From 720bd4fb98f2537dcca54f538dd85f63f8320c10 Mon Sep 17 00:00:00 2001
From: Samo Penic <samo.penic@gmail.com>
Date: Wed, 02 Mar 2016 15:46:38 +0000
Subject: [PATCH] Updated README

---
 src/io.c |  374 ++++++++++++++++++++++++++++++++++++++++++++--------
 1 files changed, 313 insertions(+), 61 deletions(-)

diff --git a/src/io.c b/src/io.c
index 9e23560..8e97a8f 100644
--- a/src/io.c
+++ b/src/io.c
@@ -1,7 +1,6 @@
 #include "general.h"
 #include<stdio.h>
 #include "io.h"
-#include <confuse.h>
 #include "vertex.h"
 #include "bond.h"
 #include<string.h>
@@ -10,22 +9,23 @@
 #include <dirent.h>
 #include "initial_distribution.h"
 #include "poly.h"
-
+#include "cell.h"
 #include <getopt.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <dirent.h>
 #include <errno.h>
+#include <snapshot.h>
 /** DUMP STATE TO DISK DRIVE **/
 
 ts_bool dump_state(ts_vesicle *vesicle, ts_uint iteration){
 
     /* save current state with wrong pointers. Will fix that later */
     ts_uint i,j,k;
-    FILE *fh=fopen("dump.bin","wb");
+    FILE *fh=fopen(command_line_args.dump_fullfilename,"wb");
 
     /* dump vesicle */
-    fwrite(vesicle, sizeof(ts_vesicle),1,fh);
+    fwrite(vesicle, sizeof(ts_vesicle)-sizeof(ts_double),1,fh);
     /* dump vertex list */
     fwrite(vesicle->vlist, sizeof(ts_vertex_list),1,fh);
     /* dump bond list */
@@ -36,6 +36,8 @@
     fwrite(vesicle->clist, sizeof(ts_cell_list),1,fh);
     /* dump poly list */
     fwrite(vesicle->poly_list, sizeof(ts_poly_list),1,fh);
+    /* dump filament list */
+    fwrite(vesicle->filament_list, sizeof(ts_poly_list),1,fh);
     /* level 1 complete */
 
     /*dump vertices*/
@@ -118,6 +120,43 @@
         }
     }
 
+
+  /*dump filamentes grandes svinjas */
+    for(i=0;i<vesicle->filament_list->n;i++){
+        fwrite(vesicle->filament_list->poly[i],sizeof(ts_poly),1,fh);
+        fwrite(vesicle->filament_list->poly[i]->vlist,sizeof(ts_vertex_list),1,fh);
+        fwrite(vesicle->filament_list->poly[i]->blist,sizeof(ts_bond_list),1,fh);
+    } 
+     
+    /* dump filamentes vertex(monomer) list*/
+    for(i=0;i<vesicle->filament_list->n;i++){
+        for(j=0;j<vesicle->filament_list->poly[i]->vlist->n;j++){
+            fwrite(vesicle->filament_list->poly[i]->vlist->vtx[j],sizeof(ts_vertex),1,fh);
+            /* dump offset for neigh and bond */
+            for(k=0;k<vesicle->filament_list->poly[i]->vlist->vtx[j]->neigh_no;k++){
+               // off=(ts_ulong)(vesicle->poly_list->poly[i]->vlist->vtx[j]->neigh[k]-vesicle->poly_list->poly[i]->vlist->vtx[0]);
+                fwrite(&vesicle->filament_list->poly[i]->vlist->vtx[j]->neigh[k]->idx,sizeof(ts_uint),1,fh); 
+            }
+            for(k=0;k<vesicle->filament_list->poly[i]->vlist->vtx[j]->bond_no;k++){
+                //off=(ts_ulong)(vesicle->poly_list->poly[i]->vlist->vtx[j]->bond[k]-vesicle->poly_list->poly[i]->blist->bond[0]);
+                fwrite(&vesicle->filament_list->poly[i]->vlist->vtx[j]->bond[k]->idx,sizeof(ts_uint),1,fh); 
+            }
+        }
+    }
+    /* dump poly bonds between monomers list*/
+    for(i=0;i<vesicle->filament_list->n;i++){
+        for(j=0;j<vesicle->filament_list->poly[i]->blist->n;j++){
+            fwrite(vesicle->filament_list->poly[i]->blist->bond[j],sizeof(ts_bond),1,fh);
+            /* dump vtx1 and vtx2 offsets */
+            //off=(ts_ulong)(vesicle->poly_list->poly[i]->blist->bond[j]->vtx1-vesicle->poly_list->poly[i]->vlist->vtx[0]);
+            fwrite(&vesicle->filament_list->poly[i]->blist->bond[j]->vtx1->idx,sizeof(ts_uint),1,fh); 
+//            off=(ts_ulong)(vesicle->poly_list->poly[i]->blist->bond[j]->vtx2-vesicle->poly_list->poly[i]->vlist->vtx[0]);
+            fwrite(&vesicle->filament_list->poly[i]->blist->bond[j]->vtx2->idx,sizeof(ts_uint),1,fh); 
+        }
+    }
+
+
+
 /* pointer offsets for fixing the restored pointers */
 /* need pointers for 
     vlist->vtx
@@ -130,8 +169,9 @@
         poly_list->poly->bond
 */
 
