Line2D line1 = new Line2D.Double(0.0, 0.0, 1.0, 0.0);
harness.check(50.0, line1.ptSegDist(-50.0, 0.0));
harness.check(0.0, line1.ptSegDist(0.0, 0.0));
harness.check(0.0, line1.ptSegDist(1.0, 0.0));
harness.check(49.0, line1.ptSegDist(50.0, 0.0));
harness.check(Math.sqrt(2501.0), line1.ptSegDist(-50.0, 1.0));
harness.check(1.0, line1.ptSegDist(0.0, 1.0));
harness.check(1.0, line1.ptSegDist(1.0, 1.0));
harness.check(Math.sqrt(49.0*49.0+1.0), line1.ptSegDist(50.0, 1.0));
harness.check(Math.sqrt(2501.0), line1.ptSegDist(-50.0, -1.0));
harness.check(1.0, line1.ptSegDist(0.0, -1.0));