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-- File: Circ2d2TanRad.cdl
-- Created: Fri Mar 29 10:23:56 1991
-- Author: Remi GILET
-- <reg@topsn2>
---Copyright: Matra Datavision 1991
generic class Circ2d2TanRad from GccGeo (
TheCurve as any;
TheTool as any;
TheQCurve as any; -- as QualifiedCurve from GccEnt
-- (TheCurve)
TheParGenCurve as any; -- as ParGenCurve from GccGeo
-- (TheCurve)
TheHParGenCurve as Transient;
TheCurvePGTool as any; -- as CurvePGTool from GccGeo
-- (Thecurve,
-- TheTool,
-- TheParGenCurve)
TheIntConicCurve as any; -- as IntConicCurveOfGOffsetInter
TheIntCurveCurve as any) -- as GOffsetInter from Geom2dInt
-- (TheParGenCurve,
-- TheCurvePGTool)
---Purpose: This class implements the algorithms used to
-- create 2d circles tangent to one curve and a
-- point/line/circle/curv and with a given radius.
-- For each construction methods arguments are:
-- - Two Qualified elements for tangency constrains.
-- (for example EnclosedCirc if we want the
-- solution inside the argument EnclosedCirc).
-- - Two Reals. One (Radius) for the radius and the
-- other (Tolerance) for the tolerance.
-- Tolerance is only used for the limit cases.
-- For example :
-- We want to create a circle inside a circle C1 and
-- inside a curve Cu2 with a radius Radius and a
-- tolerance Tolerance.
-- If we did not used Tolerance it is impossible to
-- find a solution in the following case : Cu2 is
-- inside C1 and there is no intersection point
-- between the two elements.
-- With Tolerance we will get a solution if the
-- lowest distance between C1 and Cu2 is lower than or
-- equal Tolerance.
-- inherits Entity from Standard
uses Pnt2d from gp,
Circ2d from gp,
Array1OfCirc2d from TColgp,
Array1OfPnt2d from TColgp,
QualifiedCirc from GccEnt,
QualifiedLin from GccEnt,
Array1OfReal from TColStd,
Array1OfInteger from TColStd,
Position from GccEnt,
Array1OfPosition from GccEnt
raises OutOfRange from Standard,
BadQualifier from GccEnt,
NotDone from StdFail,
NegativeValue from Standard
is
Create(Qualified1 : QualifiedCirc from GccEnt ;
Qualified2 : TheQCurve ;
Radius : Real from Standard;
Tolerance : Real from Standard) returns Circ2d2TanRad
---Purpose: This method implements the algorithms used to
-- create 2d circles TANgent to a 2d circle and a curve
-- with a radius of Radius.
raises NegativeValue, BadQualifier;
---Purpose: It raises NegativeValue if Radius is lower than zero.
Create(Qualified1 : QualifiedLin from GccEnt ;
Qualified2 : TheQCurve ;
Radius : Real from Standard;
Tolerance : Real from Standard) returns Circ2d2TanRad
---Purpose: This method implements the algorithms used to
-- create 2d circles TANgent to a 2d line and a curve
-- with a radius of Radius.
raises NegativeValue, BadQualifier;
---Purpose: It raises NegativeValue if Radius is lower than zero.
Create(Qualified1 : TheQCurve ;
Qualified2 : TheQCurve ;
Radius : Real from Standard;
Tolerance : Real from Standard) returns Circ2d2TanRad
---Purpose: This method implements the algorithms used to
-- create 2d circles TANgent to two curves with
-- a radius of Radius.
raises NegativeValue, BadQualifier;
---Purpose: It raises NegativeValue if Radius is lower than zero.
Create(Qualified1 : TheQCurve ;
Point2 : Pnt2d from gp ;
Radius : Real from Standard;
Tolerance : Real from Standard) returns Circ2d2TanRad
---Purpose: This method implements the algorithms used to
-- create 2d circles TANgent to a curve and a point
-- with a radius of Radius.
raises NegativeValue, BadQualifier;
---Purpose: It raises NegativeValue if Radius is lower than zero.
-- -- ....................................................................
IsDone(me) returns Boolean from Standard
is static;
---Purpose: This method returns True if the algorithm succeeded.
NbSolutions(me) returns Integer from Standard
---Purpose: This method returns the number of solutions.
raises NotDone
is static;
---Purpose: It raises NotDone if the algorithm failed.
ThisSolution(me ;
Index : Integer from Standard) returns Circ2d from gp
---Purpose: Returns the solution number Index.
