Changeset 1560:01707a8a4ca6 in lemon-0.x for demo/coloring.cc

Timestamp:

07/15/05 18:01:55 (19 years ago)

Author:

athos

Branch:

default

Phase:

public

Convert:

svn:c9d7d8f5-90d6-0310-b91f-818b3a526b0e/lemon/trunk@2058

Message:

Some demo programs got some interface. Most progress with lp_maxflow_demo.cc, which also got documented.

File:

• demo/coloring.cc (modified) (2 diffs)

demo/coloring.cc

@@ -6 +6 @@
 #include <lemon/graph_to_eps.h>
 
+#include <fstream>
+#include <iostream>
+
+
 using namespace std;
 using namespace lemon;
 
-int main() {
+int main(int argc, char *argv[]) 
+{
+  if(argc<2)
+  {
+      std::cerr << "USAGE: coloring <input_file.lgf>" << std::endl;
+      std::cerr << "The file 'input_file.lgf' has to contain a graph in LEMON format together with a nodemap called 'coords' to draw the graph (e.g. sample.lgf is not such a file)." << std::endl;
+      return 0;
+  }
+
+
+  //input stream to read the graph from
+  std::ifstream is(argv[1]);
+
   typedef UndirSmartGraph Graph;
   typedef Graph::Node Node;
@@ -18 +34 @@
   Graph graph;
 
-  UndirGraphReader<Graph> reader(std::cin, graph);
+  UndirGraphReader<Graph> reader(is, graph);
   Graph::NodeMap<xy<double> > coords(graph);
   reader.readNodeMap("coords", coords);