| 7fd59977 |
1 | -- File: FEmTool_Curve.cdl |
| 2 | -- Created: Fri Sep 12 18:23:02 1997 |
| 3 | -- Author: Philippe MANGIN |
| 4 | -- <pmn@sgi29> |
| 5 | ---Copyright: Matra Datavision 1997 |
| 6 | |
| 7 | |
| 8 | class Curve from FEmTool inherits TShared from MMgt |
| 9 | |
| 10 | ---Purpose: Curve defined by Polynomial Elements. |
| 11 | |
| 12 | uses |
| 13 | Base from PLib, |
| 14 | Array1OfReal from TColStd, |
| 15 | HArray1OfInteger from TColStd, |
| 16 | Array2OfReal from TColStd, |
| 17 | Array1OfInteger from TColStd, |
| 18 | HArray1OfReal from TColStd |
| 19 | |
| 20 | raises |
| 21 | DimensionError |
| 22 | |
| 23 | is |
| 24 | Create(Dimension : Integer; |
| 25 | NbElements : Integer; |
| 26 | TheBase : Base from PLib; |
| 27 | Tolerance : Real); |
| 28 | |
| 29 | Knots(me) |
| 30 | ---C++: return & |
| 31 | returns Array1OfReal; |
| 32 | |
| 33 | SetElement(me : mutable; IndexOfElement : Integer; |
| 34 | Coeffs : Array2OfReal); |
| 35 | |
| 36 | D0(me : mutable; U : Real; Pnt : out Array1OfReal); |
| 37 | |
| 38 | D1(me : mutable; U : Real; Vec : out Array1OfReal); |
| 39 | |
| 40 | D2(me : mutable; U : Real; Vec : out Array1OfReal); |
| 41 | |
| 42 | Length(me : mutable; |
| 43 | FirstU, LastU : Real; |
| 44 | Length : out Real); |
| 45 | |
| 46 | GetElement(me : mutable; IndexOfElement : Integer; |
| 47 | Coeffs : out Array2OfReal); |
| 48 | |
| 49 | GetPolynom(me : mutable; Coeffs : out Array1OfReal); |
| 50 | ---Purpose: returns coefficients of all elements in canonical base. |
| 51 | |
| 52 | NbElements(me) returns Integer; |
| 53 | |
| 54 | Dimension(me) returns Integer; |
| 55 | |
| 56 | Base(me) returns Base from PLib; |
| 57 | |
| 58 | Degree(me; IndexOfElement : Integer) returns Integer; |
| 59 | |
| 60 | SetDegree(me : mutable; |
| 61 | IndexOfElement : Integer; |
| 62 | Degree : Integer); |
| 63 | |
| 64 | ReduceDegree(me : mutable; |
| 65 | IndexOfElement : Integer; Tol : Real; |
| 66 | NewDegree : out Integer; MaxError : out Real); |
| 67 | |
| 68 | |
| 69 | Update(me:mutable; Element : Integer; Order : Integer) |
| 70 | is private; |
| 71 | |
| 72 | fields |
| 73 | myNbElements : Integer; |
| 74 | myDimension : Integer; |
| 75 | myTolerance : Real; |
| 76 | myBase : Base from PLib; |
| 77 | myKnots : HArray1OfReal; |
| 78 | myDegree : Array1OfInteger; |
| 79 | myCoeff : Array1OfReal; -- Coeff in <myBase> |
| 80 | myPoly : Array1OfReal; -- Coeff in the canonnical Bases |
| 81 | myDeri : Array1OfReal; -- Coeff of the first Derivative |
| 82 | -- in the canonical Base |
| 83 | myDsecn : Array1OfReal; -- Coeff of the second Derivative |
| 84 | -- in the canonnical Base |
| 85 | HasPoly : Array1OfInteger; -- Say If the Ith Element |
| 86 | -- has an canonical Representation. |
| 87 | HasDeri : Array1OfInteger; -- Say If the Ith Element |
| 88 | -- has an first Derivative Representation. |
| 89 | HasSecn : Array1OfInteger; -- Say If the Ith Element |
| 90 | -- has an second Derivative Representation. |
| 91 | myLength : Array1OfReal; -- Table of Length Element by Element |
| 92 | Uf, Ul : Real; |
| 93 | Denom, USum : Real; |
| 94 | myIndex, myPtr : Integer; |
| 95 | end Curve; |
| 96 | |
| 97 | |
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