From 523bf18206f550a315c6c17e5a0a253381b0f8bf Mon Sep 17 00:00:00 2001
From: Samo Penic <samo.penic@fe.uni-lj.si>
Date: Thu, 07 Jun 2012 11:16:16 +0000
Subject: [PATCH] Spherical harmonics. Almost everyhing is done. Missing triangle area calculation when vertex is moved or bond is flipped. Also missing volume calculation on vertex move or bondflip. Calculation of co coefficient is not done completely yet. Problems are in numbering the coefficients. Newly added data structure ts_spharm is referenced from ts_vesicle. Missing function for initialization and freeing the memory of that datastructure -- but that memory is already used by some functions.

---
 src/initial_distribution.c |  144 +++++++++++++++++++++++++----------------------
 1 files changed, 77 insertions(+), 67 deletions(-)

diff --git a/src/initial_distribution.c b/src/initial_distribution.c
index 6a13a23..2444e15 100644
--- a/src/initial_distribution.c
+++ b/src/initial_distribution.c
@@ -14,8 +14,14 @@
     ts_fprintf(stderr,"Starting initial_distribution on vesicle with %u shells!...\n",nshell);
 	ts_bool retval;
     ts_uint no_vertices=5*nshell*nshell+2;
+
+
 	
     ts_vesicle *vesicle=init_vesicle(no_vertices,ncmax1,ncmax2,ncmax3,stepsize);
+
+//TODO: debugging only. Please remove ASAP!
+	vesicle->bending_rigidity=25.0*25.0;
+
     vesicle->nshell=nshell;
     retval = vtx_set_global_values(vesicle);
     retval = pentagonal_dipyramid_vertex_distribution(vesicle->vlist);
@@ -25,8 +31,10 @@
     retval = init_triangles(vesicle);
     retval = init_triangle_neighbours(vesicle);
     retval = init_common_vertex_triangle_neighbours(vesicle);
+    retval = init_normal_vectors(vesicle->tlist);
     retval = mean_curvature_and_energy(vesicle);
  ts_fprintf(stderr,"initial_distribution finished!\n");
+	if(retval);
 	return vesicle;
 } 
 
@@ -62,40 +70,40 @@
 	ts_double dx,dy; // end loop prereq
 
 	/* topmost vertex */
-	vtx[1]->data->x=0.0;
-	vtx[1]->data->y=0.0;
-	vtx[1]->data->z=z0*(ts_double)nshell;
+	vtx[1]->x=0.0;
+	vtx[1]->y=0.0;
+	vtx[1]->z=z0*(ts_double)nshell;
 	
 	/* starting from to in circular order on pentagrams */	
 	for(i=1;i<=nshell;i++){
 		n0=2+5*i*(i-1)/2; //-1 would be for the reason that C index starts from 0 
-		vtx[n0]->data->x=0.0;
-		vtx[n0]->data->y=(ts_double)i*xl0;
-		vtx[n0+i]->data->x=vtx[n0]->data->y*s1;
-		vtx[n0+i]->data->y=vtx[n0]->data->y*c1;
-		vtx[n0+2*i]->data->x=vtx[n0]->data->y*s2;
-		vtx[n0+2*i]->data->y=vtx[n0]->data->y*c2;
-		vtx[n0+3*i]->data->x=-vtx[n0+2*i]->data->x;
-		vtx[n0+3*i]->data->y=vtx[n0+2*i]->data->y;
-		vtx[n0+4*i]->data->x=-vtx[n0+i]->data->x;
-		vtx[n0+4*i]->data->y=vtx[n0+i]->data->y;
+		vtx[n0]->x=0.0;
+		vtx[n0]->y=(ts_double)i*xl0;
+		vtx[n0+i]->x=vtx[n0]->y*s1;
+		vtx[n0+i]->y=vtx[n0]->y*c1;
+		vtx[n0+2*i]->x=vtx[n0]->y*s2;
+		vtx[n0+2*i]->y=vtx[n0]->y*c2;
+		vtx[n0+3*i]->x=-vtx[n0+2*i]->x;
+		vtx[n0+3*i]->y=vtx[n0+2*i]->y;
+		vtx[n0+4*i]->x=-vtx[n0+i]->x;
+		vtx[n0+4*i]->y=vtx[n0+i]->y;
 	}
 
