Area, perimeter and derivatives of a skin curve

Bendsøe, 1995 1993 Bowman, 1961 R. Bryant, H. Edelsbrunner, P. Koehl, M. Levitt, The area derivative of a space-filling diagram, Manuscript, 2001 Cheng, 2001, Dynamic skin triangulation, Discrete Comput. Geom., 25, 525, 10.1007/s00454-001-0007-1 H.-L. Cheng, H. Edelsbrunner, Area and perimeter derivatives of a union of disks, Manuscript, 2001 Cheng, 2001, Shape space from deformation, Computational Geometry, 19, 191, 10.1016/S0925-7721(01)00021-9 Cheng, 2001, Design and analysis of planar shape deformation, Computational Geometry, 19, 205, 10.1016/S0925-7721(01)00020-7 Edelsbrunner, 1995, The union of balls and its dual shape, Discrete Comput. Geom., 13, 415, 10.1007/BF02574053 Edelsbrunner, 1999, Deformable smooth surface design, Discrete Comput. Geom., 21, 87, 10.1007/PL00009412