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Mathc initiation/a414

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Installer ce fichier dans votre répertoire de travail.

kg_vfg.h
/* --------------------------------- */
/* save as  kg_vfg.h                 */
/* --------------------------------- */
void G_vfg(
CTRL_splot  w,
  char      feq[],
  char      geq[]
)
{
double z0 = 0.;

FILE   *fp = fopen("a_main.plt","w");
        
fprintf(fp,"reset\n");

fprintf(fp,"set    samples 40\n");
fprintf(fp,"set isosamples 40\n");
fprintf(fp,"set hidden3d\n");

fprintf(fp,"set xlabel \"X axis\"\n");
fprintf(fp,"set ylabel \"Y axis\"\n");
fprintf(fp,"set zlabel \"Z axis\" offset 1, 0\n");

fprintf(fp,"set view %0.3f, %0.3f, %0.3f, %0.3f \n",
                    w.rot_x,w.rot_z,w.scale,w.scale_z);
fprintf(fp,"set xrange [%0.3f:%0.3f]\n",w.xmin,w.xmax);
fprintf(fp,"set yrange [%0.3f:%0.3f]\n",w.ymin,w.ymax);
fprintf(fp,"set zrange [%0.3f:%0.3f]\n",w.zmin,w.zmax);

fprintf(fp,"splot ");
fprintf(fp," \"a_kb\" with linespoints lt 7,\\\n");
fprintf(fp," %s,\\\n",feq);   
fprintf(fp," %s\n\n",geq);                        
 fclose(fp);                 /*  __________  */                                                   
                             /* |          | */     /*  xi ym   xm ym */
 fp = fopen("a_kb","w");     /* |__________| */     /*  xi yi   xm yi */
 
         fprintf(fp," %6.3f   %6.3f   %6.3f\n", 
                      w.xmin, w.ymin, z0);
                      
         fprintf(fp," %6.3f   %6.3f   %6.3f\n", 
                      w.xmax, w.ymin, z0);                      

         fprintf(fp," %6.3f   %6.3f   %6.3f\n", 
                      w.xmax, w.ymax, z0); 
                      
         fprintf(fp," %6.3f   %6.3f   %6.3f\n", 
                      w.xmin, w.ymax, z0);  

         fprintf(fp," %6.3f   %6.3f   %6.3f\n", 
                      w.xmin, w.ymin, z0);  
                                            
         fprintf(fp," %6.3f   %6.3f   %6.3f\n", 
                      w.xmax, w.ymax,  z0);    

         fprintf(fp," %6.3f   %6.3f   %6.3f\n", 
                      w.xmin, w.ymax, z0);  
                                            
         fprintf(fp," %6.3f   %6.3f   %6.3f\n", 
                      w.xmax, w.ymin, z0);                       

 fclose(fp);
 
 printf(" ... load \"a_main.plt\" ... with gnuplot.\n\n");
}
/* --------------------------------- */
/* --------------------------------- */


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