include/opencascade/IntPatch_WLineTool.hxx

0001 // Copyright (c) 1999-2014 OPEN CASCADE SAS
0002 //
0003 // This file is part of Open CASCADE Technology software library.
0004 //
0005 // This library is free software; you can redistribute it and/or modify it under
0006 // the terms of the GNU Lesser General Public License version 2.1 as published
0007 // by the Free Software Foundation, with special exception defined in the file
0008 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
0009 // distribution for complete text of the license and disclaimer of any warranty.
0010 //
0011 // Alternatively, this file may be used under the terms of Open CASCADE
0012 // commercial license or contractual agreement.
0013
0014 #ifndef _IntPatch_WLineTool_HeaderFile
0015 #define _IntPatch_WLineTool_HeaderFile
0016
0017 #include <IntPatch_Line.hxx>
0018 #include <NCollection_Sequence.hxx>
0019 #include <IntPatch_WLine.hxx>
0020 #include <NCollection_List.hxx>
0021
0022 class Adaptor3d_TopolTool;
0023
0024 //! IntPatch_WLineTool provides set of static methods related to walking lines.
0025 class IntPatch_WLineTool
0026 {
0027 public:
0028   DEFINE_STANDARD_ALLOC
0029
0030   //! I
0031   //! Removes equal points (leave one of equal points) from theWLine
0032   //! and recompute vertex parameters.
0033   //!
0034   //! II
0035   //! Removes point out of borders in case of non periodic surfaces.
0036   //!
0037   //! III
0038   //! Removes exceed points using tube criteria:
0039   //! delete 7D point if it lies near to expected lines in 2d and 3d.
0040   //! Each task (2d, 2d, 3d) have its own tolerance and checked separately.
0041   //!
0042   //! Returns new WLine or null WLine if the number
0043   //! of the points is less than 2.
0044   Standard_EXPORT static occ::handle<IntPatch_WLine> ComputePurgedWLine(
0045     const occ::handle<IntPatch_WLine>&      theWLine,
0046     const occ::handle<Adaptor3d_Surface>&   theS1,
0047     const occ::handle<Adaptor3d_Surface>&   theS2,
0048     const occ::handle<Adaptor3d_TopolTool>& theDom1,
0049     const occ::handle<Adaptor3d_TopolTool>& theDom2);
0050
0051   //! Joins all WLines from theSlin to one if it is possible and records
0052   //! the result into theSlin again. Lines will be kept to be split if:
0053   //! a) they are separated (has no common points);
0054   //! b) resulted line (after joining) go through seam-edges or surface boundaries.
0055   //!
0056   //! In addition, if points in theSPnt lies at least in one of the line in theSlin,
0057   //! this point will be deleted.
0058   Standard_EXPORT static void JoinWLines(NCollection_Sequence<occ::handle<IntPatch_Line>>& theSlin,
0059                                          NCollection_Sequence<IntPatch_Point>&             theSPnt,
0060                                          const occ::handle<Adaptor3d_Surface>&             theS1,
0061                                          const occ::handle<Adaptor3d_Surface>&             theS2,
0062                                          const double theTol3D);
0063
0064   //! Extends every line from theSlin (if it is possible) to be started/finished
0065   //! in strictly determined point (in the place of joint of two lines).
0066   //! As result, some gaps between two lines will vanish.
0067   //! The Walking lines are supposed (algorithm will do nothing for not-Walking line)
0068   //! to be computed as a result of intersection. Both theS1 and theS2
0069   //! must be quadrics. Other cases are not supported.
0070   //! theArrPeriods must be filled as follows (every value must not be negative;
0071   //! if the surface is not periodic the period must be equal to 0.0 strictly):
0072   //! {<U-period of 1st surface>, <V-period of 1st surface>,
0073   //!               <U-period of 2nd surface>, <V-period of 2nd surface>}.
0074   //! theListOfCriticalPoints must contain 3D-points where joining is disabled.
0075   Standard_EXPORT static void ExtendTwoWLines(
0076     NCollection_Sequence<occ::handle<IntPatch_Line>>& theSlin,
0077     const occ::handle<Adaptor3d_Surface>&             theS1,
0078     const occ::handle<Adaptor3d_Surface>&             theS2,
0079     const double                                      theToler3D,
0080     const double* const                               theArrPeriods,
0081     const Bnd_Box2d&                                  theBoxS1,
0082     const Bnd_Box2d&                                  theBoxS2,
0083     const NCollection_List<gp_Pnt>&                   theListOfCriticalPoints);
0084
0085   //! Max angle to concatenate two WLines to avoid result with C0-continuity
0086   static const double myMaxConcatAngle;
0087 };
0088
0089 #endif