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1 | -- Created on: 1993-05-14 |
2 | -- Created by: Laurent PAINNOT |
3 | -- Copyright (c) 1993-1999 Matra Datavision |
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4 | -- Copyright (c) 1999-2014 OPEN CASCADE SAS |
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5 | -- |
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6 | -- This file is part of Open CASCADE Technology software library. |
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7 | -- |
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8 | -- This library is free software; you can redistribute it and/or modify it under |
9 | -- the terms of the GNU Lesser General Public License version 2.1 as published |
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10 | -- by the Free Software Foundation, with special exception defined in the file |
11 | -- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
12 | -- distribution for complete text of the license and disclaimer of any warranty. |
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13 | -- |
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14 | -- Alternatively, this file may be used under the terms of Open CASCADE |
15 | -- commercial license or contractual agreement. |
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16 | |
17 | generic class ComputeCLine from Approx |
18 | (MultiLine as any; |
19 | LineTool as any) --as TheLineTool from AppCont(MultiLine) |
20 | |
21 | |
22 | uses ParametrizationType from Approx, |
23 | SequenceOfReal from TColStd, |
24 | HArray1OfReal from TColStd, |
25 | SequenceOfMultiCurve from AppParCurves, |
26 | MultiCurve from AppParCurves, |
27 | Constraint from AppParCurves, |
28 | Vector from math |
29 | |
30 | |
31 | |
32 | private class MyLeastSquare instantiates LeastSquare from AppCont |
33 | (MultiLine, |
34 | LineTool); |
35 | |
36 | is |
37 | |
38 | |
39 | Create(Line: MultiLine; |
40 | degreemin: Integer = 3; |
41 | degreemax: Integer = 8; |
42 | Tolerance3d: Real = 1.0e-5; |
43 | Tolerance2d: Real = 1.0e-5; |
44 | cutting: Boolean = Standard_False; |
45 | FirstC: Constraint = AppParCurves_TangencyPoint; |
46 | LastC: Constraint = AppParCurves_TangencyPoint) |
47 | |
48 | ---Purpose: The MultiLine <Line> will be approximated until tolerances |
49 | -- will be reached. |
50 | -- The approximation will be done from degreemin to degreemax |
51 | -- with a cutting if the corresponding boolean is True. |
52 | |
53 | returns ComputeCLine; |
54 | |
55 | |
56 | |
57 | |
58 | Create(degreemin: Integer = 3; |
59 | degreemax: Integer = 8; |
60 | Tolerance3d: Real = 1.0e-05; |
61 | Tolerance2d: Real = 1.0e-05; |
62 | cutting: Boolean = Standard_False; |
63 | FirstC: Constraint = AppParCurves_TangencyPoint; |
64 | LastC: Constraint = AppParCurves_TangencyPoint) |
65 | |
66 | ---Purpose: Initializes the fields of the algorithm. |
67 | |
68 | returns ComputeCLine; |
69 | |
70 | |
71 | Perform(me: in out; Line: MultiLine) |
72 | ---Purpose: runs the algorithm after having initialized the fields. |
73 | |
74 | is static; |
75 | |
76 | |
77 | Compute(me: in out; Line: MultiLine; Ufirst, Ulast: Real; |
78 | TheTol3d, TheTol2d: in out Real) |
79 | ---Purpose: is internally used by the algorithms. |
80 | |
81 | returns Boolean |
82 | is static private; |
83 | |
84 | |
85 | SetDegrees(me: in out; degreemin, degreemax: Integer) |
86 | ---Purpose: changes the degrees of the approximation. |
87 | |
88 | is static; |
89 | |
90 | |
91 | SetTolerances(me: in out; Tolerance3d, Tolerance2d: Real) |
92 | ---Purpose: Changes the tolerances of the approximation. |
93 | |
94 | is static; |
95 | |
96 | |
97 | SetConstraints(me: in out; FirstC, LastC: Constraint) |
98 | ---Purpose: Changes the constraints of the approximation. |
99 | |
100 | is static; |
101 | |
102 | |
103 | IsAllApproximated(me) |
104 | ---Purpose: returns False if at a moment of the approximation, |
105 | -- the status NoApproximation has been sent by the user |
106 | -- when more points were needed. |
107 | |
108 | returns Boolean |
109 | is static; |
110 | |
111 | IsToleranceReached(me) |
112 | ---Purpose: returns False if the status NoPointsAdded has been sent. |
113 | |
114 | returns Boolean |
115 | is static; |
116 | |
117 | |
118 | Error(me; Index: Integer; tol3d: in out Real; tol2d: in out Real) |
119 | ---Purpose: returns the tolerances 2d and 3d of the <Index> MultiCurve. |
120 | |
121 | is static; |
122 | |
123 | |
124 | NbMultiCurves(me) |
125 | ---Purpose: Returns the number of MultiCurve doing the approximation |
126 | -- of the MultiLine. |
127 | returns Integer |
128 | is static; |
129 | |
130 | |
131 | Value(me; Index: Integer = 1) |
132 | ---Purpose: returns the approximation MultiCurve of range <Index>. |
133 | |
134 | returns MultiCurve from AppParCurves; |
135 | |
136 | |
137 | Parameters(me; Index: Integer; firstp, lastp: in out Real) |
138 | ---purpose: returns the first and last parameters of the |
139 | -- <Index> MultiCurve. |
140 | is static; |
141 | |
142 | |
143 | fields |
144 | |
145 | |
146 | myMultiCurves: SequenceOfMultiCurve from AppParCurves; |
147 | myfirstparam: SequenceOfReal from TColStd; |
148 | mylastparam: SequenceOfReal from TColStd; |
149 | TheMultiCurve: MultiCurve from AppParCurves; |
150 | alldone: Boolean; |
151 | tolreached: Boolean; |
152 | Tolers3d: SequenceOfReal from TColStd; |
153 | Tolers2d: SequenceOfReal from TColStd; |
154 | mydegremin: Integer; |
155 | mydegremax: Integer; |
156 | mytol3d: Real; |
157 | mytol2d: Real; |
158 | currenttol3d: Real; |
159 | currenttol2d: Real; |
160 | mycut: Boolean; |
161 | myfirstC: Constraint; |
162 | mylastC: Constraint; |
163 | |
164 | |
165 | end ComputeCLine; |