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-- File: IWLine.cdl
-- Created: Wed Mar 25 15:16:53 1992
-- Author: Isabelle GRIGNON
-- <isg@sdsun4>
---Copyright: Matra Datavision 1992
generic class IWLine from IntWalk
(TheStartPoint as any)
inherits TShared from MMgt
---Purpose: Definition of a polyline resulting of the IWalking algoritm.
-- Each point verifies :
-- F(x(u,v),y(u,v),z(u,v))=0, F=implicit function.
-- (x(u,v),y(u,v),z(u,v)) point on a parametric surface.
-- This polyline is computed marching from a starting a point
-- located on the surface 's boundary or inside the surface
-- domain.
-- a marching status is returned:
-- ok --> the polyline starts and ends on a marching
-- point
-- tangent --> the polyline ends on a tangent point
-- outside the boundaries --> the polyline is outside the
-- surface 's boundaries .it ends on the natural boundaries
-- because no marching points where found to stop
-- beware : the directions are not oriented.
uses Couple from IntSurf,
SequenceOfCouple from IntSurf,
PntOn2S from IntSurf,
LineOn2S from IntSurf,
Vec from gp
raises OutOfRange from Standard,
DomainError from Standard
is
Create
returns mutable IWLine;
Reverse(me : mutable)
---Purpose: reverse the points in the line. Hasfirst, HasLast are kept.
is static;
Cut(me : mutable; Index : Integer from Standard)
---Purpose: Cut the line at the point of rank Index.
---C++: inline
is static;
AddPoint(me : mutable; P : PntOn2S from IntSurf)
---Purpose: Add a point in the line.
---C++: inline
is static;
AddStatusFirst(me : mutable; Closed, HasFirst : Boolean from Standard)
---Purpose:
---C++: inline
is static;
AddStatusFirst(me : mutable; Closed, HasLast : Boolean from Standard;
Index : Integer from Standard;
P : TheStartPoint)
---Purpose:
---C++: inline
is static;
AddStatusFirstLast(me : mutable;
Closed, HasFirst, HasLast: Boolean from Standard)
---Purpose:
---C++: inline
is static;
AddStatusLast(me : mutable; HasLast : Boolean from Standard)
---Purpose:
---C++: inline
is static;
AddStatusLast(me : mutable; HasLast : Boolean from Standard;
Index : Integer from Standard;
P : TheStartPoint)
---Purpose:
---C++: inline
is static;
AddIndexPassing(me : mutable; Index : Integer from Standard)
---Purpose: associer a l 'indice du point sur la ligne l'indice du point
-- passant dans l'iterateur de depart
---C++: inline
is static;
SetTangentVector(me: mutable; V: Vec from gp;
Index: Integer from Standard)
---C++: inline
is static;
SetTangencyAtBegining(me: mutable; IsTangent: Boolean from Standard)
---C++: inline
is static;
SetTangencyAtEnd(me: mutable; IsTangent: Boolean from Standard)
---C++: inline
is static;
NbPoints(me)
---Purpose: Returns the number of points of the line (including first
-- point and end point : see HasLastPoint and HasFirstPoint).
returns Integer from Standard
---C++: inline
is static;
Value(me; Index: Integer from Standard)
---Purpose: Returns the point of range Index.
-- If index <= 0 or Index > NbPoints, an exception is raised.
returns PntOn2S from IntSurf
---C++: return const&
---C++: inline
raises OutOfRange from Standard
is static;
Line(me)
---Purpose: Returns the LineOn2S contained in the walking line.
returns mutable LineOn2S from IntSurf
---C++: return const&
---C++: inline
is static;
IsClosed(me)
---Purpose: Returns True if the line is closed.
returns Boolean from Standard
---C++: inline
is static;
HasFirstPoint(me)
---Purpose: Returns True if the first point of the line is a
-- marching point . when is HasFirstPoint==False ,the line
-- begins on the natural bound of the surface.the line can be
-- too long
returns Boolean from Standard
---C++: inline
is static;
HasLastPoint(me)
---Purpose: Returns True if the end point of the line is a
-- marching point (Point from IntWS).
-- when is HasFirstPoint==False ,the line ends
-- on the natural bound of the surface.the line can be
-- too long.
returns Boolean from Standard
---C++: inline
is static;
FirstPoint(me)
---Purpose: Returns the first point of the line when it is a
-- marching point.
-- An exception is raised if HasFirstPoint returns False.
returns any TheStartPoint
---C++: return const&
---C++: inline
raises DomainError from Standard
is static;
FirstPointIndex(me)
---Purpose: Returns the Index of first point of the line when it is a
-- marching point.This index is the index in the
-- PointStartIterator.
-- An exception is raised if HasFirstPoint returns False.
returns Integer from Standard
---C++: inline
raises DomainError from Standard
is static;
LastPoint(me)
---Purpose: Returns the last point of the line when it is a
-- marching point.
-- An exception is raised if HasLastPoint returns False.
returns any TheStartPoint
---C++: return const&
---C++: inline
raises DomainError from Standard
is static;
LastPointIndex(me)
---Purpose: Returns the index of last point of the line when it is a
-- marching point.This index is the index in the
-- PointStartIterator.
-- An exception is raised if HasLastPoint returns False.
returns Integer from Standard
---C++: inline
raises DomainError from Standard
is static;
NbPassingPoint(me)
---Purpose: returns the number of points belonging to Pnts1 which are
-- passing point.
returns Integer from Standard
---C++: inline
is static;
PassingPoint(me; Index: Integer from Standard;
IndexLine, IndexPnts : out Integer from Standard)
---Purpose: returns the index of the point belonging to the line which
-- is associated to the passing point belonging to Pnts1
-- an exception is raised if Index > NbPassingPoint()
raises OutOfRange from Standard
---C++: inline
is static;
TangentVector(me; Index: out Integer from Standard)
returns Vec from gp
---C++: return const&
---C++: inline
is static;
IsTangentAtBegining(me)
returns Boolean from Standard
---C++: inline
is static;
IsTangentAtEnd(me)
returns Boolean from Standard
---C++: inline
is static;
fields
line : LineOn2S from IntSurf;
couple : SequenceOfCouple from IntSurf;
closed : Boolean from Standard;
hasFirst : Boolean from Standard;
hasLast : Boolean from Standard;
firstIndex : Integer from Standard;
lastIndex : Integer from Standard;
theFirstPoint : TheStartPoint;
theLastPoint : TheStartPoint;
indextg : Integer from Standard;
vcttg : Vec from gp;
istgtbeg : Boolean from Standard;
istgtend : Boolean from Standard;
end IWLine;
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