+++ /dev/null
--- Created on: 1993-08-25
--- Created by: Bruno DUMORTIER
--- Copyright (c) 1993-1999 Matra Datavision
--- Copyright (c) 1999-2014 OPEN CASCADE SAS
---
--- This file is part of Open CASCADE Technology software library.
---
--- This library is free software; you can redistribute it and/or modify it under
--- the terms of the GNU Lesser General Public License version 2.1 as published
--- by the Free Software Foundation, with special exception defined in the file
--- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
--- distribution for complete text of the license and disclaimer of any warranty.
---
--- Alternatively, this file may be used under the terms of Open CASCADE
--- commercial license or contractual agreement.
-
-package GeomProjLib
-
----Purpose: Projection of a curve on a surface.
-
-uses
- gp,
- Geom,
- Geom2d
-
-is
-
- --
- -- package methods
- --
-
-
- Curve2d(C : Curve from Geom;
- First, Last : Real from Standard;
- S : Surface from Geom;
- UFirst,ULast,
- VFirst,VLast: Real from Standard ;
- Tolerance : in out Real from Standard )
- ---Purpose: gives the 2d-curve of a 3d-curve lying on a
- -- surface ( uses GeomProjLib_ProjectedCurve )
- -- The 3dCurve is taken between the parametrization
- -- range [First, Last]
- -- <Tolerance> is used as input if the projection needs
- -- an approximation. In this case, the reached
- -- tolerance is set in <Tolerance> as output.
- -- WARNING : if the projection has failed, this
- -- method returns a null Handle.
- returns Curve from Geom2d;
-
- Curve2d(C : Curve from Geom;
- First, Last : Real from Standard;
- S : Surface from Geom;
- Tolerance : in out Real from Standard )
- ---Purpose: gives the 2d-curve of a 3d-curve lying on a
- -- surface ( uses GeomProjLib_ProjectedCurve )
- -- The 3dCurve is taken between the parametrization
- -- range [First, Last]
- -- <Tolerance> is used as input if the projection needs
- -- an approximation. In this case, the reached
- -- tolerance is set in <Tolerance> as output.
- -- WARNING : if the projection has failed, this
- -- method returns a null Handle.
- returns Curve from Geom2d;
-
- Curve2d(C : Curve from Geom;
- First, Last : Real from Standard;
- S : Surface from Geom)
- ---Purpose: gives the 2d-curve of a 3d-curve lying on a
- -- surface ( uses GeomProjLib_ProjectedCurve )
- -- The 3dCurve is taken between the parametrization
- -- range [First, Last]
- -- If the projection needs an approximation,
- -- Precision::PApproximation() is used.
- -- WARNING : if the projection has failed, this
- -- method returns a null Handle.
- returns Curve from Geom2d;
-
- Curve2d(C : Curve from Geom;
- S : Surface from Geom )
- ---Purpose: gives the 2d-curve of a 3d-curve lying on a
- -- surface ( uses GeomProjLib_ProjectedCurve ).
- -- If the projection needs an approximation,
- -- Precision::PApproximation() is used.
- -- WARNING : if the projection has failed, this
- -- method returns a null Handle.
- returns Curve from Geom2d;
-
- Curve2d(C : Curve from Geom;
- S : Surface from Geom ;
- UDeb : Real from Standard ;
- UFin : Real from Standard ;
- VDeb : Real from Standard ;
- VFin : Real from Standard)
-
- ---Purpose: gives the 2d-curve of a 3d-curve lying on a
- -- surface ( uses GeomProjLib_ProjectedCurve ).
- -- If the projection needs an approximation,
- -- Precision::PApproximation() is used.
- -- WARNING : if the projection has failed, this
- -- method returns a null Handle.
- -- can expand a little the bounds of surface
- returns Curve from Geom2d;
-
- Curve2d(C : Curve from Geom;
- S : Surface from Geom;
- UDeb : Real from Standard ;
- UFin : Real from Standard ;
- VDeb : Real from Standard ;
- VFin : Real from Standard ;
- Tolerance : in out Real from Standard )
-
- ---Purpose: gives the 2d-curve of a 3d-curve lying on a
- -- surface ( uses GeomProjLib_ProjectedCurve ).
- -- If the projection needs an approximation,
- -- Precision::PApproximation() is used.
- -- WARNING : if the projection has failed, this
- -- method returns a null Handle.
- -- can expand a little the bounds of surface
- returns Curve from Geom2d;
-
-
- Project(C : Curve from Geom;
- S : Surface from Geom )
- ---Purpose: Constructs the 3d-curve from the normal
- -- projection of the Curve <C> on the surface <S>.
- -- WARNING : if the projection has failes returns a
- -- null Handle.
- returns Curve from Geom;
-
-
- ProjectOnPlane(Curve : Curve from Geom;
- Plane : Plane from Geom;
- Dir : Dir from gp ;
- KeepParametrization : Boolean from Standard)
- ---Purpose: Constructs the 3d-curves from the projection
- -- of the curve <Curve> on the plane <Plane> along
- -- the direction <Dir>.
- -- If <KeepParametrization> is true, the parametrization
- -- of the Projected Curve <PC> will be the same as the
- -- parametrization of the initial curve <C>.
- -- It meens: proj(C(u)) = PC(u) for each u.
- -- Otherwize, the parametrization may change.
- returns Curve from Geom;
-
-end GeomProjLib;
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