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-- File: InterferencePolygon3d.cdl
-- Created: Tue Sep 29 11:57:14 1992
-- Author: Didier PIFFAULT
-- <dpf@phylox>
---Copyright: Matra Datavision 1992
generic class InterferencePolygon3d from Intf
(Polygon3d1 as any;
ToolPolygon3d1 as any; -- as ToolPolygon(Pnt,Polygon3d1,Box)
Polygon3d2 as any;
ToolPolygon3d2 as any) -- as ToolPolygon(Pnt,Polygon3d2,Box)
inherits Interference from Intf
---Purpose: Computes the interference between two polygons or the
-- self interference of a polygon in 3 dimensions . In 3
-- dimensions the result can be a common perpendicular ,
-- an orthogonal projection or a real intersections.
-- There are two different instantiation arguments to
-- authorize an interference between two polygons from
-- differents origin. Ex : to intersect a curve polygon
-- with an algorithmic curve from numerical walking
-- between two surfaces.
uses Pnt from gp,
SectionPoint from Intf,
SeqOfSectionPoint from Intf,
SectionLine from Intf,
SeqOfSectionLine from Intf
raises OutOfRange from Standard
is
-- Interface :
Create returns InterferencePolygon3d from Intf;
---Purpose: Constructs an empty interference of 3d Polygon.
Create (Obje1 : in Polygon3d1 ;Obje2 : in Polygon3d2)
returns InterferencePolygon3d from Intf;
---Purpose: Constructs and computes an interference between two Polygons.
Create (Obje : in Polygon3d1)
returns InterferencePolygon3d from Intf;
---Purpose: Constructs and computes the self interference of a Polygon.
Perform (me : in out;
Obje1 : in Polygon3d1 ;Obje2 : in Polygon3d2);
---Purpose: Computes an interference between two Polygons.
Perform (me : in out;
Obje : in Polygon3d1);
---Purpose: Computes the auto interference of a Polygon.
NbResults (me)
returns Integer is static;
---Purpose: Gives the number of common Perpendiculars or orthogonal
-- projections between the two polygons.
ResultLine (me;
Index : in Integer)
returns SectionLine from Intf
raises OutOfRange from Standard
is static;
---Purpose: Gives the segment of address <Index> in the interference
-- representing the perpendicular or the orthogonal
-- projection .
--
---C++: return const &
ResultValue (me;
Index : in Integer)
returns Real from Standard
raises OutOfRange from Standard
is static;
---Purpose: Gives the distance between the two polygons
MinimalDistance(me)
returns Real from Standard
is static;
---Purpose: Gives the distance between the two polygon3d at the
-- perpendicular or projection of minimal length.
MinimalResult (me)
returns Integer from Standard
is static;
---Purpose: Give the perpendicular or projection of minimal length.
-- WARNING : if there are points of intersection the minimal
-- result is one of them and this function is unusuable.
-- Implementation :
Interference (me : in out;
Obje1 : in Polygon3d1;
Obje2 : in Polygon3d2)
is private;
Interference (me : in out;
Obje : in Polygon3d1)
is private;
CommonPerpen (me : in out;
BegO : in Pnt from gp;
EndO : in Pnt from gp;
BegT : in Pnt from gp;
EndT : in Pnt from gp)
is private;
---Purpose: Computes the common perpendicular between the two
-- segments <BegO><EndO> and <BegT><EndT>.
Projections (me : in out;
BegO : in Pnt from gp;
EndO : in Pnt from gp;
BegT : in Pnt from gp;
EndT : in Pnt from gp)
is private;
---Purpose: Computes the different orthogonal projections between
-- segment <BegO><EndO> and points <BegT>,<EndT> and segment
-- <BegT><EndT> and points <BegO>,<EndO>.
fields IndexMin : Integer from Standard;
MinimalDist : Real from Standard;
end InterferencePolygon3d;
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