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-- File: HatchGen_Intersector.cdl
-- Created: Mon Mar 21 16:53:32 1994
-- Author: Jean Marc LACHAUME
-- <jml@phobox>
-- Copyright: Matra Datavision 1994
deferred generic class Intersector from HatchGen
(TheCurveH as any ; -- as Curve from Geom2dAdaptor
TheCurveE as any ) -- as Curve from Geom2dAdaptor
inherits Intersection from IntRes2d
uses
Lin2d from gp,
Dir2d from gp
is
Initialize
---Purpose: Creates an empty intersector
is protected ;
Initialize(Confusion : Real from Standard ;
Tangency : Real from Standard)
---Purpose: Creates an intersector.
is protected ;
ConfusionTolerance (me)
---Purpose: Returns the confusion tolerance of the
-- intersector.
returns Real from Standard
is static ;
SetConfusionTolerance (me : in out ;
Confusion : Real from Standard)
---Purpose: Sets the confusion tolerance of the intersector.
is static ;
TangencyTolerance (me)
---Purpose: Returns the tangency tolerance of the
-- intersector.
returns Real from Standard
is static ;
SetTangencyTolerance (me : in out ;
Tangency : Real from Standard)
---Purpose: Sets the tangency tolerance of the intersector.
is static ;
Intersect (me : in out ; C1 : in out TheCurveE ;
C2 : in out TheCurveH )
---Purpose: Intersects the curves C1 and C2.
-- The results are retreived by the usual methods
-- described in IntRes2d_Intersection.
is static ;
-------------------------------------------------------------------------
---- M e t h o d s u s e d b y t h e C l a s s i f i e r 2 d ---
-------------------------------------------------------------------------
Perform(me : in out;
L : Lin2d from gp;
P : Real from Standard;
Tol : Real from Standard;
E : TheCurveE)
---Purpose: Performs the intersection between the 2d line
-- segment (<L>, <P>) and the Curve <E>. The line
-- segment is the part of the 2d line <L> of
-- parameter range [0, <P>] (P is positive and can be
-- RealLast()). Tol is the Tolerance on the segment.
-- The order is relevant, the first argument is the
-- segment, the second the Edge.
is static;
LocalGeometry(me;
E : TheCurveE ;
U : Real from Standard;
T : out Dir2d from gp;
N : out Dir2d from gp;
C : out Real)
---Purpose: Returns in <T>, <N> and <C> the tangent, normal
-- and curvature of the edge <E> at parameter value
-- <U>.
is static;
end Intersector from HatchGen ;
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