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b311480e | 1 | -- Created on: 1994-11-14 |

2 | -- Created by: Bruno DUMORTIER | |

3 | -- Copyright (c) 1994-1999 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 | |

17 | private class MultiLine from BRepFill | |

18 | ||

19 | ---Purpose: Private class used to compute the 3d curve and the | |

20 | -- two 2d curves resulting from the intersection of a | |

21 | -- surface of linear extrusion( Bissec, Dz) and the 2 | |

22 | -- faces. | |

23 | -- This 3 curves will have the same parametrization | |

24 | -- as the Bissectrice. | |

25 | -- This class is to be send to an approximation | |

26 | -- routine. | |

27 | ||

28 | uses | |

29 | Face from TopoDS, | |

30 | Edge from TopoDS, | |

31 | Curve from Geom, | |

32 | Curve from Geom2d, | |

33 | Curve from Geom2dAdaptor, | |

34 | Pnt from gp, | |

35 | Pnt2d from gp, | |

36 | Shape from GeomAbs | |

37 | ||

38 | raises | |

39 | DomainError from Standard | |

40 | ||

41 | is | |

42 | Create; | |

43 | ||

44 | Create( Face1, Face2 : Face from TopoDS; | |

45 | Edge1, Edge2 : Edge from TopoDS; | |

46 | Inv1 , Inv2 : Boolean from Standard; | |

47 | Bissec : Curve from Geom2d ); | |

48 | ||

49 | IsParticularCase(me) | |

50 | returns Boolean from Standard | |

51 | ---Purpose: Search if the Projection of the Bissectrice on the | |

52 | -- faces needs an approximation or not. | |

53 | -- Returns true if the approximation is not needed. | |

54 | is static; | |

55 | ||

56 | Continuity (me) returns Shape from GeomAbs | |

57 | ---Purpose: Returns the continuity betwwen the two faces | |

58 | -- seShape from GeomAbsparated by myBis. | |

59 | is static; | |

60 | ||

61 | Curves(me; Curve : in out Curve from Geom; | |

62 | PCurve1 : in out Curve from Geom2d; | |

63 | PCurve2 : in out Curve from Geom2d) | |

64 | raises | |

65 | DomainError from Standard | |

66 | ---Purpose: raises if IsParticularCase is <False>. | |

67 | is static; | |

68 | ||

69 | FirstParameter(me) | |

70 | ---Purpose: returns the first parameter of the Bissectrice. | |

71 | returns Real from Standard is static; | |

72 | ||

73 | LastParameter(me) | |

74 | ---Purpose: returns the last parameter of the Bissectrice. | |

75 | returns Real from Standard is static; | |

76 | ||

77 | Value ( me; U : Real from Standard) | |

78 | ---Purpose: Returns the current point on the 3d curve | |

79 | returns Pnt from gp is static; | |

80 | ||

81 | ValueOnF1(me; U : Real from Standard) | |

82 | ---Purpose: returns the current point on the PCurve of the | |

83 | -- first face | |

84 | returns Pnt2d from gp is static; | |

85 | ||

86 | ValueOnF2(me; U : Real from Standard) | |

87 | ---Purpose: returns the current point on the PCurve of the | |

88 | -- first face | |

89 | returns Pnt2d from gp is static; | |

90 | ||

91 | Value3dOnF1OnF2(me; | |

92 | U : Real from Standard; | |

93 | P3d : in out Pnt from gp; | |

94 | PF1 : in out Pnt2d from gp; | |

95 | PF2 : in out Pnt2d from gp) | |

96 | is static; | |

97 | ||

98 | ||

99 | fields | |

100 | myFace1 : Face from TopoDS; | |

101 | myFace2 : Face from TopoDS; | |

102 | myU1 : Curve from Geom2dAdaptor; | |

103 | myV1 : Curve from Geom2dAdaptor; | |

104 | myU2 : Curve from Geom2dAdaptor; | |

105 | myV2 : Curve from Geom2dAdaptor; | |

106 | myIsoU1 : Boolean from Standard; | |

107 | myIsoU2 : Boolean from Standard; | |

108 | myBis : Curve from Geom2dAdaptor; | |

109 | myKPart : Integer from Standard; | |

110 | myCont : Shape from GeomAbs; | |

111 | ||

112 | end MultiLine; |