b311480e |
1 | // Created on: 1994-11-04 |
2 | // Created by: Frederic MAUPAS |
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 | //:p0 abv 19.02.99: management of 'done' flag improved |
22 | //:p3 abv 23.02.99: bm4_id_punch_d.stp #1313: shift of parameters on ellipse with R1 < R2 |
23 | |
24 | #include <StepToGeom_MakeTrimmedCurve2d.ixx> |
25 | #include <gp_Pnt2d.hxx> |
26 | #include <Geom2dConvert.hxx> |
27 | #include <Geom2d_CartesianPoint.hxx> |
28 | #include <Geom2d_Curve.hxx> |
29 | #include <Geom2d_TrimmedCurve.hxx> |
30 | #include <Geom2d_BSplineCurve.hxx> |
31 | #include <StepGeom_CartesianPoint.hxx> |
32 | #include <StepGeom_Line.hxx> |
33 | #include <StepGeom_Vector.hxx> |
34 | #include <StepGeom_Circle.hxx> |
35 | #include <StepGeom_Ellipse.hxx> |
36 | #include <StepGeom_Parabola.hxx> |
37 | #include <StepGeom_Hyperbola.hxx> |
38 | #include <StepGeom_TrimmingSelect.hxx> |
39 | #include <StepGeom_HArray1OfTrimmingSelect.hxx> |
40 | #include <StepGeom_TrimmedCurve.hxx> |
41 | #include <StepToGeom_MakeTrimmedCurve2d.hxx> |
42 | #include <StepToGeom_MakeCartesianPoint2d.hxx> |
43 | #include <StepToGeom_MakeCurve2d.hxx> |
44 | |
45 | #include <UnitsMethods.hxx> |
46 | |
47 | //============================================================================= |
48 | // Creation d'une Trimmed Curve de Geom2d a partir d' une Trimmed Curve de Step |
49 | //============================================================================= |
50 | // Shall be completed to treat trimming with points |
51 | |
52 | Standard_Boolean StepToGeom_MakeTrimmedCurve2d::Convert (const Handle(StepGeom_TrimmedCurve)& SC, Handle(Geom2d_BSplineCurve)& CC) |
53 | { |
54 | const Handle(StepGeom_Curve) BasisCurve = SC->BasisCurve(); |
55 | Handle(Geom2d_Curve) theGeomBasis; |
56 | if (!StepToGeom_MakeCurve2d::Convert(BasisCurve,theGeomBasis)) |
57 | return Standard_False; |
58 | |
59 | if (theGeomBasis->IsKind(STANDARD_TYPE(Geom2d_BSplineCurve))) { |
60 | CC = Handle(Geom2d_BSplineCurve)::DownCast(theGeomBasis); |
61 | return Standard_True; |
62 | } |
63 | |
64 | const Handle(StepGeom_HArray1OfTrimmingSelect)& theTrimSel1 = SC->Trim1(); |
65 | const Handle(StepGeom_HArray1OfTrimmingSelect)& theTrimSel2 = SC->Trim2(); |
66 | const Standard_Integer nbSel1 = SC->NbTrim1(); |
67 | const Standard_Integer nbSel2 = SC->NbTrim2(); |
2f6cb3ac |
68 | if ((nbSel1 == 1) && (nbSel2 == 1) && |
7fd59977 |
69 | (theTrimSel1->Value(1).CaseMember() > 0) && |
70 | (theTrimSel2->Value(1).CaseMember() > 0)) |
71 | { |
72 | const Standard_Real u1 = theTrimSel1->Value(1).ParameterValue(); |
73 | const Standard_Real u2 = theTrimSel2->Value(1).ParameterValue(); |
74 | Standard_Real fact = 1., shift = 0.; |
75 | |
76 | if (BasisCurve->IsKind(STANDARD_TYPE(StepGeom_Line))) { |
77 | const Handle(StepGeom_Line) theLine = Handle(StepGeom_Line)::DownCast(BasisCurve); |
78 | fact = theLine->Dir()->Magnitude(); |
79 | } |
80 | else if (BasisCurve->IsKind(STANDARD_TYPE(StepGeom_Circle)) || |
81 | BasisCurve->IsKind(STANDARD_TYPE(StepGeom_Ellipse))) { |
c6541a0c |
82 | // if (u1 > 2.1*M_PI || u2 > 2.1*M_PI) fact = M_PI / 180.; |
7fd59977 |
83 | fact = UnitsMethods::PlaneAngleFactor(); |
84 | //:p3 abv 23 Feb 99: shift on pi/2 on ellipse with R1 < R2 |
85 | const Handle(StepGeom_Ellipse) ellipse = Handle(StepGeom_Ellipse)::DownCast(BasisCurve); |
86 | if ( !ellipse.IsNull() && ellipse->SemiAxis1() - ellipse->SemiAxis2() < 0. ) |
c6541a0c |
87 | shift = 0.5 * M_PI; |
7fd59977 |
88 | } |
89 | else if (BasisCurve->IsKind(STANDARD_TYPE(StepGeom_Parabola)) || |
90 | BasisCurve->IsKind(STANDARD_TYPE(StepGeom_Hyperbola))) { |
91 | // LATER !!! |
92 | } |
93 | // CKY 16-DEC-1997 : USA60035 le texte de Part42 parle de degres |
94 | // mais des systemes ecrivent en radians. Exploiter UnitsMethods |
95 | |
96 | const Standard_Real newU1 = shift + u1 * fact; |
97 | const Standard_Real newU2 = shift + u2 * fact; |
98 | |
99 | const Handle(Geom2d_TrimmedCurve) theTrimmed = |
100 | new Geom2d_TrimmedCurve(theGeomBasis, newU1, newU2, SC->SenseAgreement()); |
101 | CC = Geom2dConvert::CurveToBSplineCurve(theTrimmed); |
102 | return Standard_True; |
103 | } |
104 | //#ifdef DEB |
105 | // else cout << "Warning: TrimmedCurve2d not translated" << endl; |
106 | //#endif |
107 | return Standard_False; |
108 | } |