| | |
| | | //#include "io.h" |
| | | #include<stdio.h> |
| | | #include "vertexmove.h" |
| | | #include <string.h> |
| | | |
| | | ts_bool single_verticle_timestep(ts_vesicle *vesicle,ts_vertex *vtx,ts_double |
| | | *rn){ |
| | |
| | | ts_double dist; |
| | | ts_bool retval; |
| | | ts_uint cellidx; |
| | | ts_double xold,yold,zold; |
| | | ts_double delta_energy,oenergy; |
| | | ts_vertex *ovtx; |
| | | ts_vertex *tvtx=(ts_vertex *)calloc(1,sizeof(ts_vertex)); |
| | | ts_double costheta,sintheta,phi,r; |
| | | //This will hold all the information of vtx and its neighbours |
| | | ts_vertex backupvtx[20]; |
| | | memcpy((void *)&backupvtx[0],(void *)vtx,sizeof(ts_vertex)); |
| | | |
| | | //randomly we move the temporary vertex |
| | | // tvtx->x=vtx->x+vesicle->stepsize*(2.0*rn[0]-1.0); |
| | | // tvtx->y=vtx->y+vesicle->stepsize*(2.0*rn[1]-1.0); |
| | | // tvtx->z=vtx->z+vesicle->stepsize*(2.0*rn[2]-1.0); |
| | | //Some stupid tests for debugging cell occupation! |
| | | /* cellidx=vertex_self_avoidance(vesicle, vtx); |
| | | if(vesicle->clist->cell[cellidx]==vtx->cell){ |
| | | fprintf(stderr,"Idx match!\n"); |
| | | } else { |
| | | fprintf(stderr,"***** Idx don't match!\n"); |
| | | fatal("ENding.",1); |
| | | } |
| | | */ |
| | | |
| | | //temporarly moving the vertex |
| | | // vtx->x=vtx->x+vesicle->stepsize*(2.0*rn[0]-1.0); |
| | | // vtx->y=vtx->y+vesicle->stepsize*(2.0*rn[1]-1.0); |
| | | // vtx->z=vtx->z+vesicle->stepsize*(2.0*rn[2]-1.0); |
| | | |
| | | //random move in a sphere with radius stepsize: |
| | | r=vesicle->stepsize*rn[0]; |
| | | phi=rn[1]*2*M_PI; |
| | | costheta=2*rn[2]-1; |
| | | sintheta=sqrt(1-pow(costheta,2)); |
| | | tvtx->x=vtx->x+r*sintheta*cos(phi); |
| | | tvtx->y=vtx->y+r*sintheta*sin(phi); |
| | | tvtx->z=vtx->z+r*costheta; |
| | | //check we if some length to neighbours are too much |
| | | vtx->x=vtx->x+r*sintheta*cos(phi); |
| | | vtx->y=vtx->y+r*sintheta*sin(phi); |
| | | vtx->z=vtx->z+r*costheta; |
| | | |
| | | |
| | | //distance with neighbours check |
| | | for(i=0;i<vtx->neigh_no;i++){ |
| | | dist=vtx_distance_sq(tvtx,vtx->neigh[i]); |
| | | dist=vtx_distance_sq(vtx,vtx->neigh[i]); |
| | | if(dist<1.0 || dist>vesicle->dmax) { |
| | | vtx_free(tvtx); |
| | | // fprintf(stderr,"Fail 1, dist=%f, vesicle->dmax=%f\n", dist, vesicle->dmax); |
| | | vtx=memcpy((void *)vtx,(void *)&backupvtx[0],sizeof(ts_vertex)); |
| | | return TS_FAIL; |
| | | } |
| | | } |
| | | //self avoidance check with distant vertices |
| | | cellidx=vertex_self_avoidance(vesicle, tvtx); |
| | | cellidx=vertex_self_avoidance(vesicle, vtx); |
| | | //check occupation number |
| | | retval=cell_occupation_number_and_internal_proximity(vesicle->clist,cellidx,vtx,tvtx); |
| | | retval=cell_occupation_number_and_internal_proximity(vesicle->clist,cellidx,vtx); |
| | | |
| | | if(retval==TS_FAIL){ |
