A Shape Deformation Tool to Model Character Lines in the Early Design Phases

Figure 11: Examples with a planar patch of degree 5 having an array of 20*20 control vertices. 30 constraints along a circular limiting line and 8 constraints on the character line have been defined (a). All vertices outside the limiting line are blocked. The Gaussian curvature map is limited to [-0,0005; 0,0005] obtained with only position constraints on both lines (c), with position and tangency constraints on the limiting line and position constraints on the character line ( d), and with a relaxation at the extremities of the character line (b.e ).