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-- File: ChFi3d.cdl
-- Created: Tue Nov 9 15:39:27 1993
-- Author: Laurent BOURESCHE
-- <lbo@zerox>
---Copyright: Matra Datavision 1993
package ChFi3d
---Purpose: creation of spatial fillets on a solid.
uses ChFiDS,
TopOpeBRepBuild,
TopOpeBRepDS,
BRepAdaptor,
BRepTopAdaptor,
BRepBlend,
BlendFunc,
Blend,
AppBlend,
Law,
gp,
Geom2d,
Geom,
GeomAbs,
TopoDS,
TopAbs,
TCollection,
TColStd,
TColgp,
TopTools,
MMgt,
StdFail,
math,
AdvApprox,
Adaptor3d,
Adaptor2d,
Standard
is
deferred class Builder;
---Purpose: Structure and methods common for the construction
-- of fillets and chamfers 3d.
class ChBuilder;
---Purpose: Tool constructing chamfers on a solid.
class FilBuilder;
---Purpose: Outil de construction de conges sur un solide.
private class SearchSing;
---Purpose: Searches singularities on fillet
enumeration FilletShape is
Rational,
QuasiAngular,
Polynomial
--- Purpose:
-- Lists the types of fillet shapes. These include the following:
-- - ChFi3d_Rational (default value), which is the
-- standard NURBS representation of circles,
-- - ChFi3d_QuasiAngular, which is a NURBS
-- representation of circles where the parameters
-- match those of the circle,
-- - ChFi3d_Polynomial, which corresponds to a
-- polynomial approximation of circles. This type
-- facilitates the implementation of the construction algorithm.
end FilletShape;
ConcaveSide (S1,S2 : Surface from BRepAdaptor; E : Edge from TopoDS;
Or1,Or2 : out Orientation from TopAbs)
---Purpose: Returns Reversed in Or1 and(or) Or2 if
-- the concave edge defined by the interior of faces F1 and F2,
-- in the neighbourhood of their boundary E is of the edge opposite to the
-- normal of their surface support. The orientation of
-- faces is not taken into consideration in the calculation. The
-- function returns 0 if the calculation fails (tangence),
-- if not, it returns the number of choice of the fillet
-- or chamfer corresponding to the orientations calculated
-- and to the tangent to the guide line read in E.
--
returns Integer from Standard;
NextSide (Or1,Or2 : in out Orientation from TopAbs;
OrSave1,OrSave2 : Orientation from TopAbs;
ChoixSauv : Integer from Standard)
---Purpose: Same as ConcaveSide, but the orientations are
-- logically deduced from the result of the call of
-- ConcaveSide on the first pair of faces of the fillet or
-- chamnfer.
returns Integer from Standard;
NextSide (Or : in out Orientation from TopAbs;
OrSave,OrFace : Orientation from TopAbs);
---Purpose: Same as the other NextSide, but the calculation is done
-- on an edge only.
SameSide(Or,OrSave1,OrSave2,OrFace1,OrFace2 : Orientation from TopAbs)
---Purpose: Enables to determine while processing an angle, if
-- two fillets or chamfers constituting a face have
-- identic or opposed concave edges.
returns Boolean from Standard;
end ChFi3d;
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