Changeset - r191:abc5b9d0c67e
« 190:1e6af6
193:65cba1 »
gravatar
kpeter (Peter Kovacs)
kpeter@inf.elte.hu
lgf_demo.cc is merged with reader_writer_demo.cc (from SVN -r3501)
0 1 0
default
1 file changed with 17 insertions and 13 deletions:
demo/lgf_demo.cc
17
13
↑ Collapse diff ↑
demo/lgf_demo.cc
Ignore white space 6 line context
... ... 
@@ -20,22 +20,21 @@
20 20 
///\file
21 21 
///\brief Demonstrating graph input and output
22 22 
///
23 
/// This program gives an example of how to load a directed graph from
24 
/// an \ref lgf-format "LGF" file with the \ref lemon::DigraphReader
25 
/// "DigraphReader" class.
23 
/// This program gives an example of how to read and write a digraph
24 
/// and additional maps from/to a stream or a file using the
25 
/// \ref lgf-format "LGF" format.
26 26 
///
27 27 
/// The \c "digraph.lgf" file:
28 28 
/// \include digraph.lgf
29 29 
///
30 
/// And the program which reads it:
30 
/// And the program which reads it and prints the digraph to the
31 
/// standard output:
31 32 
/// \include lgf_demo.cc
32 33 

			




	33
	34
	
		
#include <iostream>


			




	34
	35
	
		
#include <lemon/smart_graph.h>


			




	35
	36
	
		
#include <lemon/lgf_reader.h>


			




	36
	37
	
		
#include <lemon/lgf_writer.h>


			




	37
	
	
		
#include <lemon/random.h>


			




	38
	
	
		

			




	39
	38
	
		

			




	40
	39
	
		
using namespace lemon;


			




	41
	40
	
		

			




	...
	...
	
		
@@ -43,14 +42,19 @@


			




	43
	42
	
		
  SmartDigraph g;


			




	44
	43
	
		
  SmartDigraph::ArcMap<int> cap(g);


			




	45
	44
	
		
  SmartDigraph::Node s, t;


			




	
	45
	
		
  


			




	
	46
	
		
  try {


			




	
	47
	
		
    digraphReader("digraph.lgf", g). // read the directed graph into g


			




	
	48
	
		
      arcMap("capacity", cap).       // read the 'capacity' arc map into cap


			




	
	49
	
		
      node("source", s).             // read 'source' node to s


			




	
	50
	
		
      node("target", t).             // read 'target' node to t


			




	
	51
	
		
      run();


			




	
	52
	
		
  } catch (DataFormatError& error) { // check if there was any error


			




	
	53
	
		
    std::cerr << "Error: " << error.what() << std::endl;


			




	
	54
	
		
    return -1;


			




	
	55
	
		
  }


			




	46
	56
	
		

			




	47
	
	
		
  digraphReader("digraph.lgf", g). // read the directeg graph into g


			




	48
	
	
		
    arcMap("capacity", cap).       // read the 'capacity' arc map into cap


			




	49
	
	
		
    node("source", s).             // read 'source' node to s


			




	50
	
	
		
    node("target", t).             // read 'target' node to t


			




	51
	
	
		
    run();


			




	52
	
	
		

			




	53
	
	
		
  std::cout << "Digraph read from 'digraph.lgf'" << std::endl;


			




	
	57
	
		
  std::cout << "A digraph is read from 'digraph.lgf'." << std::endl;


			




	54
	58
	
		
  std::cout << "Number of nodes: " << countNodes(g) << std::endl;


			




	55
	59
	
		
  std::cout << "Number of arcs: " << countArcs(g) << std::endl;


			




	56
	60
	
		

			




        

    






    
    



    


    

     
    
0 comments (0 inline)