-	fwrite(vesicle->clist, sizeof(ts_cell_list),1,  fh);
-	
+//	fwrite(vesicle->clist, sizeof(ts_cell_list),1,  fh);
+/* write tape information on vesicle */
+//    fwrite(vesicle->tape,sizeof(ts_tape),1,fh);
 	fwrite(&iteration, sizeof(ts_uint),1,fh);
     fclose(fh);
     return TS_SUCCESS;
@@ -141,10 +181,10 @@
 /** RESTORE DUMP FROM DISK **/
 ts_vesicle *restore_state(ts_uint *iteration){
     ts_uint i,j,k;
-    FILE *fh=fopen("dump.bin","rb");
+    FILE *fh=fopen(command_line_args.dump_fullfilename,"rb");
 
     struct stat sb;
-    if (stat("dump.bin", &sb) == -1) {
+    if (stat(command_line_args.dump_fullfilename, &sb) == -1) {
         //dump file does not exist.
         return NULL;
     }
@@ -162,7 +202,7 @@
 /* we restore all the data from the dump */
     /* restore vesicle */
     ts_vesicle *vesicle=(ts_vesicle *)calloc(1,sizeof(ts_vesicle));
-    retval=fread(vesicle, sizeof(ts_vesicle),1,fh);
+    retval=fread(vesicle, sizeof(ts_vesicle)-sizeof(ts_double),1,fh);
 //	fprintf(stderr,"was here! %e\n",vesicle->dmax);
 
     /* restore vertex list */
@@ -180,6 +220,9 @@
     /* restore poly list */
     vesicle->poly_list=(ts_poly_list *)calloc(1,sizeof(ts_poly_list));
     retval=fread(vesicle->poly_list, sizeof(ts_poly_list),1,fh);
+    /* restore filament list */
+    vesicle->filament_list=(ts_poly_list *)calloc(1,sizeof(ts_poly_list));
+    retval=fread(vesicle->filament_list, sizeof(ts_poly_list),1,fh);
     /* level 1 complete */
 
 /* prerequisity. Bonds must be malloced before vertexes are recreated */
@@ -322,15 +365,66 @@
         }
     }
 
