| 7fd59977 |
1 | -- File: Extrema_ExtPExtS.cdl |
| 2 | -- Created: Thu Sep 16 16:53:38 1999 |
| 3 | -- Author: Edward AGAPOV |
| 4 | -- <eap@strelox.nnov.matra-dtv.fr> |
| 5 | ---Copyright: Matra Datavision 1999 |
| 6 | |
| 7 | |
| 8 | class ExtPExtS from Extrema |
| 9 | |
| 10 | ---Purpose: It calculates all the extremum (minimum and |
| 11 | -- maximum) distances between a point and a linear |
| 12 | -- extrusion surface. |
| 13 | |
| 14 | uses |
| 15 | POnSurf from Extrema, |
| 16 | GenExtPS from Extrema, |
| 17 | FuncExtPS from Extrema, |
| 18 | |
| 19 | HCurve from Adaptor3d, |
| 20 | SurfacePtr from Adaptor3d, |
| 21 | SurfaceOfLinearExtrusion from Adaptor3d, |
| 22 | |
| 23 | Ax2 from gp, |
| 24 | Vec from gp, |
| 25 | Pnt from gp |
| 26 | |
| 27 | raises |
| 28 | NotDone from StdFail, |
| 29 | OutOfRange |
| 30 | |
| 31 | |
| 32 | is |
| 33 | Create returns ExtPExtS; |
| 34 | |
| 35 | Create (P: Pnt; S: SurfaceOfLinearExtrusion from Adaptor3d; |
| 36 | Umin, Usup, Vmin, Vsup: Real; |
| 37 | TolU,TolV: Real) |
| 38 | returns ExtPExtS; |
| 39 | ---Purpose: It calculates all the distances between a point |
| 40 | -- from gp and a Surface. |
| 41 | |
| 42 | Create (P: Pnt; S: SurfaceOfLinearExtrusion from Adaptor3d; |
| 43 | TolU,TolV: Real) |
| 44 | returns ExtPExtS; |
| 45 | ---Purpose: It calculates all the distances between a point |
| 46 | -- from gp and a Surface. |
| 47 | |
| 48 | Initialize(me: in out; S: SurfaceOfLinearExtrusion from Adaptor3d; |
| 49 | Uinf, Usup, Vinf, Vsup: Real; |
| 50 | TolU, TolV: Real) |
| 51 | ---Purpose: Initializes the fields of the algorithm. |
| 52 | is static; |
| 53 | |
| 54 | Perform(me: in out; P: Pnt) |
| 55 | is static; |
| 56 | |
| 57 | IsDone (me) returns Boolean |
| 58 | ---Purpose: Returns True if the distances are found. |
| 59 | is static; |
| 60 | |
| 61 | NbExt (me) returns Integer |
| 62 | ---Purpose: Returns the number of extremum distances. |
| 63 | raises NotDone from StdFail |
| 64 | -- if IsDone(me)=False. |
| 65 | is static; |
| 66 | |
| 67 | SquareDistance (me; N: Integer) returns Real |
| 68 | ---Purpose: Returns the value of the Nth resulting square distance. |
| 69 | raises NotDone from StdFail, |
| 70 | -- if IsDone(me)=False. |
| 71 | OutOfRange |
| 72 | -- if N < 1 or N > NbPoints(me). |
| 73 | is static; |
| 74 | |
| 75 | Point (me; N: Integer) returns POnSurf |
| 76 | ---Purpose: Returns the point of the Nth resulting distance. |
| 77 | raises NotDone from StdFail, |
| 78 | -- if IsDone(me)=False. |
| 79 | OutOfRange |
| 80 | -- if N < 1 or N > NbPoints(me). |
| 81 | is static; |
| 82 | |
| 83 | --- Private methods |
| 84 | |
| 85 | MakePreciser (me; U : in out Real from Standard; |
| 86 | P : Pnt from gp; |
| 87 | isMin : Boolean from Standard; |
| 88 | OrtogSection: Ax2 from gp) is static private; |
| 89 | |
| 90 | fields |
| 91 | myuinf : Real from Standard; |
| 92 | myusup : Real from Standard; |
| 93 | mytolu : Real from Standard; |
| 94 | myvinf : Real from Standard; |
| 95 | myvsup : Real from Standard; |
| 96 | mytolv : Real from Standard; |
| 97 | |
| 98 | myVRange : Real from Standard; |
| 99 | |
| 100 | myF : FuncExtPS from Extrema; |
| 101 | myC : HCurve from Adaptor3d; |
| 102 | myS : SurfacePtr from Adaptor3d; |
| 103 | myDirection : Vec from gp; |
| 104 | myPosition : Ax2 from gp; |
| 105 | myExtPS : GenExtPS from Extrema; |
| 106 | |
| 107 | myIsAnalyticallyComputable : Boolean from Standard; |
| 108 | |
| 109 | myDone : Boolean from Standard; |
| 110 | myNbExt: Integer from Standard; |
| 111 | mySqDist: Real from Standard [4]; |
| 112 | myPoint: POnSurf from Extrema [4]; |
| 113 | |
| 114 | end ExtPExtS; |
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