Unit: 2.5, // tick marks at each multiple of 2.5
                    stretch: go.Stretch.None // needed to avoid unnecessary re-measuring!!!
                  })
                  .apply(applyCommonScaleBindings)
                  .add(
                    // the main path of the graduated panel, an arc starting at 135 degrees and sweeping for 270 degrees
                    new go.Shape({
                      name: 'PATH',
                      geometryString: 'M-70.7107 70.7107 B135 270 0 0 100 100 M0 10