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b311480e | 1 | // Created on: 1995-07-17 |
2 | // Created by: Modelistation | |
3 | // Copyright (c) 1995-1999 Matra Datavision | |
973c2be1 | 4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
b311480e | 5 | // |
973c2be1 | 6 | // This file is part of Open CASCADE Technology software library. |
b311480e | 7 | // |
d5f74e42 | 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 | |
973c2be1 | 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. | |
b311480e | 13 | // |
973c2be1 | 14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. | |
7fd59977 | 16 | |
42cf5bc1 | 17 | |
18 | #include <Adaptor2d_HCurve2d.hxx> | |
19 | #include <Contap_HCurve2dTool.hxx> | |
20 | #include <Geom2d_BezierCurve.hxx> | |
21 | #include <Geom2d_BSplineCurve.hxx> | |
22 | #include <gp_Pnt2d.hxx> | |
23 | #include <gp_Vec2d.hxx> | |
24 | #include <Standard_DomainError.hxx> | |
25 | #include <Standard_NoSuchObject.hxx> | |
26 | #include <Standard_OutOfRange.hxx> | |
7fd59977 | 27 | |
7fd59977 | 28 | //============================================================ |
e2065c2f | 29 | Standard_Integer Contap_HCurve2dTool::NbSamples (const Handle(Adaptor2d_HCurve2d)& C, |
30 | const Standard_Real U0, | |
31 | const Standard_Real U1) | |
733a0e55 S |
32 | { |
33 | Standard_Real nbs = 10.0; | |
34 | switch (C->GetType()) | |
35 | { | |
e2065c2f | 36 | case GeomAbs_Line: |
37 | nbs = 2.; | |
38 | break; | |
39 | case GeomAbs_BezierCurve: | |
40 | nbs = 3. + C->NbPoles(); | |
41 | break; | |
42 | case GeomAbs_BSplineCurve: | |
43 | nbs = C->NbKnots(); | |
44 | nbs*= C->Degree(); | |
45 | nbs*= C->LastParameter()- C->FirstParameter(); | |
46 | nbs/= U1-U0; | |
47 | if(nbs < 2.0) nbs = 2.; | |
48 | break; | |
49 | default: | |
50 | break; | |
7fd59977 | 51 | } |
733a0e55 S |
52 | if (nbs>50.) |
53 | nbs = 50.; | |
7fd59977 | 54 | return((Standard_Integer)nbs); |
55 | } |