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//--------------------------------------------------------------------------- |
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//------------------------------------------------------------ |
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//------------------------------------------------------------ |
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// MAGiC |
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// Jean Christophe Cuilli�re et Vincent FRANCOIS |
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// D�partement de G�nie M�canique - UQTR |
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//------------------------------------------------------------ |
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// Le projet MAGIC est un projet de recherche du d�partement |
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// de g�nie m�canique de l'Universit� du Qu�bec � |
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// Trois Rivi�res |
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// Les librairies ne peuvent �tre utilis�es sans l'accord |
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// des auteurs (contact : francois@uqtr.ca) |
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//------------------------------------------------------------ |
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//------------------------------------------------------------ |
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// |
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// OCC_Surface.cpp |
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// |
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//------------------------------------------------------------ |
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//------------------------------------------------------------ |
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// COPYRIGHT 2000 |
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// Version du 02/03/2006 � 11H22 |
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//------------------------------------------------------------ |
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//------------------------------------------------------------ |
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|
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#pragma hdrstop |
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#include "gestionversion.h" |
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#ifdef BREP_OCC |
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|
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#include "occ_surface.h" |
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#include <gp_Pnt.hxx> |
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#include <gp_Vec.hxx> |
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#include "GeomAPI_ProjectPointOnSurf.hxx" |
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#include <ShapeAnalysis_Surface.hxx> |
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#include <BRep_Tool.hxx> |
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#include <BRepAdaptor_Surface.hxx> |
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//*********************************** |
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#include <BRep_Tool.hxx> |
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#include <Poly_Triangulation.hxx> |
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#include <Geom_Plane.hxx> |
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#include <gp_Pln.hxx> |
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#include <Geom_CylindricalSurface.hxx> |
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#include <gp_Cylinder.hxx> |
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#include <Geom_ConicalSurface.hxx> |
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#include <gp_Cone.hxx> |
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#include <Geom_SphericalSurface.hxx> |
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#include <IGESSolid_SphericalSurface.hxx> |
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#include <gp_Sphere.hxx> |
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#include "Geom_ToroidalSurface.hxx" |
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#include <gp_Torus.hxx> |
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#include <Geom_BSplineSurface.hxx> |
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#include <Geom_BezierSurface.hxx> |
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#include <GeomConvert.hxx> |
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#include <BRepBuilderAPI_NurbsConvert.hxx> |
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#include <BRepLib_FindSurface.hxx> |
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#include "mg_gestionnaire.h" |
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#include "constantegeo.h" |
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#include "ot_mathematique.h" |
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#include <Geom_RectangularTrimmedSurface.hxx> |
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#include <BRepClass_FaceClassifier.hxx> |
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#include <gp_Pnt2d.hxx> |
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#include <Geom_SurfaceOfRevolution.hxx> |
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|
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#pragma package(smart_init) |
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|
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|
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|
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class NOEUDARETE |
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{ |
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public: |
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MG_NOEUD* no; |
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MG_ARETE* are; |
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double t; |
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}; |
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|
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|
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|
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OCC_SURFACE::OCC_SURFACE(unsigned long num, TopoDS_Face srf, OCC_FONCTION* fonc):MG_SURFACE(num),face(srf), fonction1(fonc) |
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{ |
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surface=BRep_Tool::Surface(face); |
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//Handle(Geom_Surface) surface=BRep_Tool::Surface(face); |
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Handle(Standard_Type) type=surface->DynamicType(); |
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if(type==STANDARD_TYPE(Geom_RectangularTrimmedSurface)) |
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{ |
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Handle(Geom_RectangularTrimmedSurface) RTSurface = Handle(Geom_RectangularTrimmedSurface)::DownCast(surface); |
