From a61c001cd35ff70a314ef417c4beda9c7e68d3ad Mon Sep 17 00:00:00 2001
From: Samo Penic <samo.penic@gmail.com>
Date: Fri, 13 Jun 2014 19:52:04 +0000
Subject: [PATCH] It works, png is output. The only problem is that some triangles are missing
---
src/constvol.c | 46 +++++++++++++++++++++++++++++-----------------
1 files changed, 29 insertions(+), 17 deletions(-)
diff --git a/src/constvol.c b/src/constvol.c
index be69edf..2a1d40d 100644
--- a/src/constvol.c
+++ b/src/constvol.c
@@ -12,7 +12,7 @@
ts_bool constvolume(ts_vesicle *vesicle, ts_vertex *vtx_avoid, ts_double Vol, ts_double *retEnergy, ts_vertex **vtx_moved_retval, ts_vertex **vtx_backup){
ts_vertex *vtx_moved;
ts_uint vtxind,i,j;
- ts_uint Ntries=3;
+ ts_uint Ntries=100;
ts_vertex *backupvtx;
ts_double Rv, dh, dvol, volFirst, voldiff, oenergy,delta_energy;
backupvtx=(ts_vertex *)calloc(sizeof(ts_vertex),10);
@@ -20,13 +20,22 @@
for(i=0;i<Ntries;i++){
vtxind=rand() % vesicle->vlist->n;
vtx_moved=vesicle->vlist->vtx[vtxind];
- /* chosen vertex must not be a nearest neighbour. TODO: probably must
+ /* chosen vertex must not be a nearest neighbour. WASTODO: probably must.
+ * DONE: solved below, when using different algorithm.
* extend search in case of bondflip */
- if(vtx_moved==vtx_avoid) continue;
+/* if(vtx_moved==vtx_avoid) continue;
for(j=0;j<vtx_moved->neigh_no;j++){
if(vtx_moved->neigh[j]==vtx_avoid) continue;
}
-
+*/
+/* different check of nearest neighbour (and second nearest neighbour) check.
+ * Checking the distance between vertex and vertex to be moved to assure
+ * constant volume. Solves upper todo problem. */
+
+ if(vtx_distance_sq(vtx_moved,vtx_avoid)<16.0*vesicle->dmax){
+ continue;
+ }
+
memcpy((void *)&backupvtx[0],(void *)vtx_moved,sizeof(ts_vertex));
//move vertex in specified direction. first try, test move!
@@ -36,16 +45,16 @@
vtx_moved->y=vtx_moved->y*(1.0-dh/Rv);
vtx_moved->z=vtx_moved->z*(1.0-dh/Rv);
+
+//SKIPPING FIRST CHECK of CONSTRAINTS. This is not a final move.
//check for constraints
- if(constvolConstraintCheck(vesicle, vtx_moved)==TS_FAIL){
+/* if(constvolConstraintCheck(vesicle, vtx_moved)==TS_FAIL){
vtx_moved=memcpy((void *)vtx_moved,(void *)&backupvtx[0],sizeof(ts_vertex));
- continue;
- }
+// continue;
+ break;
+ } */
// All checks OK!
- for(j=0;j<vtx_moved->neigh_no;j++){
- memcpy((void *)&backupvtx[j+1],(void *)vtx_moved->neigh[j],sizeof(ts_vertex));
- }
dvol=0.0;
for(j=0;j<vtx_moved->tristar_no;j++){
dvol-=vtx_moved->tristar[j]->volume;
@@ -86,13 +95,11 @@
vtx_moved->z=vtx_moved->z*(1-dh/Rv);
//check for constraints
if(constvolConstraintCheck(vesicle, vtx_moved)==TS_FAIL){
- for(j=0;j<vtx_moved->neigh_no;j++){
- memcpy((void *)vtx_moved->neigh[j],(void *)&backupvtx[j+1],sizeof(ts_vertex));
- }
vtx_moved=memcpy((void *)vtx_moved,(void *)&backupvtx[0],sizeof(ts_vertex));
//also, restore normals
for(j=0;j<vtx_moved->tristar_no;j++) triangle_normal_vector(vtx_moved->tristar[j]);
- continue;
+// continue;
+ break;
}
dvol=volFirst;
@@ -104,6 +111,10 @@
if(fabs(voldiff)/vesicle->volume < vesicle->tape->constvolprecision){
//calculate energy, return change in energy...
// fprintf(stderr, "Constvol success! %e\n",voldiff);
+ for(j=0;j<vtx_moved->neigh_no;j++){
+ memcpy((void *)&backupvtx[j+1],(void *)vtx_moved->neigh[j],sizeof(ts_vertex));
+ }
+
oenergy=vtx_moved->energy;
energy_vertex(vtx_moved);
delta_energy=vtx_moved->xk*(vtx_moved->energy - oenergy);
@@ -159,10 +170,11 @@
ts_bool constvolumerestore(ts_vertex *vtx_moved,ts_vertex *vtx_backup){
ts_uint j;
memcpy((void *)vtx_moved,(void *)&vtx_backup[0],sizeof(ts_vertex));
- for(j=0;j<vtx_moved->neigh_no;j++){
- memcpy((void *)vtx_moved->neigh[j],(void *)&vtx_backup[j+1],sizeof(ts_vertex));
- }
for(j=0;j<vtx_moved->tristar_no;j++) triangle_normal_vector(vtx_moved->tristar[j]);
+ for(j=0;j<vtx_moved->neigh_no;j++){
+ // memcpy((void *)vtx_moved->neigh[j],(void *)&vtx_backup[j+1],sizeof(ts_vertex));
+ energy_vertex(vtx_moved->neigh[j]);
+ }
free(vtx_backup);
return TS_SUCCESS;
--
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