-// recreating space for cells // 
-	vesicle->clist=(ts_cell_list *)malloc(sizeof(ts_cell_list));
-	retval=fread(vesicle->clist, sizeof(ts_cell_list), 1,fh); 
-	vesicle->clist->cell=(ts_cell **)malloc(sizeof(ts_cell *)*vesicle->clist->ncmax[0]*vesicle->clist->ncmax[1]*vesicle->clist->ncmax[2]);
-	for(i=0;i<vesicle->clist->ncmax[0]*vesicle->clist->ncmax[1]*vesicle->clist->ncmax[2];i++){
-        	vesicle->clist->cell[i]=(ts_cell *)calloc(1,sizeof(ts_cell));
-        	vesicle->clist->cell[i]->idx=i+1; // We enumerate cells! Probably never required!
-    	}
+    /*restore filaments */
+    vesicle->filament_list->poly = (ts_poly **)calloc(vesicle->filament_list->n,sizeof(ts_poly *));
+    for(i=0;i<vesicle->filament_list->n;i++){
+        vesicle->filament_list->poly[i]=(ts_poly *)calloc(1,sizeof(ts_poly));
+        retval=fread(vesicle->filament_list->poly[i],sizeof(ts_poly),1,fh);
+        vesicle->filament_list->poly[i]->vlist=(ts_vertex_list *)calloc(1,sizeof(ts_vertex_list));
+        retval=fread(vesicle->filament_list->poly[i]->vlist,sizeof(ts_vertex_list),1,fh);
+        vesicle->filament_list->poly[i]->blist=(ts_bond_list *)calloc(1,sizeof(ts_bond_list));
+        retval=fread(vesicle->filament_list->poly[i]->blist,sizeof(ts_bond_list),1,fh);
+	/* initialize adress space for pointers that will hold specific vertices (monomers) and bonds */
+        vesicle->filament_list->poly[i]->vlist->vtx=(ts_vertex **)calloc(vesicle->filament_list->poly[i]->vlist->n,sizeof(ts_vertex *));
+        vesicle->filament_list->poly[i]->blist->bond=(ts_bond **)calloc(vesicle->filament_list->poly[i]->blist->n,sizeof(ts_bond *));
+	 for(j=0;j<vesicle->filament_list->poly[i]->vlist->n;j++){
+            vesicle->filament_list->poly[i]->vlist->vtx[j]=(ts_vertex *)malloc(sizeof(ts_vertex));
+	}
+	for(j=0;j<vesicle->filament_list->poly[i]->blist->n;j++){
+            vesicle->filament_list->poly[i]->blist->bond[j]=(ts_bond *)malloc(sizeof(ts_bond));
+	}
 
+    } 
+
+     
+    /* restore poly vertex(monomer) list*/
+    for(i=0;i<vesicle->filament_list->n;i++){
+        for(j=0;j<vesicle->filament_list->poly[i]->vlist->n;j++){
+            retval=fread(vesicle->filament_list->poly[i]->vlist->vtx[j],sizeof(ts_vertex),1,fh);
+           	 
+            /* restore neigh and bonds */
+            vesicle->filament_list->poly[i]->vlist->vtx[j]->neigh=(ts_vertex **)calloc(vesicle->filament_list->poly[i]->vlist->vtx[j]->neigh_no, sizeof(ts_vertex *));
+            for(k=0;k<vesicle->filament_list->poly[i]->vlist->vtx[j]->neigh_no;k++){
+                retval=fread(&idx,sizeof(ts_uint),1,fh);
+                vesicle->filament_list->poly[i]->vlist->vtx[j]->neigh[k]=vesicle->filament_list->poly[i]->vlist->vtx[idx];
+            }
+            vesicle->filament_list->poly[i]->vlist->vtx[j]->bond=(ts_bond **)calloc(vesicle->filament_list->poly[i]->vlist->vtx[j]->bond_no, sizeof(ts_bond *));
+            for(k=0;k<vesicle->filament_list->poly[i]->vlist->vtx[j]->bond_no;k++){
+                retval=fread(&idx,sizeof(ts_uint),1,fh);
+                vesicle->filament_list->poly[i]->vlist->vtx[j]->bond[k]=vesicle->filament_list->poly[i]->blist->bond[idx];
+            }
+
+        }
+    }
+
+    /* restore poly bonds between monomers list*/
+    for(i=0;i<vesicle->filament_list->n;i++){
+        for(j=0;j<vesicle->filament_list->poly[i]->blist->n;j++){
+       //     vesicle->poly_list->poly[i]->blist->bond[j]=(ts_bond *)malloc(sizeof(ts_bond));
+            retval=fread(vesicle->filament_list->poly[i]->blist->bond[j],sizeof(ts_bond),1,fh);
+            /* restore vtx1 and vtx2 */
+                retval=fread(&idx,sizeof(ts_uint),1,fh);
+                vesicle->filament_list->poly[i]->blist->bond[j]->vtx1=vesicle->filament_list->poly[i]->vlist->vtx[idx];
+                retval=fread(&idx,sizeof(ts_uint),1,fh);
+                vesicle->filament_list->poly[i]->blist->bond[j]->vtx2=vesicle->filament_list->poly[i]->vlist->vtx[idx];
+        }
+    }
+    vesicle->tape=parsetape(command_line_args.tape_fullfilename);
+// recreating space for cells // 
+    vesicle->clist=init_cell_list(vesicle->tape->ncxmax, vesicle->tape->ncymax, vesicle->tape->nczmax, vesicle->tape->stepsize);
+	vesicle->clist->max_occupancy=8;
+//    vesicle->tape=(ts_tape *)malloc(sizeof(ts_tape));
+//    retval=fread(vesicle->tape, sizeof(ts_tape),1,fh);
 	retval=fread(iteration,sizeof(ts_uint),1,fh);
     if(retval); 
     fclose(fh);
@@ -343,9 +437,10 @@
     int c, retval;
     struct stat sb;
     sprintf(command_line_args.path, "./"); //clear string;
-    sprintf(command_line_args.output_fullfilename,"./output.pvd");
-    sprintf(command_line_args.dump_fullfilename,"./dump.bin");
-    sprintf(command_line_args.tape_fullfilename,"./tape");
+    sprintf(command_line_args.output_fullfilename,"output.pvd");
+    sprintf(command_line_args.dump_fullfilename,"dump.bin");
+    sprintf(command_line_args.tape_fullfilename,"tape");
+    sprintf(command_line_args.tape_templatefull,"./tape");
             FILE *file;
     