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surface = RTSurface->BasisSurface(); |
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} |
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double u1; |
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double u2; |
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double v1; |
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double v2; |
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surface->Bounds(u1,u2,v1, v2); |
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u_min=u1; |
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u_max=u2; |
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v_min=v1; |
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v_max=v2; |
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estperiodeu=surface->IsUClosed(); |
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estperiodev=surface->IsVClosed(); |
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if (surface->IsUPeriodic()) periode_u=surface->UPeriod(); |
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else if (surface->IsUClosed()) periode_u= u_max-u_min; |
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else periode_u=0; |
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if (surface->IsVPeriodic()) periode_v=surface->VPeriod(); |
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else if (surface->IsVClosed()) periode_v= v_max-v_min; |
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else periode_v=0; |
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if (type==STANDARD_TYPE(Geom_BSplineSurface)) |
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analyse_bspline(); |
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|
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//************************************************************** |
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// ShapeAnalysis::GetFaceUVBounds(face,u_min,u_max,v_min,v_max); |
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//************************************************************** |
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|
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} |
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|
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OCC_SURFACE::OCC_SURFACE(TopoDS_Face srf, OCC_FONCTION* fonc):MG_SURFACE(),face(srf), fonction1(fonc) |
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{ |
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//Handle(Geom_Surface) surface=BRep_Tool::Surface(face); |
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surface=BRep_Tool::Surface(face); |
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Handle(Standard_Type) type=surface->DynamicType(); |
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if(type==STANDARD_TYPE(Geom_RectangularTrimmedSurface)) |
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{ |
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Handle(Geom_RectangularTrimmedSurface) RTSurface = Handle(Geom_RectangularTrimmedSurface)::DownCast(surface); |
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surface = RTSurface->BasisSurface(); |
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} |
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double u1; |
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double u2; |
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double v1; |
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double v2; |
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surface->Bounds(u1,u2,v1, v2); |
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u_min=u1; |
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u_max=u2; |
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v_min=v1; |
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v_max=v2; |
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estperiodeu=surface->IsUClosed(); |
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estperiodev=surface->IsVClosed(); |
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if (surface->IsUPeriodic()) periode_u=surface->UPeriod(); |
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else if (surface->IsUClosed()) periode_u= u_max-u_min; |
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else periode_u=0; |
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if (surface->IsVPeriodic()) periode_v=surface->VPeriod(); |
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else if (surface->IsVClosed()) periode_v= v_max-v_min; |
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else periode_v=0; |
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if (type==STANDARD_TYPE(Geom_BSplineSurface)) |
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analyse_bspline(); |
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//************************************************************** |
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// ShapeAnalysis::GetFaceUVBounds(face,u_min,u_max,v_min,v_max); |
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//************************************************************** |
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|
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|
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// std::cout << " " <<std::endl; |
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// Handle(Standard_Type) type=surface->DynamicType(); |
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// if (type==STANDARD_TYPE(Geom_Plane)) std::cout << "plan" << std::endl; |
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// else if (type==STANDARD_TYPE(Geom_CylindricalSurface)) std::cout << "Cylindre" << std::endl; |
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// else if (type==STANDARD_TYPE(Geom_ConicalSurface)) std::cout << "Cone" << std::endl; |
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// else if (type==STANDARD_TYPE(Geom_SphericalSurface)) std::cout << "Sphere" << std::endl; |
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// else if (type==STANDARD_TYPE(Geom_ToroidalSurface)) std::cout << "Tore" << std::endl; |
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// else if (type==STANDARD_TYPE(Geom_BSplineSurface)) std::cout << "Bspline surf" << std::endl; |
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// else std::cout << type->Name() << std::endl; |
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// |
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// std::cout << surface->IsUClosed()<< " " <<surface->IsVClosed() <<std::endl;; |
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// std::cout << surface->IsUPeriodic() <<" " <<surface->IsVPeriodic() << std::endl;; |
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// if (surface->IsUPeriodic()) std::cout << "Pu=" << surface->UPeriod() << std::endl;; |
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// if (surface->IsVPeriodic()) std::cout << "Pv=" << surface->VPeriod() << std::endl;; |
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} |
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|