 	/* vertexes on the faces of the dipyramid */
 	for(i=1;i<=nshell;i++){
 		n0=2+5*i*(i-1)/2; // -1 would be because of C!
 		for(j=1;j<=i-1;j++){
-			dx=(vtx[n0]->data->x-vtx[n0+4*i]->data->x)/(ts_double)i;
-			dy=(vtx[n0]->data->y-vtx[n0+4*i]->data->y)/(ts_double)i;
-			vtx[n0+4*i+j]->data->x=(ts_double)j*dx+vtx[n0+4*i]->data->x;
-			vtx[n0+4*i+j]->data->y=(ts_double)j*dy+vtx[n0+4*i]->data->y;
+			dx=(vtx[n0]->x-vtx[n0+4*i]->x)/(ts_double)i;
+			dy=(vtx[n0]->y-vtx[n0+4*i]->y)/(ts_double)i;
+			vtx[n0+4*i+j]->x=(ts_double)j*dx+vtx[n0+4*i]->x;
+			vtx[n0+4*i+j]->y=(ts_double)j*dy+vtx[n0+4*i]->y;
 		}
 		for(k=0;k<=3;k++){ // I would be worried about zero starting of for
-			dx=(vtx[n0+(k+1)*i]->data->x - vtx[n0+k*i]->data->x)/(ts_double) i;
-			dy=(vtx[n0+(k+1)*i]->data->y - vtx[n0+k*i]->data->y)/(ts_double) i;
+			dx=(vtx[n0+(k+1)*i]->x - vtx[n0+k*i]->x)/(ts_double) i;
+			dy=(vtx[n0+(k+1)*i]->y - vtx[n0+k*i]->y)/(ts_double) i;
 			for(j=1; j<=i-1;j++){
-				vtx[n0+k*i+j]->data->x= (ts_double)j*dx+vtx[n0+k*i]->data->x;
-				vtx[n0+k*i+j]->data->y= (ts_double)j*dy+vtx[n0+k*i]->data->y;
+				vtx[n0+k*i+j]->x= (ts_double)j*dx+vtx[n0+k*i]->x;
+				vtx[n0+k*i+j]->y= (ts_double)j*dy+vtx[n0+k*i]->y;
 			} 
 		} 
 	}
@@ -103,15 +111,15 @@
 	for(i=1;i<=nshell;i++){
 		n0= 2+ 5*i*(i-1)/2;
 		for(j=0;j<=5*i-1;j++){
-		vtx[n0+j]->data->z= z0*(ts_double)(nshell-i);   // I would be worried about zero starting of for
+		vtx[n0+j]->z= z0*(ts_double)(nshell-i);   // I would be worried about zero starting of for
 		}
 	}
 
 /* for botom part of dipyramide we calculate the positions of vertices */
 	for(i=2+5*nshell*(nshell+1)/2;i<=vlist->n;i++){
-		vtx[i]->data->x=vtx[vlist->n - i +1]->data->x;
-		vtx[i]->data->y=vtx[vlist->n - i +1]->data->y;
-		vtx[i]->data->z=-vtx[vlist->n - i +1]->data->z;
+		vtx[i]->x=vtx[vlist->n - i +1]->x;
+		vtx[i]->y=vtx[vlist->n - i +1]->y;
+		vtx[i]->z=-vtx[vlist->n - i +1]->z;
 	}
 
