Quelltext der Konstruktion

  board = JXG.JSXGraph.initBoard('jxgbox', {boundingbox:[-4, 6, 10, -4], axis: true, grid: false,
                                 keepaspectratio: true, showcopyright: false});
  p1 = board.createElement('point', [0, 0]);
  p2 = board.createElement('point', [6, -1]);
  c1 = board.createElement('circle', [p1, 2]);
  c2 = board.createElement('circle', [p2, 1.5]);
  g1 = board.createElement('glider', [6, 3, c1], {name:"D"});
  c3 = board.createElement('circle', [g1, 4]);
  g2 = board.createElement('intersection', [c2,c3,0], {name: "I"});
  m1 = board.createElement('midpoint', [g1,g2], {name:"T",trace:false});

  loc = board.createElement('locus', [m1], {strokeColor: 'red', strokeWidth: '1px'});