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OCC_SURFACE::OCC_SURFACE(OCC_SURFACE& mdd):MG_SURFACE(mdd),face(mdd.face), fonction1(mdd.fonction1) |
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{ |
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//Handle(Geom_Surface) surface=BRep_Tool::Surface(face); |
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surface=BRep_Tool::Surface(face); |
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Handle(Standard_Type) type=surface->DynamicType(); |
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if(type==STANDARD_TYPE(Geom_RectangularTrimmedSurface)) |
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{ |
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Handle(Geom_RectangularTrimmedSurface) RTSurface = Handle(Geom_RectangularTrimmedSurface)::DownCast(surface); |
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surface = RTSurface->BasisSurface(); |
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} |
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u_min=mdd.get_umin(); |
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u_max=mdd.get_umax(); |
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v_min=mdd.get_vmin(); |
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v_max=mdd.get_vmax(); |
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estperiodeu=mdd.estperiodeu; |
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estperiodev=mdd.estperiodev; |
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periode_u=mdd.periode_u; |
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periode_v=mdd.periode_v; |
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} |
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OCC_SURFACE::~OCC_SURFACE() |
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{ |
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} |
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void OCC_SURFACE::evaluer(double *uv,double *xyz) |
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{ |
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|
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//const Handle(Geom_Surface) &surface=BRep_Tool::Surface(face); |
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gp_Pnt P; |
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double u=uv[0]; |
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double v=uv[1]; |
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|
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surface->D0(u,v,P); |
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|
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xyz[0]=P.X(); |
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xyz[1]=P.Y(); |
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xyz[2]=P.Z(); |
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} |
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void OCC_SURFACE::deriver(double *uv,double *xyzdu, double *xyzdv) |
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{ |
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//Handle(Geom_Surface) surface=BRep_Tool::Surface(face); |
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double u=uv[0]; |
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double v=uv[1]; |
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gp_Vec D1U; |
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gp_Vec D1V; |
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gp_Pnt P; |
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|
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surface->D1(u,v,P,D1U,D1V); |
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xyzdu[0]=D1U.X(); |
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xyzdu[1]=D1U.Y(); |
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xyzdu[2]=D1U.Z(); |
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|
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xyzdv[0]=D1V.X(); |
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xyzdv[1]=D1V.Y(); |
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xyzdv[2]=D1V.Z(); |
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|
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} |
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void OCC_SURFACE::deriver_seconde(double *uv,double* xyzduu,double* xyzduv,double* xyzdvv,double *xyz, double *xyzdu, double *xyzdv) |
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{ |
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//Handle(Geom_Surface) surface=BRep_Tool::Surface(face); |
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double u=uv[0]; |
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double v=uv[1]; |
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gp_Pnt P; |
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gp_Vec D1U; |
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gp_Vec D1V; |
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gp_Vec D2U; |
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gp_Vec D2V; |
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gp_Vec D2UV; |
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|
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surface->D2(u,v,P,D1U,D1V,D2U,D2V,D2UV); |
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|
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xyz[0]=P.X(); |
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xyz[1]=P.Y(); |
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xyz[2]=P.Z(); |
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|
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xyzdu[0]=D1U.X(); |
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xyzdu[1]=D1U.Y(); |
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xyzdu[2]=D1U.Z(); |
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|
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xyzdv[0]=D1V.X(); |
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xyzdv[1]=D1V.Y(); |
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xyzdv[2]=D1V.Z(); |
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|
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xyzduu[0]=D2U.X(); |
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xyzduu[1]=D2U.Y(); |
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xyzduu[2]=D2U.Z(); |
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|
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xyzdvv[0]=D2V.X(); |
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xyzdvv[1]=D2V.Y(); |
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xyzdvv[2]=D2V.Z(); |
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|
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xyzduv[0]=D2UV.X(); |
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xyzduv[1]=D2UV.Y(); |
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xyzduv[2]=D2UV.Z(); |
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|
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} |
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|
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void OCC_SURFACE::inverser(double *uv,double *xyz,double precision) |
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{ |