 while (1)
@@ -358,12 +453,15 @@
            {"output-file",  required_argument, 0, 'o'},
            {"directory",  required_argument, 0, 'd'},
            {"dump-filename", required_argument,0, 'f'},
+           {"tape-options",required_argument,0,'c'},
+           {"tape-template", required_argument,0,0},
+            {"restore-from-vtk",required_argument,0,0},
            {0, 0, 0, 0}
          };
        /* getopt_long stores the option index here. */
        int option_index = 0;
 
-       c = getopt_long (argc, argv, "d:f:o:t:",
+       c = getopt_long (argc, argv, "d:f:o:t:c:",
                         long_options, &option_index);
 
        /* Detect the end of the options. */
@@ -376,31 +474,27 @@
            /* If this option set a flag, do nothing else now. */
            if (long_options[option_index].flag != 0)
              break;
-           printf ("option %s", long_options[option_index].name);
+/*           printf ("option %s", long_options[option_index].name);
            if (optarg)
-             printf (" with arg %s", optarg);
-           printf ("\n");
+             printf (" with arg %s", optarg); 
+           printf ("\n"); */
+            //TODO: find a better way.
+            if(strcmp(long_options[option_index].name,"tape-template")==0){
+                strcpy(command_line_args.tape_templatefull,optarg);
+            }
+            if(strcmp(long_options[option_index].name,"restore-from-vtk")==0){
+                strcpy(command_line_args.dump_from_vtk,optarg);
+            }
            break;
 
-         case 't':
-            //check if tape exists. If not, fail immediately.
-            if (stat(optarg, &sb) == -1) {
-                ts_fprintf(stderr,"Tape '%s' does not exist!\n",optarg);
-                fatal("Please select correct tape",1);
-            } else {
+         case 'c':
+              strcpy(command_line_args.tape_opts,optarg);
+            break;
+         case 't': //tape
                 strcpy(command_line_args.tape_fullfilename,optarg);
-            }
            break;
 
-         case 'o':
-            //set filename of master output file
-            if ((file = fopen(optarg, "w")) == NULL) {
-                fprintf(stderr,"Could not create output file!\n");
-                fatal("Please specify correct output file",1);
-                
-            } else {
-                fclose(file);
-            }
+         case 'o':  //set filename of master pvd output file
             strcpy(command_line_args.output_fullfilename, optarg);
             break;
 
