projects / occt.git / blame
| Commit | Line | Data |
|---|---|---|
| b311480e | 1 | -- Created on: 1994-02-01 |
| 2 | -- Created by: Laurent PAINNOT | |
| 3 | -- Copyright (c) 1994-1999 Matra Datavision | |
| 4 | -- Copyright (c) 1999-2012 OPEN CASCADE SAS | |
| 5 | -- | |
| 6 | -- The content of this file is subject to the Open CASCADE Technology Public | |
| 7 | -- License Version 6.5 (the "License"). You may not use the content of this file | |
| 8 | -- except in compliance with the License. Please obtain a copy of the License | |
| 9 | -- at http://www.opencascade.org and read it completely before using this file. | |
| 10 | -- | |
| 11 | -- The Initial Developer of the Original Code is Open CASCADE S.A.S., having its | |
| 12 | -- main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. | |
| 13 | -- | |
| 14 | -- The Original Code and all software distributed under the License is | |
| 15 | -- distributed on an "AS IS" basis, without warranty of any kind, and the | |
| 16 | -- Initial Developer hereby disclaims all such warranties, including without | |
| 17 | -- limitation, any warranties of merchantability, fitness for a particular | |
| 18 | -- purpose or non-infringement. Please see the License for the specific terms | |
| 19 | -- and conditions governing the rights and limitations under the License. | |
| 20 | ||
| 7fd59977 | 21 | |
| 22 | ||
| 23 | class ExtPS from Extrema | |
| 24 | ||
| 25 | ---Purpose: It calculates all the extremum distances | |
| 26 | -- between a point and a surface. | |
| 27 | -- These distances can be minimum or maximum. | |
| 28 | ||
| 29 | uses | |
| 30 | POnSurf from Extrema, | |
| 31 | ExtPElS from Extrema, | |
| 32 | Pnt from gp, | |
| 33 | SurfaceType from GeomAbs, | |
| 34 | SequenceOfPOnSurf from Extrema, | |
| 35 | SequenceOfReal from TColStd, | |
| 36 | Surface from Adaptor3d, | |
| 37 | SurfacePtr from Adaptor3d, | |
| 92d1589b A |
38 | GenExtPS from Extrema, |
| 39 | ExtFlag from Extrema, | |
| 40 | ExtAlgo from Extrema | |
| 7fd59977 | 41 | -- ExtPExtS from Extrema, |
| 42 | -- ExtPRevS from Extrema | |
| 43 | ||
| 44 | ||
| 45 | raises NotDone from StdFail, | |
| 46 | OutOfRange from Standard, | |
| 47 | TypeMismatch from Standard | |
| 48 | ||
| 49 | ||
| 50 | ||
| 51 | is | |
| 52 | Create returns ExtPS; | |
| 53 | ||
| 54 | ||
| 92d1589b A |
55 | Create (P: Pnt from gp; S: Surface from Adaptor3d; TolU,TolV: Real; |
| 56 | F : ExtFlag from Extrema = Extrema_ExtFlag_MINMAX; | |
| 57 | A : ExtAlgo from Extrema = Extrema_ExtAlgo_Grad) | |
| 7fd59977 | 58 | returns ExtPS; |
| 59 | ---Purpose: It calculates all the distances. | |
| 60 | -- NbU and NbV are used to locate the close points | |
| 61 | -- to find the zeros. They must be great enough | |
| 62 | -- such that if there is N extrema, there will | |
| 63 | -- be N extrema between P and the grid. | |
| 64 | -- TolU et TolV are used to determine the conditions | |
| 65 | -- to stop the iterations; at the iteration number n: | |
| 66 | -- (Un - Un-1) < TolU and (Vn - Vn-1) < TolV . | |
| 67 | ||
| 68 | Create (P: Pnt from gp; S: Surface from Adaptor3d; | |
| 69 | Uinf, Usup, Vinf, Vsup: Real; | |
| 92d1589b A |
70 | TolU,TolV: Real; |
| 71 | F : ExtFlag from Extrema = Extrema_ExtFlag_MINMAX; | |
| 72 | A : ExtAlgo from Extrema = Extrema_ExtAlgo_Grad) | |
| 7fd59977 | 73 | returns ExtPS; |
| 74 | ---Purpose: It calculates all the distances. | |
| 75 | -- NbU and NbV are used to locate the close points | |
| 76 | -- to find the zeros. They must be great enough | |
| 77 | -- such that if there is N extrema, there will | |
| 78 | -- be N extrema between P and the grid. | |
| 79 | -- TolU et TolV are used to determine the conditions | |
| 80 | -- to stop the iterations; at the iteration number n: | |
| 81 | -- (Un - Un-1) < TolU and (Vn - Vn-1) < TolV . | |