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// Handle(Geom_Surface) surface=BRep_Tool::Surface(face); |
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double u=xyz[0]; |
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double v=xyz[1]; |
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double w=xyz[2]; |
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gp_Pnt P(u,v,w); |
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|
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//ShapeAnalysis_Surface SAS(surface); |
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//gp_Pnt2d pnt2d=SAS.ValueOfUV(P, precision); |
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GeomAPI_ProjectPointOnSurf PPS(P,surface, precision); |
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double dist=PPS.LowerDistance(); |
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if (dist>precision) |
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inverser2(uv,xyz,precision); |
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else |
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{ |
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double UU, VV; |
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PPS.LowerDistanceParameters(UU,VV); |
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uv[0]=UU; |
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uv[1]=VV; |
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} |
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} |
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|
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bool OCC_SURFACE::est_sur_surface(double* xyz, double precision) |
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{ |
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#ifdef ALL_OCC |
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GeomAPI_ProjectPointOnSurf projecteur; |
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double u0, u1; |
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double v0, v1; |
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ShapeAnalysis::GetFaceUVBounds(face,u0,u1,v0,v1); |
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gp_Pnt point(xyz[0],xyz[1],xyz[2]); |
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projecteur.Init(point,surface,u0,u1,v0,v1); |
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if(projecteur.NbPoints()==0) return false; |
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if(projecteur.LowerDistance()<precision) return true; |
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return false; |
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#else |
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std::cerr << "OCC_SURFACE::est_sur_surface(double* xyz, double precision) --> Non disponible" << std::endl; |
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#endif |
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|
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} |
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|
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int OCC_SURFACE::est_periodique_u(void) |
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{ |
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//Handle(Geom_Surface) surface=BRep_Tool::Surface(face); |
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//return surface->IsUClosed(); |
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return estperiodeu; |
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} |
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|
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int OCC_SURFACE::est_periodique_v(void) |
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{ |
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//Handle(Geom_Surface) surface=BRep_Tool::Surface(face); |
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// return surface->IsVPeriodic(); |
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// return surface->IsVClosed(); |
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return estperiodev; |
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} |
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double OCC_SURFACE::get_periode_u(void) |
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{ |
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//Handle(Geom_Surface) surface=BRep_Tool::Surface(face); |
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//if (surface->IsUPeriodic()) return surface->UPeriod(); |
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//if (surface->IsUClosed()) return u_max-u_min; |
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//return 1; |
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return periode_u; |
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} |
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|
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double OCC_SURFACE::get_periode_v(void) |
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{ |
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//Handle(Geom_Surface) surface=BRep_Tool::Surface(face); |
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//if (surface->IsVPeriodic()) return surface->VPeriod(); |
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//if (surface->IsVClosed()) return v_max-v_min; |
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//return 0; |
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return periode_v; |
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|
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} |
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|
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void OCC_SURFACE::enregistrer(std::ostream& o,double version) |
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{ |
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if(fonction1->get_version()=="OCCV2017") |
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{ |
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o <<"%"<<get_id()<< "=SURFACE_OCC("<< get_idoriginal() << ");" << std::endl; |
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} |
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else |
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{ |
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o <<"%"<<get_id()<< "=SURFACE_OCC("<< fonction1->GetID(face)<< ");" << std::endl; |
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} |
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} |
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int OCC_SURFACE::get_type_geometrique(TPL_LISTE_ENTITE<double> ¶m) |
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{ |
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//Handle(Geom_Surface) surface=BRep_Tool::Surface(face); |
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Handle(Standard_Type) type=surface->DynamicType(); |
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//******plan |
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if (type==STANDARD_TYPE(Geom_Plane)) |
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{ |
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Handle(Geom_Plane) Pln=Handle(Geom_Plane)::DownCast(surface); |
