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#include "gestionversion.h"
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//---------------------------------------------------------------------------
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#pragma hdrstop
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#include <math.h>
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#include "sl_segment21.h"
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#include "fem_segment.h"
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#include "fem_noeud.h"
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//---------------------------------------------------------------------------
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#pragma package(smart_init)
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SL_SEGMENT21::SL_SEGMENT21(class FEM_SEGMENT *mgseg):SL_SEGMENT(mgseg)
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{
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}
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SL_SEGMENT21::SL_SEGMENT21(SL_SEGMENT21& mdd):SL_SEGMENT(mdd)
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{
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}
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SL_SEGMENT21::~SL_SEGMENT21()
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{
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}
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int SL_SEGMENT21::nb_point_gauss(void)
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{
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return 1;
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}
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int SL_SEGMENT21::nb_fonction_interpolation(void)
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{
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return 3;
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}
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void SL_SEGMENT21::get_point_gauss(int num,double *xyz,double& poids)
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{
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xyz[0]=0.;
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poids=2.;
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}
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double SL_SEGMENT21::get_fonction_interpolation(int num,double *uv)
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{
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double val;
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switch (num)
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{
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case 1:val=0.5*uv[0]*(1-uv[0]);break;
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case 2:val=(1-uv[0]*uv[0]);break;
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case 3:val=0.5*uv[0]*(1+uv[0]);break;
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}
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return val;
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}
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double SL_SEGMENT21::get_fonction_derive_interpolation(int num,int numvariable,double *uv)
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{
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double val;
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switch (num)
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{
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case 1:val=0.5*(-1+2*uv[0]);break;
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case 2:val=-2*uv[0];break;
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case 3:val=0.5*(1+2*uv[0]);break;
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}
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return val;
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}
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double SL_SEGMENT21::get_jacobien(double* jac,double *uv,int& li,int& col,double unite)
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{
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double xyz[9];
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int nb_nd=((FEM_SEGMENT*) mai)->get_nb_fem_noeud();
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for(int i=0;i<nb_nd;i++)
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{
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FEM_NOEUD* fmnd=((FEM_SEGMENT*) mai)->get_fem_noeud(i);
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double *xyz1=fmnd->get_coord();
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xyz[3*i]= unite*xyz1[0];
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xyz[3*i+1]=unite*xyz1[1];
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xyz[3*i+2]=unite*xyz1[2];
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}
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li=1;col=3;
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jac[0]=0.5*(-1+2*uv[0])*xyz[0]-2*uv[0]*xyz[3]+0.5*(1+2*uv[0])*xyz[6];
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jac[1]=0.5*(-1+2*uv[0])*xyz[1]-2*uv[0]*xyz[4]+0.5*(1+2*uv[0])*xyz[7];
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jac[2]=0.5*(-1+2*uv[0])*xyz[2]-2*uv[0]*xyz[5]+0.5*(1+2*uv[0])*xyz[8];
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double L= 2* sqrt(jac[0]*jac[0]+jac[1]*jac[1]+jac[2]*jac[2]);
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return L;
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}
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void SL_SEGMENT21::get_inverse_jacob(double* jac,double*j,double unite)
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{
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return;
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}
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int SL_SEGMENT21::nb_point_extrapolation()
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{
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return 2;
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}
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