 	for(i=1;i<=vlist->n;i++){
@@ -164,15 +172,16 @@
     ts_double direct; // Something, dont know what, but could be normal of some kind
 	for(i=1;i<=vlist->n;i++){
 		k++; // WHY i IS NOT GOOD??
-       	vtx_add_cneighbour(blist,tvtx[k], tvtx[vtx[i]->data->neigh[0]->idx+1]); //always add 1st
+       	vtx_add_cneighbour(blist,tvtx[k], tvtx[vtx[i]->neigh[0]->idx+1]); //always add 1st
        	jjj=1;
        	jj=1;
-       	for(l=2;l<=vtx[i]->data->neigh_no;l++){
-           	for(j=2;j<=vtx[i]->data->neigh_no;j++){
-               	dist2=vtx_distance_sq(vtx[i]->data->neigh[j-1],vtx[i]->data->neigh[jj-1]);
-               	direct=vtx_direct(vtx[i],vtx[i]->data->neigh[j-1],vtx[i]->data->neigh[jj-1]);
+       	for(l=2;l<=vtx[i]->neigh_no;l++){
+           	for(j=2;j<=vtx[i]->neigh_no;j++){
+               	dist2=vtx_distance_sq(vtx[i]->neigh[j-1],vtx[i]->neigh[jj-1]);
+               	direct=vtx_direct(vtx[i],vtx[i]->neigh[j-1],vtx[i]->neigh[jj-1]);
+// TODO: check if fabs can be used with all floating point types!!
                	if( (fabs(dist2-A0*A0)<=eps) && (direct>0.0) && (j!=jjj) ){
-           			vtx_add_cneighbour(blist,tvtx[k],tvtx[vtx[i]->data->neigh[j-1]->idx+1]);
+           			vtx_add_cneighbour(blist,tvtx[k],tvtx[vtx[i]->neigh[j-1]->idx+1]);
            			jjj=jj;
            			jj=j;
            			break;
@@ -204,8 +213,8 @@
 	ts_uint i,j,k;
 	for(i=1;i<=vlist->n;i++){
 		for(j=i+1;j<=vlist->n;j++){
-			for(k=0;k<vtx[i]->data->neigh_no;k++){ // has changed 0 to < instead of 1 and <=
-				if(vtx[i]->data->neigh[k]==vtx[j]){  //if addresses matches it is the same
+			for(k=0;k<vtx[i]->neigh_no;k++){ // has changed 0 to < instead of 1 and <=
+				if(vtx[i]->neigh[k]==vtx[j]){  //if addresses matches it is the same
 					bond_add(blist,vtx[i],vtx[j]);
 					break;
 				}
@@ -230,14 +239,15 @@
 	ts_double eps=0.001; // can we use EPS from math.h?
 	k=0;
 	for(i=1;i<=vesicle->vlist->n;i++){
-		for(j=1;j<=vtx[i]->data->neigh_no;j++){
-			for(jj=1;jj<=vtx[i]->data->neigh_no;jj++){
+		for(j=1;j<=vtx[i]->neigh_no;j++){
+			for(jj=1;jj<=vtx[i]->neigh_no;jj++){
 		//		ts_fprintf(stderr,"%u: (%u,%u) neigh_no=%u ",i,j,jj,vtx[i].neigh_no);
         //      ts_fprintf(stderr,"%e, %e",vtx[i].neigh[j-1]->x,vtx[i].neigh[jj-1]->x);
-				dist=vtx_distance_sq(vtx[i]->data->neigh[j-1],vtx[i]->data->neigh[jj-1]);
-				direct=vtx_direct(vtx[i],vtx[i]->data->neigh[j-1],vtx[i]->data->neigh[jj-1]);				
-				if(fabs(dist-A0*A0)<=eps && direct < 0.0 && vtx[i]->data->neigh[j-1]->idx+1 > i && vtx[i]->data->neigh[jj-1]->idx+1 >i){
-					triangle_add(tlist,vtx[i],vtx[i]->data->neigh[j-1],vtx[i]->data->neigh[jj-1]);
+				dist=vtx_distance_sq(vtx[i]->neigh[j-1],vtx[i]->neigh[jj-1]);
+				direct=vtx_direct(vtx[i],vtx[i]->neigh[j-1],vtx[i]->neigh[jj-1]);				
+// TODO: same as above				
+				if(fabs(dist-A0*A0)<=eps && direct < 0.0 && vtx[i]->neigh[j-1]->idx+1 > i && vtx[i]->neigh[jj-1]->idx+1 >i){
+					triangle_add(tlist,vtx[i],vtx[i]->neigh[j-1],vtx[i]->neigh[jj-1]);
 				}	
 			}	
 		}
@@ -248,11 +258,11 @@
 	for(i=0;i<tlist->n;i++){
         k=0;
 		for(j=0;j<3;j++){
-			if(tlist->tria[i]->data->vertex[j]!=NULL)
+			if(tlist->tria[i]->vertex[j]!=NULL)
             k++;
 		}
             if(k!=3){
-                fatal("Some triangles has less than 3 vertices..",4);
+                fatal("Some triangles have less than 3 vertices..",4);
             }   
 	} 
     if(tlist->n!=2*(vesicle->vlist->n -2)){
@@ -272,14 +282,14 @@
     ts_triangle **tria=tlist->tria -1;
     nobo=0;
     for(i=1;i<=tlist->n;i++){
-        i1=tria[i]->data->vertex[0]; 
-        i2=tria[i]->data->vertex[1]; 
-        i3=tria[i]->data->vertex[2]; 
+        i1=tria[i]->vertex[0]; 
+        i2=tria[i]->vertex[1]; 
+        i3=tria[i]->vertex[2]; 
         for(j=1;j<=tlist->n;j++){
             if(j==i) continue;
-            j1=tria[j]->data->vertex[0]; 
-            j2=tria[j]->data->vertex[1]; 
-            j3=tria[j]->data->vertex[2]; 
+            j1=tria[j]->vertex[0]; 
+            j2=tria[j]->vertex[1]; 
+            j3=tria[j]->vertex[2]; 
             if((i1==j1 && i3==j2) || (i1==j2 && i3==j3) || (i1==j3 && i3==j1)){
                     triangle_add_neighbour(tria[i],tria[j]);
                     nobo++;
@@ -287,14 +297,14 @@
         }
     }
     for(i=1;i<=tlist->n;i++){
-        i1=tria[i]->data->vertex[0]; 
-        i2=tria[i]->data->vertex[1]; 
-        i3=tria[i]->data->vertex[2]; 
+        i1=tria[i]->vertex[0]; 
+        i2=tria[i]->vertex[1]; 
+        i3=tria[i]->vertex[2]; 
         for(j=1;j<=tlist->n;j++){
             if(j==i) continue;
-            j1=tria[j]->data->vertex[0]; 
-            j2=tria[j]->data->vertex[1]; 
-            j3=tria[j]->data->vertex[2]; 
+            j1=tria[j]->vertex[0]; 
+            j2=tria[j]->vertex[1]; 
+            j3=tria[j]->vertex[2]; 
             if((i1==j1 && i2==j3) || (i1==j3 && i2==j2) || (i1==j2 && i2==j1)){
                 triangle_add_neighbour(tria[i],tria[j]);
                 nobo++;
@@ -302,14 +312,14 @@
         }
     }
     for(i=1;i<=tlist->n;i++){
-        i1=tria[i]->data->vertex[0]; 
-        i2=tria[i]->data->vertex[1]; 
-        i3=tria[i]->data->vertex[2]; 
+        i1=tria[i]->vertex[0]; 
+        i2=tria[i]->vertex[1]; 
+        i3=tria[i]->vertex[2]; 
         for(j=1;j<=tlist->n;j++){
             if(j==i) continue;
-            j1=tria[j]->data->vertex[0]; 
-            j2=tria[j]->data->vertex[1]; 
-            j3=tria[j]->data->vertex[2]; 
+            j1=tria[j]->vertex[0]; 
+            j2=tria[j]->vertex[1]; 
+            j3=tria[j]->vertex[2]; 
             if((i2==j1 && i3==j3) || (i2==j3 && i3==j2) || (i2==j2 && i3==j1)){
                 triangle_add_neighbour(tria[i],tria[j]);
                 nobo++;
@@ -332,15 +342,15 @@
     ts_triangle **tria=tlist->tria -1;
 