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gp_Pln plan=Pln->Pln(); |
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|
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double origine[3]; |
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gp_Pnt centre=plan.Location(); |
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|
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origine[0]=centre.X(); |
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origine[1]=centre.Y(); |
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origine[2]=centre.Z(); |
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|
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double normal[3]; |
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gp_Ax1 axe=plan.Axis(); |
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gp_Dir direction=axe.Direction(); |
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|
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normal[0]=direction.X(); |
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normal[1]=direction.Y(); |
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normal[2]=direction.Z(); |
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|
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param.ajouter(origine[0]); |
| 369 |
param.ajouter(origine[1]); |
| 370 |
param.ajouter(origine[2]); |
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param.ajouter(normal[0]); |
| 372 |
param.ajouter(normal[1]); |
| 373 |
param.ajouter(normal[2]); |
| 374 |
|
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return MGCo_PLAN; |
| 376 |
} |
| 377 |
//******cylindre |
| 378 |
if (type==STANDARD_TYPE(Geom_CylindricalSurface)) |
| 379 |
{ |
| 380 |
Handle(Geom_CylindricalSurface) cylinder=Handle(Geom_CylindricalSurface)::DownCast(surface); |
| 381 |
gp_Cylinder cylin=cylinder->Cylinder(); |
| 382 |
|
| 383 |
double origine[3]; |
| 384 |
gp_Pnt centre=cylin.Location(); |
| 385 |
origine[0]=centre.X(); |
| 386 |
origine[1]=centre.Y(); |
| 387 |
origine[2]=centre.Z(); |
| 388 |
double directionX[3]; |
| 389 |
double direction[3]; |
| 390 |
double rayon; |
| 391 |
rayon=cylin.Radius(); |
| 392 |
|
| 393 |
gp_Ax3 repere=cylin.Position(); |
| 394 |
gp_Dir dirX=repere.XDirection(); |
| 395 |
gp_Dir dirZ=repere.Direction(); |
| 396 |
directionX[0]=dirX.X(); |
| 397 |
directionX[1]=dirX.Y(); |
| 398 |
directionX[2]=dirX.Z(); |
| 399 |
direction[0]=dirZ.X(); |
| 400 |
direction[1]=dirZ.Y(); |
| 401 |
direction[2]=dirZ.Z(); |
| 402 |
|
| 403 |
|
| 404 |
|
| 405 |
param.ajouter(origine[0]); |
| 406 |
param.ajouter(origine[1]); |
| 407 |
param.ajouter(origine[2]); |
| 408 |
param.ajouter(directionX[0]); |
| 409 |
param.ajouter(directionX[1]); |
| 410 |
param.ajouter(directionX[2]); |
| 411 |
param.ajouter(direction[0]); |
| 412 |
param.ajouter(direction[1]); |
| 413 |
param.ajouter(direction[2]); |
| 414 |
param.ajouter(rayon); |
| 415 |
param.ajouter(rayon); |
| 416 |
|
| 417 |
return MGCo_CYLINDRE; |
| 418 |
} |
| 419 |
//******Cone |
| 420 |
if (type==STANDARD_TYPE(Geom_ConicalSurface)) |
| 421 |
{ |
| 422 |
Handle(Geom_ConicalSurface) cone=Handle(Geom_ConicalSurface)::DownCast(surface); |
| 423 |
gp_Cone con=cone->Cone(); |
| 424 |
|
| 425 |
double origine[3]; |
| 426 |
gp_Pnt centre=con.Location(); |
| 427 |
origine[0]=centre.X(); |
| 428 |
origine[1]=centre.Y(); |
| 429 |
origine[2]=centre.Z(); |
| 430 |
double direction[3]; |
| 431 |
double directionX[3]; |
| 432 |
double rayon; |
| 433 |
rayon=con.RefRadius(); |
| 434 |
double angle; |
| 435 |
angle=con.SemiAngle(); |
| 436 |
|
| 437 |
gp_Ax3 repere=con.Position(); |
| 438 |
gp_Dir dirX=repere.XDirection(); |
| 439 |
gp_Dir dirZ=repere.Direction(); |
| 440 |
directionX[0]=dirX.X(); |
| 441 |
directionX[1]=dirX.Y(); |
| 442 |
directionX[2]=dirX.Z(); |
| 443 |
direction[0]=dirZ.X(); |
| 444 |
direction[1]=dirZ.Y(); |
| 445 |
direction[2]=dirZ.Z(); |
| 446 |
param.ajouter(origine[0]); |
| 447 |
param.ajouter(origine[1]); |
| 448 |
param.ajouter(origine[2]); |
| 449 |
param.ajouter(directionX[0]); |
| 450 |
param.ajouter(directionX[1]); |
| 451 |
param.ajouter(directionX[2]); |
| 452 |
param.ajouter(direction[0]); |
| 453 |
param.ajouter(direction[1]); |
| 454 |
param.ajouter(direction[2]); |
| 455 |
param.ajouter(rayon); |
| 456 |
param.ajouter(rayon); |
| 457 |
param.ajouter(cos(angle)); |
| 458 |
param.ajouter(sin(angle)); |
| 459 |
|
| 460 |
return MGCo_CONE; |
| 461 |
|
| 462 |
} |
| 463 |
//*****Sphere |
| 464 |
if (type==STANDARD_TYPE(Geom_SphericalSurface)) |
| 465 |
{ |
| 466 |
Handle(Geom_SphericalSurface) sphere=Handle(Geom_SphericalSurface)::DownCast(surface); |
| 467 |
gp_Sphere sph=sphere->Sphere(); |
| 468 |
|
| 469 |
double origine[3]; |
| 470 |
gp_Pnt centre=sph.Location(); |
| 471 |
origine[0]=centre.X(); |
| 472 |
origine[1]=centre.Y(); |
| 473 |
origine[2]=centre.Z(); |
| 474 |
double rayon; |
| 475 |
rayon=sph.Radius(); |
| 476 |
param.ajouter(origine[0]); |
| 477 |
param.ajouter(origine[1]); |
| 478 |
param.ajouter(origine[2]); |
| 479 |
param.ajouter(rayon); |
| 480 |
|
| 481 |
return MGCo_SPHERE; |
| 482 |
|
| 483 |
} |
| 484 |
//****** Tore |
| 485 |
if (type==STANDARD_TYPE(Geom_ToroidalSurface)) |
| 486 |
{ |
| 487 |
Handle(Geom_ToroidalSurface) tore=Handle(Geom_ToroidalSurface)::DownCast(surface); |
| 488 |
gp_Torus tro=tore->Torus(); |
| 489 |
double origine[3]; |
| 490 |
gp_Pnt centre=tro.Location(); |
| 491 |
origine[0]=centre.X(); |
| 492 |
origine[1]=centre.Y(); |
| 493 |
origine[2]=centre.Z(); |
| 494 |
double direction[3]; |
| 495 |
double directionX[3]; |
| 496 |
double Grayon; |
| 497 |
Grayon=tro.MajorRadius(); |
| 498 |
double Prayon; |
| 499 |
Prayon=tro.MinorRadius(); |
| 500 |
gp_Ax3 repere=tro.Position(); |
| 501 |
gp_Dir dirX=repere.XDirection(); |
| 502 |
gp_Dir dirZ=repere.Direction(); |
| 503 |
directionX[0]=dirX.X(); |
| 504 |
directionX[1]=dirX.Y(); |
| 505 |
directionX[2]=dirX.Z(); |
| 506 |
direction[0]=dirZ.X(); |
| 507 |
direction[1]=dirZ.Y(); |
| 508 |
direction[2]=dirZ.Z(); |
| 509 |
param.ajouter(origine[0]); |
| 510 |
param.ajouter(origine[1]); |
| 511 |
param.ajouter(origine[2]); |
| 512 |
param.ajouter(directionX[0]); |
| 513 |
param.ajouter(directionX[1]); |
| 514 |
param.ajouter(directionX[2]); |
| 515 |
param.ajouter(direction[0]); |
| 516 |
param.ajouter(direction[1]); |
| 517 |
param.ajouter(direction[2]); |
| 518 |
param.ajouter(Grayon); |
| 519 |
param.ajouter(Prayon); |
| 520 |
|
| 521 |
return MGCo_TORE; |
| 522 |
|
| 523 |
} |
| 524 |
//*******BSpline |
| 525 |
if (type==STANDARD_TYPE(Geom_BSplineSurface)) |
| 526 |
{ |
| 527 |
Handle(Geom_BSplineSurface) bspline=Handle(Geom_BSplineSurface)::DownCast(surface); |
| 528 |
|
| 529 |
//nombre des noeuds suivant Udirection |
| 530 |
int nb_Uknot=bspline->NbUKnots(); |
| 531 |
//valeur de Unoeud |
| 532 |
for (int i=1; i<=nb_Uknot; i++) |
| 533 |
{ |
| 534 |
double Uvaleur=bspline->UKnot(i); |
| 535 |
param.ajouter(Uvaleur); |
| 536 |
} |
| 537 |
//nombre des noeuds suivants Vdirection |
| 538 |
int nb_Vknot=bspline->NbVKnots(); |
| 539 |
//valeur de Vnoeud |
| 540 |
for (int j=1; j<=nb_Vknot; j++) |
| 541 |
{ |
| 542 |
double Vvaleur=bspline->VKnot(j); |
| 543 |
param.ajouter(Vvaleur); |
| 544 |
