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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_triangle21.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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#include "fem_triangle.h"
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#pragma package(smart_init)
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SL_TRIANGLE21::SL_TRIANGLE21(class FEM_TRIANGLE *mgseg):SL_TRIANGLE(mgseg)
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{
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}
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SL_TRIANGLE21::SL_TRIANGLE21(SL_TRIANGLE21& mdd):SL_TRIANGLE(mdd)
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{
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}
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SL_TRIANGLE21::~SL_TRIANGLE21()
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{
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}
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int SL_TRIANGLE21::nb_point_gauss(void)
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{
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return 1;
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}
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int SL_TRIANGLE21::nb_fonction_interpolation(void)
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{
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return 6;
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}
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void SL_TRIANGLE21::get_point_gauss(int num,double *xyz,double& poids)
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{
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xyz[0]=0.33333333333333333333333333333333;
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xyz[1]=0.33333333333333333333333333333333;
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poids=0.5;
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}
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double SL_TRIANGLE21::get_fonction_interpolation(int num,double *uv)
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{
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double val;
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double landa=1-uv[0]-uv[1];
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switch (num)
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{
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case 1:val=-landa*(1-2*landa);break;
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case 2:val=4*uv[0]*landa;break;
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case 3:val=-uv[0]*(1-2*uv[0]);break;
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case 4:val=4*uv[0]*uv[1];break;
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case 5:val=-uv[1]*(1-2*uv[1]);break;
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case 6:val=4*uv[1]*landa;break;
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}
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return val;
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}
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double SL_TRIANGLE21::get_fonction_derive_interpolation(int num,int num_variable,double *uv)
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{
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double val;
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double landa=1-uv[0]-uv[1];
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switch (num)
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{
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case 1:switch (num_variable)
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{
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case 1:val=1-4*landa;break;
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case 2:val=1-4*landa;break;
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} break;
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case 2:switch (num_variable)
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{
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case 1:val=4*(landa-uv[0]);break;
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case 2:val=-4*uv[0];break;
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}break;
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case 3:switch (num_variable)
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{
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case 1:val=-1+4*uv[0];break;
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case 2:val=0.;break;
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}break;
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case 4:switch (num_variable)
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{
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case 1:val=4*uv[1];break;
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case 2:val=4*uv[0];break;
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}break;
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case 5:switch (num_variable)
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{
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case 1:val=0.;break;
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case 2:val=-1+4*uv[1];break;
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}break;
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case 6:switch (num_variable)
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{
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case 1:val=-4*uv[1];break;
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case 2:val=4*(landa-uv[1]);break;
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}break;
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}
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return val;
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}
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double SL_TRIANGLE21::get_jacobien(double* jac,double *uv,int& li,int& col,double unite)
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{
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double xyz[18];
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//this->get_coord(xyz,unite);
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int nb_nd=((FEM_TRIANGLE*) 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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double landa=1-uv[0]-uv[1];
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li=2;col=3;
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jac[0]=xyz[0]*(1-4*landa)+xyz[3]*(4*(landa-uv[0]))+ xyz[6]*(-1+4*uv[0])+ xyz[9]*(4*uv[1])+ xyz[15]*(-4*uv[1]);
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jac[1]=xyz[1]*(1-4*landa)+xyz[4]*(4*(landa-uv[0]))+ xyz[7]*(-1+4*uv[0])+ xyz[10]*(4*uv[1])+xyz[16]*(-4*uv[1]);
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jac[2]=xyz[2]*(1-4*landa)+xyz[5]*(4*(landa-uv[0]))+ xyz[8]*(-1+4*uv[0])+ xyz[11]*(4*uv[1])+xyz[17]*(-4*uv[1]);
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jac[3]=xyz[0]*(1-4*landa)+xyz[3]*(-4*uv[0])+ xyz[9]*(4*uv[0])+ xyz[12]*(-1+4*uv[1])+ xyz[15]*(4*(landa-uv[1]));
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jac[4]=xyz[1]*(1-4*landa)+xyz[4]*(-4*uv[0])+ xyz[10]*(4*uv[0])+ xyz[13]*(-1+4*uv[1])+ xyz[16]*(4*(landa-uv[1]));
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jac[5]=xyz[2]*(1-4*landa)+xyz[5]*(-4*uv[0])+ xyz[11]*(4*uv[0])+ xyz[14]*(-1+4*uv[1])+ xyz[17]*(4*(landa-uv[1]));
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double DEUX_A=sqrt((jac[1]*jac[5]-jac[4]*jac[2])*(jac[1]*jac[5]-jac[4]*jac[2])+(jac[0]*jac[5]-jac[3]*jac[2])*(jac[0]*jac[5]-jac[3]*jac[2])+(jac[0]*jac[4]-jac[3]*jac[1])*(jac[0]*jac[4]-jac[3]*jac[1]));
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return DEUX_A;
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}
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void SL_TRIANGLE21::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_TRIANGLE21::nb_point_extrapolation()
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{
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return 3;
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}
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