1 // Created by: Julia GERASIMOVA
2 // Copyright (c) 2015 OPEN CASCADE SAS
4 // This file is part of Open CASCADE Technology software library.
6 // This library is free software; you can redistribute it and/or modify it under
7 // the terms of the GNU Lesser General Public License version 2.1 as published
8 // by the Free Software Foundation, with special exception defined in the file
9 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
10 // distribution for complete text of the license and disclaimer of any warranty.
12 // Alternatively, this file may be used under the terms of Open CASCADE
13 // commercial license or contractual agreement.
16 #include <Adaptor2d_HCurve2d.hxx>
17 #include <Adaptor3d_HCurve.hxx>
18 #include <Adaptor3d_HSurface.hxx>
19 #include <BlendFunc.hxx>
20 #include <BlendFunc_ConstThroatInv.hxx>
21 #include <math_Matrix.hxx>
22 #include <Precision.hxx>
24 //=======================================================================
25 //function : BlendFunc_ConstThroatInv
27 //=======================================================================
29 BlendFunc_ConstThroatInv::BlendFunc_ConstThroatInv(const Handle(Adaptor3d_HSurface)& S1,
30 const Handle(Adaptor3d_HSurface)& S2,
31 const Handle(Adaptor3d_HCurve)& C)
32 : BlendFunc_GenChamfInv(S1,S2,C)
37 //=======================================================================
40 //=======================================================================
42 void BlendFunc_ConstThroatInv::Set(const Standard_Real theThroat,
44 const Standard_Integer Choix)
46 //Standard_Real dis1,dis2;
86 //=======================================================================
87 //function : IsSolution
89 //=======================================================================
91 Standard_Boolean BlendFunc_ConstThroatInv::IsSolution(const math_Vector& Sol, const Standard_Real Tol)
93 math_Vector valsol(1,4);
96 if (Abs(valsol(1)) <= Tol &&
97 Abs(valsol(2)) <= Tol &&
98 Abs(valsol(3)) <= Tol*Tol &&
99 Abs(valsol(4)) <= Tol*Tol)
100 return Standard_True;
102 return Standard_False;
105 //=======================================================================
108 //=======================================================================
110 Standard_Boolean BlendFunc_ConstThroatInv::Value(const math_Vector& X, math_Vector& F)
114 csurf->D1(X(1),p2d,v2d);
116 curv->D2(param,ptgui,d1gui,d2gui);
117 normtg = d1gui.Magnitude();
118 nplan = d1gui.Normalized();
119 theD = - (nplan.XYZ().Dot(ptgui.XYZ()));
124 XX(1) = p2d.X(); XX(2) = p2d.Y();
125 XX(3) = X(3); XX(4) = X(4);
129 XX(1) = X(3); XX(2) = X(4);
130 XX(3) = p2d.X(); XX(4) = p2d.Y();
133 surf1->D0( XX(1), XX(2), pts1 );
134 surf2->D0( XX(3), XX(4), pts2 );
136 F(1) = nplan.XYZ().Dot(pts1.XYZ()) + theD;
137 F(2) = nplan.XYZ().Dot(pts2.XYZ()) + theD;
139 const gp_Pnt ptmid((pts1.XYZ() + pts2.XYZ())/2);
140 const gp_Vec vmid(ptgui, ptmid);