} |
| 545 |
//point de controle et poids |
| 546 |
gp_Pnt pctr; |
| 547 |
double poids; |
| 548 |
for (int u=1; u<=bspline->NbUPoles(); u++) |
| 549 |
for (int v=1; v<=bspline->NbVPoles(); v++) |
| 550 |
{ |
| 551 |
pctr=bspline->Pole(u, v); |
| 552 |
|
| 553 |
param.ajouter(pctr.X()); |
| 554 |
param.ajouter(pctr.Y()); |
| 555 |
param.ajouter(pctr.Z()); |
| 556 |
|
| 557 |
poids=bspline->Weight(u, v); |
| 558 |
param.ajouter(poids); |
| 559 |
} |
| 560 |
|
| 561 |
double uDegree=bspline->UDegree(); |
| 562 |
param.ajouter(uDegree); |
| 563 |
double vDegree=bspline->VDegree(); |
| 564 |
param.ajouter(vDegree); |
| 565 |
return MGCo_BSPLINES; |
| 566 |
} |
| 567 |
return 0; |
| 568 |
} |
| 569 |
void OCC_SURFACE::get_param_NURBS(int& indx_premier_ptctr,TPL_LISTE_ENTITE<double> ¶m) |
| 570 |
{ |
| 571 |
//Conversion of the complete geometry of a shape into |
| 572 |
//NURBS geometry |
| 573 |
BRepBuilderAPI_NurbsConvert NURBS(face); |
| 574 |
Handle(Geom_Surface) surface=BRepLib_FindSurface(NURBS).Surface(); |
| 575 |
Handle(Geom_BSplineSurface) bspline=GeomConvert::SurfaceToBSplineSurface(surface) ; |
| 576 |
|
| 577 |
// The first parameter indicate the code access |
| 578 |
param.ajouter(2); |
| 579 |
//The follewing two parameters of the list indicate the orders of the net points |
| 580 |
param.ajouter( bspline->UDegree()+1); |
| 581 |
param.ajouter(bspline->VDegree()+1); |
| 582 |
|
| 583 |
//The follewing two parameters indicate the number of rows and colons of the control points |
| 584 |
//respectively to the two parameters directions |
| 585 |
param.ajouter(bspline->NbUPoles()); |
| 586 |
param.ajouter(bspline->NbVPoles()); |
| 587 |
|
| 588 |
// this present the knot vector in the u-direction |
| 589 |
for (unsigned int i=1;i<=bspline->NbUKnots();i++) |
| 590 |
{ |
| 591 |
param.ajouter(bspline->UKnot(i)); |
| 592 |
} |
| 593 |
//This present the knot vector in the v-direction |
| 594 |
for (unsigned int j=1;j<=bspline->NbVKnots();j++) |
| 595 |
{ |
| 596 |
param.ajouter(bspline->VKnot(j)); |
| 597 |
} |
| 598 |
for (int v=1;v<=bspline->NbVPoles();v++) |
| 599 |
{ |
| 600 |
for (int u=1;u<=bspline->NbUPoles();u++) |
| 601 |
{ |
| 602 |
double w=bspline->Weight(u,v); |
| 603 |
gp_Pnt point=bspline->Pole(u, v); |
| 604 |
double x=point.X(); |
| 605 |
double y=point.Y(); |
| 606 |
double z=point.Z(); |
| 607 |
param.ajouter(x); |
| 608 |
param.ajouter(y); |
| 609 |
param.ajouter(z); |
| 610 |
param.ajouter(w); |
| 611 |
} |
| 612 |
|
| 613 |
} |
| 614 |
indx_premier_ptctr=5+bspline->NbUKnots()+bspline->NbVKnots(); |
| 615 |
|
| 616 |
|
| 617 |
|
| 618 |
|
| 619 |
|
| 620 |
} |
| 621 |
|
| 622 |
void OCC_SURFACE::get_triangulation(MG_MAILLAGE* mai,MG_FACE* mgface,std::multimap<double,MG_NOEUD*,std::less<double> >& tabnoeudfus,double eps,int mode) |
| 623 |
{ |
| 624 |
TPL_MAP_ENTITE<MG_SOMMET*> listsom; |
| 625 |
TPL_MAP_ENTITE<MG_ARETE*> listare; |
| 626 |
//std::map<unsigned long,bool> aretemaille; |
| 627 |
std::map<unsigned long,std::map<double,NOEUDARETE,std::less<double> >,std::less<unsigned long> > areteamaille; |
| 628 |
int nbboucle=mgface->get_nb_mg_boucle(); |
| 629 |
for (int i=0;i<nbboucle;i++) |
| 630 |
{ |
| 631 |
MG_BOUCLE* bou=mgface->get_mg_boucle(i); |
| 632 |
int nbarete=bou->get_nb_mg_coarete(); |
| 633 |
for (int j=0;j<nbarete;j++) |
| 634 |
{ |
| 635 |
MG_ARETE* are=bou->get_mg_coarete(j)->get_arete(); |
| 636 |
listare.ajouter(are); |
| 637 |
//bool amailler=true; |
| 638 |
//if (are->get_lien_maillage()->get_nb()>0) amailler=false; |
| 639 |
//aretemaille[are->get_id()]=amailler; |
| 640 |
listsom.ajouter(bou->get_mg_coarete(j)->get_arete()->get_cosommet1()->get_sommet()); |
| 641 |
listsom.ajouter(bou->get_mg_coarete(j)->get_arete()->get_cosommet2()->get_sommet()); |
| 642 |
std::map<double,NOEUDARETE,std::less<double> > tmp; |
| 643 |
std::pair<unsigned long,std::map<double,NOEUDARETE,std::less<double> > > maptmp(are->get_id(),tmp); |
| 644 |
areteamaille.insert(maptmp); |
| 645 |
} |
| 646 |
} |
| 647 |
|
| 648 |
|
| 649 |
TopLoc_Location L; |
| 650 |
Handle (Poly_Triangulation) pt=BRep_Tool::Triangulation(face,L); |
| 651 |
int nbnoeud=pt->NbNodes(); |
| 652 |
int nbmaille=pt->NbTriangles(); |
| 653 |
const TColgp_Array1OfPnt& nodes = pt->Nodes(); |
| 654 |
const Poly_Array1OfTriangle& triangles = pt->Triangles(); |
| 655 |
const TColgp_Array1OfPnt2d& uvNodes = pt->UVNodes(); |
| 656 |
std::vector<MG_NOEUD*> tabnoeud; |
| 657 |
for ( Standard_Integer i = 0; i < nbnoeud; i++ ) |
| 658 |
{ |
| 659 |
gp_Pnt p1=nodes(i+1); |
| 660 |
double xx=p1.X(); |
| 661 |
double yy=p1.Y(); |
| 662 |
double zz=p1.Z(); |
| 663 |
double key=fabs(xx)+fabs(yy)+fabs(zz); |
| 664 |
MG_NOEUD* nvnoeud=NULL; |
| 665 |
if (mode>1) |
| 666 |
{ |
| 667 |
std::multimap<double,MG_NOEUD*,std::less<double> >::iterator it,itbas,ithaut; |
| 668 |
itbas=tabnoeudfus.lower_bound(key*0.99); |
| 669 |
ithaut=tabnoeudfus.upper_bound(key*1.1010101); |
| 670 |
for ( it=itbas ; it != ithaut; it++ ) |
| 671 |
{ |
| 672 |
MG_NOEUD* ntmp=(*it).second; |
| 673 |
double xtmp=ntmp->get_x(); |
| 674 |
double ytmp=ntmp->get_y(); |
| 675 |
double ztmp=ntmp->get_z(); |
| 676 |
OT_VECTEUR_3D vec(xtmp-xx,ytmp-yy,ztmp-zz); |
| 677 |
if (vec.get_longueur()<1e-6*eps) { |
| 678 |
nvnoeud=ntmp; |
| 679 |
break; |
| 680 |
} |
| 681 |
} |
| 682 |
} |
| 683 |
if (nvnoeud==NULL) |
| 684 |
{ |
| 685 |
MG_ELEMENT_TOPOLOGIQUE *topo=mgface; |
| 686 |
TPL_MAP_ENTITE<MG_SOMMET*>::ITERATEUR it1; |
| 687 |
for (MG_SOMMET* som=listsom.get_premier(it1);som!=NULL;som=listsom.get_suivant(it1)) |
| 688 |
{ |
| 689 |
double xyz[3]; |
| 690 |
som->get_point()->evaluer(xyz); |
| 691 |
OT_VECTEUR_3D vec(xyz[0]-xx,xyz[1]-yy,xyz[2]-zz); |
| 692 |
if (vec.get_longueur()<1e-6*eps) |
| 693 |
{ |
| 694 |
topo=som; |
| 695 |
break; |
| 696 |
|
| 697 |
} |
| 698 |
} |
| 699 |
double param_t; |
| 700 |
if (topo==mgface) |
| 701 |
{ |
| 702 |
TPL_MAP_ENTITE<MG_ARETE*>::ITERATEUR it2; |
| 703 |
for (MG_ARETE* are=listare.get_premier(it2);are!=NULL;are=listare.get_suivant(it2)) |
| 704 |
{ |
| 705 |
double t; |
| 706 |
double xyz[3]={xx,yy,zz}; |
| 707 |
are->inverser(t,xyz); |
| 708 |
if (are->get_courbe()->est_periodique()) |
| 709 |
if (t< are->get_tmin()) t=t+are->get_courbe()->get_periode(); |
| 710 |
double xyztmp[3]; |
| 711 |
are->evaluer(t,xyztmp ); |
| 712 |
OT_VECTEUR_3D vec(xyz,xyztmp); |
| 713 |
if (vec.get_longueur()<1e-6*eps) |
| 714 |
if ((t>are->get_tmin()) && (t<are->get_tmax())) |
| 715 |
{ |
| 716 |
topo=are; |
| 717 |
param_t=t; |
| 718 |
break; |
| 719 |
} |
| 720 |
} |
| 721 |
} |
| 722 |
nvnoeud=new MG_NOEUD(topo,xx,yy,zz,MAGIC::ORIGINE::TRIANGULATION); |
| 723 |
mai->ajouter_mg_noeud(nvnoeud); |
| 724 |
std::pair<double,MG_NOEUD*> tmp(key,nvnoeud); |
| 725 |
tabnoeudfus.insert(tmp); |
| 726 |
if (topo->get_dimension()==1) |
| 727 |
{ |
| 728 |
NOEUDARETE na; |
| 729 |
na.no=nvnoeud; |
| 730 |
na.are=(MG_ARETE*)topo; |
| 731 |
na.t=param_t; |
| 732 |
std::pair<double,NOEUDARETE> tmp(na.t,na); |
| 733 |
areteamaille[topo->get_id()].insert(tmp); |
| 734 |
} |
| 735 |
} |
| 736 |
|
| 737 |
|
| 738 |
tabnoeud.insert(tabnoeud.end(),nvnoeud); |
| 739 |
} |
| 740 |
for ( Standard_Integer i = 0; i < nbmaille; i++ ) |
| 741 |
{ |
| 742 |
int n1,n2,n3; |
| 743 |
