1. A method for animating artwork based on handle movement on the artwork, the method comprising: generating a mesh based on the artwork, wherein the mesh comprises triangles with vertices on the artwork, wherein bounded biharmonic weights for handles represent significance of individual handles to individual vertices of the mesh; receiving a movement of a handle of the handles; based on the movement, minimizing a closed-form expression to find handle affine transformations that provide a deformation of the artwork with minimal stretching, shearing, and skewing in local areas; and animating the artwork by transforming the vertices of the mesh according to the determined handle affine transformations and the biharmonic weights.