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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_triangle11.h"
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//---------------------------------------------------------------------------
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#include "fem_triangle.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_TRIANGLE11::SL_TRIANGLE11(FEM_TRIANGLE *mgseg):SL_TRIANGLE(mgseg)
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{
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}
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SL_TRIANGLE11::SL_TRIANGLE11(SL_TRIANGLE& mdd):SL_TRIANGLE(mdd)
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{
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}
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SL_TRIANGLE11::~SL_TRIANGLE11()
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{
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}
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int SL_TRIANGLE11::nb_point_gauss(void)
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{
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return 1;
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}
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int SL_TRIANGLE11::nb_fonction_interpolation(void)
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{
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return 3;
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}
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void SL_TRIANGLE11::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_TRIANGLE11::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=1-uv[0]-uv[1];break;
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case 2:val=uv[0];break;
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case 3:val=uv[1];break;
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}
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return val;
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}
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double SL_TRIANGLE11::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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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;break;
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case 2:val=-1;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=1;break;
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case 2:val=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=0;break;
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case 2:val=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_TRIANGLE11::get_jacobien(double* jac,double *uv,int& li,int& col,double unite)
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{
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FEM_NOEUD* noeud1=((FEM_TRIANGLE*) mai)->get_fem_noeud(0);
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FEM_NOEUD* noeud2=((FEM_TRIANGLE*) mai)->get_fem_noeud(1);
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FEM_NOEUD* noeud3=((FEM_TRIANGLE*) mai)->get_fem_noeud(2);
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double *xyz1=noeud1->get_coord();
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double *xyz2=noeud2->get_coord();
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double *xyz3=noeud3->get_coord();
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li=2;col=3;
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jac[0]=unite*(xyz2[0]-xyz1[0]);
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jac[1]=unite*(xyz2[1]-xyz1[1]);
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jac[2]=unite*(xyz2[2]-xyz1[2]);
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jac[3]=unite*(xyz3[0]-xyz1[0]);
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jac[4]=unite*(xyz3[1]-xyz1[1]);
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jac[5]=unite*(xyz3[2]-xyz1[2]);
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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_TRIANGLE11::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_TRIANGLE11::nb_point_extrapolation()
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{
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return 3;
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}
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