Poly_Triangle triangle = triangles( i + 1 ); |
| 744 |
bool face_reversed = (face.Orientation() == TopAbs_REVERSED); |
| 745 |
if ( face_reversed ) |
| 746 |
triangle.Get( n1, n3, n2 ); |
| 747 |
else |
| 748 |
triangle.Get( n1, n2, n3 ); |
| 749 |
MG_NOEUD* noeud1=tabnoeud[n1-1]; |
| 750 |
MG_NOEUD* noeud2=tabnoeud[n2-1]; |
| 751 |
MG_NOEUD* noeud3=tabnoeud[n3-1]; |
| 752 |
if (noeud1==noeud2) continue; |
| 753 |
if (noeud1==noeud3) continue; |
| 754 |
if (noeud2==noeud3) continue; |
| 755 |
mai->ajouter_mg_triangle(mgface,noeud1,noeud2,noeud3,MAGIC::ORIGINE::TRIANGULATION); |
| 756 |
/*if (noeud1->get_lien_topologie()->get_dimension()==0) |
| 757 |
{ |
| 758 |
MG_SOMMET* som=(MG_SOMMET*)noeud1->get_lien_topologie(); |
| 759 |
som->get_lien_maillage()->ajouter(noeud1); |
| 760 |
} |
| 761 |
if (noeud2->get_lien_topologie()->get_dimension()==0) |
| 762 |
{ |
| 763 |
MG_SOMMET* som=(MG_SOMMET*)noeud2->get_lien_topologie(); |
| 764 |
som->get_lien_maillage()->ajouter(noeud2); |
| 765 |
} |
| 766 |
if (noeud3->get_lien_topologie()->get_dimension()==0) |
| 767 |
{ |
| 768 |
MG_SOMMET* som=(MG_SOMMET*)noeud3->get_lien_topologie(); |
| 769 |
som->get_lien_maillage()->ajouter(noeud3); |
| 770 |
}*/ |
| 771 |
/*if (noeud1->get_lien_topologie()==noeud2->get_lien_topologie()) |
| 772 |
if (noeud1->get_lien_topologie()->get_dimension()==1) |
| 773 |
{ |
| 774 |
MG_ARETE* are=(MG_ARETE*)noeud1->get_lien_topologie(); |
| 775 |
if (aretemaille[are->get_id()]==true) |
| 776 |
{ |
| 777 |
MG_SEGMENT* seg=mai->ajouter_mg_segment(are,noeud1,noeud2,TRIANGULATION); |
| 778 |
are->get_lien_maillage()->ajouter(seg); |
| 779 |
} |
| 780 |
} |
| 781 |
if (noeud1->get_lien_topologie()==noeud3->get_lien_topologie()) |
| 782 |
if (noeud1->get_lien_topologie()->get_dimension()==1) |
| 783 |
{ |
| 784 |
MG_ARETE* are=(MG_ARETE*)noeud1->get_lien_topologie(); |
| 785 |
if (aretemaille[are->get_id()]==true) |
| 786 |
{ |
| 787 |
MG_SEGMENT* seg=mai->ajouter_mg_segment(are,noeud1,noeud3,TRIANGULATION); |
| 788 |
are->get_lien_maillage()->ajouter(seg); |
| 789 |
} |
| 790 |
}#include <../gmsh/tutorial/t8.geo> |
| 791 |
if (noeud3->get_lien_topologie()==noeud2->get_lien_topologie()) |
| 792 |
if (noeud3->get_lien_topologie()->get_dimension()==1) |
| 793 |
{ |
| 794 |
MG_ARETE* are=(MG_ARETE*)noeud3->get_lien_topologie(); |
| 795 |
if (aretemaille[are->get_id()]==true) |
| 796 |
{ |
| 797 |
MG_SEGMENT* seg=mai->ajouter_mg_segment(are,noeud3,noeud2,TRIANGULATION); |
| 798 |
are->get_lien_maillage()->ajouter(seg); |
| 799 |
} |
| 800 |
} |
| 801 |
if (noeud1->get_lien_topologie()->get_dimension()==1) |
| 802 |
if (noeud2->get_lien_topologie()->get_dimension()==0) |
| 803 |
{ |
| 804 |
MG_ARETE* are=(MG_ARETE*)noeud1->get_lien_topologie(); |
| 805 |
MG_SOMMET* som=(MG_SOMMET*)noeud2->get_lien_topologie(); |
| 806 |
if ((are->get_cosommet1()->get_sommet()==som)||(are->get_cosommet2()->get_sommet()==som)) |
| 807 |
{ |
| 808 |
if (aretemaille[are->get_id()]==true) |
| 809 |
{ |
| 810 |
MG_SEGMENT* seg=mai->ajouter_mg_segment(are,noeud1,noeud2,TRIANGULATION); |
| 811 |
are->get_lien_maillage()->ajouter(seg); |
| 812 |
} |
| 813 |
} |
| 814 |
} |
| 815 |
if (noeud1->get_lien_topologie()->get_dimension()==1) |
| 816 |
if (noeud3->get_lien_topologie()->get_dimension()==0) |
| 817 |
{ |
| 818 |
MG_ARETE* are=(MG_ARETE*)noeud1->get_lien_topologie(); |
| 819 |
MG_SOMMET* som=(MG_SOMMET*)noeud3->get_lien_topologie(); |
| 820 |
if ((are->get_cosommet1()->get_sommet()==som)||(are->get_cosommet2()->get_sommet()==som)) |
| 821 |
{ |
| 822 |
if (aretemaille[are->get_id()]==true) |
| 823 |
{ |
| 824 |
MG_SEGMENT* seg=mai->ajouter_mg_segment(are,noeud1,noeud3,TRIANGULATION); |
| 825 |
are->get_lien_maillage()->ajouter(seg); |
| 826 |
} |
| 827 |
} |
| 828 |
} |
| 829 |
if (noeud2->get_lien_topologie()->get_dimension()==1) |
| 830 |
if (noeud1->get_lien_topologie()->get_dimension()==0) |
| 831 |
{ |
| 832 |
MG_ARETE* are=(MG_ARETE*)noeud2->get_lien_topologie(); |
| 833 |
MG_SOMMET* som=(MG_SOMMET*)noeud1->get_lien_topologie(); |
| 834 |
if ((are->get_cosommet1()->get_sommet()==som)||(are->get_cosommet2()->get_sommet()==som)) |
| 835 |
{ |
| 836 |
if (aretemaille[are->get_id()]==true) |
| 837 |
{ |
| 838 |
MG_SEGMENT* seg=mai->ajouter_mg_segment(are,noeud2,noeud1,TRIANGULATION); |
| 839 |
are->get_lien_maillage()->ajouter(seg); |
| 840 |
} |
| 841 |
} |
| 842 |
} |
| 843 |
if (noeud2->get_lien_topologie()->get_dimension()==1) |
| 844 |
if (noeud3->get_lien_topologie()->get_dimension()==0) |
| 845 |
{ |
| 846 |
MG_ARETE* are=(MG_ARETE*)noeud2->get_lien_topologie(); |
| 847 |
MG_SOMMET* som=(MG_SOMMET*)noeud3->get_lien_topologie(); |
| 848 |
if ((are->get_cosommet1()->get_sommet()==som)||(are->get_cosommet2()->get_sommet()==som)) |
| 849 |
{ |
| 850 |
if (aretemaille[are->get_id()]==true) |
| 851 |
{ |
| 852 |
MG_SEGMENT* seg=mai->ajouter_mg_segment(are,noeud2,noeud3,TRIANGULATION); |
| 853 |
are->get_lien_maillage()->ajouter(seg); |
| 854 |
} |
| 855 |
} |
| 856 |
} |
| 857 |
if (noeud3->get_lien_topologie()->get_dimension()==1) |
| 858 |
if (noeud1->get_lien_topologie()->get_dimension()==0) |
| 859 |
{ |
| 860 |
MG_ARETE* are=(MG_ARETE*)noeud3->get_lien_topologie(); |
| 861 |
MG_SOMMET* som=(MG_SOMMET*)noeud1->get_lien_topologie(); |
| 862 |
if ((are->get_cosommet1()->get_sommet()==som)||(are->get_cosommet2()->get_sommet()==som)) |
| 863 |
{ |
| 864 |
if (aretemaille[are->get_id()]==true) |
| 865 |
{ |
| 866 |
MG_SEGMENT* seg=mai->ajouter_mg_segment(are,noeud3,noeud1,TRIANGULATION); |
| 867 |
are->get_lien_maillage()->ajouter(seg); |
| 868 |
} |
| 869 |
} |
| 870 |
} |
| 871 |
if (noeud3->get_lien_topologie()->get_dimension()==1) |
| 872 |
if (noeud2->get_lien_topologie()->get_dimension()==0) |
| 873 |
{ |
| 874 |
MG_ARETE* are=(MG_ARETE*)noeud3->get_lien_topologie(); |
| 875 |
MG_SOMMET* som=(MG_SOMMET*)noeud2->get_lien_topologie(); |
| 876 |
if ((are->get_cosommet1()->get_sommet()==som)||(are->get_cosommet2()->get_sommet()==som)) |
| 877 |
{ |
| 878 |
if (aretemaille[are->get_id()]==true) |
| 879 |
{ |
| 880 |
MG_SEGMENT* seg=mai->ajouter_mg_segment(are,noeud3,noeud2,TRIANGULATION); |
| 881 |
are->get_lien_maillage()->ajouter(seg); |
| 882 |
} |
| 883 |
} |
| 884 |
}*/ |
| 885 |
} |
| 886 |
if (mode>1) |
| 887 |
{ |
| 888 |
TPL_MAP_ENTITE<MG_ARETE*>::ITERATEUR it2; |
| 889 |
for (MG_ARETE* are=listare.get_premier(it2);are!=NULL;are=listare.get_suivant(it2)) |
| 890 |
{ |
| 891 |
if (are->get_lien_maillage()->get_nb()==0) |
| 892 |
{ |
| 893 |
unsigned long id=are->get_id(); |
| 894 |
MG_NOEUD* nodep=(MG_NOEUD*)are->get_cosommet1()->get_sommet()->get_lien_maillage()->get(0); |
| 895 |
MG_NOEUD* noarr=(MG_NOEUD*)are->get_cosommet2()->get_sommet()->get_lien_maillage()->get(0); |
| 896 |
std::map<double,NOEUDARETE,std::less<double> >::iterator it=areteamaille[id].begin(); |
| 897 |
MG_NOEUD* noeudcourant=nodep; |
| 898 |
while (it!=areteamaille[id].end()) |
| 899 |
{ |
| 900 |
MG_NOEUD* noeud=(*it).second.no; |
| 901 |
//MG_SEGMENT* seg=mai->ajouter_mg_segment(are,noeudcourant,noeud,TRIANGULATION); |
| 902 |
MG_SEGMENT* seg=mai->get_mg_segment(noeudcourant->get_id(),noeud->get_id()); |
| 903 |
seg->change_lien_topologie(are); |
| 904 |
noeudcourant=noeud; |
| 905 |
it++; |
| 906 |
} |
| 907 |