| | | vtx_free(tvtx); |
| | | // fprintf(stderr,"Fail 2\n"); |
| | | vtx=memcpy((void *)vtx,(void *)&backupvtx[0],sizeof(ts_vertex)); |
| | | return TS_FAIL; |
| | | } |
| | | |
| | | //if all the tests are successful, then we update the vertex position |
| | | xold=vtx->x; |
| | | yold=vtx->y; |
| | | zold=vtx->z; |
| | | ovtx=malloc(sizeof(ts_vertex)); |
| | | vtx_copy(ovtx,vtx); |
| | | vtx->x=tvtx->x; |
| | | vtx->y=tvtx->y; |
| | | vtx->z=tvtx->z; |
| | | |
| | | |
| | | //if all the tests are successful, then energy for vtx and neighbours is calculated |
| | | for(i=0;i<vtx->neigh_no;i++){ |
| | | memcpy((void *)&backupvtx[i+1],(void *)vtx->neigh[i],sizeof(ts_vertex)); |
| | | } |
| | | |
| | | |
| | | |
| | | delta_energy=0; |
| | | //update the normals of triangles that share bead i. |
| | | for(i=0;i<vtx->tristar_no;i++) triangle_normal_vector(vtx->tristar[i]); |
| | | //energy and curvature |
| | | oenergy=vtx->energy; |
| | | energy_vertex(vtx); |
| | | delta_energy=vtx->xk*(vtx->energy - ovtx->energy); |
| | | delta_energy=vtx->xk*(vtx->energy - oenergy); |
| | | //the same is done for neighbouring vertices |
| | | for(i=0;i<vtx->neigh_no;i++){ |
| | | oenergy=vtx->neigh[i]->energy; |
| | |
| | | #endif |
| | | { |
| | | //not accepted, reverting changes |
| | | vtx->x=xold; |
| | | vtx->y=yold; |
| | | vtx->z=zold; |
| | | vtx=memcpy((void *)vtx,(void *)&backupvtx[0],sizeof(ts_vertex)); |
| | | for(i=0;i<vtx->neigh_no;i++){ |
| | | vtx->neigh[i]=memcpy((void *)vtx->neigh[i],(void *)&backupvtx[i+1],sizeof(ts_vertex)); |
| | | } |
| | | |
| | | //update the normals of triangles that share bead i. |
| | | for(i=0;i<vtx->tristar_no;i++) triangle_normal_vector(vtx->tristar[i]); |
| | | //energy and curvature |
| | | energy_vertex(vtx); |
| | | //the same is done for neighbouring vertices |
| | | for(i=0;i<vtx->neigh_no;i++) energy_vertex(vtx->neigh[i]); |
| | | free(ovtx->bond_length); |
| | | free(ovtx->bond_length_dual); |
| | | free(ovtx); |
| | | vtx_free(tvtx); |
| | | for(i=0;i<vtx->tristar_no;i++) triangle_normal_vector(vtx->tristar[i]); |
| | | |
| | | return TS_FAIL; |
| | | } |
| | | } |
| | | |
| | | // oldcellidx=vertex_self_avoidance(vesicle, &backupvtx[0]); |
| | | if(vtx->cell!=vesicle->clist->cell[cellidx]){ |
| | | retval=cell_add_vertex(vesicle->clist->cell[cellidx],vtx); |
| | | // if(retval==TS_SUCCESS) cell_remove_vertex(vesicle->clist->cell[oldcellidx],vtx); |
| | | if(retval==TS_SUCCESS) cell_remove_vertex(backupvtx[0].cell,vtx); |
| | | |
| | | } |
| | | // if(oldcellidx); |
| | | //END MONTE CARLOOOOOOO |
| | | |
| | | //TODO: change cell occupation if necessary! |
| | | // fprintf(stderr,"Success!!\n"); |
| | | free(ovtx->bond_length); |
| | | free(ovtx->bond_length_dual); |
| | | free(ovtx); |
| | | vtx_free(tvtx); |
| | | return TS_SUCCESS; |
| | | } |
| | | |