Fixes error occuring when statistics.csv is empty.

Samo Penic

2016-05-17 d665c0b94c289f6c34597af3010d6b9b38a08ac4

 src/initial_distribution.c

@@ -1,3 +1,4 @@
/* vim: set ts=4 sts=4 sw=4 noet : */
#include<stdlib.h>
#include<math.h>
#include<stdio.h>
@@ -11,6 +12,8 @@
#include "energy.h"
#include "poly.h"
#include "io.h"
#include "sh.h"
#include "shcomplex.h"

ts_vesicle *initial_distribution_dipyramid(ts_uint nshell, ts_uint ncmax1, ts_uint ncmax2, ts_uint ncmax3, ts_double stepsize){
   ts_fprintf(stdout,"Starting initial_distribution on vesicle with %u shells!...\n",nshell);
@@ -37,10 +40,54 @@

ts_vesicle *create_vesicle_from_tape(ts_tape *tape){
   ts_vesicle *vesicle;

   vesicle=initial_distribution_dipyramid(tape->nshell,tape->ncxmax,tape->ncymax,tape->nczmax,tape->stepsize);
       vesicle->tape=tape;
   set_vesicle_values_from_tape(vesicle);
   return vesicle;
}

ts_bool set_vesicle_values_from_tape(ts_vesicle *vesicle){
   // Nucleus:
   ts_vertex *vtx;
   ts_tape *tape=vesicle->tape;
   vesicle->R_nucleus=tape->R_nucleus*tape->R_nucleus;

   vesicle->clist->dmin_interspecies = tape->dmin_interspecies*tape->dmin_interspecies;

   //Initialize grafted polymers (brush):
   vesicle->poly_list=init_poly_list(tape->npoly,tape->nmono, vesicle->vlist, vesicle);
   vesicle->spring_constant=tape->kspring;
   poly_assign_spring_const(vesicle);

   //Initialize filaments (polymers inside the vesicle):
   vesicle->filament_list=init_poly_list(tape->nfil,tape->nfono, NULL, vesicle);
   poly_assign_filament_xi(vesicle,tape);

   ts_uint i,j;
   for(i=0;i<vesicle->filament_list->n;i++){
      for(j=0;j<vesicle->filament_list->poly[i]->blist->n;j++){
         bond_vector(vesicle->filament_list->poly[i]->blist->bond[j]);
         vesicle->filament_list->poly[i]->blist->bond[j]->bond_length = sqrt(vtx_distance_sq(vesicle->filament_list->poly[i]->blist->bond[j]->vtx1,vesicle->filament_list->poly[i]->blist->bond[j]->vtx2));
      }
   }

   for(i=0;i<vesicle->filament_list->n;i++){
      for(j=0;j<vesicle->filament_list->poly[i]->vlist->n;j++){
         vtx = vesicle->filament_list->poly[i]->vlist->vtx[j];
         if(vtx->bond_no == 2){
         vtx->energy = -(vtx->bond[0]->x*vtx->bond[1]->x + vtx->bond[0]->y*vtx->bond[1]->y + vtx->bond[0]->z*vtx->bond[1]->z)/vtx->bond[0]->bond_length/vtx->bond[1]->bond_length;
         }
      }
   }

   for(i=0;i<vesicle->filament_list->n;i++){
      vertex_list_assign_id(vesicle->filament_list->poly[i]->vlist,TS_ID_FILAMENT);
   }

//   vesicle->spring_constant=tape->kspring;
//   poly_assign_spring_const(vesicle);

   
   vesicle->nshell=tape->nshell;
   vesicle->dmax=tape->dmax*tape->dmax; /* dmax^2 in the vesicle dmax variable */
@@ -55,8 +102,13 @@

   vesicle->pressure= tape->pressure;
   vesicle->pswitch=tape->pswitch;

    return vesicle;
    if(tape->shc>0){
       vesicle->sphHarmonics=complex_sph_init(vesicle->vlist,tape->shc);
    }
    else {
        vesicle->sphHarmonics=NULL;
    }
    return TS_SUCCESS;

}