From 19c1fd84d1fd75e9bfd55feb670fda87a2e02086 Mon Sep 17 00:00:00 2001
From: Samo Penic <samo.penic@gmail.com>
Date: Fri, 08 Feb 2019 08:32:29 +0000
Subject: [PATCH] Merge branch 'master' of ssh://git.penic.eu:29418/trisurf-ng

---
 src/timestep.c |   50 ++++++++++++++++++++++++++++++++++++++++----------
 1 files changed, 40 insertions(+), 10 deletions(-)

diff --git a/src/timestep.c b/src/timestep.c
index f7cb5dd..6430597 100644
--- a/src/timestep.c
+++ b/src/timestep.c
@@ -24,6 +24,7 @@
 	ts_double r0,kc1=0,kc2=0,kc3=0,kc4=0;
 	ts_double l1,l2,l3,vmsr,bfsr, vmsrt, bfsrt;
 	ts_ulong epochtime;
+	ts_double max_z,min_z;
 	FILE *fd1,*fd2=NULL,*fd3=NULL;
  	char filename[10000];
 	//struct stat st;
@@ -49,12 +50,11 @@
 		fd2=fopen(filename,"w");
 	else
 		fd2=fopen(filename,"a");
-		if(fd2==NULL){
-			fatal("Cannot open ulm2.csv file for writing",1);
-		}
-		if(start_iteration==0) //file does not exist
-			fprintf(fd2, "Timestep u_00^2 u_10^2 u_11^2 u_20^2 ...\n");	
-
+	if(fd2==NULL){
+		fatal("Cannot open ulm2.csv file for writing",1);
+	}
+	if(start_iteration==0) //file does not exist
+		fprintf(fd2, "Timestep u_00^2 u_10^2 u_11^2 u_20^2 ...\n");	
 	}
 
 /* RANDOM SEED SET BY CURRENT TIME */
@@ -63,20 +63,50 @@
 	centermass(vesicle);
 	cell_occupation(vesicle);
 	vesicle_volume(vesicle); //needed for constant volume at this moment
-    vesicle_area(vesicle); //needed for constant area at this moment
+	vesicle_area(vesicle); //needed for constant area at this moment
 	if(V0<0.000001) 
 		V0=vesicle->volume; 
 	ts_fprintf(stdout,"Setting volume V0=%.17f\n",V0);
 	if(A0<0.000001)
 		A0=vesicle->area;
-		ts_fprintf(stdout,"Setting area A0=%.17f\n",A0);
+	ts_fprintf(stdout,"Setting area A0=%.17f\n",A0);
 	epsvol=4.0*sqrt(2.0*M_PI)/pow(3.0,3.0/4.0)*V0/pow(vesicle->tlist->n,3.0/2.0);
-    epsarea=A0/(ts_double)vesicle->tlist->n;
-  //  fprintf(stderr, "DVol=%1.16f (%1.16f), V0=%1.16f\n", epsvol,0.003e-2*V0,V0);
+	epsarea=A0/(ts_double)vesicle->tlist->n;
+
 	if(start_iteration<inititer) ts_fprintf(stdout, "Starting simulation (first %d x %d MC sweeps will not be recorded on disk)\n", inititer, mcsweeps);
 	for(i=start_iteration;i<inititer+iterations;i++){
 		vmsr=0.0;
 		bfsr=0.0;
+
+	//plane confinement
+	if(vesicle->tape->plane_confinement_switch){
+		min_z=1e10;
+		max_z=-1e10;
+		for(k=0;k<vesicle->vlist->n;k++){
+			if(vesicle->vlist->vtx[k]->z > max_z) max_z=vesicle->vlist->vtx[k]->z;
+			if(vesicle->vlist->vtx[k]->z < min_z) min_z=vesicle->vlist->vtx[k]->z;
+		}
+		vesicle->confinement_plane.force_switch=0;
+		if(max_z>=vesicle->tape->plane_d/2.0){
+			ts_fprintf(stdout, "Max vertex out of bounds (z>=%e). Plane set to max_z = %e.\n",vesicle->tape->plane_d/2.0,max_z);
+			vesicle->confinement_plane.z_max = max_z;
+			vesicle->confinement_plane.force_switch=1;
+		} else {
+			vesicle->confinement_plane.z_max=vesicle->tape->plane_d/2.0;
+		}
+		if(min_z<=-vesicle->tape->plane_d/2.0){
+			ts_fprintf(stdout, "Min vertex out of bounds (z<=%e). Plane set to min_z = %e.\n",-vesicle->tape->plane_d/2.0,min_z);
+			vesicle->confinement_plane.z_min = min_z;
+			vesicle->confinement_plane.force_switch=1;
+		} else {
+			vesicle->confinement_plane.z_min=-vesicle->tape->plane_d/2.0;
+		}
+		ts_fprintf(stdout,"Vesicle confinement by plane set to (zmin, zmax)=(%e,%e).\n",vesicle->confinement_plane.z_min,vesicle->confinement_plane.z_max);
+		if(vesicle->confinement_plane.force_switch) ts_fprintf(stdout,"Squeezing with force %e.\n",vesicle->tape->plane_F);
+	}
+
+	//end plane confinement
+
 /*    vesicle_volume(vesicle);
     fprintf(stderr,"Volume before TS=%1.16e\n", vesicle->volume); */
 		for(j=0;j<mcsweeps;j++){

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