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function [ ] = createSVG( pre )
% This function will create a JSON file for network visualization.
%
% Input:
% 1) prestructure_input.txt
% Structure file.
% 2) prestructure_input_temp.txt
% Structure file with model averaging scores.
% 3) pregrviz_name_file.txt
% Node names in graph viz file.
% 4) pregraphviz.txt
% Original graphviz input file.
%
% Output:
% pregraphviz_svg.txt-- Modified graphviz input file.
%
% open file for input, include error handling
dfile=strcat(pre,'structure_input.txt');
fin = fopen(dfile,'r');
if fin < 0
error(['Could not open ',dfile,' for input']);
end
% Read in first line to get the number of nodes and the node labels.
buffer = fgetl(fin); %get header line as a string
nnodes = numel(strfind(buffer,"\t")) + 1;
labels = cell(1,nnodes);
for j=1:nnodes
[next,buffer] = strtok(buffer);
labels{j} = next;
end
% Read in the edges
edges = cell(nnodes,nnodes);
for i = 1:nnodes
buffer = fgetl(fin);
for j = 1:nnodes
[next,buffer] = strtok(buffer);
edges{i,j} = next;
end
end
% open file to read in model averaging scores
dfile2=strcat(pre,'structure_input_temp.txt');
if (exist(dfile2) == 0)
scores = cell(nnodes,nnodes);
for i = 1:nnodes
for j = 1:nnodes
scores{i,j} = edges{i,j};
end
end
else
fin2 = fopen(dfile2,'r');
if fin2 < 0
error(['Could not open ',dfile2,' for input']);
end
buffer = fgetl(fin2); %get header line as a string
% Read in the scores
scores = cell(nnodes,nnodes);
for i = 1:nnodes
buffer = fgetl(fin2);
for j = 1:nnodes
[next,buffer] = strtok(buffer);
scores{i,j} = next;
end
end
end
% open file to get positions of variables
dfile3=strcat(pre,'grviz_name_file.txt');
fin3 = fopen(dfile3,'r');
if fin3 < 0
error(['Could not open ',dfile3,' for input']);
end
grphviz_names = cell(nnodes);
for j=1:nnodes
[next,buffer] = strtok(buffer);
grphviz_names{j} = next;
end
nedges = 0;
sources = [];
targets = [];
scores1 = [];
for i = 1:nnodes
for j = 1:nnodes
if edges{i,j} == "1"
nedges = nedges + 1;
sources = [sources; i];
targets = [targets; j];
scores1 = [scores1; str2num(scores{i,j})];
end
end
end
outfile = strcat(pre,'graphviz_svg.txt');
fout = fopen(outfile,'w');
fprintf(fout,"digraph G {\n");
%fprintf(fout,"size=\"10,10\"; ratio = fill;\n");
fprintf(fout,"size=\"10,10\"; remincross = true;\n");
fprintf(fout,"node [shape=rectangle, width=1.0, fontsize=22];\n");
fprintf(fout,"edge [fontsize=16];\n");
for i = 1:nedges
fprintf(fout,"\"%s\" -> \"%s\" [ label=\"%3.2f\", penwidth=\"%3.2f\" ];\n",labels{sources(i)},labels{targets(i)},scores1(i),2*scores1(i));
end
fprintf(fout,"}/n");
fclose(fout);
outfile2 = strcat(pre,'graphviz_svg_no_edge.txt');
fout2 = fopen(outfile2,'w');
fprintf(fout2,"digraph G {\n");
%fprintf(fout,"size=\"10,10\"; ratio = fill;\n");
fprintf(fout2,"size=\"10,10\"; remincross = true;\n");
fprintf(fout2,"node [shape=rectangle, width=1.0, fontsize=22];\n");
fprintf(fout2,"edge [fontsize=16];\n");
for i = 1:nedges
fprintf(fout,"\"%s\" -> \"%s\" [ penwidth=\"%3.2f\" ];\n",labels{sources(i)},labels{targets(i)},2*scores1(i));
end
fprintf(fout2,"}/n");
fclose(fout2);
end
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