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souaissa |
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#include "gestionversion.h"
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//---------------------------------------------------------------------------
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#pragma hdrstop
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#include "vct_courbe.h"
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#include "mg_courbe.h"
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#include "mg_arete.h"
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#include <iomanip.h>
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//---------------------------------------------------------------------------
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#pragma package(smart_init)
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VCT_COURBE::VCT_COURBE(MG_COURBE* elemgeo):VCT_ELEMENT_GEOMETRIQUE(elemgeo)
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{
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elem_geo->get_param_NURBS(indx_premier_ptctr,nurbs_params);
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nb_points=1/4.*(nurbs_params.get_nb()-indx_premier_ptctr);
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}
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VCT_COURBE::VCT_COURBE(VCT_COURBE& mdd):VCT_ELEMENT_GEOMETRIQUE(mdd.elem_geo)
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{
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mdd.elem_geo->get_param_NURBS(indx_premier_ptctr,nurbs_params);
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nb_points=1/4.*(nurbs_params.get_nb()-indx_premier_ptctr);
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}
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VCT_COURBE::~VCT_COURBE()
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{
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}
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void VCT_COURBE::get_vectorisation(vector<double2>& vct_lst)
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{
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double2 ZERO=0.;
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TPL_LISTE_ENTITE<double> paramm_courb;
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int nb_u=nurbs_params.get(3);
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double2 X1,Y1,Z1,w1,X2,Y2,Z2,w2,vx,vy,vz,w;
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for(int s=0;s<nb_u-1;s++)
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{
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X1=nurbs_params.get(indx_premier_ptctr+ 4 * s);
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Y1=nurbs_params.get(indx_premier_ptctr+ 4 * s + 1);
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Z1=nurbs_params.get(indx_premier_ptctr+ 4 * s + 2);
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w1=nurbs_params.get(indx_premier_ptctr+ 4 * s + 3);
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X2=nurbs_params.get(indx_premier_ptctr+ 4 * (s + 1));
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Y2=nurbs_params.get(indx_premier_ptctr+ 4 * (s + 1) + 1);
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Z2=nurbs_params.get(indx_premier_ptctr+ 4 * (s + 1) + 2);
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w2=nurbs_params.get(indx_premier_ptctr+ 4 * (s + 1) + 3);
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vx=X2-X1;
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vy=Y2-Y1;
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vz=Z2-Z1;
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w=w2-w1;
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double2 norm_au_carre=vx*vx+vy*vy+vz*vz+w*w;
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double2 norm=norm_au_carre^0.5;
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souaissa |
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souaissa |
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if(norm!=ZERO){
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vx=vx/norm;
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vy=vy/norm;
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vz=vz/norm;
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w=w/norm;
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double2 eps=1e-6;
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if(fabs(vx)<eps) vx=0;
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if(fabs(vy)<eps) vy=0;
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if(fabs(vz)<eps) vz=0;
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if(fabs(w)<eps) w=0;
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vct_lst.insert(vct_lst.end(),vx);
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vct_lst.insert(vct_lst.end(),vy);
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vct_lst.insert(vct_lst.end(),vz);
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vct_lst.insert(vct_lst.end(),w);
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}
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}
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}
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int VCT_COURBE::get_nb_points()
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{
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return nb_points;
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}
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void VCT_COURBE::get_geo_barycentre(double2* xyz)
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{
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xyz[0]=0.;
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xyz[1]=0.;
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xyz[2]=0.;
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xyz[3]=0.;
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for(int i=0;i<nb_points;i++)
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{
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xyz[0]=xyz[0]+nurbs_params.get(4*i+indx_premier_ptctr);
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xyz[1]=xyz[1]+nurbs_params.get(4*i+indx_premier_ptctr+1);
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xyz[2]=xyz[2]+nurbs_params.get(4*i+indx_premier_ptctr+2);
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xyz[3]=xyz[3]+nurbs_params.get(4*i+indx_premier_ptctr+3);
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}
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xyz[0]=(1./nb_points)*xyz[0];
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xyz[1]=(1./nb_points)*xyz[1];
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xyz[2]=(1./nb_points)*xyz[2];
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xyz[3]=(1./nb_points)*xyz[3];
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}
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double2 VCT_COURBE::get_inertie_au_centre_de_masse()
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{
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double2 xyz_g[4];
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double2 xyzi[4];
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this->get_geo_barycentre(xyz_g);
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xyzi[0]=0.;
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xyzi[1]=0.;
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xyzi[2]=0.;
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xyzi[3]=0.;
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double2 moment_inertie=0.;
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for(int i=0;i<nb_points;i++)
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{
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xyzi[0]=xyz_g[0]-nurbs_params.get(4*i+indx_premier_ptctr);
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xyzi[1]=xyz_g[1]-nurbs_params.get(4*i+indx_premier_ptctr+1);
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xyzi[2]=xyz_g[2]-nurbs_params.get(4*i+indx_premier_ptctr+2);
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xyzi[3]=xyz_g[3]-nurbs_params.get(4*i+indx_premier_ptctr+3);
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moment_inertie=moment_inertie+xyzi[0]*xyzi[0]+xyzi[1]*xyzi[1]+xyzi[2]*xyzi[2]+xyzi[3]*xyzi[3];
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}
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return moment_inertie;
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}
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void VCT_COURBE::enregistrer(std::ostream& o)
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{
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int compt=0;
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for(int i=indx_premier_ptctr;i<nurbs_params.get_nb();i++)
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{
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o<<setw(15)<<nurbs_params.get(i);
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compt++;
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if(compt==4) {
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o<<endl;
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compt=0;}
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}
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}
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