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-- File: GeomPlate_BuildAveragePlane.cdl
-- Created: Mon Mar 18 15:15:54 1996
-- Author: Stagiaire Frederic CALOONE
-- <cfc@stylox>
-- Modified: Wed Mar 5 09:45:42 1997
-- by: Joelle CHAUVET
-- G1134 : convertion of a GeomPlate_Surface to a Geom_BSplineSurface
-- by approximation with G0 or G1 criterion
-- modification of Create, BasePlan and DefPlan for options
---Copyright: Matra Datavision 1996
class BuildAveragePlane from GeomPlate
---Purpose: This class computes an average inertial plane with an
-- array of points.
uses
Jacobi from math,
Matrix from math,
Vector from math,
Pnt from gp,
HArray1OfPnt from TColgp,
Plane from Geom,
Vec from gp,
Line from Geom,
SequenceOfVec from TColgp,
SequenceOfAij from GeomPlate
raises
NoSuchObject from Standard
is
Create ( Pts : HArray1OfPnt from TColgp;
NbBoundPoints : Integer from Standard;
Tol : Real from Standard;
POption : Integer from Standard ;
NOption : Integer from Standard )
returns BuildAveragePlane from GeomPlate;
---Purpose: Tol is a Tolerance to make the difference between
-- the result plane and the result line.
--- if POption = 1 : automatical parametrisation
--- if POption = 2 : parametrisation by eigen vectors
--- if NOption = 1 : the average plane is the inertial plane.
--- if NOption = 2 : the average plane is the plane of max. flux.
Create ( Normals : SequenceOfVec from TColgp;
Pts : HArray1OfPnt from TColgp )
returns BuildAveragePlane from GeomPlate;
---Purpose: Creates the plane from the "best vector"
BasePlan ( me : in out ; N :Vec from gp)
---Purpose: Computes a base of the average plane defined by (myG,N)
--- using eigen vectors
is private;
DefPlan ( me : in out ; NOption : Integer from Standard )
---Purpose: Defines the average plane.
--- if NOption = 1 : the average plane is the inertial plane.
--- if NOption = 2 : the average plane is the plane of max. flux.
returns Vec from gp
is private;
Plane ( me ) returns Plane from Geom
---Purpose:
-- Return the average Plane.
raises NoSuchObject from Standard;
-- Raises if the computed object is not a Plane.
Line ( me ) returns Line from Geom
---Purpose :
-- Return a Line when 2 eigenvalues are null.
raises NoSuchObject from Standard;
-- Raises if the computed object is not a Line.
IsPlane ( me )
---Purpose: return OK if is a plane.
returns Boolean from Standard;
IsLine ( me )
---Purpose: return OK if is a line.
returns Boolean from Standard;
MinMaxBox ( me ; Umin,Umax,Vmin,Vmax : out Real from Standard);
---Purpose: computes the minimal box to include all normal
-- projection points of the initial array on the plane.
HalfSpace( myclass ; NewNormals : SequenceOfVec from TColgp;
Normals : in out SequenceOfVec from TColgp;
Bset : in out SequenceOfAij from GeomPlate;
LinTol : Real from Standard;
AngTol : Real from Standard )
returns Boolean from Standard;
fields
myPts : HArray1OfPnt from TColgp;
myUmax : Real from Standard;
myVmax : Real from Standard;
myVmin : Real from Standard;
myUmin : Real from Standard;
myPlane: Plane from Geom;
myTol : Real from Standard;
myLine : Line from Geom;
myOX : Vec from gp;
myOY : Vec from gp;
myG : Pnt from gp;
myNbBoundPoints : Integer from Standard;
end;
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