axis.setStart(1);
axis.setEnd(2);
DoubleDiffer d = new DoubleDiffer(.0000001);
d.assertClose(1, axis.toLogical(-1));
d.assertClose(1.5, axis.toLogical(49));
d.assertClose(2, axis.toLogical(99));
axis.setSize(130, 10);
axis.setStartMargin(10);
axis.setEndMargin(20);
d.assertClose(1, axis.toLogical(9));