ogdf/_examples/basic/manual/main.cpp

#include <ogdf/basic/Graph.h>
#include <ogdf/basic/GraphAttributes.h>
#include <ogdf/fileformats/GraphIO.h>

using namespace ogdf;

int main()
{
    Graph G;
    GraphAttributes GA(G, GraphAttributes::nodeGraphics | GraphAttributes::edgeGraphics);

    const int LEN = 11;
    for(int i = 1; i < LEN; ++i)
    {
        node left = G.newNode();
        GA.x(left) = -5 * (i + 1);
        GA.y(left) = -20 * i;
        GA.width(left) = 10 * (i + 1);
        GA.height(left) = 15;

        node bottom = G.newNode();
        GA.x(bottom) = 20 * (LEN - i);
        GA.y(bottom) = 5 * (LEN + 1 - i);
        GA.width(bottom) = 15;
        GA.height(bottom) = 10 * (LEN + 1 - i);

        edge e = G.newEdge(left, bottom);
        DPolyline & p = GA.bends(e);
        p.pushBack(DPoint(10, -20 * i));
        p.pushBack(DPoint(20 * (LEN - i), -10));
    }

    GraphIO::writeGML(GA, "manual_graph.gml");

    return 0;
}