b311480e |
1 | // Created on: 1995-07-17 |
2 | // Created by: Modelistation |
3 | // Copyright (c) 1995-1999 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 | #include CurveGen_hxx |
23 | #include <GeomAbs_CurveType.hxx> |
24 | #include <GeomAbs_Shape.hxx> |
25 | #include <Handle_Geom_BezierCurve.hxx> |
26 | #include <Handle_Geom_BSplineCurve.hxx> |
27 | |
28 | #include <TColStd_Array1OfReal.hxx> |
29 | |
30 | |
31 | //============================================================ |
32 | Standard_Integer BRepBlend_HCurveToolGen::NbSamples (const CurveGen& C, |
33 | const Standard_Real U0, |
34 | const Standard_Real U1) { |
35 | GeomAbs_CurveType typC = C->GetType(); |
36 | static Standard_Real nbsOther = 10.0; |
37 | Standard_Real nbs = nbsOther; |
38 | |
39 | if(typC == GeomAbs_Line) |
40 | nbs = 2; |
41 | else if(typC == GeomAbs_BezierCurve) |
42 | nbs = 3 + C->Bezier()->NbPoles(); |
43 | else if(typC == GeomAbs_BSplineCurve) { |
44 | Handle(Geom_BSplineCurve) BSC = C->BSpline(); |
45 | nbs = BSC->NbKnots(); |
46 | nbs*= BSC->Degree(); |
47 | nbs*= BSC->LastParameter()- BSC->FirstParameter(); |
48 | nbs/= U1-U0; |
49 | if(nbs < 2.0) nbs=2; |
50 | } |
51 | if(nbs>50) |
52 | nbs = 50; |
53 | return((Standard_Integer)nbs); |
54 | } |