1 | // -*- c++ -*- |
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2 | |
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3 | // Use a DIMACS max flow file as stdin. |
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4 | // dim_to_dot < dimacs_max_flow_file > dot_output_file |
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5 | // This program makes a dot file from a dimacs max flow file. |
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6 | // This program can be an aid in making up to date visualized documantation |
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7 | // of demo programs. |
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8 | |
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9 | #include <iostream> |
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10 | #include <fstream> |
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11 | |
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12 | #include <lemon/smart_graph.h> |
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13 | #include <lemon/dimacs.h> |
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14 | |
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15 | using namespace lemon; |
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16 | |
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17 | using std::cout; |
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18 | using std::endl; |
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19 | |
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20 | int main() |
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21 | { |
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22 | typedef SmartGraph Graph; |
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23 | |
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24 | typedef Graph::Edge Edge; |
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25 | typedef Graph::Node Node; |
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26 | typedef Graph::EdgeIt EdgeIt; |
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27 | typedef Graph::NodeIt NodeIt; |
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28 | typedef Graph::EdgeMap<int> LengthMap; |
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29 | |
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30 | Graph g; |
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31 | Node s, t; |
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32 | LengthMap length(g); |
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33 | |
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34 | readDimacs(std::cin, g, length, s, t); |
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35 | |
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36 | cout << "digraph lemon_dot_example {" << endl; |
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37 | cout << " node [ shape=ellipse, fontname=Helvetica, fontsize=10 ];" << endl; |
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38 | for(NodeIt n(g); n!=INVALID; ++n) { |
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39 | if (n==s) { |
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40 | cout << " n" << g.id(n) |
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41 | << " [ label=\"" << g.id(n) << " (s)\" ]; " << endl; |
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42 | } else { |
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43 | if (n==t) { |
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44 | cout << " n" << g.id(n) |
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45 | << " [ label=\"" << g.id(n) << " (t)\" ]; " << endl; |
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46 | } else { |
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47 | cout << " n" << g.id(n) |
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48 | << " [ label=\"" << g.id(n) << "\" ]; " << endl; |
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49 | } |
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50 | } |
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51 | } |
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52 | cout << " edge [ shape=ellipse, fontname=Helvetica, fontsize=10 ];" << endl; |
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53 | for(EdgeIt e(g); e!=INVALID; ++e) { |
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54 | cout << " n" << g.id(g.tail(e)) << " -> " << " n" << g.id(g.head(e)) |
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55 | << " [ label=\"" << g.id(e) |
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56 | << ", length:" << length[e] << "\" ]; " << endl; |
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57 | } |
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58 | cout << "}" << endl; |
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59 | } |
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