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--
-- File : TrimmedSurface.cdl
-- Created : Sat 9 Jan 1993
-- Author : CKY / Contract Toubro-Larsen ( Kiran )
--
---Copyright : MATRA-DATAVISION 1993
--
class TrimmedSurface from IGESGeom inherits IGESEntity
---Purpose: defines IGESTrimmedSurface, Type <144> Form <0>
-- in package IGESGeom
-- A simple closed curve in Euclidean plane divides the
-- plane in to two disjoint, open connected components; one
-- bounded, one unbounded. The bounded one is called the
-- interior region to the curve. Unbounded component is called
-- exterior region to the curve. The domain of the trimmed
-- surface is defined as the interior of the outer boundaries
-- and exterior of the inner boundaries and includes the
-- boundary curves.
uses
CurveOnSurface from IGESGeom,
HArray1OfCurveOnSurface from IGESGeom
raises OutOfRange
is
Create returns mutable TrimmedSurface;
-- Specific Methods pertaining to the class
Init (me : mutable;
aSurface : IGESEntity;
aFlag : Integer;
anOuter : CurveOnSurface;
allInners : HArray1OfCurveOnSurface);
---Purpose : This method is used to set the fields of the class
-- TrimmedSurface
-- - aSurface : Surface to be trimmed
-- - aFlag : Outer boundary type
-- False = The outer boundary is the boundary of
-- rectangle D which is the domain of the
-- surface to be trimmed
-- True = otherwise
-- - anOuter : Closed curve which constitutes outer boundary
-- - allInners : Array of closed curves which constitute the
-- inner boundary
Surface (me) returns IGESEntity;
---Purpose : returns the surface to be trimmed
HasOuterContour (me) returns Boolean;
---Purpose : returns True if outer contour exists
OuterContour (me) returns CurveOnSurface;
---Purpose : returns the outer contour of the trimmed surface
OuterBoundaryType(me) returns Integer;
---Purpose : returns the outer contour type of the trimmed surface
-- 0 : The outer boundary is the boundary of D
-- 1 : otherwise
NbInnerContours(me) returns Integer;
---Purpose : returns the number of inner boundaries
InnerContour (me; Index : Integer) returns CurveOnSurface
raises OutOfRange;
---Purpose : returns the Index'th inner contour
-- raises exception if Index <= 0 or Index > NbInnerContours()
fields
--
-- Class : IGESGeom_TrimmedSurface
--
-- Purpose : Declaration of variables specific to the definition
-- of the Class TrimmedSurface.
--
-- Reminder : A TrimmedSurface instance is defined by :
-- The surface which is to be trimmed, an array of closed
-- inner boundary curves, an outer boundary and a flag
-- indicating the outer boundary
-- - aSurface : Surface to be trimmed
-- - aFlag : Outer boundary type
-- False = The outer boundary is the boundary of
-- rectangle D which is the domain of the
-- surface to be trimmed. The rectangle D
-- consists of those points (u, v) such
-- that a <= u <= b; c <= v <= d for given
-- constants a, b, c, d with a < b, c < d.
-- True = otherwise
-- - anOuter : Closed curve which constitutes outer boundary
-- - allInners : Array of closed curves which constitute the
-- inner boundary
theSurface : IGESEntity;
theFlag : Integer;
theOuterCurve : CurveOnSurface;
theInnerCurves : HArray1OfCurveOnSurface;
end TrimmedSurface;
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