-- Be careful: the Index is only a way to get all the
-- solutions, but is not associated to those outside the context
-- of the algorithm-object.
raises OutOfRange, NotDone
is static;
---Purpose: It raises OutOfRange exception if Index is greater
-- than the number of solutions.
-- It raises NotDone if the construction algorithm did not
-- succeed.
WhichQualifier(me ;
Index : Integer from Standard;
Qualif1 : out Position from GccEnt ;
Qualif2 : out Position from GccEnt )
raises OutOfRange, NotDone
is static;
---Purpose: It returns the information about the qualifiers of
-- the tangency arguments concerning the solution number Index.
-- It returns the real qualifiers (the qualifiers given to the
-- constructor method in case of enclosed, enclosing and outside
-- and the qualifiers computedin case of unqualified).
Tangency1(me ;
Index : Integer from Standard;
ParSol,ParArg : out Real from Standard;
PntSol : out Pnt2d from gp )
---Purpose: Returns information about the tangency point between the
-- result number Index and the first argument.
-- ParSol is the intrinsic parameter of the point PntSol on the solution.
-- ParArg is the intrinsic parameter of the point PntSol on the first
-- argument.
raises OutOfRange, NotDone
is static;
---Purpose: It raises OutOfRange if Index is greater than the number
-- of solutions.
-- It raises NotDone if the construction algorithm did not
-- succeed.
Tangency2(me ;
Index : Integer from Standard;
ParSol,ParArg : out Real from Standard;
PntSol : out Pnt2d from gp )
---Purpose: Returns information about the tangency point between the
-- result number Index and the second argument.
-- ParSol is the intrinsic parameter of the point PntSol on
-- the solution.
-- ParArg is the intrinsic parameter of the point PntArg on
-- the second argument.
raises OutOfRange, NotDone
is static;
---Purpose: It raises OutOfRange if Index is greater than the number
-- of solutions.
-- It raises NotDone if the construction algorithm did not
-- succeed.
IsTheSame1(me ;
Index : Integer from Standard) returns Boolean from Standard
---Purpose: Returns True if the solution number Index is equal to
-- the first argument.
raises OutOfRange, NotDone
is static;
---Purpose: It raises OutOfRange if Index is greater than the number
-- of solutions.
-- It raises NotDone if the construction algorithm did not
-- succeed.
IsTheSame2(me ;
Index : Integer from Standard) returns Boolean from Standard
---Purpose: Returns True if the solution number Index is equal to
-- the second argument.
raises OutOfRange, NotDone
is static;
---Purpose: It raises OutOfRange if Index is greater than the number
-- of solutions.
-- It raises NotDone if the construction algorithm did not
-- succeed.
fields
WellDone : Boolean from Standard;
---Purpose: True if the algorithm succeeded.
NbrSol : Integer from Standard;
---Purpose: The number of possible solutions. We have to decide about
-- the status of the multiple solutions...
cirsol : Array1OfCirc2d from TColgp;
-- The solutions.
qualifier1 : Array1OfPosition from GccEnt;
-- The qualifiers of the first argument.
qualifier2 : Array1OfPosition from GccEnt;
-- The qualifiers of the second argument.
TheSame1 : Array1OfInteger from TColStd;
---Purpose: 1 if the solution and the first argument are the same
-- (2 circles).
-- If R1 is the radius of the first argument and Rsol the radius
-- of the solution and dist the distance between the two centers,
-- we consider the two circles are identical if R1+dist-Rsol is
-- less than Tolerance.
-- 0 in the other cases.
TheSame2 : Array1OfInteger from TColStd;
---Purpose: 1 if the solution and the second argument are the same
-- (2 circles).
-- If R2 is the radius of the second argument and Rsol the radius
-- of the solution and dist the distance between the two centers,
-- we consider the two circles are identical if R2+dist-Rsol is
-- less than Tolerance.
-- 0 in the other cases.
pnttg1sol : Array1OfPnt2d from TColgp;
---Purpose: The tangency point between the solution and the first
-- argument on the solution.
pnttg2sol : Array1OfPnt2d from TColgp;
---Purpose: The tangency point between the solution and the second
-- argument on the solution.
par1sol : Array1OfReal from TColStd;
---Purpose: The parameter of the tangency point between the solution
-- and the first argument on the solution.
par2sol : Array1OfReal from TColStd;
---Purpose: The parameter of the tangency point between the solution
-- and the second argument on the solution.
pararg1 : Array1OfReal from TColStd;
---Purpose: The parameter of the tangency point between the solution
-- and the first argument on the first argument.
pararg2 : Array1OfReal from TColStd;
---Purpose: The parameter of the tangency point between the solution
-- and the second argument on the second argument.
end Circ2d2TanRad;
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