diff -r b143e42c44de -r e4cc8e996912 src/work/peter/xy-reader.cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/work/peter/xy-reader.cc	Wed Mar 30 14:29:55 2005 +0000
@@ -0,0 +1,69 @@
+#include <fstream>
+#include <iostream>
+
+#include <lemon/xy.h>
+#include <lemon/concept/maps.h>
+#include <lemon/error.h>
+#include <lemon/list_graph.h>
+#include <lemon/graph_reader.h>
+#include <lemon/graph_utils.h>
+
+using namespace lemon;
+
+typedef ListGraph Graph;
+typedef xy<double> Coordinates;
+typedef Graph::NodeMap<Coordinates> CoordinatesMap;
+typedef Graph::Node Node;
+
+class CoordReaderMap: public concept::WriteMap<Node, double>
+{
+    CoordinatesMap * cm;
+    char xoy;
+
+public:
+    CoordReaderMap(char xory, CoordinatesMap * coordmap): concept::WriteMap<Node, double>() ,cm(coordmap)
+    {
+	switch(xory)
+	{
+	    case 'x':
+	    case 'y':
+		xoy=xory;
+		break;
+	    default:
+		throw UninitializedParameter() ;
+	}
+    }
+
+    void set(Node node, double coord)
+    {
+	switch(xoy)
+	{
+	    case 'x':
+		(*cm)[node].x=coord;
+		break;
+	    case 'y':
+		(*cm)[node].y=coord;
+		break;
+	    default:
+		throw UninitializedParameter() ;
+	}
+    }
+};
+
+int main(void)
+{
+    Graph g;
+    CoordinatesMap cm(g);
+
+    CoordReaderMap xreader('x',&cm);
+    CoordReaderMap yreader('y',&cm);
+
+    std::ifstream is("dijkstra_test.lemon");
+    
+    GraphReader<Graph> reader(is, g);
+    reader.addNodeMap("coordinates_x", xreader);
+    reader.addNodeMap("coordinates_y", yreader);
+    reader.run();
+    
+    return 0;
+}