@@ -425,14 +519,6 @@
            break;
 
         case 'f':
-            //check if dump file specified exists. Defaults to dump.bin
-            if ((file = fopen(optarg, "w")) == NULL) {
-                fprintf(stderr,"Could not create dump file!\n");
-                fatal("Please specify correct dump file",1);
-                
-            } else {
-                fclose(file);
-            }
             strcpy(command_line_args.dump_fullfilename, optarg);
             break;
 
@@ -448,10 +534,64 @@
          }
      }
 
+//Here we set correct values for full filenames!
+    char *buffer=(char *)malloc(10000*sizeof(char));
+    //correct the path and add trailing /
+    if(command_line_args.path[strlen(command_line_args.path)-1]!='/') strcat(command_line_args.path,"/");
+   
+/* master pvd output file */ 
+    strcpy(buffer,command_line_args.path);
+    strcat(buffer,command_line_args.output_fullfilename);
+    if ((file = fopen(buffer, "w")) == NULL) {
+                fprintf(stderr,"Could not create output file %s!\n", buffer);
+                fatal("Please specify correct output file or check permissions of the file",1);
+                //there is a tape template. make a copy into desired directory
+                
+            } else {
+                fclose(file);
+                strcpy(command_line_args.output_fullfilename,buffer);
+            }
+
+/* tape file */
+    strcpy(buffer,command_line_args.path);
+    strcat(buffer,command_line_args.tape_fullfilename);
+    if (stat(buffer, &sb) == -1) {
+
+                //tape does not exist. does tape template exist?
+                if(stat(command_line_args.tape_templatefull, &sb)==-1){ 
+                    ts_fprintf(stderr,"Tape '%s' does not exist and no tape template was specified (or does not exist)!\n",buffer);
+                    fatal("Please select correct tape or check permissions of the file",1);
+                } else {
+                    //tape template found
+                    fatal("Samo did not program template copy yet",1); 
+                }
+            } else {
+                strcpy(command_line_args.tape_fullfilename,buffer);
+            }
+
+
+/* dump file */
+            strcpy(buffer,command_line_args.path);
+            strcat(buffer,command_line_args.dump_fullfilename);
+            //check if dump file exist first.
+            if (stat(buffer, &sb) == -1) {
+                //no dump file. check if we can create one.
+                if ((file = fopen(buffer, "w")) == NULL) {
+                    fprintf(stderr,"Could not create dump file '%s'!\n",buffer);
+                    fatal("Please specify correct dump file or check permissions of the file",1);
+                } else {
+                    fclose(file);
+                    //good, file is writeable. delete it for now.
+                    remove(buffer);
+                }
+            }
+            strcpy(command_line_args.dump_fullfilename, buffer);
+
+
+    free(buffer);
     return TS_SUCCESS;
 
 }
-
 
 
 
@@ -623,7 +763,7 @@
         }
 
 	fprintf(fh,"<?xml version=\"1.0\"?>\n<VTKFile type=\"Collection\" version=\"0.1\" byte_order=\"LittleEndian\" compressor=\"vtkZLibDataCompressor\">\n<Collection>");
-	DIR *dir = opendir(".");
+	DIR *dir = opendir(command_line_args.path);
 	if(dir){
 		struct dirent *ent;
         tstep=0;
@@ -652,10 +792,13 @@
 	ts_bond_list *blist=vesicle->blist;
 	ts_vertex **vtx=vlist->vtx;
     ts_uint i,j;
-    	char filename[255];
+    	char filename[10000];
+        char just_name[255];
 	FILE *fh;
+        strcpy(filename,command_line_args.path);
+    	sprintf(just_name,"timestep_%.6u.vtu",timestepno);
+        strcat(filename,just_name);
 
-    	sprintf(filename,"timestep_%.6u.vtu",timestepno);
 	fh=fopen(filename, "w");
 	if(fh==NULL){
 		err("Cannot open file %s for writing");
@@ -682,7 +825,9 @@
 		}
 	}
 