//MG_SEGMENT* seg=mai->ajouter_mg_segment(are,noeudcourant,noarr,TRIANGULATION); |
| 908 |
MG_SEGMENT* seg=mai->get_mg_segment(noeudcourant->get_id(),noarr->get_id()); |
| 909 |
seg->change_lien_topologie(are); |
| 910 |
} |
| 911 |
} |
| 912 |
|
| 913 |
} |
| 914 |
} |
| 915 |
|
| 916 |
void OCC_SURFACE::get_liste_pole(std::vector< double> *liste_pole,double eps) |
| 917 |
{ |
| 918 |
//Handle(Geom_Surface) surface=BRep_Tool::Surface(face); |
| 919 |
Handle(Standard_Type) type=surface->DynamicType(); |
| 920 |
//std::cout << surface->DynamicType()->Name() <<std::endl; |
| 921 |
if(type==STANDARD_TYPE(Geom_RectangularTrimmedSurface)) |
| 922 |
{ |
| 923 |
Handle(Geom_RectangularTrimmedSurface) RTSurface = Handle(Geom_RectangularTrimmedSurface)::DownCast(surface); |
| 924 |
Handle(Geom_Surface) basissurface = RTSurface->BasisSurface(); |
| 925 |
Handle(Standard_Type) type_basissurface=basissurface->DynamicType(); |
| 926 |
if(type_basissurface==STANDARD_TYPE(Geom_SphericalSurface)) |
| 927 |
{ |
| 928 |
type=STANDARD_TYPE(Geom_SphericalSurface); |
| 929 |
} |
| 930 |
} |
| 931 |
if(type==STANDARD_TYPE(Geom_SphericalSurface)) |
| 932 |
{ |
| 933 |
BRepClass_FaceClassifier faceclassifier; |
| 934 |
gp_Pnt2d pnt2d_pole_sud(0.0,-M_PI/2.); |
| 935 |
faceclassifier.Perform(face,pnt2d_pole_sud,eps); |
| 936 |
if(faceclassifier.State()==TopAbs_IN || faceclassifier.State()==TopAbs_ON) |
| 937 |
{ |
| 938 |
liste_pole->push_back(0.0); |
| 939 |
liste_pole->push_back(-M_PI/2.); |
| 940 |
} |
| 941 |
gp_Pnt2d pnt2d_pole_nord(0.0,M_PI/2.); |
| 942 |
faceclassifier.Perform(face,pnt2d_pole_nord,eps); |
| 943 |
if(faceclassifier.State()==TopAbs_IN || faceclassifier.State()==TopAbs_ON) |
| 944 |
{ |
| 945 |
liste_pole->push_back(0.0); |
| 946 |
liste_pole->push_back(M_PI/2.); |
| 947 |
} |
| 948 |
} |
| 949 |
if(type==STANDARD_TYPE(Geom_SurfaceOfRevolution)) |
| 950 |
{ |
| 951 |
BRepClass_FaceClassifier faceclassifier; |
| 952 |
gp_Pnt2d pnt2d_pole_sud(0.0,v_min); |
| 953 |
faceclassifier.Perform(face,pnt2d_pole_sud,eps); |
| 954 |
if(faceclassifier.State()==TopAbs_IN || faceclassifier.State()==TopAbs_ON) |
| 955 |
{ |
| 956 |
liste_pole->push_back(0.0); |
| 957 |
liste_pole->push_back(v_min); |
| 958 |
} |
| 959 |
gp_Pnt2d pnt2d_pole_nord(0.0,v_max); |
| 960 |
faceclassifier.Perform(face,pnt2d_pole_nord,eps); |
| 961 |
if(faceclassifier.State()==TopAbs_IN || faceclassifier.State()==TopAbs_ON) |
| 962 |
{ |
| 963 |
liste_pole->push_back(0.0); |
| 964 |
liste_pole->push_back(v_max); |
| 965 |
} |
| 966 |
} |
| 967 |
// if(type==STANDARD_TYPE(Geom_ConicalSurface)) |
| 968 |
// { |
| 969 |
// BRepClass_FaceClassifier faceclassifier; |
| 970 |
// gp_Pnt2d pnt2d_pole(0.0,v_max); |
| 971 |
// faceclassifier.Perform(face,pnt2d_pole,eps); |
| 972 |
// if(faceclassifier.State()==TopAbs_IN || faceclassifier.State()==TopAbs_ON) |
| 973 |
// { |
| 974 |
// liste_pole->push_back(0.0); |
| 975 |
// liste_pole->push_back(v_max); |
| 976 |
// } |
| 977 |
// } |
| 978 |
} |
| 979 |
|
| 980 |
|
| 981 |
void OCC_SURFACE::analyse_bspline(void) |
| 982 |
{ |
| 983 |
Handle(Geom_BSplineSurface) bspline=Handle(Geom_BSplineSurface)::DownCast(surface); |
| 984 |
//point de controle et poids |
| 985 |
bool ferme=true; |
| 986 |
for (int v=1; v<=bspline->NbVPoles(); v++) |
| 987 |
{ |
| 988 |
gp_Pnt pctr1=bspline->Pole(1, v); |
| 989 |
gp_Pnt pctr2=bspline->Pole(bspline->NbUPoles(), v); |
| 990 |
double poids1=bspline->Weight(1, v); |
| 991 |
double poids2=bspline->Weight(bspline->NbUPoles(), v); |
| 992 |
double xyz1[4]; |
| 993 |
double xyz2[4]; |
| 994 |
xyz1[0]=pctr1.X(); |
| 995 |
xyz1[1]=pctr1.Y(); |
| 996 |
xyz1[2]=pctr1.Z(); |
| 997 |
xyz1[3]=poids1; |
| 998 |
xyz2[0]=pctr2.X(); |
| 999 |
xyz2[1]=pctr2.Y(); |
| 1000 |
xyz2[2]=pctr2.Z(); |
| 1001 |
xyz2[3]=poids2; |
| 1002 |
OT_VECTEUR_4D vec(xyz1,xyz2); |
| 1003 |
if (vec.get_longueur()>fonction1->get_precision()) |
| 1004 |
ferme=false; |
| 1005 |
|
| 1006 |
} |
| 1007 |
if (ferme) |
| 1008 |
{ |
| 1009 |
estperiodeu=1; |
| 1010 |
periode_u=u_max-u_min; |
| 1011 |
} |
| 1012 |
ferme=true; |
| 1013 |
for (int u=1; u<=bspline->NbUPoles(); u++) |
| 1014 |
{ |
| 1015 |
gp_Pnt pctr1=bspline->Pole(u,1); |
| 1016 |
gp_Pnt pctr2=bspline->Pole(u,bspline->NbVPoles()); |
| 1017 |
double poids1=bspline->Weight(u,1); |
| 1018 |
double poids2=bspline->Weight(u,bspline->NbVPoles()); |
| 1019 |
double xyz1[4]; |
| 1020 |
double xyz2[4]; |
| 1021 |
xyz1[0]=pctr1.X(); |
| 1022 |
xyz1[1]=pctr1.Y(); |
| 1023 |
xyz1[2]=pctr1.Z(); |
| 1024 |
xyz1[3]=poids1; |
| 1025 |
xyz2[0]=pctr2.X(); |
| 1026 |
xyz2[1]=pctr2.Y(); |
| 1027 |
xyz2[2]=pctr2.Z(); |
| 1028 |
xyz2[3]=poids2; |
| 1029 |
OT_VECTEUR_4D vec(xyz1,xyz2); |
| 1030 |
if (vec.get_longueur()>fonction1->get_precision()) |
| 1031 |
ferme=false; |
| 1032 |
|
| 1033 |
} |
| 1034 |
if (ferme) |
| 1035 |
{ |
| 1036 |
estperiodev=1; |
| 1037 |
periode_v=v_max-v_min; |
| 1038 |
} |
| 1039 |
} |
| 1040 |
|
| 1041 |
void OCC_SURFACE::inverser2(double *uv,double *xyz,double precision) |
| 1042 |
{ |
| 1043 |
int NUMDECOUP=20; |
| 1044 |
double u1; |
| 1045 |
double u2; |
| 1046 |
double v1; |
| 1047 |
double v2; |
| 1048 |
double u,v,distmin=1e300; |
| 1049 |
surface->Bounds(u1,u2,v1, v2); |
| 1050 |
for (int i=0;i<NUMDECOUP+1;i++) |
| 1051 |
for (int j=0;j<NUMDECOUP+1;j++) |
| 1052 |
{ |
| 1053 |
double ut=u1+i*1.0/NUMDECOUP*(u2-u1); |
| 1054 |
double vt=v1+j*1.0/NUMDECOUP*(v2-v1); |
| 1055 |
gp_Pnt P; |
| 1056 |
surface->D0(ut,vt,P); |
| 1057 |
double xyz2[3]={P.X(),P.Y(),P.Z()}; |
| 1058 |
OT_VECTEUR_3D vec(xyz,xyz2); |
| 1059 |
double dist=vec.get_longueur(); |
| 1060 |
if (dist<distmin) |
| 1061 |
{ |
| 1062 |
distmin=dist; |
| 1063 |
u=ut; |
| 1064 |
v=vt; |
| 1065 |
} |
| 1066 |
} |
| 1067 |
bool sortie=false; |
| 1068 |
int nbiteration=0; |
| 1069 |
while (sortie==false) |
| 1070 |
{ |
| 1071 |
double uv2[3]={u,v,0.}; |
| 1072 |
double xyzuv[3],xyzuvdu[3],xyzuvdv[3],xyzuvduu[3],xyzuvduv[3],xyzuvdvv[3]; |
| 1073 |
deriver_seconde(uv2,xyzuvduu,xyzuvduv,xyzuvdvv,xyzuv,xyzuvdu,xyzuvdv); |
| 1074 |
OT_VECTEUR_3D vxyz(xyz); |
| 1075 |
OT_VECTEUR_3D vxyzuv(xyzuv); |
| 1076 |
OT_VECTEUR_3D P=vxyzuv-vxyz; |
| 1077 |
OT_VECTEUR_3D vxyzuvdu(xyzuvdu); |
| 1078 |
OT_VECTEUR_3D vxyzuvdv(xyzuvdv); |
| 1079 |
OT_VECTEUR_3D vxyzuvduu(xyzuvduu); |
| 1080 |
OT_VECTEUR_3D vxyzuvdvv(xyzuvdvv); |
| 1081 |
OT_VECTEUR_3D vxyzuvduv(xyzuvduv); |
| 1082 |
double Fdu=P*vxyzuvduu+vxyzuvdu*vxyzuvdu; |
| 1083 |
double Fdv=P*vxyzuvduv+vxyzuvdv*vxyzuvdu; |
| 1084 |
double Gdu=P*vxyzuvduv+vxyzuvdu*vxyzuvdv; |
| 1085 |
double Gdv=P*vxyzuvdvv+vxyzuvdv*vxyzuvdv; |
| 1086 |
double F=P*xyzuvdu; |
| 1087 |
double G=P*xyzuvdv; |
| 1088 |
double det=Fdu*Gdv-Gdu*Fdv; |
| 1089 |
double deltau=(-F*Gdv+Gdu*G)/det; |
| 1090 |
double deltav=(-Fdu*G+F*Fdv)/det; |
| 1091 |
double new_u=u+deltau; |
| 1092 |
double new_v=v+deltav; |
| 1093 |
if (new_u<u1) new_u=u1; |
| 1094 |
if (new_u>u2) new_u=u2; |
| 1095 |
if (new_v<v1) new_v=v1; |
| 1096 |
if (new_v>v2) new_v=v2; |
| 1097 |
if (fabs(new_u-u)<precision) |
| 1098 |
if (fabs(new_v-v)<precision) |
| 1099 |
sortie=true; |
| 1100 |
u=new_u; |
| 1101 |
v=new_v; |
| 1102 |
nbiteration++; |
| 1103 |
if (nbiteration>1000) sortie=true; |
| 1104 |
} |
| 1105 |
uv[0]=u; |
| 1106 |
uv[1]=v; |
| 1107 |
} |
| 1108 |
|
| 1109 |
#endif |