| 82 | ||
| 83 | ||
| 84 | Initialize(me: in out; S: Surface from Adaptor3d; | |
| 85 | Uinf, Usup, Vinf, Vsup: Real; | |
| 86 | TolU, TolV: Real) | |
| 87 | ---Purpose: Initializes the fields of the algorithm. | |
| 88 | ||
| 89 | is static; | |
| 90 | ||
| 91 | Perform(me: in out; P: Pnt from gp) | |
| 92 | ---Purpose: Computes the distances. | |
| 93 | -- An exception is raised if the fieds have not been | |
| 94 | -- initialized. | |
| 95 | ||
| 96 | raises TypeMismatch from Standard | |
| 97 | is static; | |
| 98 | ||
| 99 | ||
| 100 | IsDone (me) returns Boolean | |
| 101 | ---Purpose: Returns True if the distances are found. | |
| 102 | is static; | |
| 103 | ||
| 104 | NbExt (me) returns Integer | |
| 105 | ---Purpose: Returns the number of extremum distances. | |
| 106 | raises NotDone from StdFail | |
| 107 | -- if IsDone(me)=False. | |
| 108 | is static; | |
| 109 | ||
| 110 | SquareDistance (me; N: Integer) returns Real | |
| 111 | ---Purpose: Returns the value of the Nth resulting square distance. | |
| 112 | raises NotDone from StdFail, | |
| 113 | -- if IsDone(me)=False. | |
| 114 | OutOfRange | |
| 115 | -- if N < 1 or N > NbPoints(me). | |
| 116 | is static; | |
| 117 | ||
| 118 | Point (me; N: Integer) returns POnSurf | |
| 119 | ---Purpose: Returns the point of the Nth resulting distance. | |
| 120 | raises NotDone from StdFail, | |
| 121 | -- if IsDone(me)=False. | |
| 122 | OutOfRange | |
| 123 | -- if N < 1 or N > NbPoints(me). | |
| 124 | is static; | |
| 125 | ||
| 126 | TrimmedSquareDistances(me; dUfVf, dUfVl, dUlVf, dUlVl: out Real; | |
| 127 | PUfVf, PUfVl, PUlVf, PUlVl: out Pnt) | |
| 128 | ---Purpose: if the surface is a trimmed surface, | |
| 129 | -- dUfVf is a square distance between <P> and the point | |
| 130 | -- of parameter FirstUParameter and FirstVParameter <PUfVf>. | |
| 131 | -- dUfVl is a square distance between <P> and the point | |
| 132 | -- of parameter FirstUParameter and LastVParameter <PUfVl>. | |
| 133 | -- dUlVf is a square distance between <P> and the point | |
| 134 | -- of parameter LastUParameter and FirstVParameter <PUlVf>. | |
| 135 | -- dUlVl is a square distance between <P> and the point | |
| 136 | -- of parameter LastUParameter and LastVParameter <PUlVl>. | |
| 137 | is static; | |
| 92d1589b A |
138 | |
| 139 | SetFlag(me : in out; F : ExtFlag from Extrema) | |
| 140 | is static; | |
| 141 | ||
| 142 | SetAlgo(me : in out; A : ExtAlgo from Extrema) | |
| 143 | is static; | |
| 7fd59977 | 144 | |
| 145 | ||
| 146 | Bidon(me) returns SurfacePtr from Adaptor3d | |
| 147 | is static private; | |
| 148 | ||
| 149 | -- modified by NIZHNY-EAP Fri Oct 29 09:44:34 1999 ___BEGIN___ | |
| 150 | TreatSolution (me:in out; PS: POnSurf from Extrema; | |
| 151 | Val: Real from Standard) | |
| 152 | is static private; | |
| 153 | -- modified by NIZHNY-EAP Fri Oct 29 09:44:37 1999 ___END___ | |
| 154 | fields | |
| 155 | myS : SurfacePtr from Adaptor3d; | |
| 156 | myDone : Boolean from Standard; | |
| 157 | myExtPElS: ExtPElS from Extrema; | |
| 158 | myExtPS : GenExtPS from Extrema; | |
| 159 | myPoints : SequenceOfPOnSurf from Extrema; | |
| 160 | myuinf : Real from Standard; | |
| 161 | myusup : Real from Standard; | |
| 162 | myvinf : Real from Standard; | |
| 163 | myvsup : Real from Standard; | |
| 164 | mytolu : Real from Standard; | |
| 165 | mytolv : Real from Standard; | |
| 166 | d11 : Real from Standard; | |
| 167 | d12 : Real from Standard; | |
| 168 | d21 : Real from Standard; | |
| 169 | d22 : Real from Standard; | |
| 170 | P11 : Pnt from gp; | |
| 171 | P12 : Pnt from gp; | |
| 172 | P21 : Pnt from gp; | |
| 173 | P22 : Pnt from gp; | |
| 174 | mySqDist : SequenceOfReal from TColStd; | |
| 175 | mytype : SurfaceType from GeomAbs; | |
| 176 | ||
| 177 | end ExtPS; |