     for(i=1;i<=vesicle->vlist->n;i++){
-        for(j=1;j<=vtx[i]->data->neigh_no;j++){
-            k1=vtx[i]->data->neigh[j-1];
+        for(j=1;j<=vtx[i]->neigh_no;j++){
+            k1=vtx[i]->neigh[j-1];
             jp=j+1;
-            if(j == vtx[i]->data->neigh_no) jp=1;
-            k2=vtx[i]->data->neigh[jp-1];
+            if(j == vtx[i]->neigh_no) jp=1;
+            k2=vtx[i]->neigh[jp-1];
             for(k=1;k<=tlist->n;k++){		// VERY NON-OPTIMAL!!! too many loops (vlist.n * vtx.neigh * tlist.n )!
-                k3=tria[k]->data->vertex[0];
-                k4=tria[k]->data->vertex[1];
-                k5=tria[k]->data->vertex[2];
+                k3=tria[k]->vertex[0];
+                k4=tria[k]->vertex[1];
+                k5=tria[k]->vertex[2];
 //                ts_fprintf(stderr,"%u %u: k=(%u %u %u)\n",k1,k2,k3,k4,k5);
                 if((vtx[i]==k3 && k1==k4 && k2==k5) ||
                 (vtx[i]==k4 && k1==k5 && k2==k3) ||
@@ -348,7 +358,7 @@
 
 //TODO: probably something wrong with neighbour distribution.
 //                if(vtx[i]==k3 || vtx[i]==k4 || vtx[i]==k5){
-                    if(i==6) ts_fprintf(stdout, "Vtx[%u] > Added to tristar!\n",i);
+    //                    if(i==6) ts_fprintf(stdout, "Vtx[%u] > Added to tristar!\n",i);
                     vertex_add_tristar(vtx[i],tria[k]);
                 }
             }

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