real from Standard is protected;
end IntQuadQuad;
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