142 F(3) = vmid.SquareMagnitude() - Throat*Throat;
144 const gp_Vec vref1(ptgui, pts1);
145 const gp_Vec vref2(ptgui, pts2);
147 F(4) = vref1.SquareMagnitude() - vref2.SquareMagnitude();
149 return Standard_True;
152 //=======================================================================
153 //function : Derivatives
155 //=======================================================================
157 Standard_Boolean BlendFunc_ConstThroatInv::Derivatives(const math_Vector& X, math_Matrix& D)
159 //Standard_Integer i, j;
161 gp_Vec2d v2d; //, df1, df2;
163 gp_Vec dnplan, temp, temp1, temp2, tempmid; //, d1u, d1v, nplan;
164 math_Vector XX(1,4); //x1(1,2), x2(1,2);
165 //math_Matrix d1(1,2,1,2), d2(1,2,1,2);
167 csurf->D1(X(1), p2d, v2d);
168 //corde1.SetParam(X(2));
169 //corde2.SetParam(X(2));
171 curv->D2(param,ptgui,d1gui,d2gui);
172 normtg = d1gui.Magnitude();
173 nplan = d1gui.Normalized();
174 theD = - (nplan.XYZ().Dot(ptgui.XYZ()));
176 dnplan.SetLinearForm(1./normtg,d2gui,
177 -1./normtg*(nplan.Dot(d2gui)),nplan);
179 temp1.SetXYZ(pts1.XYZ() - ptgui.XYZ());
180 temp2.SetXYZ(pts2.XYZ() - ptgui.XYZ());
181 tempmid.SetXYZ((pts1.XYZ() + pts2.XYZ())/2 - ptgui.XYZ());
183 //x1(1) = p2d.X(); x1(2) = p2d.Y();
184 //x2(1) = X(3); x2(2) = X(4);
187 XX(1) = p2d.X(); XX(2) = p2d.Y();
188 XX(3) = X(3); XX(4) = X(4);
192 XX(1) = X(3); XX(2) = X(4);
193 XX(3) = p2d.X(); XX(4) = p2d.Y();
196 surf1->D1(XX(1), XX(2), pts1, d1u1, d1v1);
197 surf2->D1(XX(3), XX(4), pts2, d1u2, d1v2);
200 // p2d = pts est sur surf1
201 //ptgui = corde1.PointOnGuide();
202 //nplan = corde1.NPlan();
203 temp.SetLinearForm(v2d.X(),d1u1, v2d.Y(),d1v1);
205 D(1,1) = nplan.Dot(temp);
207 D(3,1) = gp_Vec(ptgui,pts1).Dot(temp);
208 D(4,1) = 2*(gp_Vec(ptgui,pts1).Dot(temp));
212 D(2,3) = nplan.Dot(d1u2);
213 D(2,4) = nplan.Dot(d1v2);
214 D(3,3) = gp_Vec((pts1.XYZ() + pts2.XYZ())/2 - ptgui.XYZ()).Dot(d1u2);
215 D(3,4) = gp_Vec((pts1.XYZ() + pts2.XYZ())/2 - ptgui.XYZ()).Dot(d1v2);
216 D(4,3) = -2.*gp_Vec(ptgui,pts2).Dot(d1u2);
217 D(4,4) = -2.*gp_Vec(ptgui,pts2).Dot(d1v2);
219 //surf1->D1(x1(1),x1(2),pts,d1u,d1v);
222 // p2d = pts est sur surf2
223 //ptgui = corde2.PointOnGuide();
224 //nplan = corde2.NPlan();
225 temp.SetLinearForm(v2d.X(),d1u2, v2d.Y(),d1v2);
228 D(2,1) = nplan.Dot(temp);
229 D(3,1) = gp_Vec(ptgui,pts2).Dot(temp);
230 D(4,1) = -2*(gp_Vec(ptgui,pts2).Dot(temp));
232 D(1,3) = nplan.Dot(d1u1);
233 D(1,4) = nplan.Dot(d1v1);
236 D(3,3) = gp_Vec((pts1.XYZ() + pts2.XYZ())/2 - ptgui.XYZ()).Dot(d1u1);
237 D(3,4) = gp_Vec((pts1.XYZ() + pts2.XYZ())/2 - ptgui.XYZ()).Dot(d1v1);
238 D(4,3) = 2.*gp_Vec(ptgui,pts1).Dot(d1u1);
239 D(4,4) = 2.*gp_Vec(ptgui,pts1).Dot(d1v1);
241 //surf2->D1(x1(1),x1(2),pts,d1u,d1v);
244 D(1,2) = dnplan.Dot(temp1) - nplan.Dot(d1gui);
245 D(2,2) = dnplan.Dot(temp2) - nplan.Dot(d1gui);
246 D(3,2) = -2.*d1gui.Dot(tempmid);
247 D(4,2) = 2.*d1gui.Dot(temp1) - 2.*d1gui.Dot(temp2);
249 return Standard_True;