From b36841fb1903e9945cb4a1dbc4dd7761556e07e2 Mon Sep 17 00:00:00 2001
From: Samo Penic <samo.penic@fe.uni-lj.si>
Date: Mon, 28 Apr 2014 10:40:08 +0000
Subject: [PATCH] Merge branch 'trout-rbc'

---
 src/sh.c |   50 +++++++++++++++++++++++++++++++++++++++++++++++---
 1 files changed, 47 insertions(+), 3 deletions(-)

diff --git a/src/sh.c b/src/sh.c
index baeb8f9..f5c310a 100644
--- a/src/sh.c
+++ b/src/sh.c
@@ -49,6 +49,7 @@
 
 ts_bool sph_free(ts_spharm *sph){
     int i,j;
+    if(sph==NULL) return TS_FAIL;
     for(i=0;i<sph->l;i++){
         if(sph->ulm[i]!=NULL) free(sph->ulm[i]);
         if(sph->sumUlm2[i]!=NULL) free(sph->sumUlm2[i]);
@@ -189,7 +190,7 @@
 		K=-sqrt(1.0/(M_PI))*cos(m*fi);
 	}
 	
-	return K*sqrt((2.0*l+1.0)/2.0*fac1/fac2)*plgndr(l,abs(m),cos(theta));	
+	return K*sqrt((2.0*l+1.0)/2.0*(ts_double)(fac1/fac2))*plgndr(l,abs(m),cos(theta));	
 }
 
 
@@ -200,7 +201,7 @@
 #ifdef TS_DOUBLE_DOUBLE
     coord->e1=sqrt(x*x+y*y+z*z);
     if(z==0) coord->e3=M_PI/2.0;
-    else coord->e3=atan(sqrt(x*x+y*y)/z);
+    else coord->e3=atan2(sqrt(x*x+y*y),z);
     coord->e2=atan2(y,x);
 #endif
 #ifdef TS_DOUBLE_FLOAT
@@ -218,6 +219,23 @@
 
     return TS_SUCCESS;
 }
+
+
+ts_bool sph2cart(ts_coord *coord){
+    coord->coord_type=TS_COORD_CARTESIAN;
+    ts_double x,y,z;
+
+    x=coord->e1*cos(coord->e2)*sin(coord->e3);
+    y=coord->e1*sin(coord->e2)*sin(coord->e3);
+    z=coord->e1*cos(coord->e3);
+
+    coord->e1=x;
+    coord->e2=y;
+    coord->e3=z;
+
+    return TS_SUCCESS;
+}
+
 
 /* Function returns radius of the sphere with the same volume as vesicle (r0) */
 ts_double getR0(ts_vesicle *vesicle){
@@ -343,7 +361,7 @@
     ts_uint i,j,k;
     ts_vertex *cvtx;
     for(i=0;i<vesicle->sphHarmonics->l;i++){
-        for(j=0;j<2*i;j++) vesicle->sphHarmonics->ulm[i][j]=0.0;
+        for(j=0;j<2*i+1;j++) vesicle->sphHarmonics->ulm[i][j]=0.0;
     }
 
 //TODO: call calculateYlmi !!!
@@ -372,9 +390,35 @@
 ts_int i,j;
 for(i=0;i<sph->l;i++){
     for(j=0;j<2*i+1;j++){
+	/* DEBUG fprintf(stderr,"sph->sumUlm2[%d][%d]=%e\n",i,j,sph->ulm[i][j]* sph->ulm[i][j]); */
         sph->sumUlm2[i][j]+=sph->ulm[i][j]* sph->ulm[i][j];
     }
 }
 	sph->N++;
 return TS_SUCCESS;
 }
+
+
+ts_bool saveAvgUlm2(ts_vesicle *vesicle){
+
+	FILE *fh;
+	
+	fh=fopen("sph2out.dat", "w");
+	if(fh==NULL){
+		err("Cannot open file %s for writing");
+		return TS_FAIL;
+	}
+
+	ts_spharm *sph=vesicle->sphHarmonics;
+	ts_int i,j;
+	fprintf(fh,"l,\tm,\tulm^2avg\n");
+	for(i=0;i<sph->l;i++){
+    		for(j=0;j<2*i+1;j++){
+		fprintf(fh,"%d,\t%d,\t%e\n", i, j-i, sph->sumUlm2[i][j]/(ts_double)sph->N);
+
+    		}
+    fprintf(fh,"\n");
+	}
+	fclose(fh);
+	return TS_SUCCESS;
+}

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