-	fprintf(fh, "<?xml version=\"1.0\"?>\n<VTKFile type=\"UnstructuredGrid\" version=\"0.1\" byte_order=\"LittleEndian\" compressor=\"vtkZLibDataCompressor\">\n <UnstructuredGrid>\n");
+	fprintf(fh, "<?xml version=\"1.0\"?>\n<VTKFile type=\"UnstructuredGrid\" version=\"0.1\" byte_order=\"LittleEndian\" compressor=\"vtkZLibDataCompressor\">\n");
+	xml_trisurf_data(fh,vesicle);
+	fprintf(fh, " <UnstructuredGrid>\n");
     fprintf(fh, "<Piece NumberOfPoints=\"%u\" NumberOfCells=\"%u\">\n",vlist->n+monono*polyno+fonono*filno, blist->n+monono*polyno+filno*(fonono-1));
     fprintf(fh,"<PointData Scalars=\"scalars\">\n<DataArray type=\"Int64\" Name=\"scalars\" format=\"ascii\">");
    	for(i=0;i<vlist->n;i++){
@@ -821,16 +966,56 @@
 
 
 
+ts_bool write_pov_file(ts_vesicle *vesicle, char *filename){
+	FILE *fh;
+	ts_uint i;
+	
+	fh=fopen(filename, "w");
+	if(fh==NULL){
+		err("Cannot open file %s for writing");
+		return TS_FAIL;
+	}
+
+	for(i=0;i<vesicle->tlist->n;i++){
+	
+	fprintf(fh,"\ttriangle {");
+	fprintf(fh,"\t<%e,%e,%e> <%e,%e,%e> <%e,%e,%e> }\n", 
+	vesicle->tlist->tria[i]->vertex[0]->x,
+	vesicle->tlist->tria[i]->vertex[0]->y,
+	vesicle->tlist->tria[i]->vertex[0]->z,
+
+	vesicle->tlist->tria[i]->vertex[1]->x,
+	vesicle->tlist->tria[i]->vertex[1]->y,
+	vesicle->tlist->tria[i]->vertex[1]->z,
+
+	vesicle->tlist->tria[i]->vertex[2]->x,
+	vesicle->tlist->tria[i]->vertex[2]->y,
+	vesicle->tlist->tria[i]->vertex[2]->z
+	);
+	}
+		
+	fclose(fh);
+	return TS_SUCCESS;
+}
+
+
 ts_tape *parsetape(char *filename){
-  //  long int nshell=17,ncxmax=60, ncymax=60, nczmax=60, npoly=10, nmono=20, pswitch=0;  // THIS IS DUE TO CONFUSE BUG!
+	FILE *fd = fopen (filename, "r");
+	long length;
+	size_t size;
+	fseek (fd, 0, SEEK_END);
+  	length = ftell (fd);
+	fseek (fd, 0, SEEK_SET);
+	size=fread (tapetxt, 1, length, fd);
+	fclose(fd);
+	if(size);
+	ts_tape *tape=parsetapebuffer(tapetxt);
+	return tape;
+}
+
+ts_tape *parsetapebuffer(char *buffer){
     ts_tape *tape=(ts_tape *)calloc(1,sizeof(ts_tape));
     tape->multiprocessing=calloc(255,sizeof(char));
-  /*  long int brezveze0=1;
-    long int brezveze1=1;
-    long int brezveze2=1;
-    ts_double xk0=25.0, dmax=1.67,stepsize=0.15,kspring=800.0,pressure=0.0;
-	long int iter=1000, init=1000, mcsw=1000;
-*/	
 
