Generic Properties of Curvature Sensing through Vision and Touch
Figure 1
Ellipses were generated in AUTOCAD following the principle of planar projection of ellipses by affinity with concentric circles (a). The major and minor axes of symmetry of an ellipse determine sagitta, or maximum height (), and chordlength, or width (), of the curved contour of half that ellipse. For this study, the ellipses were cut in half at an axis of symmetry (b) to generate curve stimuli with varying orientation (upward and downward), height (), and width ().