     cfg_opt_t opts[] = {
         CFG_SIMPLE_INT("nshell", &tape->nshell),
@@ -840,10 +1025,15 @@
 	CFG_SIMPLE_INT("nfono",&tape->nfono),
 	CFG_SIMPLE_INT("R_nucleus",&tape->R_nucleus),
 	CFG_SIMPLE_FLOAT("dmax", &tape->dmax),
+	CFG_SIMPLE_FLOAT("dmin_interspecies", &tape->dmin_interspecies),
         CFG_SIMPLE_FLOAT("xk0",&tape->xk0),
 	CFG_SIMPLE_INT("pswitch",&tape->pswitch),
+	CFG_SIMPLE_INT("constvolswitch",&tape->constvolswitch),
+	CFG_SIMPLE_INT("constareaswitch",&tape->constareaswitch),
+	CFG_SIMPLE_FLOAT("constvolprecision",&tape->constvolprecision),
 	CFG_SIMPLE_FLOAT("pressure",&tape->pressure),
 	CFG_SIMPLE_FLOAT("k_spring",&tape->kspring),
+	CFG_SIMPLE_FLOAT("xi",&tape->xi),
         CFG_SIMPLE_FLOAT("stepsize",&tape->stepsize),
         CFG_SIMPLE_INT("nxmax", &tape->ncxmax),
         CFG_SIMPLE_INT("nymax", &tape->ncymax),
@@ -856,12 +1046,13 @@
         CFG_SIMPLE_INT("smp_cores",&tape->brezveze0),
         CFG_SIMPLE_INT("cluster_nodes",&tape->brezveze1),
         CFG_SIMPLE_INT("distributed_processes",&tape->brezveze2),
+	CFG_SIMPLE_INT("spherical_harmonics_coefficients",&tape->shc),
         CFG_END()
     };
     cfg_t *cfg;    
     ts_uint retval;
     cfg = cfg_init(opts, 0);
-    retval=cfg_parse(cfg, filename);
+    retval=cfg_parse_buf(cfg, buffer);
     if(retval==CFG_FILE_ERROR){
 	fatal("No tape file.",100);
 	}
@@ -869,6 +1060,8 @@
 	fatal("Invalid tape!",100);
 	}
 
+    /* here we override all values read from tape with values from commandline*/
+    getcmdline_tape(cfg,command_line_args.tape_opts);
     cfg_free(cfg);
 
 
@@ -884,6 +1077,65 @@
 }
 
 
+
+ts_bool getcmdline_tape(cfg_t *cfg, char *opts){
+
+	char *commands, *backup, *saveptr, *saveopptr, *command, *operator[2];
+	ts_uint i,j;
+	commands=(char *)malloc(10000*sizeof(char));
+    backup=commands; //since the pointer to commands will be lost, we acquire a pointer that will serve as backup.
+	strcpy(commands,opts);
+	for(i=0; ;i++, commands=NULL){
+		//breaks comma separated list of commands into specific commands.
+		command=strtok_r(commands,",",&saveptr);	
+		if(command==NULL) break;
+//		fprintf(stdout,"Command %d: %s\n",i,command);	
+		//extracts name of command and value of command into operator[2] array.
+		for(j=0; j<2;j++,command=NULL){
+			operator[j]=strtok_r(command,"=",&saveopptr);
+			if(operator[j]==NULL) break;
+//			fprintf(stdout," ---> Operator %d: %s\n",j,operator[j]);		
+		}
+		//1. check: must have 2 operators.
+		if(j!=2) fatal("Error. Command line tape options are not formatted properly",1);
+
+    //    cfg_setstr(cfg,operator[0],operator[1]);
+        cmdline_to_tape(cfg,operator[0],operator[1]);
+		//2. check: must be named properly.
+		//3. check: must be of right format (integer, double, string, ...)
+        
+	}
+	free(backup);
+    return TS_SUCCESS;
+}
+
+
+ts_bool cmdline_to_tape(cfg_t *cfg, char *key, char *val){
+
+    cfg_opt_t *cfg_opt=cfg_getopt(cfg,key);
+    if(cfg_opt==NULL) fatal("Commandline tape option not recognised",1); //return TS_FAIL; 
+    switch (cfg_opt->type){
+        case CFGT_INT:
+            cfg_setint(cfg,key,atol(val));
+            break;
+        case CFGT_FLOAT:
+            cfg_setfloat(cfg,key,atof(val));
+            break;
+/*        case CFGT_BOOL:
+            cfg_setbool(cfg,operator[0],operator[1]);
+            break; */
+        case CFGT_STR:
+            cfg_setstr(cfg,key,val);
+            break;
+        default:
+            break;
+
+    }
+    return TS_SUCCESS;
+}
+
+
+
 ts_bool read_geometry_file(char *fname, ts_vesicle *vesicle){
 	FILE *fh;
     ts_uint i, nvtx,nedges,ntria;

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